/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/loops/sum_array-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-1a84f73 [2021-05-01 06:53:29,020 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-01 06:53:29,025 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-01 06:53:29,080 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-01 06:53:29,113 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-01 06:53:29,114 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-01 06:53:29,115 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-01 06:53:29,116 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-01 06:53:29,117 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-01 06:53:29,118 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-01 06:53:29,119 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-01 06:53:29,121 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-01 06:53:29,123 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-01 06:53:29,130 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-01 06:53:29,150 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-01 06:53:29,152 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-01 06:53:29,155 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-01 06:53:29,175 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-01 06:53:29,177 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-01 06:53:29,179 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-01 06:53:29,186 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2021-05-01 06:53:29,211 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-01 06:53:29,211 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-01 06:53:29,217 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-01 06:53:29,218 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-01 06:53:29,218 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-01 06:53:29,218 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-01 06:53:29,219 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-01 06:53:29,219 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-01 06:53:29,219 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-01 06:53:29,219 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-01 06:53:29,221 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-01 06:53:29,221 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-01 06:53:29,221 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-01 06:53:29,221 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-01 06:53:29,222 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-01 06:53:29,222 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-01 06:53:29,222 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-01 06:53:29,223 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-01 06:53:29,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-01 06:53:29,223 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-01 06:53:29,223 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-05-01 06:53:29,223 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-01 06:53:29,223 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2021-05-01 06:53:29,224 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-01 06:53:29,706 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-01 06:53:29,735 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-01 06:53:29,738 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-01 06:53:29,740 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-01 06:53:29,745 INFO L275 PluginConnector]: CDTParser initialized [2021-05-01 06:53:29,747 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/sum_array-2.i [2021-05-01 06:53:29,826 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99e60bbeb/f9258223f3aa4427a73ece70a5a0cc37/FLAGe6e71168c [2021-05-01 06:53:30,878 INFO L306 CDTParser]: Found 1 translation units. [2021-05-01 06:53:30,879 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/sum_array-2.i [2021-05-01 06:53:30,892 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99e60bbeb/f9258223f3aa4427a73ece70a5a0cc37/FLAGe6e71168c [2021-05-01 06:53:31,356 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99e60bbeb/f9258223f3aa4427a73ece70a5a0cc37 [2021-05-01 06:53:31,360 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-01 06:53:31,364 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-05-01 06:53:31,368 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-01 06:53:31,368 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-01 06:53:31,373 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-01 06:53:31,374 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 06:53:31" (1/1) ... [2021-05-01 06:53:31,376 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7420dc88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 06:53:31, skipping insertion in model container [2021-05-01 06:53:31,377 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 06:53:31" (1/1) ... [2021-05-01 06:53:31,386 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-01 06:53:31,407 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-01 06:53:31,612 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/sum_array-2.i[938,951] [2021-05-01 06:53:31,634 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-01 06:53:31,645 INFO L203 MainTranslator]: Completed pre-run [2021-05-01 06:53:31,683 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/sum_array-2.i[938,951] [2021-05-01 06:53:31,709 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-01 06:53:31,725 INFO L208 MainTranslator]: Completed translation [2021-05-01 06:53:31,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 06:53:31 WrapperNode [2021-05-01 06:53:31,726 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-01 06:53:31,727 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-01 06:53:31,727 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-01 06:53:31,727 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-01 06:53:31,738 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 06:53:31" (1/1) ... [2021-05-01 06:53:31,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 06:53:31" (1/1) ... [2021-05-01 06:53:31,745 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 06:53:31" (1/1) ... [2021-05-01 06:53:31,745 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 06:53:31" (1/1) ... [2021-05-01 06:53:31,754 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 06:53:31" (1/1) ... [2021-05-01 06:53:31,760 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 06:53:31" (1/1) ... [2021-05-01 06:53:31,762 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 06:53:31" (1/1) ... [2021-05-01 06:53:31,770 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-01 06:53:31,772 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-01 06:53:31,772 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-01 06:53:31,772 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-01 06:53:31,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 06:53:31" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-01 06:53:31,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-01 06:53:31,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-01 06:53:31,888 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-01 06:53:31,888 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-05-01 06:53:31,888 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-01 06:53:31,888 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-01 06:53:31,888 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-01 06:53:31,888 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-01 06:53:31,888 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-05-01 06:53:31,890 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-05-01 06:53:31,890 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-01 06:53:31,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-01 06:53:31,890 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-05-01 06:53:31,891 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-05-01 06:53:31,891 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-01 06:53:31,891 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2021-05-01 06:53:31,891 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-01 06:53:31,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-01 06:53:31,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-01 06:53:31,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-01 06:53:31,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-01 06:53:31,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-01 06:53:31,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-01 06:53:32,360 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-01 06:53:32,361 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-05-01 06:53:32,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 06:53:32 BoogieIcfgContainer [2021-05-01 06:53:32,363 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-01 06:53:32,382 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-01 06:53:32,382 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-01 06:53:32,386 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-01 06:53:32,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.05 06:53:31" (1/3) ... [2021-05-01 06:53:32,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75d022e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 06:53:32, skipping insertion in model container [2021-05-01 06:53:32,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 06:53:31" (2/3) ... [2021-05-01 06:53:32,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75d022e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 06:53:32, skipping insertion in model container [2021-05-01 06:53:32,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 06:53:32" (3/3) ... [2021-05-01 06:53:32,390 INFO L111 eAbstractionObserver]: Analyzing ICFG sum_array-2.i [2021-05-01 06:53:32,397 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-05-01 06:53:32,402 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-01 06:53:32,422 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-01 06:53:32,468 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-01 06:53:32,468 INFO L377 AbstractCegarLoop]: Hoare is true [2021-05-01 06:53:32,469 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-05-01 06:53:32,469 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-01 06:53:32,469 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-01 06:53:32,469 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-01 06:53:32,469 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-01 06:53:32,469 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-01 06:53:32,518 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 24 states have (on average 1.5) internal successors, (36), 25 states have internal predecessors, (36), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-05-01 06:53:32,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-05-01 06:53:32,538 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:53:32,540 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:53:32,540 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:53:32,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:53:32,547 INFO L82 PathProgramCache]: Analyzing trace with hash -1611689087, now seen corresponding path program 1 times [2021-05-01 06:53:32,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:53:32,563 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1484492376] [2021-05-01 06:53:32,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:53:32,653 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:53:32,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:53:32,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:32,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:53:32,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:32,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:53:32,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:53:32,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:53:32,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:32,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:53:32,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:53:32,964 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:53:32,965 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1484492376] [2021-05-01 06:53:32,967 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1484492376] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:53:32,968 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:53:32,968 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-01 06:53:32,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379895802] [2021-05-01 06:53:32,975 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-01 06:53:32,976 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:53:32,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-01 06:53:32,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-01 06:53:32,999 INFO L87 Difference]: Start difference. First operand has 32 states, 24 states have (on average 1.5) internal successors, (36), 25 states have internal predecessors, (36), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:53:33,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:53:33,215 INFO L93 Difference]: Finished difference Result 55 states and 73 transitions. [2021-05-01 06:53:33,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-01 06:53:33,218 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2021-05-01 06:53:33,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:53:33,242 INFO L225 Difference]: With dead ends: 55 [2021-05-01 06:53:33,242 INFO L226 Difference]: Without dead ends: 27 [2021-05-01 06:53:33,250 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 65.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-01 06:53:33,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-05-01 06:53:33,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-05-01 06:53:33,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 21 states have internal predecessors, (25), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:53:33,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2021-05-01 06:53:33,307 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 17 [2021-05-01 06:53:33,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:53:33,308 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2021-05-01 06:53:33,308 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:53:33,308 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2021-05-01 06:53:33,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-05-01 06:53:33,309 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:53:33,309 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:53:33,310 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-01 06:53:33,310 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:53:33,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:53:33,311 INFO L82 PathProgramCache]: Analyzing trace with hash -717013641, now seen corresponding path program 1 times [2021-05-01 06:53:33,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:53:33,312 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [336146848] [2021-05-01 06:53:33,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:53:33,316 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:53:33,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:53:33,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:33,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:53:33,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:33,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 06:53:33,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:33,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:53:33,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:33,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:53:33,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:53:33,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:53:33,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:33,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:53:33,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:53:33,602 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:53:33,602 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [336146848] [2021-05-01 06:53:33,602 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [336146848] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:53:33,602 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:53:33,603 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-01 06:53:33,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36886149] [2021-05-01 06:53:33,604 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-01 06:53:33,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:53:33,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-01 06:53:33,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-05-01 06:53:33,606 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:53:33,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:53:33,899 INFO L93 Difference]: Finished difference Result 62 states and 73 transitions. [2021-05-01 06:53:33,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-01 06:53:33,900 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2021-05-01 06:53:33,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:53:33,904 INFO L225 Difference]: With dead ends: 62 [2021-05-01 06:53:33,904 INFO L226 Difference]: Without dead ends: 39 [2021-05-01 06:53:33,905 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 66.1ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-05-01 06:53:33,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-05-01 06:53:33,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 30. [2021-05-01 06:53:33,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 24 states have internal predecessors, (28), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:53:33,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2021-05-01 06:53:33,918 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 17 [2021-05-01 06:53:33,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:53:33,918 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2021-05-01 06:53:33,918 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:53:33,918 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2021-05-01 06:53:33,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-05-01 06:53:33,919 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:53:33,919 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:53:33,920 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-01 06:53:33,920 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:53:33,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:53:33,921 INFO L82 PathProgramCache]: Analyzing trace with hash -442514949, now seen corresponding path program 1 times [2021-05-01 06:53:33,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:53:33,921 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [291036539] [2021-05-01 06:53:33,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:53:33,945 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:53:33,948 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:53:34,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:53:34,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:34,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:53:34,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:34,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-05-01 06:53:34,457 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.2 percent of original size [2021-05-01 06:53:34,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 06:53:34,528 INFO L142 QuantifierPusher]: treesize reduction 9, result has 77.5 percent of original size [2021-05-01 06:53:34,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-01 06:53:34,590 INFO L142 QuantifierPusher]: treesize reduction 6, result has 96.8 percent of original size [2021-05-01 06:53:34,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 181 [2021-05-01 06:53:34,736 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 34 [2021-05-01 06:53:34,771 INFO L142 QuantifierPusher]: treesize reduction 35, result has 91.2 percent of original size [2021-05-01 06:53:34,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 361 [2021-05-01 06:53:34,868 INFO L142 QuantifierPusher]: treesize reduction 10, result has 75.6 percent of original size [2021-05-01 06:53:34,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-01 06:53:34,938 INFO L142 QuantifierPusher]: treesize reduction 30, result has 95.5 percent of original size [2021-05-01 06:53:34,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 631 [2021-05-01 06:53:35,057 INFO L142 QuantifierPusher]: treesize reduction 126, result has 86.1 percent of original size [2021-05-01 06:53:35,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 782 [2021-05-01 06:53:35,317 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 34 [2021-05-01 06:53:35,322 INFO L142 QuantifierPusher]: treesize reduction 28, result has 63.6 percent of original size [2021-05-01 06:53:35,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 06:53:35,444 INFO L142 QuantifierPusher]: treesize reduction 48, result has 91.7 percent of original size [2021-05-01 06:53:35,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 527 [2021-05-01 06:53:35,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:35,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:53:35,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:35,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:53:35,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:35,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:53:35,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:35,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:53:35,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:53:35,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:53:35,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:35,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:53:35,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:53:35,606 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:53:35,606 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [291036539] [2021-05-01 06:53:35,607 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [291036539] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:53:35,608 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:53:35,608 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-05-01 06:53:35,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388864603] [2021-05-01 06:53:35,610 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-05-01 06:53:35,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:53:35,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-05-01 06:53:35,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-05-01 06:53:35,614 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand has 14 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 12 states have internal predecessors, (21), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:53:36,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:53:36,408 INFO L93 Difference]: Finished difference Result 72 states and 82 transitions. [2021-05-01 06:53:36,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-05-01 06:53:36,410 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 12 states have internal predecessors, (21), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2021-05-01 06:53:36,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:53:36,414 INFO L225 Difference]: With dead ends: 72 [2021-05-01 06:53:36,415 INFO L226 Difference]: Without dead ends: 55 [2021-05-01 06:53:36,418 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 1045.6ms TimeCoverageRelationStatistics Valid=144, Invalid=506, Unknown=0, NotChecked=0, Total=650 [2021-05-01 06:53:36,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-05-01 06:53:36,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 44. [2021-05-01 06:53:36,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 36 states have (on average 1.1111111111111112) internal successors, (40), 37 states have internal predecessors, (40), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-05-01 06:53:36,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 47 transitions. [2021-05-01 06:53:36,445 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 47 transitions. Word has length 25 [2021-05-01 06:53:36,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:53:36,445 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 47 transitions. [2021-05-01 06:53:36,446 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 12 states have internal predecessors, (21), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:53:36,446 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 47 transitions. [2021-05-01 06:53:36,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-05-01 06:53:36,448 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:53:36,448 INFO L519 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:53:36,448 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-01 06:53:36,449 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:53:36,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:53:36,450 INFO L82 PathProgramCache]: Analyzing trace with hash 479826701, now seen corresponding path program 1 times [2021-05-01 06:53:36,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:53:36,450 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1104001468] [2021-05-01 06:53:36,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:53:36,467 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:53:36,472 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:53:36,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:53:37,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:37,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:53:37,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:37,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-05-01 06:53:37,067 INFO L142 QuantifierPusher]: treesize reduction 29, result has 73.4 percent of original size [2021-05-01 06:53:37,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-05-01 06:53:37,133 INFO L142 QuantifierPusher]: treesize reduction 123, result has 35.3 percent of original size [2021-05-01 06:53:37,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-05-01 06:53:37,181 INFO L142 QuantifierPusher]: treesize reduction 10, result has 88.0 percent of original size [2021-05-01 06:53:37,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-05-01 06:53:37,238 INFO L142 QuantifierPusher]: treesize reduction 9, result has 87.3 percent of original size [2021-05-01 06:53:37,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-05-01 06:53:37,305 INFO L142 QuantifierPusher]: treesize reduction 9, result has 87.3 percent of original size [2021-05-01 06:53:37,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-05-01 06:53:37,311 INFO L142 QuantifierPusher]: treesize reduction 9, result has 87.3 percent of original size [2021-05-01 06:53:37,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-05-01 06:53:37,316 INFO L142 QuantifierPusher]: treesize reduction 9, result has 87.8 percent of original size [2021-05-01 06:53:37,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-05-01 06:53:37,369 INFO L142 QuantifierPusher]: treesize reduction 9, result has 87.8 percent of original size [2021-05-01 06:53:37,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-05-01 06:53:37,474 INFO L142 QuantifierPusher]: treesize reduction 32, result has 95.7 percent of original size [2021-05-01 06:53:37,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 711 [2021-05-01 06:53:37,807 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 51 [2021-05-01 06:53:37,902 INFO L142 QuantifierPusher]: treesize reduction 85, result has 83.7 percent of original size [2021-05-01 06:53:37,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 437 [2021-05-01 06:53:38,132 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 61 [2021-05-01 06:53:38,143 INFO L142 QuantifierPusher]: treesize reduction 33, result has 78.0 percent of original size [2021-05-01 06:53:38,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-05-01 06:53:38,237 INFO L142 QuantifierPusher]: treesize reduction 33, result has 78.4 percent of original size [2021-05-01 06:53:38,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 120 [2021-05-01 06:53:38,355 INFO L142 QuantifierPusher]: treesize reduction 9, result has 98.2 percent of original size [2021-05-01 06:53:38,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 505 [2021-05-01 06:53:38,622 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 70 [2021-05-01 06:53:38,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:38,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:53:38,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:38,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:53:38,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:38,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:53:38,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:38,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:53:38,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:53:38,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:53:38,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:38,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:53:38,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-05-01 06:53:38,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:53:38,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:38,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:53:38,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:53:38,766 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:53:38,766 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1104001468] [2021-05-01 06:53:38,766 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1104001468] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:53:38,766 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:53:38,767 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-05-01 06:53:38,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481717995] [2021-05-01 06:53:38,768 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-05-01 06:53:38,768 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:53:38,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-05-01 06:53:38,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2021-05-01 06:53:38,770 INFO L87 Difference]: Start difference. First operand 44 states and 47 transitions. Second operand has 17 states, 16 states have (on average 2.0) internal successors, (32), 15 states have internal predecessors, (32), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:53:39,684 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 65 [2021-05-01 06:53:39,896 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 70 [2021-05-01 06:53:40,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:53:40,125 INFO L93 Difference]: Finished difference Result 87 states and 95 transitions. [2021-05-01 06:53:40,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-05-01 06:53:40,126 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 15 states have internal predecessors, (32), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 41 [2021-05-01 06:53:40,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:53:40,131 INFO L225 Difference]: With dead ends: 87 [2021-05-01 06:53:40,132 INFO L226 Difference]: Without dead ends: 85 [2021-05-01 06:53:40,133 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 2004.6ms TimeCoverageRelationStatistics Valid=103, Invalid=497, Unknown=0, NotChecked=0, Total=600 [2021-05-01 06:53:40,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-05-01 06:53:40,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 72. [2021-05-01 06:53:40,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 61 states have (on average 1.1147540983606556) internal successors, (68), 63 states have internal predecessors, (68), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) [2021-05-01 06:53:40,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 79 transitions. [2021-05-01 06:53:40,179 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 79 transitions. Word has length 41 [2021-05-01 06:53:40,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:53:40,179 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 79 transitions. [2021-05-01 06:53:40,179 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 15 states have internal predecessors, (32), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:53:40,180 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 79 transitions. [2021-05-01 06:53:40,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-05-01 06:53:40,185 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:53:40,185 INFO L519 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:53:40,186 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-05-01 06:53:40,186 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:53:40,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:53:40,186 INFO L82 PathProgramCache]: Analyzing trace with hash 56579942, now seen corresponding path program 2 times [2021-05-01 06:53:40,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:53:40,188 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1699787436] [2021-05-01 06:53:40,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:53:40,198 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:53:40,200 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:53:40,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:53:40,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:40,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:53:40,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:40,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 06:53:40,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:40,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:53:40,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:40,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:53:40,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:40,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-01 06:53:40,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:40,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 06:53:40,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:40,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 06:53:40,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:40,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 06:53:40,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:40,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-05-01 06:53:40,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:40,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:53:40,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:53:40,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:53:40,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:40,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:53:40,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-05-01 06:53:40,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:53:40,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:40,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:53:40,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:53:40,450 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:53:40,450 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1699787436] [2021-05-01 06:53:40,450 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1699787436] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:53:40,450 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:53:40,451 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-05-01 06:53:40,451 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103195192] [2021-05-01 06:53:40,451 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-01 06:53:40,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:53:40,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-01 06:53:40,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-05-01 06:53:40,453 INFO L87 Difference]: Start difference. First operand 72 states and 79 transitions. Second operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 10 states have internal predecessors, (35), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:53:41,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:53:41,099 INFO L93 Difference]: Finished difference Result 150 states and 168 transitions. [2021-05-01 06:53:41,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-01 06:53:41,101 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 10 states have internal predecessors, (35), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2021-05-01 06:53:41,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:53:41,104 INFO L225 Difference]: With dead ends: 150 [2021-05-01 06:53:41,104 INFO L226 Difference]: Without dead ends: 116 [2021-05-01 06:53:41,105 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 187.5ms TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2021-05-01 06:53:41,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-05-01 06:53:41,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 83. [2021-05-01 06:53:41,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 72 states have (on average 1.1111111111111112) internal successors, (80), 74 states have internal predecessors, (80), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) [2021-05-01 06:53:41,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 91 transitions. [2021-05-01 06:53:41,147 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 91 transitions. Word has length 44 [2021-05-01 06:53:41,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:53:41,147 INFO L480 AbstractCegarLoop]: Abstraction has 83 states and 91 transitions. [2021-05-01 06:53:41,147 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 10 states have internal predecessors, (35), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:53:41,147 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 91 transitions. [2021-05-01 06:53:41,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-05-01 06:53:41,155 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:53:41,155 INFO L519 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:53:41,155 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-05-01 06:53:41,155 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:53:41,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:53:41,156 INFO L82 PathProgramCache]: Analyzing trace with hash -1936282649, now seen corresponding path program 3 times [2021-05-01 06:53:41,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:53:41,162 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1354570760] [2021-05-01 06:53:41,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:53:41,174 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:53:41,176 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:53:41,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:53:41,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:41,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:53:41,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:41,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 06:53:41,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:41,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:53:41,290 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-05-01 06:53:41,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 06:53:41,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:41,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 06:53:41,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:41,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 06:53:41,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:41,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 06:53:41,353 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.2 percent of original size [2021-05-01 06:53:41,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-05-01 06:53:41,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:41,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:53:41,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:53:41,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:53:41,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:41,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:53:41,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-05-01 06:53:41,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:53:41,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:41,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:53:41,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-01 06:53:41,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:53:41,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:41,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:53:41,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:53:41,443 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:53:41,443 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1354570760] [2021-05-01 06:53:41,443 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1354570760] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:53:41,444 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:53:41,444 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-05-01 06:53:41,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130380220] [2021-05-01 06:53:41,444 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-05-01 06:53:41,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:53:41,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-05-01 06:53:41,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-05-01 06:53:41,446 INFO L87 Difference]: Start difference. First operand 83 states and 91 transitions. Second operand has 10 states, 10 states have (on average 3.3) internal successors, (33), 9 states have internal predecessors, (33), 4 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-05-01 06:53:41,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:53:41,779 INFO L93 Difference]: Finished difference Result 131 states and 142 transitions. [2021-05-01 06:53:41,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-01 06:53:41,781 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.3) internal successors, (33), 9 states have internal predecessors, (33), 4 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 49 [2021-05-01 06:53:41,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:53:41,782 INFO L225 Difference]: With dead ends: 131 [2021-05-01 06:53:41,782 INFO L226 Difference]: Without dead ends: 67 [2021-05-01 06:53:41,783 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 136.3ms TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-05-01 06:53:41,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2021-05-01 06:53:41,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 52. [2021-05-01 06:53:41,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 44 states have (on average 1.0909090909090908) internal successors, (48), 45 states have internal predecessors, (48), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-05-01 06:53:41,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 55 transitions. [2021-05-01 06:53:41,794 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 55 transitions. Word has length 49 [2021-05-01 06:53:41,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:53:41,795 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 55 transitions. [2021-05-01 06:53:41,795 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 3.3) internal successors, (33), 9 states have internal predecessors, (33), 4 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-05-01 06:53:41,795 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 55 transitions. [2021-05-01 06:53:41,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-05-01 06:53:41,796 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:53:41,796 INFO L519 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:53:41,796 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-05-01 06:53:41,796 INFO L428 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:53:41,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:53:41,797 INFO L82 PathProgramCache]: Analyzing trace with hash 22537489, now seen corresponding path program 4 times [2021-05-01 06:53:41,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:53:41,797 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2086627927] [2021-05-01 06:53:41,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:53:41,805 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:53:41,807 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:53:41,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:53:42,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:42,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:53:42,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:42,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-05-01 06:53:42,215 INFO L142 QuantifierPusher]: treesize reduction 39, result has 64.5 percent of original size [2021-05-01 06:53:42,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-05-01 06:53:42,284 INFO L142 QuantifierPusher]: treesize reduction 102, result has 36.3 percent of original size [2021-05-01 06:53:42,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 06:53:42,331 INFO L142 QuantifierPusher]: treesize reduction 13, result has 74.0 percent of original size [2021-05-01 06:53:42,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-05-01 06:53:42,379 INFO L142 QuantifierPusher]: treesize reduction 14, result has 79.4 percent of original size [2021-05-01 06:53:42,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 06:53:42,436 INFO L142 QuantifierPusher]: treesize reduction 28, result has 52.5 percent of original size [2021-05-01 06:53:42,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-01 06:53:42,471 INFO L142 QuantifierPusher]: treesize reduction 28, result has 54.8 percent of original size [2021-05-01 06:53:42,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-05-01 06:53:42,508 INFO L142 QuantifierPusher]: treesize reduction 57, result has 78.3 percent of original size [2021-05-01 06:53:42,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 206 [2021-05-01 06:53:42,625 INFO L142 QuantifierPusher]: treesize reduction 69, result has 65.2 percent of original size [2021-05-01 06:53:42,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 129 [2021-05-01 06:53:42,716 INFO L142 QuantifierPusher]: treesize reduction 42, result has 80.6 percent of original size [2021-05-01 06:53:42,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 174 [2021-05-01 06:53:42,798 INFO L142 QuantifierPusher]: treesize reduction 77, result has 35.8 percent of original size [2021-05-01 06:53:42,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-05-01 06:53:42,816 INFO L142 QuantifierPusher]: treesize reduction 37, result has 53.8 percent of original size [2021-05-01 06:53:42,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-05-01 06:53:42,836 INFO L142 QuantifierPusher]: treesize reduction 37, result has 55.4 percent of original size [2021-05-01 06:53:42,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-05-01 06:53:42,852 INFO L142 QuantifierPusher]: treesize reduction 37, result has 55.4 percent of original size [2021-05-01 06:53:42,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-05-01 06:53:42,928 INFO L142 QuantifierPusher]: treesize reduction 33, result has 95.4 percent of original size [2021-05-01 06:53:43,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 689 [2021-05-01 06:53:43,186 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 50 [2021-05-01 06:53:43,230 INFO L142 QuantifierPusher]: treesize reduction 92, result has 82.0 percent of original size [2021-05-01 06:53:43,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 420 [2021-05-01 06:53:43,412 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 54 [2021-05-01 06:53:43,424 INFO L142 QuantifierPusher]: treesize reduction 55, result has 83.9 percent of original size [2021-05-01 06:53:43,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 286 [2021-05-01 06:53:43,581 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 48 [2021-05-01 06:53:43,586 INFO L142 QuantifierPusher]: treesize reduction 91, result has 45.8 percent of original size [2021-05-01 06:53:43,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-05-01 06:53:43,658 INFO L142 QuantifierPusher]: treesize reduction 51, result has 60.2 percent of original size [2021-05-01 06:53:43,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-05-01 06:53:43,664 INFO L142 QuantifierPusher]: treesize reduction 51, result has 61.1 percent of original size [2021-05-01 06:53:43,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-05-01 06:53:43,749 INFO L142 QuantifierPusher]: treesize reduction 51, result has 63.3 percent of original size [2021-05-01 06:53:43,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 88 [2021-05-01 06:53:43,834 INFO L142 QuantifierPusher]: treesize reduction 51, result has 61.1 percent of original size [2021-05-01 06:53:43,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-05-01 06:53:43,842 INFO L142 QuantifierPusher]: treesize reduction 67, result has 80.5 percent of original size [2021-05-01 06:53:43,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 276 [2021-05-01 06:53:44,022 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 66 [2021-05-01 06:53:44,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:44,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:53:44,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:44,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:53:44,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:44,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:53:44,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:44,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:53:44,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:53:44,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:53:44,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:44,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:53:44,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-01 06:53:44,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:53:44,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:44,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 06:53:44,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:44,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:53:44,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:53:44,161 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:53:44,161 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2086627927] [2021-05-01 06:53:44,161 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [2086627927] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:53:44,161 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:53:44,161 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-05-01 06:53:44,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494336494] [2021-05-01 06:53:44,162 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-05-01 06:53:44,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:53:44,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-05-01 06:53:44,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=468, Unknown=0, NotChecked=0, Total=552 [2021-05-01 06:53:44,164 INFO L87 Difference]: Start difference. First operand 52 states and 55 transitions. Second operand has 24 states, 22 states have (on average 1.9545454545454546) internal successors, (43), 23 states have internal predecessors, (43), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:53:44,926 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 52 [2021-05-01 06:53:45,206 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 60 [2021-05-01 06:53:45,396 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 70 [2021-05-01 06:53:46,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:53:46,055 INFO L93 Difference]: Finished difference Result 111 states and 124 transitions. [2021-05-01 06:53:46,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-05-01 06:53:46,055 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 22 states have (on average 1.9545454545454546) internal successors, (43), 23 states have internal predecessors, (43), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 49 [2021-05-01 06:53:46,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:53:46,057 INFO L225 Difference]: With dead ends: 111 [2021-05-01 06:53:46,057 INFO L226 Difference]: Without dead ends: 109 [2021-05-01 06:53:46,058 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 7 SyntacticMatches, 4 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 2664.5ms TimeCoverageRelationStatistics Valid=259, Invalid=1381, Unknown=0, NotChecked=0, Total=1640 [2021-05-01 06:53:46,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-05-01 06:53:46,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 83. [2021-05-01 06:53:46,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 73 states have (on average 1.095890410958904) internal successors, (80), 74 states have internal predecessors, (80), 6 states have call successors, (6), 5 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) [2021-05-01 06:53:46,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 91 transitions. [2021-05-01 06:53:46,075 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 91 transitions. Word has length 49 [2021-05-01 06:53:46,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:53:46,076 INFO L480 AbstractCegarLoop]: Abstraction has 83 states and 91 transitions. [2021-05-01 06:53:46,076 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 22 states have (on average 1.9545454545454546) internal successors, (43), 23 states have internal predecessors, (43), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:53:46,076 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 91 transitions. [2021-05-01 06:53:46,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-05-01 06:53:46,077 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:53:46,077 INFO L519 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:53:46,077 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-05-01 06:53:46,078 INFO L428 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:53:46,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:53:46,078 INFO L82 PathProgramCache]: Analyzing trace with hash 1139032170, now seen corresponding path program 5 times [2021-05-01 06:53:46,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:53:46,078 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1936532866] [2021-05-01 06:53:46,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:53:46,087 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:53:46,089 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:53:46,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:53:46,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:46,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:53:46,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:46,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 06:53:46,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:46,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:53:46,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:46,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:53:46,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:46,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:53:46,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:46,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-01 06:53:46,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:46,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 06:53:46,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:46,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 06:53:46,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:46,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 06:53:46,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:46,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 06:53:46,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:46,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-05-01 06:53:46,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:46,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:53:46,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:53:46,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:53:46,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:46,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:53:46,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-05-01 06:53:46,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:53:46,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:46,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:53:46,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:53:46,344 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:53:46,345 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1936532866] [2021-05-01 06:53:46,345 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1936532866] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:53:46,345 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:53:46,345 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-05-01 06:53:46,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022283189] [2021-05-01 06:53:46,345 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-05-01 06:53:46,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:53:46,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-05-01 06:53:46,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-05-01 06:53:46,346 INFO L87 Difference]: Start difference. First operand 83 states and 91 transitions. Second operand has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 12 states have internal predecessors, (41), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:53:47,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:53:47,250 INFO L93 Difference]: Finished difference Result 171 states and 193 transitions. [2021-05-01 06:53:47,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-05-01 06:53:47,251 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 12 states have internal predecessors, (41), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 52 [2021-05-01 06:53:47,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:53:47,252 INFO L225 Difference]: With dead ends: 171 [2021-05-01 06:53:47,252 INFO L226 Difference]: Without dead ends: 137 [2021-05-01 06:53:47,253 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 287.4ms TimeCoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2021-05-01 06:53:47,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-05-01 06:53:47,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 94. [2021-05-01 06:53:47,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 84 states have (on average 1.0952380952380953) internal successors, (92), 85 states have internal predecessors, (92), 6 states have call successors, (6), 5 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) [2021-05-01 06:53:47,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 103 transitions. [2021-05-01 06:53:47,274 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 103 transitions. Word has length 52 [2021-05-01 06:53:47,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:53:47,274 INFO L480 AbstractCegarLoop]: Abstraction has 94 states and 103 transitions. [2021-05-01 06:53:47,275 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 12 states have internal predecessors, (41), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:53:47,275 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 103 transitions. [2021-05-01 06:53:47,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-05-01 06:53:47,276 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:53:47,276 INFO L519 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:53:47,276 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-05-01 06:53:47,276 INFO L428 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:53:47,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:53:47,277 INFO L82 PathProgramCache]: Analyzing trace with hash 267696619, now seen corresponding path program 6 times [2021-05-01 06:53:47,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:53:47,277 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [699250037] [2021-05-01 06:53:47,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:53:47,286 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:53:47,288 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:53:47,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:53:47,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:47,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:53:47,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:47,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-05-01 06:53:47,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:47,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:53:47,602 INFO L142 QuantifierPusher]: treesize reduction 23, result has 75.5 percent of original size [2021-05-01 06:53:47,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-05-01 06:53:47,665 INFO L142 QuantifierPusher]: treesize reduction 35, result has 73.5 percent of original size [2021-05-01 06:53:47,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-05-01 06:53:47,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:47,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-01 06:53:47,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:47,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-05-01 06:53:47,775 INFO L142 QuantifierPusher]: treesize reduction 5, result has 90.7 percent of original size [2021-05-01 06:53:47,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 06:53:47,797 INFO L142 QuantifierPusher]: treesize reduction 20, result has 95.8 percent of original size [2021-05-01 06:53:47,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 456 [2021-05-01 06:53:47,883 INFO L142 QuantifierPusher]: treesize reduction 56, result has 86.0 percent of original size [2021-05-01 06:53:47,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 343 [2021-05-01 06:53:48,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:48,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-05-01 06:53:48,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:48,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-05-01 06:53:48,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:48,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-05-01 06:53:48,173 INFO L142 QuantifierPusher]: treesize reduction 9, result has 98.0 percent of original size [2021-05-01 06:53:48,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 435 [2021-05-01 06:53:48,322 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 47 [2021-05-01 06:53:48,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:48,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:53:48,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:48,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:53:48,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:48,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:53:48,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:48,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:53:48,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:53:48,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:53:48,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:48,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:53:48,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-01 06:53:48,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:53:48,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:48,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:53:48,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-05-01 06:53:48,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:53:48,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:48,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:53:48,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:53:48,451 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:53:48,451 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [699250037] [2021-05-01 06:53:48,451 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [699250037] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:53:48,451 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:53:48,451 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-05-01 06:53:48,451 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102600441] [2021-05-01 06:53:48,452 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-05-01 06:53:48,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:53:48,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-05-01 06:53:48,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2021-05-01 06:53:48,453 INFO L87 Difference]: Start difference. First operand 94 states and 103 transitions. Second operand has 16 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 14 states have internal predecessors, (40), 4 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-05-01 06:53:49,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:53:49,331 INFO L93 Difference]: Finished difference Result 116 states and 126 transitions. [2021-05-01 06:53:49,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-01 06:53:49,332 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 14 states have internal predecessors, (40), 4 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 57 [2021-05-01 06:53:49,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:53:49,334 INFO L225 Difference]: With dead ends: 116 [2021-05-01 06:53:49,334 INFO L226 Difference]: Without dead ends: 114 [2021-05-01 06:53:49,335 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 1119.8ms TimeCoverageRelationStatistics Valid=99, Invalid=551, Unknown=0, NotChecked=0, Total=650 [2021-05-01 06:53:49,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2021-05-01 06:53:49,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 106. [2021-05-01 06:53:49,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 93 states have (on average 1.086021505376344) internal successors, (101), 94 states have internal predecessors, (101), 8 states have call successors, (8), 6 states have call predecessors, (8), 4 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2021-05-01 06:53:49,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 116 transitions. [2021-05-01 06:53:49,360 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 116 transitions. Word has length 57 [2021-05-01 06:53:49,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:53:49,361 INFO L480 AbstractCegarLoop]: Abstraction has 106 states and 116 transitions. [2021-05-01 06:53:49,361 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 14 states have internal predecessors, (40), 4 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-05-01 06:53:49,361 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 116 transitions. [2021-05-01 06:53:49,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-05-01 06:53:49,362 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:53:49,362 INFO L519 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:53:49,363 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-05-01 06:53:49,363 INFO L428 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:53:49,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:53:49,364 INFO L82 PathProgramCache]: Analyzing trace with hash 1027853257, now seen corresponding path program 7 times [2021-05-01 06:53:49,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:53:49,364 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [639440910] [2021-05-01 06:53:49,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:53:49,372 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:53:49,374 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:53:49,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:53:49,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:49,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:53:49,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:49,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-05-01 06:53:49,739 INFO L142 QuantifierPusher]: treesize reduction 13, result has 85.4 percent of original size [2021-05-01 06:53:49,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-05-01 06:53:49,781 INFO L142 QuantifierPusher]: treesize reduction 88, result has 51.1 percent of original size [2021-05-01 06:53:49,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-05-01 06:53:49,900 INFO L142 QuantifierPusher]: treesize reduction 239, result has 61.2 percent of original size [2021-05-01 06:53:49,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 377 [2021-05-01 06:53:50,088 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 42 [2021-05-01 06:53:50,115 INFO L142 QuantifierPusher]: treesize reduction 210, result has 55.1 percent of original size [2021-05-01 06:53:50,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 258 [2021-05-01 06:53:50,176 INFO L142 QuantifierPusher]: treesize reduction 341, result has 55.5 percent of original size [2021-05-01 06:53:50,198 INFO L147 QuantifierPusher]: treesize reduction 38, result has 91.1 percent of original size 387 [2021-05-01 06:53:50,338 INFO L142 QuantifierPusher]: treesize reduction 434, result has 39.8 percent of original size [2021-05-01 06:53:50,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 287 [2021-05-01 06:53:50,382 INFO L142 QuantifierPusher]: treesize reduction 230, result has 49.8 percent of original size [2021-05-01 06:53:50,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-05-01 06:53:50,514 INFO L142 QuantifierPusher]: treesize reduction 68, result has 52.1 percent of original size [2021-05-01 06:53:50,516 INFO L147 QuantifierPusher]: treesize reduction 9, result has 87.8 percent of original size 65 [2021-05-01 06:53:50,567 INFO L142 QuantifierPusher]: treesize reduction 68, result has 53.1 percent of original size [2021-05-01 06:53:50,569 INFO L147 QuantifierPusher]: treesize reduction 9, result has 88.3 percent of original size 68 [2021-05-01 06:53:50,623 INFO L142 QuantifierPusher]: treesize reduction 68, result has 53.1 percent of original size [2021-05-01 06:53:50,625 INFO L147 QuantifierPusher]: treesize reduction 9, result has 88.3 percent of original size 68 [2021-05-01 06:53:50,644 INFO L142 QuantifierPusher]: treesize reduction 127, result has 68.6 percent of original size [2021-05-01 06:53:50,656 INFO L147 QuantifierPusher]: treesize reduction 9, result has 96.8 percent of original size 269 [2021-05-01 06:53:50,795 INFO L142 QuantifierPusher]: treesize reduction 116, result has 65.0 percent of original size [2021-05-01 06:53:50,804 INFO L147 QuantifierPusher]: treesize reduction 9, result has 95.8 percent of original size 206 [2021-05-01 06:53:50,940 INFO L142 QuantifierPusher]: treesize reduction 96, result has 69.4 percent of original size [2021-05-01 06:53:50,952 INFO L147 QuantifierPusher]: treesize reduction 9, result has 95.9 percent of original size 209 [2021-05-01 06:53:51,103 INFO L142 QuantifierPusher]: treesize reduction 113, result has 48.2 percent of original size [2021-05-01 06:53:51,112 INFO L147 QuantifierPusher]: treesize reduction 9, result has 91.4 percent of original size 96 [2021-05-01 06:53:51,226 INFO L142 QuantifierPusher]: treesize reduction 83, result has 75.2 percent of original size [2021-05-01 06:53:51,237 INFO L147 QuantifierPusher]: treesize reduction 9, result has 96.4 percent of original size 243 [2021-05-01 06:53:51,378 INFO L142 QuantifierPusher]: treesize reduction 89, result has 57.4 percent of original size [2021-05-01 06:53:51,380 INFO L147 QuantifierPusher]: treesize reduction 9, result has 92.5 percent of original size 111 [2021-05-01 06:53:51,471 INFO L142 QuantifierPusher]: treesize reduction 68, result has 55.8 percent of original size [2021-05-01 06:53:51,472 INFO L147 QuantifierPusher]: treesize reduction 9, result has 89.5 percent of original size 77 [2021-05-01 06:53:51,496 INFO L142 QuantifierPusher]: treesize reduction 68, result has 56.7 percent of original size [2021-05-01 06:53:51,498 INFO L147 QuantifierPusher]: treesize reduction 9, result has 89.9 percent of original size 80 [2021-05-01 06:53:51,521 INFO L142 QuantifierPusher]: treesize reduction 68, result has 56.7 percent of original size [2021-05-01 06:53:51,523 INFO L147 QuantifierPusher]: treesize reduction 9, result has 89.9 percent of original size 80 [2021-05-01 06:53:51,587 INFO L142 QuantifierPusher]: treesize reduction 79, result has 91.3 percent of original size [2021-05-01 06:53:51,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 826 [2021-05-01 06:53:51,833 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 55 [2021-05-01 06:53:51,872 INFO L142 QuantifierPusher]: treesize reduction 87, result has 87.1 percent of original size [2021-05-01 06:53:51,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 587 [2021-05-01 06:53:52,097 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 54 [2021-05-01 06:53:52,135 INFO L142 QuantifierPusher]: treesize reduction 63, result has 84.4 percent of original size [2021-05-01 06:53:52,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 342 [2021-05-01 06:53:52,382 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 71 [2021-05-01 06:53:52,392 INFO L142 QuantifierPusher]: treesize reduction 60, result has 70.6 percent of original size [2021-05-01 06:53:52,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 144 [2021-05-01 06:53:52,518 INFO L142 QuantifierPusher]: treesize reduction 69, result has 83.2 percent of original size [2021-05-01 06:53:52,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 342 [2021-05-01 06:53:52,747 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 55 [2021-05-01 06:53:52,753 INFO L142 QuantifierPusher]: treesize reduction 91, result has 57.7 percent of original size [2021-05-01 06:53:52,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-05-01 06:53:52,836 INFO L142 QuantifierPusher]: treesize reduction 68, result has 56.4 percent of original size [2021-05-01 06:53:52,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 88 [2021-05-01 06:53:52,911 INFO L142 QuantifierPusher]: treesize reduction 68, result has 57.2 percent of original size [2021-05-01 06:53:52,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-05-01 06:53:53,019 INFO L142 QuantifierPusher]: treesize reduction 80, result has 86.6 percent of original size [2021-05-01 06:53:53,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 519 [2021-05-01 06:53:53,232 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 68 [2021-05-01 06:53:53,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:53,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:53:53,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:53,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:53:53,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:53,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:53:53,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:53,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:53:53,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:53:53,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:53:53,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:53,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:53:53,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-05-01 06:53:53,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:53:53,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:53,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:53:53,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:53:53,378 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:53:53,379 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [639440910] [2021-05-01 06:53:53,379 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [639440910] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:53:53,379 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:53:53,379 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-05-01 06:53:53,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763275721] [2021-05-01 06:53:53,380 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-05-01 06:53:53,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:53:53,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-05-01 06:53:53,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=710, Unknown=0, NotChecked=0, Total=812 [2021-05-01 06:53:53,381 INFO L87 Difference]: Start difference. First operand 106 states and 116 transitions. Second operand has 29 states, 28 states have (on average 1.8214285714285714) internal successors, (51), 27 states have internal predecessors, (51), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:53:54,826 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 60 [2021-05-01 06:53:55,024 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 71 [2021-05-01 06:53:55,361 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 60 [2021-05-01 06:53:55,776 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 71 [2021-05-01 06:53:56,074 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2021-05-01 06:53:56,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:53:56,726 INFO L93 Difference]: Finished difference Result 194 states and 217 transitions. [2021-05-01 06:53:56,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-05-01 06:53:56,727 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 1.8214285714285714) internal successors, (51), 27 states have internal predecessors, (51), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 57 [2021-05-01 06:53:56,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:53:56,729 INFO L225 Difference]: With dead ends: 194 [2021-05-01 06:53:56,729 INFO L226 Difference]: Without dead ends: 192 [2021-05-01 06:53:56,731 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 6 SyntacticMatches, 5 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 541 ImplicationChecksByTransitivity, 5059.4ms TimeCoverageRelationStatistics Valid=370, Invalid=2080, Unknown=0, NotChecked=0, Total=2450 [2021-05-01 06:53:56,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2021-05-01 06:53:56,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 122. [2021-05-01 06:53:56,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 108 states have (on average 1.0833333333333333) internal successors, (117), 110 states have internal predecessors, (117), 8 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2021-05-01 06:53:56,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 132 transitions. [2021-05-01 06:53:56,761 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 132 transitions. Word has length 57 [2021-05-01 06:53:56,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:53:56,762 INFO L480 AbstractCegarLoop]: Abstraction has 122 states and 132 transitions. [2021-05-01 06:53:56,762 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 29 states, 28 states have (on average 1.8214285714285714) internal successors, (51), 27 states have internal predecessors, (51), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:53:56,762 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 132 transitions. [2021-05-01 06:53:56,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-05-01 06:53:56,763 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:53:56,763 INFO L519 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:53:56,763 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-05-01 06:53:56,763 INFO L428 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:53:56,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:53:56,764 INFO L82 PathProgramCache]: Analyzing trace with hash 319798818, now seen corresponding path program 8 times [2021-05-01 06:53:56,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:53:56,764 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1884795102] [2021-05-01 06:53:56,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:53:56,772 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:53:56,773 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:53:56,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:53:56,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:56,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:53:56,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:56,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 06:53:56,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:56,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:53:56,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:56,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:53:56,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:56,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:53:56,883 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-05-01 06:53:56,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-05-01 06:53:56,902 INFO L142 QuantifierPusher]: treesize reduction 8, result has 83.3 percent of original size [2021-05-01 06:53:56,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-05-01 06:53:56,926 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.5 percent of original size [2021-05-01 06:53:56,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-05-01 06:53:56,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:56,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 06:53:56,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:56,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 06:53:57,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:57,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-05-01 06:53:57,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:57,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-05-01 06:53:57,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:57,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-05-01 06:53:57,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:57,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-05-01 06:53:57,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:57,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:53:57,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:53:57,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:53:57,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:57,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:53:57,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-05-01 06:53:57,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:53:57,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:57,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:53:57,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:53:57,148 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:53:57,148 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1884795102] [2021-05-01 06:53:57,149 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1884795102] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:53:57,149 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:53:57,149 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-05-01 06:53:57,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960413053] [2021-05-01 06:53:57,149 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-05-01 06:53:57,149 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:53:57,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-05-01 06:53:57,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2021-05-01 06:53:57,150 INFO L87 Difference]: Start difference. First operand 122 states and 132 transitions. Second operand has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:53:58,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:53:58,300 INFO L93 Difference]: Finished difference Result 225 states and 249 transitions. [2021-05-01 06:53:58,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-05-01 06:53:58,301 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 60 [2021-05-01 06:53:58,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:53:58,303 INFO L225 Difference]: With dead ends: 225 [2021-05-01 06:53:58,303 INFO L226 Difference]: Without dead ends: 175 [2021-05-01 06:53:58,305 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 433.5ms TimeCoverageRelationStatistics Valid=91, Invalid=461, Unknown=0, NotChecked=0, Total=552 [2021-05-01 06:53:58,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2021-05-01 06:53:58,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 133. [2021-05-01 06:53:58,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 119 states have (on average 1.084033613445378) internal successors, (129), 121 states have internal predecessors, (129), 8 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2021-05-01 06:53:58,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 144 transitions. [2021-05-01 06:53:58,340 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 144 transitions. Word has length 60 [2021-05-01 06:53:58,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:53:58,340 INFO L480 AbstractCegarLoop]: Abstraction has 133 states and 144 transitions. [2021-05-01 06:53:58,341 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:53:58,341 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 144 transitions. [2021-05-01 06:53:58,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-05-01 06:53:58,342 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:53:58,342 INFO L519 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:53:58,342 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-05-01 06:53:58,342 INFO L428 AbstractCegarLoop]: === Iteration 12 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:53:58,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:53:58,343 INFO L82 PathProgramCache]: Analyzing trace with hash -1329326907, now seen corresponding path program 9 times [2021-05-01 06:53:58,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:53:58,343 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [204769167] [2021-05-01 06:53:58,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:53:58,351 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:53:58,354 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:53:58,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:53:58,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:58,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:53:58,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:58,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 06:53:58,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:58,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 06:53:58,489 INFO L142 QuantifierPusher]: treesize reduction 2, result has 95.3 percent of original size [2021-05-01 06:53:58,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-05-01 06:53:58,522 INFO L142 QuantifierPusher]: treesize reduction 15, result has 55.9 percent of original size [2021-05-01 06:53:58,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-05-01 06:53:58,530 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.7 percent of original size [2021-05-01 06:53:58,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-01 06:53:58,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:58,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 06:53:58,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:58,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 06:53:58,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:58,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-05-01 06:53:58,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:58,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-05-01 06:53:58,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:58,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-05-01 06:53:58,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:58,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:53:58,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:53:58,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:53:58,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:58,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:53:58,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-01 06:53:58,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:53:58,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:58,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:53:58,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-05-01 06:53:58,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:53:58,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:58,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:53:58,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-05-01 06:53:58,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:53:58,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:58,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:53:58,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:53:58,689 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:53:58,689 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [204769167] [2021-05-01 06:53:58,689 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [204769167] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:53:58,689 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:53:58,689 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-05-01 06:53:58,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470265062] [2021-05-01 06:53:58,690 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-05-01 06:53:58,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:53:58,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-05-01 06:53:58,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-05-01 06:53:58,691 INFO L87 Difference]: Start difference. First operand 133 states and 144 transitions. Second operand has 12 states, 12 states have (on average 3.25) internal successors, (39), 11 states have internal predecessors, (39), 5 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-05-01 06:53:59,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:53:59,255 INFO L93 Difference]: Finished difference Result 220 states and 239 transitions. [2021-05-01 06:53:59,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-05-01 06:53:59,256 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 11 states have internal predecessors, (39), 5 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 65 [2021-05-01 06:53:59,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:53:59,257 INFO L225 Difference]: With dead ends: 220 [2021-05-01 06:53:59,258 INFO L226 Difference]: Without dead ends: 135 [2021-05-01 06:53:59,261 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 223.0ms TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2021-05-01 06:53:59,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2021-05-01 06:53:59,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 121. [2021-05-01 06:53:59,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 107 states have (on average 1.074766355140187) internal successors, (115), 109 states have internal predecessors, (115), 8 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2021-05-01 06:53:59,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 130 transitions. [2021-05-01 06:53:59,296 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 130 transitions. Word has length 65 [2021-05-01 06:53:59,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:53:59,296 INFO L480 AbstractCegarLoop]: Abstraction has 121 states and 130 transitions. [2021-05-01 06:53:59,296 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 11 states have internal predecessors, (39), 5 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-05-01 06:53:59,296 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 130 transitions. [2021-05-01 06:53:59,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-05-01 06:53:59,297 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:53:59,297 INFO L519 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:53:59,297 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-05-01 06:53:59,298 INFO L428 AbstractCegarLoop]: === Iteration 13 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:53:59,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:53:59,298 INFO L82 PathProgramCache]: Analyzing trace with hash 888115021, now seen corresponding path program 10 times [2021-05-01 06:53:59,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:53:59,298 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2145563978] [2021-05-01 06:53:59,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:53:59,309 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:53:59,315 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:53:59,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:53:59,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:59,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:53:59,684 INFO L142 QuantifierPusher]: treesize reduction 10, result has 79.2 percent of original size [2021-05-01 06:53:59,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-05-01 06:53:59,712 INFO L142 QuantifierPusher]: treesize reduction 32, result has 70.4 percent of original size [2021-05-01 06:53:59,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-05-01 06:53:59,783 INFO L142 QuantifierPusher]: treesize reduction 89, result has 41.4 percent of original size [2021-05-01 06:53:59,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-05-01 06:53:59,834 INFO L142 QuantifierPusher]: treesize reduction 9, result has 82.4 percent of original size [2021-05-01 06:53:59,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-05-01 06:53:59,879 INFO L142 QuantifierPusher]: treesize reduction 9, result has 82.4 percent of original size [2021-05-01 06:53:59,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-05-01 06:53:59,925 INFO L142 QuantifierPusher]: treesize reduction 9, result has 82.4 percent of original size [2021-05-01 06:53:59,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-05-01 06:53:59,973 INFO L142 QuantifierPusher]: treesize reduction 10, result has 85.3 percent of original size [2021-05-01 06:53:59,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 06:54:00,029 INFO L142 QuantifierPusher]: treesize reduction 9, result has 83.3 percent of original size [2021-05-01 06:54:00,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-05-01 06:54:00,074 INFO L142 QuantifierPusher]: treesize reduction 9, result has 84.2 percent of original size [2021-05-01 06:54:00,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-05-01 06:54:00,152 INFO L142 QuantifierPusher]: treesize reduction 23, result has 95.4 percent of original size [2021-05-01 06:54:00,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 480 [2021-05-01 06:54:00,341 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 43 [2021-05-01 06:54:00,363 INFO L142 QuantifierPusher]: treesize reduction 49, result has 88.3 percent of original size [2021-05-01 06:54:00,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 369 [2021-05-01 06:54:00,550 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 51 [2021-05-01 06:54:00,563 INFO L142 QuantifierPusher]: treesize reduction 4, result has 98.8 percent of original size [2021-05-01 06:54:00,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 332 [2021-05-01 06:54:00,719 INFO L142 QuantifierPusher]: treesize reduction 40, result has 75.6 percent of original size [2021-05-01 06:54:00,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-05-01 06:54:00,754 INFO L142 QuantifierPusher]: treesize reduction 3, result has 99.0 percent of original size [2021-05-01 06:54:00,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 303 [2021-05-01 06:54:00,920 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 67 [2021-05-01 06:54:00,923 INFO L142 QuantifierPusher]: treesize reduction 18, result has 86.5 percent of original size [2021-05-01 06:54:00,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-05-01 06:54:01,013 INFO L142 QuantifierPusher]: treesize reduction 4, result has 98.6 percent of original size [2021-05-01 06:54:01,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 287 [2021-05-01 06:54:01,157 INFO L142 QuantifierPusher]: treesize reduction 40, result has 66.7 percent of original size [2021-05-01 06:54:01,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-05-01 06:54:01,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:01,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-05-01 06:54:01,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:01,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-05-01 06:54:01,318 INFO L142 QuantifierPusher]: treesize reduction 18, result has 96.0 percent of original size [2021-05-01 06:54:01,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 432 [2021-05-01 06:54:01,525 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 50 [2021-05-01 06:54:01,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:01,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:54:01,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:01,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:54:01,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:01,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:54:01,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:01,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:01,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:54:01,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:01,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:01,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:01,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-05-01 06:54:01,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:01,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:01,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:01,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:54:01,684 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:54:01,684 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2145563978] [2021-05-01 06:54:01,684 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [2145563978] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:54:01,684 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:54:01,684 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-05-01 06:54:01,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329841949] [2021-05-01 06:54:01,685 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-05-01 06:54:01,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:54:01,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-05-01 06:54:01,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=473, Unknown=0, NotChecked=0, Total=552 [2021-05-01 06:54:01,686 INFO L87 Difference]: Start difference. First operand 121 states and 130 transitions. Second operand has 24 states, 23 states have (on average 2.0434782608695654) internal successors, (47), 22 states have internal predecessors, (47), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:54:03,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:54:03,307 INFO L93 Difference]: Finished difference Result 220 states and 243 transitions. [2021-05-01 06:54:03,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-05-01 06:54:03,308 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 2.0434782608695654) internal successors, (47), 22 states have internal predecessors, (47), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 65 [2021-05-01 06:54:03,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:54:03,310 INFO L225 Difference]: With dead ends: 220 [2021-05-01 06:54:03,311 INFO L226 Difference]: Without dead ends: 218 [2021-05-01 06:54:03,312 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 317 ImplicationChecksByTransitivity, 2330.1ms TimeCoverageRelationStatistics Valid=207, Invalid=1275, Unknown=0, NotChecked=0, Total=1482 [2021-05-01 06:54:03,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2021-05-01 06:54:03,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 138. [2021-05-01 06:54:03,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 124 states have (on average 1.0725806451612903) internal successors, (133), 126 states have internal predecessors, (133), 8 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2021-05-01 06:54:03,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 148 transitions. [2021-05-01 06:54:03,353 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 148 transitions. Word has length 65 [2021-05-01 06:54:03,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:54:03,354 INFO L480 AbstractCegarLoop]: Abstraction has 138 states and 148 transitions. [2021-05-01 06:54:03,354 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 23 states have (on average 2.0434782608695654) internal successors, (47), 22 states have internal predecessors, (47), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:54:03,354 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 148 transitions. [2021-05-01 06:54:03,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-05-01 06:54:03,355 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:54:03,355 INFO L519 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:54:03,356 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-05-01 06:54:03,356 INFO L428 AbstractCegarLoop]: === Iteration 14 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:54:03,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:54:03,357 INFO L82 PathProgramCache]: Analyzing trace with hash 1282676902, now seen corresponding path program 11 times [2021-05-01 06:54:03,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:54:03,357 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [374967647] [2021-05-01 06:54:03,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:54:03,366 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:54:03,368 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:54:03,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:03,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:03,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:03,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:03,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 06:54:03,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:03,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:54:03,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:03,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:54:03,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:03,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:54:03,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:03,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:54:03,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:03,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:54:03,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:03,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-01 06:54:03,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:03,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 06:54:03,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:03,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 06:54:03,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:03,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 06:54:03,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:03,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 06:54:03,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:03,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 06:54:03,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:03,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 06:54:03,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:03,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-05-01 06:54:03,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:03,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:03,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:54:03,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:03,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:03,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:03,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-05-01 06:54:03,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:03,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:03,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:03,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:54:03,771 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:54:03,771 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [374967647] [2021-05-01 06:54:03,771 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [374967647] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:54:03,771 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:54:03,772 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-05-01 06:54:03,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627456955] [2021-05-01 06:54:03,772 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-05-01 06:54:03,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:54:03,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-05-01 06:54:03,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2021-05-01 06:54:03,773 INFO L87 Difference]: Start difference. First operand 138 states and 148 transitions. Second operand has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 16 states have internal predecessors, (53), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:54:05,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:54:05,304 INFO L93 Difference]: Finished difference Result 266 states and 293 transitions. [2021-05-01 06:54:05,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-05-01 06:54:05,305 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 16 states have internal predecessors, (53), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 68 [2021-05-01 06:54:05,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:54:05,311 INFO L225 Difference]: With dead ends: 266 [2021-05-01 06:54:05,311 INFO L226 Difference]: Without dead ends: 214 [2021-05-01 06:54:05,314 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 499.2ms TimeCoverageRelationStatistics Valid=116, Invalid=640, Unknown=0, NotChecked=0, Total=756 [2021-05-01 06:54:05,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2021-05-01 06:54:05,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 149. [2021-05-01 06:54:05,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 135 states have (on average 1.0740740740740742) internal successors, (145), 137 states have internal predecessors, (145), 8 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2021-05-01 06:54:05,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 160 transitions. [2021-05-01 06:54:05,366 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 160 transitions. Word has length 68 [2021-05-01 06:54:05,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:54:05,368 INFO L480 AbstractCegarLoop]: Abstraction has 149 states and 160 transitions. [2021-05-01 06:54:05,368 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 16 states have internal predecessors, (53), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:54:05,368 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 160 transitions. [2021-05-01 06:54:05,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-05-01 06:54:05,369 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:54:05,369 INFO L519 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:54:05,370 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-05-01 06:54:05,370 INFO L428 AbstractCegarLoop]: === Iteration 15 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:54:05,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:54:05,370 INFO L82 PathProgramCache]: Analyzing trace with hash 1312525181, now seen corresponding path program 12 times [2021-05-01 06:54:05,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:54:05,371 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [580177383] [2021-05-01 06:54:05,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:54:05,380 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:54:05,382 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:54:05,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:05,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:05,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:05,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:05,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-05-01 06:54:05,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:05,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-05-01 06:54:05,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:05,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-05-01 06:54:05,800 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-05-01 06:54:05,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-05-01 06:54:05,848 INFO L142 QuantifierPusher]: treesize reduction 104, result has 48.3 percent of original size [2021-05-01 06:54:05,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-05-01 06:54:05,932 INFO L142 QuantifierPusher]: treesize reduction 90, result has 70.0 percent of original size [2021-05-01 06:54:05,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 210 [2021-05-01 06:54:06,034 INFO L142 QuantifierPusher]: treesize reduction 42, result has 50.0 percent of original size [2021-05-01 06:54:06,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-05-01 06:54:06,078 INFO L142 QuantifierPusher]: treesize reduction 42, result has 51.7 percent of original size [2021-05-01 06:54:06,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-05-01 06:54:06,125 INFO L142 QuantifierPusher]: treesize reduction 42, result has 51.7 percent of original size [2021-05-01 06:54:06,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-05-01 06:54:06,128 INFO L142 QuantifierPusher]: treesize reduction 34, result has 74.6 percent of original size [2021-05-01 06:54:06,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-05-01 06:54:06,217 INFO L142 QuantifierPusher]: treesize reduction 34, result has 74.6 percent of original size [2021-05-01 06:54:06,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-05-01 06:54:06,222 INFO L142 QuantifierPusher]: treesize reduction 34, result has 74.6 percent of original size [2021-05-01 06:54:06,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-05-01 06:54:06,310 INFO L142 QuantifierPusher]: treesize reduction 34, result has 74.6 percent of original size [2021-05-01 06:54:06,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-05-01 06:54:06,318 INFO L142 QuantifierPusher]: treesize reduction 36, result has 85.5 percent of original size [2021-05-01 06:54:06,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 213 [2021-05-01 06:54:06,444 INFO L142 QuantifierPusher]: treesize reduction 47, result has 72.8 percent of original size [2021-05-01 06:54:06,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-05-01 06:54:06,522 INFO L142 QuantifierPusher]: treesize reduction 42, result has 56.3 percent of original size [2021-05-01 06:54:06,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 06:54:06,537 INFO L142 QuantifierPusher]: treesize reduction 42, result has 57.6 percent of original size [2021-05-01 06:54:06,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 06:54:06,551 INFO L142 QuantifierPusher]: treesize reduction 42, result has 57.6 percent of original size [2021-05-01 06:54:06,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 06:54:06,567 INFO L142 QuantifierPusher]: treesize reduction 37, result has 82.1 percent of original size [2021-05-01 06:54:06,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 170 [2021-05-01 06:54:06,603 INFO L142 QuantifierPusher]: treesize reduction 37, result has 82.1 percent of original size [2021-05-01 06:54:06,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 170 [2021-05-01 06:54:06,632 INFO L142 QuantifierPusher]: treesize reduction 37, result has 82.1 percent of original size [2021-05-01 06:54:06,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 170 [2021-05-01 06:54:06,664 INFO L142 QuantifierPusher]: treesize reduction 37, result has 82.1 percent of original size [2021-05-01 06:54:06,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 170 [2021-05-01 06:54:06,721 INFO L142 QuantifierPusher]: treesize reduction 45, result has 93.4 percent of original size [2021-05-01 06:54:06,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 635 [2021-05-01 06:54:06,949 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 50 [2021-05-01 06:54:06,963 INFO L142 QuantifierPusher]: treesize reduction 81, result has 76.3 percent of original size [2021-05-01 06:54:06,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 261 [2021-05-01 06:54:07,114 INFO L142 QuantifierPusher]: treesize reduction 45, result has 70.6 percent of original size [2021-05-01 06:54:07,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 108 [2021-05-01 06:54:07,206 INFO L142 QuantifierPusher]: treesize reduction 45, result has 71.2 percent of original size [2021-05-01 06:54:07,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 111 [2021-05-01 06:54:07,296 INFO L142 QuantifierPusher]: treesize reduction 40, result has 77.7 percent of original size [2021-05-01 06:54:07,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 139 [2021-05-01 06:54:07,411 INFO L142 QuantifierPusher]: treesize reduction 40, result has 77.7 percent of original size [2021-05-01 06:54:07,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 139 [2021-05-01 06:54:07,523 INFO L142 QuantifierPusher]: treesize reduction 18, result has 96.4 percent of original size [2021-05-01 06:54:07,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 478 [2021-05-01 06:54:07,768 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 74 [2021-05-01 06:54:07,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:07,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:54:07,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:07,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:54:07,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:07,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:54:07,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:07,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:07,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:54:07,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:07,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:07,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:07,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-05-01 06:54:07,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:07,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:07,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:07,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-05-01 06:54:07,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:07,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:07,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:07,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-01 06:54:07,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:07,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:07,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:07,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:54:07,925 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:54:07,925 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [580177383] [2021-05-01 06:54:07,925 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [580177383] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:54:07,925 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:54:07,925 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-05-01 06:54:07,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933672804] [2021-05-01 06:54:07,926 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-05-01 06:54:07,926 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:54:07,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-05-01 06:54:07,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=526, Unknown=0, NotChecked=0, Total=600 [2021-05-01 06:54:07,927 INFO L87 Difference]: Start difference. First operand 149 states and 160 transitions. Second operand has 25 states, 24 states have (on average 2.375) internal successors, (57), 23 states have internal predecessors, (57), 5 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-05-01 06:54:09,386 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 63 [2021-05-01 06:54:09,569 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 63 [2021-05-01 06:54:09,759 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 56 [2021-05-01 06:54:09,947 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 74 [2021-05-01 06:54:10,785 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 61 [2021-05-01 06:54:11,064 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 79 [2021-05-01 06:54:11,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:54:11,140 INFO L93 Difference]: Finished difference Result 221 states and 241 transitions. [2021-05-01 06:54:11,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-05-01 06:54:11,142 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 2.375) internal successors, (57), 23 states have internal predecessors, (57), 5 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 73 [2021-05-01 06:54:11,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:54:11,143 INFO L225 Difference]: With dead ends: 221 [2021-05-01 06:54:11,143 INFO L226 Difference]: Without dead ends: 219 [2021-05-01 06:54:11,145 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 12 SyntacticMatches, 7 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 596 ImplicationChecksByTransitivity, 4233.2ms TimeCoverageRelationStatistics Valid=306, Invalid=2244, Unknown=0, NotChecked=0, Total=2550 [2021-05-01 06:54:11,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2021-05-01 06:54:11,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 193. [2021-05-01 06:54:11,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 173 states have (on average 1.0751445086705202) internal successors, (186), 176 states have internal predecessors, (186), 13 states have call successors, (13), 7 states have call predecessors, (13), 6 states have return successors, (12), 9 states have call predecessors, (12), 12 states have call successors, (12) [2021-05-01 06:54:11,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 211 transitions. [2021-05-01 06:54:11,216 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 211 transitions. Word has length 73 [2021-05-01 06:54:11,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:54:11,217 INFO L480 AbstractCegarLoop]: Abstraction has 193 states and 211 transitions. [2021-05-01 06:54:11,217 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 24 states have (on average 2.375) internal successors, (57), 23 states have internal predecessors, (57), 5 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-05-01 06:54:11,217 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 211 transitions. [2021-05-01 06:54:11,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-05-01 06:54:11,218 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:54:11,218 INFO L519 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:54:11,219 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-05-01 06:54:11,219 INFO L428 AbstractCegarLoop]: === Iteration 16 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:54:11,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:54:11,219 INFO L82 PathProgramCache]: Analyzing trace with hash -200935803, now seen corresponding path program 13 times [2021-05-01 06:54:11,219 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:54:11,220 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1802245030] [2021-05-01 06:54:11,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:54:11,229 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:54:11,231 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:54:11,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:11,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:11,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:11,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:11,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-05-01 06:54:11,669 INFO L142 QuantifierPusher]: treesize reduction 59, result has 50.8 percent of original size [2021-05-01 06:54:11,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 06:54:11,714 INFO L142 QuantifierPusher]: treesize reduction 96, result has 41.5 percent of original size [2021-05-01 06:54:11,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-05-01 06:54:11,752 INFO L142 QuantifierPusher]: treesize reduction 13, result has 78.3 percent of original size [2021-05-01 06:54:11,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:54:11,785 INFO L142 QuantifierPusher]: treesize reduction 13, result has 78.3 percent of original size [2021-05-01 06:54:11,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:54:11,820 INFO L142 QuantifierPusher]: treesize reduction 38, result has 58.7 percent of original size [2021-05-01 06:54:11,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 06:54:11,860 INFO L142 QuantifierPusher]: treesize reduction 95, result has 48.1 percent of original size [2021-05-01 06:54:11,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 88 [2021-05-01 06:54:11,922 INFO L142 QuantifierPusher]: treesize reduction 86, result has 68.8 percent of original size [2021-05-01 06:54:11,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 190 [2021-05-01 06:54:12,056 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 47 [2021-05-01 06:54:12,067 INFO L142 QuantifierPusher]: treesize reduction 120, result has 57.4 percent of original size [2021-05-01 06:54:12,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 162 [2021-05-01 06:54:12,186 INFO L142 QuantifierPusher]: treesize reduction 55, result has 61.5 percent of original size [2021-05-01 06:54:12,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 88 [2021-05-01 06:54:12,260 INFO L142 QuantifierPusher]: treesize reduction 59, result has 34.4 percent of original size [2021-05-01 06:54:12,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-01 06:54:12,295 INFO L142 QuantifierPusher]: treesize reduction 59, result has 36.6 percent of original size [2021-05-01 06:54:12,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-05-01 06:54:12,317 INFO L142 QuantifierPusher]: treesize reduction 135, result has 78.3 percent of original size [2021-05-01 06:54:12,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 488 [2021-05-01 06:54:12,374 INFO L142 QuantifierPusher]: treesize reduction 216, result has 62.8 percent of original size [2021-05-01 06:54:12,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 364 [2021-05-01 06:54:12,550 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 46 [2021-05-01 06:54:12,574 INFO L142 QuantifierPusher]: treesize reduction 85, result has 80.4 percent of original size [2021-05-01 06:54:12,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 348 [2021-05-01 06:54:12,806 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 61 [2021-05-01 06:54:12,813 INFO L142 QuantifierPusher]: treesize reduction 105, result has 59.9 percent of original size [2021-05-01 06:54:12,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 157 [2021-05-01 06:54:12,872 INFO L142 QuantifierPusher]: treesize reduction 75, result has 81.8 percent of original size [2021-05-01 06:54:12,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 338 [2021-05-01 06:54:13,123 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 61 [2021-05-01 06:54:13,129 INFO L142 QuantifierPusher]: treesize reduction 95, result has 60.4 percent of original size [2021-05-01 06:54:13,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-05-01 06:54:13,175 INFO L142 QuantifierPusher]: treesize reduction 98, result has 72.9 percent of original size [2021-05-01 06:54:13,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 263 [2021-05-01 06:54:13,325 INFO L142 QuantifierPusher]: treesize reduction 70, result has 59.5 percent of original size [2021-05-01 06:54:13,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-05-01 06:54:13,437 INFO L142 QuantifierPusher]: treesize reduction 54, result has 85.6 percent of original size [2021-05-01 06:54:13,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 321 [2021-05-01 06:54:13,634 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 55 [2021-05-01 06:54:13,638 INFO L142 QuantifierPusher]: treesize reduction 69, result has 61.9 percent of original size [2021-05-01 06:54:13,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-05-01 06:54:13,729 INFO L142 QuantifierPusher]: treesize reduction 50, result has 60.6 percent of original size [2021-05-01 06:54:13,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-05-01 06:54:13,800 INFO L142 QuantifierPusher]: treesize reduction 50, result has 61.5 percent of original size [2021-05-01 06:54:13,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-05-01 06:54:13,904 INFO L142 QuantifierPusher]: treesize reduction 68, result has 86.3 percent of original size [2021-05-01 06:54:13,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 429 [2021-05-01 06:54:14,091 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 52 [2021-05-01 06:54:14,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:14,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:54:14,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:14,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:54:14,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:14,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:54:14,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:14,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:14,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:54:14,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:14,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:14,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:14,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-01 06:54:14,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:14,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:14,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:14,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:54:14,244 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:54:14,244 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1802245030] [2021-05-01 06:54:14,244 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1802245030] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:54:14,244 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:54:14,244 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-05-01 06:54:14,244 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487800599] [2021-05-01 06:54:14,244 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-05-01 06:54:14,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:54:14,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-05-01 06:54:14,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=600, Unknown=0, NotChecked=0, Total=702 [2021-05-01 06:54:14,246 INFO L87 Difference]: Start difference. First operand 193 states and 211 transitions. Second operand has 27 states, 26 states have (on average 2.0) internal successors, (52), 25 states have internal predecessors, (52), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:54:16,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:54:16,638 INFO L93 Difference]: Finished difference Result 287 states and 318 transitions. [2021-05-01 06:54:16,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-05-01 06:54:16,639 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.0) internal successors, (52), 25 states have internal predecessors, (52), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 73 [2021-05-01 06:54:16,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:54:16,642 INFO L225 Difference]: With dead ends: 287 [2021-05-01 06:54:16,643 INFO L226 Difference]: Without dead ends: 285 [2021-05-01 06:54:16,644 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 329 ImplicationChecksByTransitivity, 3034.1ms TimeCoverageRelationStatistics Valid=218, Invalid=1264, Unknown=0, NotChecked=0, Total=1482 [2021-05-01 06:54:16,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2021-05-01 06:54:16,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 197. [2021-05-01 06:54:16,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 176 states have (on average 1.0738636363636365) internal successors, (189), 179 states have internal predecessors, (189), 13 states have call successors, (13), 8 states have call predecessors, (13), 7 states have return successors, (12), 9 states have call predecessors, (12), 12 states have call successors, (12) [2021-05-01 06:54:16,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 214 transitions. [2021-05-01 06:54:16,717 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 214 transitions. Word has length 73 [2021-05-01 06:54:16,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:54:16,722 INFO L480 AbstractCegarLoop]: Abstraction has 197 states and 214 transitions. [2021-05-01 06:54:16,722 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 27 states, 26 states have (on average 2.0) internal successors, (52), 25 states have internal predecessors, (52), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:54:16,722 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 214 transitions. [2021-05-01 06:54:16,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-05-01 06:54:16,724 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:54:16,724 INFO L519 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:54:16,724 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-05-01 06:54:16,724 INFO L428 AbstractCegarLoop]: === Iteration 17 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:54:16,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:54:16,725 INFO L82 PathProgramCache]: Analyzing trace with hash -1952987391, now seen corresponding path program 14 times [2021-05-01 06:54:16,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:54:16,725 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1045254073] [2021-05-01 06:54:16,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:54:16,735 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:54:16,737 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:54:16,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:17,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:17,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:17,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:17,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-05-01 06:54:17,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:17,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:54:17,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:17,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:54:17,268 INFO L142 QuantifierPusher]: treesize reduction 17, result has 80.7 percent of original size [2021-05-01 06:54:17,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-05-01 06:54:17,337 INFO L142 QuantifierPusher]: treesize reduction 74, result has 43.9 percent of original size [2021-05-01 06:54:17,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 06:54:17,397 INFO L142 QuantifierPusher]: treesize reduction 42, result has 83.7 percent of original size [2021-05-01 06:54:17,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 216 [2021-05-01 06:54:17,490 INFO L142 QuantifierPusher]: treesize reduction 121, result has 51.4 percent of original size [2021-05-01 06:54:17,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 128 [2021-05-01 06:54:17,594 INFO L142 QuantifierPusher]: treesize reduction 44, result has 72.0 percent of original size [2021-05-01 06:54:17,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-05-01 06:54:17,696 INFO L142 QuantifierPusher]: treesize reduction 34, result has 64.9 percent of original size [2021-05-01 06:54:17,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-05-01 06:54:17,749 INFO L142 QuantifierPusher]: treesize reduction 34, result has 66.0 percent of original size [2021-05-01 06:54:17,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 06:54:17,806 INFO L142 QuantifierPusher]: treesize reduction 34, result has 66.0 percent of original size [2021-05-01 06:54:17,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 06:54:17,809 INFO L142 QuantifierPusher]: treesize reduction 39, result has 67.5 percent of original size [2021-05-01 06:54:17,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-05-01 06:54:17,879 INFO L142 QuantifierPusher]: treesize reduction 39, result has 67.5 percent of original size [2021-05-01 06:54:17,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-05-01 06:54:17,883 INFO L142 QuantifierPusher]: treesize reduction 39, result has 67.5 percent of original size [2021-05-01 06:54:17,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-05-01 06:54:17,956 INFO L142 QuantifierPusher]: treesize reduction 39, result has 67.5 percent of original size [2021-05-01 06:54:17,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-05-01 06:54:17,965 INFO L142 QuantifierPusher]: treesize reduction 56, result has 81.0 percent of original size [2021-05-01 06:54:17,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 238 [2021-05-01 06:54:18,112 INFO L142 QuantifierPusher]: treesize reduction 82, result has 68.6 percent of original size [2021-05-01 06:54:18,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-05-01 06:54:18,235 INFO L142 QuantifierPusher]: treesize reduction 55, result has 80.4 percent of original size [2021-05-01 06:54:18,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 226 [2021-05-01 06:54:18,346 INFO L142 QuantifierPusher]: treesize reduction 90, result has 50.8 percent of original size [2021-05-01 06:54:18,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-05-01 06:54:18,370 INFO L142 QuantifierPusher]: treesize reduction 50, result has 65.0 percent of original size [2021-05-01 06:54:18,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-05-01 06:54:18,395 INFO L142 QuantifierPusher]: treesize reduction 50, result has 65.8 percent of original size [2021-05-01 06:54:18,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 96 [2021-05-01 06:54:18,427 INFO L142 QuantifierPusher]: treesize reduction 50, result has 65.8 percent of original size [2021-05-01 06:54:18,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 96 [2021-05-01 06:54:18,454 INFO L142 QuantifierPusher]: treesize reduction 96, result has 54.3 percent of original size [2021-05-01 06:54:18,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 114 [2021-05-01 06:54:18,492 INFO L142 QuantifierPusher]: treesize reduction 96, result has 54.3 percent of original size [2021-05-01 06:54:18,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 114 [2021-05-01 06:54:18,528 INFO L142 QuantifierPusher]: treesize reduction 96, result has 54.3 percent of original size [2021-05-01 06:54:18,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 114 [2021-05-01 06:54:18,559 INFO L142 QuantifierPusher]: treesize reduction 96, result has 54.3 percent of original size [2021-05-01 06:54:18,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 114 [2021-05-01 06:54:18,625 INFO L142 QuantifierPusher]: treesize reduction 67, result has 90.3 percent of original size [2021-05-01 06:54:18,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 625 [2021-05-01 06:54:18,851 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 54 [2021-05-01 06:54:18,864 INFO L142 QuantifierPusher]: treesize reduction 45, result has 90.5 percent of original size [2021-05-01 06:54:18,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 429 [2021-05-01 06:54:19,036 INFO L142 QuantifierPusher]: treesize reduction 14, result has 95.7 percent of original size [2021-05-01 06:54:19,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 312 [2021-05-01 06:54:19,217 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 56 [2021-05-01 06:54:19,222 INFO L142 QuantifierPusher]: treesize reduction 29, result has 78.0 percent of original size [2021-05-01 06:54:19,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-05-01 06:54:19,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:19,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-05-01 06:54:19,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:19,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-05-01 06:54:19,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:19,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-05-01 06:54:19,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:19,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-05-01 06:54:19,612 INFO L142 QuantifierPusher]: treesize reduction 18, result has 95.9 percent of original size [2021-05-01 06:54:19,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 422 [2021-05-01 06:54:19,805 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 44 [2021-05-01 06:54:19,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:19,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:54:19,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:19,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:54:19,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:19,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:54:19,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:19,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:19,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:54:19,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:19,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:19,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:19,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-05-01 06:54:19,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:19,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:19,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:19,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-01 06:54:19,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:19,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:19,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:19,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-05-01 06:54:19,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:19,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:19,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:19,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:54:19,956 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:54:19,956 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1045254073] [2021-05-01 06:54:19,956 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1045254073] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:54:19,956 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:54:19,957 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-05-01 06:54:19,957 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125037306] [2021-05-01 06:54:19,957 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-05-01 06:54:19,957 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:54:19,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-05-01 06:54:19,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=770, Unknown=0, NotChecked=0, Total=870 [2021-05-01 06:54:19,958 INFO L87 Difference]: Start difference. First operand 197 states and 214 transitions. Second operand has 30 states, 29 states have (on average 2.2413793103448274) internal successors, (65), 28 states have internal predecessors, (65), 5 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-05-01 06:54:23,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:54:23,616 INFO L93 Difference]: Finished difference Result 271 states and 294 transitions. [2021-05-01 06:54:23,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-05-01 06:54:23,617 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 2.2413793103448274) internal successors, (65), 28 states have internal predecessors, (65), 5 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 81 [2021-05-01 06:54:23,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:54:23,623 INFO L225 Difference]: With dead ends: 271 [2021-05-01 06:54:23,623 INFO L226 Difference]: Without dead ends: 269 [2021-05-01 06:54:23,625 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 12 SyntacticMatches, 8 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 936 ImplicationChecksByTransitivity, 4604.9ms TimeCoverageRelationStatistics Valid=400, Invalid=3022, Unknown=0, NotChecked=0, Total=3422 [2021-05-01 06:54:23,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2021-05-01 06:54:23,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 205. [2021-05-01 06:54:23,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 182 states have (on average 1.0714285714285714) internal successors, (195), 185 states have internal predecessors, (195), 14 states have call successors, (14), 9 states have call predecessors, (14), 8 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2021-05-01 06:54:23,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 222 transitions. [2021-05-01 06:54:23,699 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 222 transitions. Word has length 81 [2021-05-01 06:54:23,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:54:23,699 INFO L480 AbstractCegarLoop]: Abstraction has 205 states and 222 transitions. [2021-05-01 06:54:23,700 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 30 states, 29 states have (on average 2.2413793103448274) internal successors, (65), 28 states have internal predecessors, (65), 5 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-05-01 06:54:23,700 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 222 transitions. [2021-05-01 06:54:23,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-05-01 06:54:23,701 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:54:23,701 INFO L519 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:54:23,701 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-05-01 06:54:23,701 INFO L428 AbstractCegarLoop]: === Iteration 18 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:54:23,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:54:23,702 INFO L82 PathProgramCache]: Analyzing trace with hash 88433457, now seen corresponding path program 15 times [2021-05-01 06:54:23,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:54:23,702 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [298561071] [2021-05-01 06:54:23,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:54:23,711 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:54:23,713 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:54:23,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:23,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:23,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:23,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:23,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 06:54:23,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:23,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 06:54:23,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:23,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 06:54:23,858 INFO L142 QuantifierPusher]: treesize reduction 2, result has 95.3 percent of original size [2021-05-01 06:54:23,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-05-01 06:54:23,891 INFO L142 QuantifierPusher]: treesize reduction 15, result has 55.9 percent of original size [2021-05-01 06:54:23,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-05-01 06:54:23,902 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.7 percent of original size [2021-05-01 06:54:23,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-01 06:54:23,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:23,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 06:54:23,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:23,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 06:54:23,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:23,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-05-01 06:54:23,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:23,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-05-01 06:54:24,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:24,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-05-01 06:54:24,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:24,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-05-01 06:54:24,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:24,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:24,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:54:24,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:24,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:24,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:24,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-05-01 06:54:24,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:24,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:24,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:24,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-05-01 06:54:24,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:24,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:24,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:24,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-01 06:54:24,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:24,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:24,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:24,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-05-01 06:54:24,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:24,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:24,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:24,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-05-01 06:54:24,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:24,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:24,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:24,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:54:24,120 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:54:24,120 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [298561071] [2021-05-01 06:54:24,120 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [298561071] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:54:24,120 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:54:24,120 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-05-01 06:54:24,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893714133] [2021-05-01 06:54:24,121 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-05-01 06:54:24,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:54:24,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-05-01 06:54:24,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-05-01 06:54:24,122 INFO L87 Difference]: Start difference. First operand 205 states and 222 transitions. Second operand has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 13 states have internal predecessors, (48), 6 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-05-01 06:54:24,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:54:24,952 INFO L93 Difference]: Finished difference Result 286 states and 306 transitions. [2021-05-01 06:54:24,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-05-01 06:54:24,953 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 13 states have internal predecessors, (48), 6 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 89 [2021-05-01 06:54:24,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:54:24,955 INFO L225 Difference]: With dead ends: 286 [2021-05-01 06:54:24,955 INFO L226 Difference]: Without dead ends: 170 [2021-05-01 06:54:24,956 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 307.0ms TimeCoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2021-05-01 06:54:24,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2021-05-01 06:54:25,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 150. [2021-05-01 06:54:25,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 132 states have (on average 1.0606060606060606) internal successors, (140), 134 states have internal predecessors, (140), 10 states have call successors, (10), 8 states have call predecessors, (10), 7 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2021-05-01 06:54:25,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 159 transitions. [2021-05-01 06:54:25,002 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 159 transitions. Word has length 89 [2021-05-01 06:54:25,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:54:25,002 INFO L480 AbstractCegarLoop]: Abstraction has 150 states and 159 transitions. [2021-05-01 06:54:25,005 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 13 states have internal predecessors, (48), 6 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-05-01 06:54:25,005 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 159 transitions. [2021-05-01 06:54:25,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-05-01 06:54:25,006 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:54:25,007 INFO L519 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:54:25,007 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-05-01 06:54:25,007 INFO L428 AbstractCegarLoop]: === Iteration 19 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:54:25,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:54:25,007 INFO L82 PathProgramCache]: Analyzing trace with hash 283880411, now seen corresponding path program 16 times [2021-05-01 06:54:25,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:54:25,008 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [579339863] [2021-05-01 06:54:25,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:54:25,016 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:54:25,018 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:54:25,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:25,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:25,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:25,512 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.0 percent of original size [2021-05-01 06:54:25,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-05-01 06:54:25,548 INFO L142 QuantifierPusher]: treesize reduction 43, result has 64.8 percent of original size [2021-05-01 06:54:25,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-05-01 06:54:25,629 INFO L142 QuantifierPusher]: treesize reduction 99, result has 40.4 percent of original size [2021-05-01 06:54:25,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-05-01 06:54:25,689 INFO L142 QuantifierPusher]: treesize reduction 20, result has 69.2 percent of original size [2021-05-01 06:54:25,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-05-01 06:54:25,739 INFO L142 QuantifierPusher]: treesize reduction 20, result has 69.2 percent of original size [2021-05-01 06:54:25,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-05-01 06:54:25,791 INFO L142 QuantifierPusher]: treesize reduction 45, result has 53.6 percent of original size [2021-05-01 06:54:25,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-05-01 06:54:25,854 INFO L142 QuantifierPusher]: treesize reduction 133, result has 49.2 percent of original size [2021-05-01 06:54:25,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 129 [2021-05-01 06:54:25,956 INFO L142 QuantifierPusher]: treesize reduction 136, result has 59.8 percent of original size [2021-05-01 06:54:25,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 202 [2021-05-01 06:54:26,101 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 41 [2021-05-01 06:54:26,104 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.6 percent of original size [2021-05-01 06:54:26,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-05-01 06:54:26,154 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.0 percent of original size [2021-05-01 06:54:26,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-05-01 06:54:26,157 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.0 percent of original size [2021-05-01 06:54:26,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-05-01 06:54:26,160 INFO L142 QuantifierPusher]: treesize reduction 18, result has 76.3 percent of original size [2021-05-01 06:54:26,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 06:54:26,173 INFO L142 QuantifierPusher]: treesize reduction 18, result has 76.3 percent of original size [2021-05-01 06:54:26,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 06:54:26,186 INFO L142 QuantifierPusher]: treesize reduction 18, result has 76.3 percent of original size [2021-05-01 06:54:26,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 06:54:26,200 INFO L142 QuantifierPusher]: treesize reduction 18, result has 76.3 percent of original size [2021-05-01 06:54:26,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 06:54:26,214 INFO L142 QuantifierPusher]: treesize reduction 18, result has 76.3 percent of original size [2021-05-01 06:54:26,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 06:54:26,232 INFO L142 QuantifierPusher]: treesize reduction 18, result has 76.3 percent of original size [2021-05-01 06:54:26,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 06:54:26,253 INFO L142 QuantifierPusher]: treesize reduction 28, result has 88.1 percent of original size [2021-05-01 06:54:26,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 207 [2021-05-01 06:54:26,388 INFO L142 QuantifierPusher]: treesize reduction 35, result has 78.3 percent of original size [2021-05-01 06:54:26,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-05-01 06:54:26,495 INFO L142 QuantifierPusher]: treesize reduction 14, result has 78.5 percent of original size [2021-05-01 06:54:26,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 06:54:26,520 INFO L142 QuantifierPusher]: treesize reduction 14, result has 79.4 percent of original size [2021-05-01 06:54:26,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 06:54:26,528 INFO L142 QuantifierPusher]: treesize reduction 14, result has 79.4 percent of original size [2021-05-01 06:54:26,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 06:54:26,564 INFO L142 QuantifierPusher]: treesize reduction 42, result has 93.1 percent of original size [2021-05-01 06:54:26,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 564 [2021-05-01 06:54:26,646 INFO L142 QuantifierPusher]: treesize reduction 78, result has 85.4 percent of original size [2021-05-01 06:54:26,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 455 [2021-05-01 06:54:26,902 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 48 [2021-05-01 06:54:26,910 INFO L142 QuantifierPusher]: treesize reduction 76, result has 82.8 percent of original size [2021-05-01 06:54:26,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 366 [2021-05-01 06:54:27,127 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 52 [2021-05-01 06:54:27,132 INFO L142 QuantifierPusher]: treesize reduction 72, result has 73.3 percent of original size [2021-05-01 06:54:27,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 198 [2021-05-01 06:54:27,190 INFO L142 QuantifierPusher]: treesize reduction 63, result has 85.3 percent of original size [2021-05-01 06:54:27,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 366 [2021-05-01 06:54:27,396 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 52 [2021-05-01 06:54:27,401 INFO L142 QuantifierPusher]: treesize reduction 59, result has 77.0 percent of original size [2021-05-01 06:54:27,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 198 [2021-05-01 06:54:27,468 INFO L142 QuantifierPusher]: treesize reduction 46, result has 94.5 percent of original size [2021-05-01 06:54:27,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 798 [2021-05-01 06:54:27,747 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 64 [2021-05-01 06:54:27,764 INFO L142 QuantifierPusher]: treesize reduction 67, result has 80.2 percent of original size [2021-05-01 06:54:27,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 272 [2021-05-01 06:54:27,978 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 55 [2021-05-01 06:54:27,981 INFO L142 QuantifierPusher]: treesize reduction 36, result has 75.0 percent of original size [2021-05-01 06:54:27,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 108 [2021-05-01 06:54:28,087 INFO L142 QuantifierPusher]: treesize reduction 36, result has 75.5 percent of original size [2021-05-01 06:54:28,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 111 [2021-05-01 06:54:28,190 INFO L142 QuantifierPusher]: treesize reduction 57, result has 89.5 percent of original size [2021-05-01 06:54:28,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 485 [2021-05-01 06:54:28,412 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 62 [2021-05-01 06:54:28,427 INFO L142 QuantifierPusher]: treesize reduction 78, result has 67.5 percent of original size [2021-05-01 06:54:28,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 162 [2021-05-01 06:54:28,560 INFO L142 QuantifierPusher]: treesize reduction 50, result has 75.8 percent of original size [2021-05-01 06:54:28,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 157 [2021-05-01 06:54:28,682 INFO L142 QuantifierPusher]: treesize reduction 14, result has 88.0 percent of original size [2021-05-01 06:54:28,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-05-01 06:54:28,782 INFO L142 QuantifierPusher]: treesize reduction 14, result has 88.0 percent of original size [2021-05-01 06:54:28,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-05-01 06:54:28,893 INFO L142 QuantifierPusher]: treesize reduction 26, result has 93.5 percent of original size [2021-05-01 06:54:28,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 377 [2021-05-01 06:54:29,099 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 67 [2021-05-01 06:54:29,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:29,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:54:29,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:29,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:54:29,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:29,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:54:29,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:29,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:29,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:54:29,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:29,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:29,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:29,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-05-01 06:54:29,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:29,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:29,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:29,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-01 06:54:29,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:29,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:29,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:29,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-05-01 06:54:29,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:29,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:29,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:29,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-05-01 06:54:29,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:29,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:29,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:29,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:54:29,293 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:54:29,293 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [579339863] [2021-05-01 06:54:29,293 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [579339863] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:54:29,293 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:54:29,293 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-05-01 06:54:29,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169576293] [2021-05-01 06:54:29,294 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-05-01 06:54:29,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:54:29,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-05-01 06:54:29,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=775, Unknown=0, NotChecked=0, Total=870 [2021-05-01 06:54:29,295 INFO L87 Difference]: Start difference. First operand 150 states and 159 transitions. Second operand has 30 states, 28 states have (on average 2.4285714285714284) internal successors, (68), 28 states have internal predecessors, (68), 6 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-05-01 06:54:30,721 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 61 [2021-05-01 06:54:30,930 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 61 [2021-05-01 06:54:31,543 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 77 [2021-05-01 06:54:32,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:54:32,959 INFO L93 Difference]: Finished difference Result 190 states and 202 transitions. [2021-05-01 06:54:32,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-05-01 06:54:32,960 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 28 states have (on average 2.4285714285714284) internal successors, (68), 28 states have internal predecessors, (68), 6 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 89 [2021-05-01 06:54:32,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:54:32,961 INFO L225 Difference]: With dead ends: 190 [2021-05-01 06:54:32,961 INFO L226 Difference]: Without dead ends: 188 [2021-05-01 06:54:32,962 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 14 SyntacticMatches, 12 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 691 ImplicationChecksByTransitivity, 5599.8ms TimeCoverageRelationStatistics Valid=323, Invalid=2539, Unknown=0, NotChecked=0, Total=2862 [2021-05-01 06:54:32,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2021-05-01 06:54:33,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 162. [2021-05-01 06:54:33,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 141 states have (on average 1.0567375886524824) internal successors, (149), 143 states have internal predecessors, (149), 12 states have call successors, (12), 9 states have call predecessors, (12), 8 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2021-05-01 06:54:33,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 172 transitions. [2021-05-01 06:54:33,012 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 172 transitions. Word has length 89 [2021-05-01 06:54:33,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:54:33,013 INFO L480 AbstractCegarLoop]: Abstraction has 162 states and 172 transitions. [2021-05-01 06:54:33,013 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 30 states, 28 states have (on average 2.4285714285714284) internal successors, (68), 28 states have internal predecessors, (68), 6 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-05-01 06:54:33,013 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 172 transitions. [2021-05-01 06:54:33,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-05-01 06:54:33,014 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:54:33,014 INFO L519 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:54:33,014 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-05-01 06:54:33,014 INFO L428 AbstractCegarLoop]: === Iteration 20 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:54:33,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:54:33,014 INFO L82 PathProgramCache]: Analyzing trace with hash 1546174009, now seen corresponding path program 17 times [2021-05-01 06:54:33,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:54:33,015 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [714352223] [2021-05-01 06:54:33,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:54:33,021 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:54:33,022 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:54:33,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:33,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:33,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:33,274 INFO L142 QuantifierPusher]: treesize reduction 13, result has 72.3 percent of original size [2021-05-01 06:54:33,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-05-01 06:54:33,301 INFO L142 QuantifierPusher]: treesize reduction 20, result has 70.1 percent of original size [2021-05-01 06:54:33,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:54:33,336 INFO L142 QuantifierPusher]: treesize reduction 20, result has 70.1 percent of original size [2021-05-01 06:54:33,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:54:33,377 INFO L142 QuantifierPusher]: treesize reduction 36, result has 60.0 percent of original size [2021-05-01 06:54:33,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 06:54:33,425 INFO L142 QuantifierPusher]: treesize reduction 141, result has 35.9 percent of original size [2021-05-01 06:54:33,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-05-01 06:54:33,504 INFO L142 QuantifierPusher]: treesize reduction 147, result has 64.5 percent of original size [2021-05-01 06:54:33,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 267 [2021-05-01 06:54:33,664 INFO L142 QuantifierPusher]: treesize reduction 151, result has 62.6 percent of original size [2021-05-01 06:54:33,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 253 [2021-05-01 06:54:33,704 INFO L142 QuantifierPusher]: treesize reduction 138, result has 42.7 percent of original size [2021-05-01 06:54:33,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-05-01 06:54:33,777 INFO L142 QuantifierPusher]: treesize reduction 139, result has 46.3 percent of original size [2021-05-01 06:54:33,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 120 [2021-05-01 06:54:33,872 INFO L142 QuantifierPusher]: treesize reduction 22, result has 58.5 percent of original size [2021-05-01 06:54:33,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-01 06:54:33,911 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-05-01 06:54:33,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-05-01 06:54:33,915 INFO L142 QuantifierPusher]: treesize reduction 190, result has 30.4 percent of original size [2021-05-01 06:54:33,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-05-01 06:54:33,999 INFO L142 QuantifierPusher]: treesize reduction 190, result has 30.4 percent of original size [2021-05-01 06:54:34,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-05-01 06:54:34,102 INFO L142 QuantifierPusher]: treesize reduction 182, result has 68.6 percent of original size [2021-05-01 06:54:34,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 398 [2021-05-01 06:54:34,278 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 36 [2021-05-01 06:54:34,295 INFO L142 QuantifierPusher]: treesize reduction 315, result has 41.8 percent of original size [2021-05-01 06:54:34,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 226 [2021-05-01 06:54:34,431 INFO L142 QuantifierPusher]: treesize reduction 5, result has 98.7 percent of original size [2021-05-01 06:54:34,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 388 [2021-05-01 06:54:34,611 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 64 [2021-05-01 06:54:34,618 INFO L142 QuantifierPusher]: treesize reduction 29, result has 85.2 percent of original size [2021-05-01 06:54:34,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 167 [2021-05-01 06:54:34,761 INFO L142 QuantifierPusher]: treesize reduction 13, result has 95.0 percent of original size [2021-05-01 06:54:34,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 245 [2021-05-01 06:54:34,918 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 56 [2021-05-01 06:54:34,920 INFO L142 QuantifierPusher]: treesize reduction 32, result has 71.4 percent of original size [2021-05-01 06:54:34,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-05-01 06:54:35,006 INFO L142 QuantifierPusher]: treesize reduction 10, result has 88.9 percent of original size [2021-05-01 06:54:35,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-05-01 06:54:35,010 INFO L142 QuantifierPusher]: treesize reduction 10, result has 89.2 percent of original size [2021-05-01 06:54:35,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-05-01 06:54:35,090 INFO L142 QuantifierPusher]: treesize reduction 10, result has 90.3 percent of original size [2021-05-01 06:54:35,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-05-01 06:54:35,165 INFO L142 QuantifierPusher]: treesize reduction 10, result has 90.3 percent of original size [2021-05-01 06:54:35,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-05-01 06:54:35,249 INFO L142 QuantifierPusher]: treesize reduction 19, result has 95.9 percent of original size [2021-05-01 06:54:35,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 441 [2021-05-01 06:54:35,446 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 51 [2021-05-01 06:54:35,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:35,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:54:35,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:35,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:54:35,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:35,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:54:35,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:35,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:35,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:54:35,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:35,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:35,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:35,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-01 06:54:35,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:35,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:35,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:35,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-05-01 06:54:35,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:35,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:35,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:35,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-05-01 06:54:35,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:35,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:35,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:35,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:54:35,597 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:54:35,597 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [714352223] [2021-05-01 06:54:35,597 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [714352223] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:54:35,598 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:54:35,598 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-05-01 06:54:35,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760515945] [2021-05-01 06:54:35,598 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-05-01 06:54:35,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:54:35,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-05-01 06:54:35,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=617, Unknown=0, NotChecked=0, Total=702 [2021-05-01 06:54:35,599 INFO L87 Difference]: Start difference. First operand 162 states and 172 transitions. Second operand has 27 states, 26 states have (on average 2.230769230769231) internal successors, (58), 25 states have internal predecessors, (58), 5 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-05-01 06:54:37,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:54:37,916 INFO L93 Difference]: Finished difference Result 216 states and 233 transitions. [2021-05-01 06:54:37,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-05-01 06:54:37,917 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.230769230769231) internal successors, (58), 25 states have internal predecessors, (58), 5 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 89 [2021-05-01 06:54:37,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:54:37,918 INFO L225 Difference]: With dead ends: 216 [2021-05-01 06:54:37,918 INFO L226 Difference]: Without dead ends: 214 [2021-05-01 06:54:37,919 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 338 ImplicationChecksByTransitivity, 3037.3ms TimeCoverageRelationStatistics Valid=234, Invalid=1658, Unknown=0, NotChecked=0, Total=1892 [2021-05-01 06:54:37,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2021-05-01 06:54:37,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 126. [2021-05-01 06:54:37,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 110 states have (on average 1.0545454545454545) internal successors, (116), 111 states have internal predecessors, (116), 8 states have call successors, (8), 8 states have call predecessors, (8), 7 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2021-05-01 06:54:37,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 131 transitions. [2021-05-01 06:54:37,954 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 131 transitions. Word has length 89 [2021-05-01 06:54:37,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:54:37,954 INFO L480 AbstractCegarLoop]: Abstraction has 126 states and 131 transitions. [2021-05-01 06:54:37,954 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 27 states, 26 states have (on average 2.230769230769231) internal successors, (58), 25 states have internal predecessors, (58), 5 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-05-01 06:54:37,954 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 131 transitions. [2021-05-01 06:54:37,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-05-01 06:54:37,955 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:54:37,955 INFO L519 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:54:37,955 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-05-01 06:54:37,955 INFO L428 AbstractCegarLoop]: === Iteration 21 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:54:37,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:54:37,956 INFO L82 PathProgramCache]: Analyzing trace with hash -933095755, now seen corresponding path program 18 times [2021-05-01 06:54:37,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:54:37,956 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [892025114] [2021-05-01 06:54:37,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:54:37,961 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:54:37,962 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:54:38,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:38,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:38,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:38,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:38,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 06:54:38,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:38,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:54:38,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:38,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:54:38,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:38,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:54:38,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:38,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:54:38,078 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-05-01 06:54:38,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 06:54:38,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:38,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 06:54:38,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:38,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 06:54:38,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:38,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 06:54:38,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:38,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 06:54:38,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:38,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 06:54:38,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:38,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 06:54:38,208 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.2 percent of original size [2021-05-01 06:54:38,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-05-01 06:54:38,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:38,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:38,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:54:38,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:38,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:38,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:38,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-05-01 06:54:38,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:38,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:38,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:38,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-01 06:54:38,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:38,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:38,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:38,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-05-01 06:54:38,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:38,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:38,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:38,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-05-01 06:54:38,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:38,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:38,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:38,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-01 06:54:38,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:38,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:38,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:38,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:54:38,296 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:54:38,296 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [892025114] [2021-05-01 06:54:38,297 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [892025114] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:54:38,297 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:54:38,297 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-05-01 06:54:38,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764659921] [2021-05-01 06:54:38,297 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-05-01 06:54:38,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:54:38,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-05-01 06:54:38,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2021-05-01 06:54:38,298 INFO L87 Difference]: Start difference. First operand 126 states and 131 transitions. Second operand has 16 states, 16 states have (on average 3.1875) internal successors, (51), 15 states have internal predecessors, (51), 7 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-05-01 06:54:39,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:54:39,153 INFO L93 Difference]: Finished difference Result 236 states and 250 transitions. [2021-05-01 06:54:39,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-05-01 06:54:39,157 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.1875) internal successors, (51), 15 states have internal predecessors, (51), 7 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 97 [2021-05-01 06:54:39,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:54:39,158 INFO L225 Difference]: With dead ends: 236 [2021-05-01 06:54:39,158 INFO L226 Difference]: Without dead ends: 119 [2021-05-01 06:54:39,159 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 298.9ms TimeCoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2021-05-01 06:54:39,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2021-05-01 06:54:39,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 108. [2021-05-01 06:54:39,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 92 states have (on average 1.0434782608695652) internal successors, (96), 93 states have internal predecessors, (96), 8 states have call successors, (8), 8 states have call predecessors, (8), 7 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2021-05-01 06:54:39,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 111 transitions. [2021-05-01 06:54:39,203 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 111 transitions. Word has length 97 [2021-05-01 06:54:39,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:54:39,203 INFO L480 AbstractCegarLoop]: Abstraction has 108 states and 111 transitions. [2021-05-01 06:54:39,204 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 3.1875) internal successors, (51), 15 states have internal predecessors, (51), 7 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-05-01 06:54:39,204 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 111 transitions. [2021-05-01 06:54:39,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-05-01 06:54:39,204 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:54:39,205 INFO L519 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:54:39,205 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-05-01 06:54:39,205 INFO L428 AbstractCegarLoop]: === Iteration 22 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:54:39,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:54:39,205 INFO L82 PathProgramCache]: Analyzing trace with hash 55418349, now seen corresponding path program 19 times [2021-05-01 06:54:39,205 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:54:39,205 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1245129810] [2021-05-01 06:54:39,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:54:39,212 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:54:39,213 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:54:39,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:39,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:39,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:39,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:39,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-05-01 06:54:39,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:39,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:54:39,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:39,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:54:39,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:39,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:54:39,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:39,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:54:39,731 INFO L142 QuantifierPusher]: treesize reduction 2, result has 97.6 percent of original size [2021-05-01 06:54:39,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-05-01 06:54:39,806 INFO L142 QuantifierPusher]: treesize reduction 26, result has 78.9 percent of original size [2021-05-01 06:54:39,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-05-01 06:54:39,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:39,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-01 06:54:39,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:39,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-05-01 06:54:39,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:39,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-05-01 06:54:39,927 INFO L142 QuantifierPusher]: treesize reduction 5, result has 90.7 percent of original size [2021-05-01 06:54:39,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 06:54:39,934 INFO L142 QuantifierPusher]: treesize reduction 5, result has 90.7 percent of original size [2021-05-01 06:54:39,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 06:54:39,941 INFO L142 QuantifierPusher]: treesize reduction 5, result has 90.7 percent of original size [2021-05-01 06:54:39,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 06:54:39,951 INFO L142 QuantifierPusher]: treesize reduction 5, result has 90.7 percent of original size [2021-05-01 06:54:39,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 06:54:39,960 INFO L142 QuantifierPusher]: treesize reduction 5, result has 90.7 percent of original size [2021-05-01 06:54:39,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 06:54:39,971 INFO L142 QuantifierPusher]: treesize reduction 5, result has 90.7 percent of original size [2021-05-01 06:54:39,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 06:54:40,002 INFO L142 QuantifierPusher]: treesize reduction 5, result has 90.7 percent of original size [2021-05-01 06:54:40,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 06:54:40,014 INFO L142 QuantifierPusher]: treesize reduction 5, result has 90.7 percent of original size [2021-05-01 06:54:40,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 06:54:40,031 INFO L142 QuantifierPusher]: treesize reduction 15, result has 93.0 percent of original size [2021-05-01 06:54:40,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 200 [2021-05-01 06:54:40,142 INFO L142 QuantifierPusher]: treesize reduction 32, result has 78.4 percent of original size [2021-05-01 06:54:40,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 116 [2021-05-01 06:54:40,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:40,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-05-01 06:54:40,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:40,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-05-01 06:54:40,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:40,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-05-01 06:54:40,245 INFO L142 QuantifierPusher]: treesize reduction 5, result has 96.4 percent of original size [2021-05-01 06:54:40,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-05-01 06:54:40,255 INFO L142 QuantifierPusher]: treesize reduction 5, result has 96.4 percent of original size [2021-05-01 06:54:40,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-05-01 06:54:40,265 INFO L142 QuantifierPusher]: treesize reduction 5, result has 96.4 percent of original size [2021-05-01 06:54:40,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-05-01 06:54:40,277 INFO L142 QuantifierPusher]: treesize reduction 5, result has 96.4 percent of original size [2021-05-01 06:54:40,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-05-01 06:54:40,290 INFO L142 QuantifierPusher]: treesize reduction 5, result has 96.4 percent of original size [2021-05-01 06:54:40,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-05-01 06:54:40,305 INFO L142 QuantifierPusher]: treesize reduction 5, result has 96.4 percent of original size [2021-05-01 06:54:40,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-05-01 06:54:40,324 INFO L142 QuantifierPusher]: treesize reduction 5, result has 96.4 percent of original size [2021-05-01 06:54:40,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-05-01 06:54:40,342 INFO L142 QuantifierPusher]: treesize reduction 5, result has 96.4 percent of original size [2021-05-01 06:54:40,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-05-01 06:54:40,377 INFO L142 QuantifierPusher]: treesize reduction 21, result has 96.6 percent of original size [2021-05-01 06:54:40,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 593 [2021-05-01 06:54:40,443 INFO L142 QuantifierPusher]: treesize reduction 39, result has 85.5 percent of original size [2021-05-01 06:54:40,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 230 [2021-05-01 06:54:40,555 INFO L142 QuantifierPusher]: treesize reduction 10, result has 88.5 percent of original size [2021-05-01 06:54:40,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-05-01 06:54:40,605 INFO L142 QuantifierPusher]: treesize reduction 10, result has 88.9 percent of original size [2021-05-01 06:54:40,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-05-01 06:54:40,659 INFO L142 QuantifierPusher]: treesize reduction 10, result has 89.8 percent of original size [2021-05-01 06:54:40,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 88 [2021-05-01 06:54:40,723 INFO L142 QuantifierPusher]: treesize reduction 10, result has 88.9 percent of original size [2021-05-01 06:54:40,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-05-01 06:54:40,725 INFO L142 QuantifierPusher]: treesize reduction 10, result has 90.0 percent of original size [2021-05-01 06:54:40,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-05-01 06:54:40,787 INFO L142 QuantifierPusher]: treesize reduction 10, result has 90.0 percent of original size [2021-05-01 06:54:40,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-05-01 06:54:40,849 INFO L142 QuantifierPusher]: treesize reduction 10, result has 90.0 percent of original size [2021-05-01 06:54:40,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-05-01 06:54:40,913 INFO L142 QuantifierPusher]: treesize reduction 10, result has 90.0 percent of original size [2021-05-01 06:54:40,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-05-01 06:54:40,991 INFO L142 QuantifierPusher]: treesize reduction 19, result has 95.8 percent of original size [2021-05-01 06:54:40,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 438 [2021-05-01 06:54:41,168 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 53 [2021-05-01 06:54:41,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:41,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:54:41,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:41,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:54:41,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:41,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:54:41,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:41,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:41,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:54:41,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:41,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:41,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:41,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-01 06:54:41,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:41,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:41,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 06:54:41,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:41,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:54:41,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-05-01 06:54:41,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:41,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:41,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:41,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-05-01 06:54:41,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:41,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:41,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:41,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-01 06:54:41,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:41,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:41,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:41,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-05-01 06:54:41,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:41,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:41,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:41,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:54:41,315 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:54:41,315 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1245129810] [2021-05-01 06:54:41,315 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1245129810] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:54:41,315 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:54:41,316 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-05-01 06:54:41,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458720511] [2021-05-01 06:54:41,316 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-05-01 06:54:41,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:54:41,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-05-01 06:54:41,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=574, Unknown=0, NotChecked=0, Total=650 [2021-05-01 06:54:41,317 INFO L87 Difference]: Start difference. First operand 108 states and 111 transitions. Second operand has 26 states, 24 states have (on average 3.4166666666666665) internal successors, (82), 25 states have internal predecessors, (82), 7 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-05-01 06:54:43,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:54:43,364 INFO L93 Difference]: Finished difference Result 123 states and 127 transitions. [2021-05-01 06:54:43,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-05-01 06:54:43,364 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 3.4166666666666665) internal successors, (82), 25 states have internal predecessors, (82), 7 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 105 [2021-05-01 06:54:43,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:54:43,365 INFO L225 Difference]: With dead ends: 123 [2021-05-01 06:54:43,365 INFO L226 Difference]: Without dead ends: 121 [2021-05-01 06:54:43,366 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 17 SyntacticMatches, 20 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 2511.7ms TimeCoverageRelationStatistics Valid=203, Invalid=1777, Unknown=0, NotChecked=0, Total=1980 [2021-05-01 06:54:43,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2021-05-01 06:54:43,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 114. [2021-05-01 06:54:43,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 97 states have (on average 1.041237113402062) internal successors, (101), 97 states have internal predecessors, (101), 9 states have call successors, (9), 9 states have call predecessors, (9), 7 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2021-05-01 06:54:43,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 118 transitions. [2021-05-01 06:54:43,399 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 118 transitions. Word has length 105 [2021-05-01 06:54:43,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:54:43,399 INFO L480 AbstractCegarLoop]: Abstraction has 114 states and 118 transitions. [2021-05-01 06:54:43,399 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 24 states have (on average 3.4166666666666665) internal successors, (82), 25 states have internal predecessors, (82), 7 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-05-01 06:54:43,399 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 118 transitions. [2021-05-01 06:54:43,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-05-01 06:54:43,400 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:54:43,400 INFO L519 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:54:43,400 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-05-01 06:54:43,400 INFO L428 AbstractCegarLoop]: === Iteration 23 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:54:43,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:54:43,400 INFO L82 PathProgramCache]: Analyzing trace with hash -410921273, now seen corresponding path program 20 times [2021-05-01 06:54:43,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:54:43,400 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1442176955] [2021-05-01 06:54:43,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:54:43,405 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:54:43,406 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:54:43,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:43,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:43,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:43,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:43,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 06:54:43,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:43,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 06:54:43,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:43,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 06:54:43,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:43,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 06:54:43,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:43,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 06:54:43,558 INFO L142 QuantifierPusher]: treesize reduction 2, result has 95.3 percent of original size [2021-05-01 06:54:43,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-05-01 06:54:43,601 INFO L142 QuantifierPusher]: treesize reduction 15, result has 55.9 percent of original size [2021-05-01 06:54:43,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-05-01 06:54:43,612 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.7 percent of original size [2021-05-01 06:54:43,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-01 06:54:43,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:43,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 06:54:43,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:43,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 06:54:43,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:43,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-05-01 06:54:43,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:43,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-05-01 06:54:43,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:43,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-05-01 06:54:43,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:43,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-05-01 06:54:43,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:43,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-05-01 06:54:43,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:43,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-05-01 06:54:43,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:43,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:43,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:54:43,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:43,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:43,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:43,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-01 06:54:43,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:43,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:43,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:43,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-05-01 06:54:43,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:43,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:43,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:43,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-05-01 06:54:43,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:43,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:43,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:43,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-01 06:54:43,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:43,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:43,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:43,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-05-01 06:54:43,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:43,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:43,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:43,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-05-01 06:54:43,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:43,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:43,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:43,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:54:43,876 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:54:43,876 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1442176955] [2021-05-01 06:54:43,876 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1442176955] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:54:43,876 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:54:43,876 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-01 06:54:43,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386395047] [2021-05-01 06:54:43,877 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-01 06:54:43,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:54:43,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-01 06:54:43,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-05-01 06:54:43,877 INFO L87 Difference]: Start difference. First operand 114 states and 118 transitions. Second operand has 18 states, 18 states have (on average 3.1666666666666665) internal successors, (57), 17 states have internal predecessors, (57), 8 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-05-01 06:54:44,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:54:44,920 INFO L93 Difference]: Finished difference Result 265 states and 284 transitions. [2021-05-01 06:54:44,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-05-01 06:54:44,921 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.1666666666666665) internal successors, (57), 17 states have internal predecessors, (57), 8 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Word has length 113 [2021-05-01 06:54:44,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:54:44,922 INFO L225 Difference]: With dead ends: 265 [2021-05-01 06:54:44,922 INFO L226 Difference]: Without dead ends: 133 [2021-05-01 06:54:44,922 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 460.1ms TimeCoverageRelationStatistics Valid=82, Invalid=470, Unknown=0, NotChecked=0, Total=552 [2021-05-01 06:54:44,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-05-01 06:54:44,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 122. [2021-05-01 06:54:44,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 105 states have (on average 1.0380952380952382) internal successors, (109), 105 states have internal predecessors, (109), 9 states have call successors, (9), 9 states have call predecessors, (9), 7 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2021-05-01 06:54:44,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 126 transitions. [2021-05-01 06:54:44,960 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 126 transitions. Word has length 113 [2021-05-01 06:54:44,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:54:44,960 INFO L480 AbstractCegarLoop]: Abstraction has 122 states and 126 transitions. [2021-05-01 06:54:44,961 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 3.1666666666666665) internal successors, (57), 17 states have internal predecessors, (57), 8 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-05-01 06:54:44,961 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 126 transitions. [2021-05-01 06:54:44,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-05-01 06:54:44,961 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:54:44,961 INFO L519 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:54:44,961 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-05-01 06:54:44,961 INFO L428 AbstractCegarLoop]: === Iteration 24 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:54:44,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:54:44,962 INFO L82 PathProgramCache]: Analyzing trace with hash 188454859, now seen corresponding path program 21 times [2021-05-01 06:54:44,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:54:44,962 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1195239528] [2021-05-01 06:54:44,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:54:44,967 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:54:44,968 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:54:45,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:45,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:45,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:45,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:45,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-05-01 06:54:45,345 INFO L142 QuantifierPusher]: treesize reduction 13, result has 74.5 percent of original size [2021-05-01 06:54:45,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-05-01 06:54:45,381 INFO L142 QuantifierPusher]: treesize reduction 13, result has 74.5 percent of original size [2021-05-01 06:54:45,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-05-01 06:54:45,421 INFO L142 QuantifierPusher]: treesize reduction 13, result has 74.5 percent of original size [2021-05-01 06:54:45,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-05-01 06:54:45,460 INFO L142 QuantifierPusher]: treesize reduction 13, result has 74.5 percent of original size [2021-05-01 06:54:45,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-05-01 06:54:45,499 INFO L142 QuantifierPusher]: treesize reduction 13, result has 74.5 percent of original size [2021-05-01 06:54:45,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-05-01 06:54:45,540 INFO L142 QuantifierPusher]: treesize reduction 15, result has 82.6 percent of original size [2021-05-01 06:54:45,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-05-01 06:54:45,602 INFO L142 QuantifierPusher]: treesize reduction 65, result has 43.0 percent of original size [2021-05-01 06:54:45,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 06:54:45,619 INFO L142 QuantifierPusher]: treesize reduction 40, result has 63.6 percent of original size [2021-05-01 06:54:45,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-05-01 06:54:45,678 INFO L142 QuantifierPusher]: treesize reduction 97, result has 39.8 percent of original size [2021-05-01 06:54:45,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-05-01 06:54:45,734 INFO L142 QuantifierPusher]: treesize reduction 97, result has 40.9 percent of original size [2021-05-01 06:54:45,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-05-01 06:54:45,785 INFO L142 QuantifierPusher]: treesize reduction 97, result has 40.9 percent of original size [2021-05-01 06:54:45,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-05-01 06:54:45,787 INFO L142 QuantifierPusher]: treesize reduction 87, result has 59.3 percent of original size [2021-05-01 06:54:45,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-05-01 06:54:45,857 INFO L142 QuantifierPusher]: treesize reduction 87, result has 59.3 percent of original size [2021-05-01 06:54:45,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-05-01 06:54:45,860 INFO L142 QuantifierPusher]: treesize reduction 113, result has 47.2 percent of original size [2021-05-01 06:54:45,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-05-01 06:54:45,920 INFO L142 QuantifierPusher]: treesize reduction 113, result has 47.2 percent of original size [2021-05-01 06:54:45,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-05-01 06:54:45,924 INFO L142 QuantifierPusher]: treesize reduction 87, result has 59.3 percent of original size [2021-05-01 06:54:45,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-05-01 06:54:45,993 INFO L142 QuantifierPusher]: treesize reduction 87, result has 59.3 percent of original size [2021-05-01 06:54:46,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-05-01 06:54:46,008 INFO L142 QuantifierPusher]: treesize reduction 113, result has 47.2 percent of original size [2021-05-01 06:54:46,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-05-01 06:54:46,091 INFO L142 QuantifierPusher]: treesize reduction 113, result has 47.2 percent of original size [2021-05-01 06:54:46,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-05-01 06:54:46,095 INFO L142 QuantifierPusher]: treesize reduction 87, result has 59.3 percent of original size [2021-05-01 06:54:46,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-05-01 06:54:46,172 INFO L142 QuantifierPusher]: treesize reduction 87, result has 59.3 percent of original size [2021-05-01 06:54:46,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-05-01 06:54:46,177 INFO L142 QuantifierPusher]: treesize reduction 153, result has 60.5 percent of original size [2021-05-01 06:54:46,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 234 [2021-05-01 06:54:46,302 INFO L142 QuantifierPusher]: treesize reduction 199, result has 39.0 percent of original size [2021-05-01 06:54:46,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-05-01 06:54:46,385 INFO L142 QuantifierPusher]: treesize reduction 151, result has 26.3 percent of original size [2021-05-01 06:54:46,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 06:54:46,441 INFO L142 QuantifierPusher]: treesize reduction 151, result has 27.4 percent of original size [2021-05-01 06:54:46,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 06:54:46,515 INFO L142 QuantifierPusher]: treesize reduction 151, result has 27.4 percent of original size [2021-05-01 06:54:46,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 06:54:46,520 INFO L142 QuantifierPusher]: treesize reduction 109, result has 65.8 percent of original size [2021-05-01 06:54:46,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 210 [2021-05-01 06:54:46,631 INFO L142 QuantifierPusher]: treesize reduction 109, result has 65.8 percent of original size [2021-05-01 06:54:46,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 210 [2021-05-01 06:54:46,639 INFO L142 QuantifierPusher]: treesize reduction 109, result has 65.8 percent of original size [2021-05-01 06:54:46,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 210 [2021-05-01 06:54:46,751 INFO L142 QuantifierPusher]: treesize reduction 109, result has 65.8 percent of original size [2021-05-01 06:54:46,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 210 [2021-05-01 06:54:46,759 INFO L142 QuantifierPusher]: treesize reduction 109, result has 65.8 percent of original size [2021-05-01 06:54:46,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 210 [2021-05-01 06:54:46,859 INFO L142 QuantifierPusher]: treesize reduction 109, result has 65.8 percent of original size [2021-05-01 06:54:46,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 210 [2021-05-01 06:54:46,867 INFO L142 QuantifierPusher]: treesize reduction 109, result has 65.8 percent of original size [2021-05-01 06:54:46,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 210 [2021-05-01 06:54:46,968 INFO L142 QuantifierPusher]: treesize reduction 109, result has 65.8 percent of original size [2021-05-01 06:54:46,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 210 [2021-05-01 06:54:46,988 INFO L142 QuantifierPusher]: treesize reduction 109, result has 65.8 percent of original size [2021-05-01 06:54:46,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 210 [2021-05-01 06:54:47,100 INFO L142 QuantifierPusher]: treesize reduction 109, result has 65.8 percent of original size [2021-05-01 06:54:47,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 210 [2021-05-01 06:54:47,120 INFO L142 QuantifierPusher]: treesize reduction 86, result has 88.5 percent of original size [2021-05-01 06:54:47,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 664 [2021-05-01 06:54:47,351 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 54 [2021-05-01 06:54:47,370 INFO L142 QuantifierPusher]: treesize reduction 96, result has 71.3 percent of original size [2021-05-01 06:54:47,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 239 [2021-05-01 06:54:47,524 INFO L142 QuantifierPusher]: treesize reduction 85, result has 56.0 percent of original size [2021-05-01 06:54:47,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 108 [2021-05-01 06:54:47,617 INFO L142 QuantifierPusher]: treesize reduction 85, result has 56.6 percent of original size [2021-05-01 06:54:47,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 111 [2021-05-01 06:54:47,714 INFO L142 QuantifierPusher]: treesize reduction 80, result has 63.5 percent of original size [2021-05-01 06:54:47,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 139 [2021-05-01 06:54:47,824 INFO L142 QuantifierPusher]: treesize reduction 80, result has 63.5 percent of original size [2021-05-01 06:54:47,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 139 [2021-05-01 06:54:47,934 INFO L142 QuantifierPusher]: treesize reduction 80, result has 63.5 percent of original size [2021-05-01 06:54:47,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 139 [2021-05-01 06:54:48,048 INFO L142 QuantifierPusher]: treesize reduction 80, result has 63.5 percent of original size [2021-05-01 06:54:48,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 139 [2021-05-01 06:54:48,165 INFO L142 QuantifierPusher]: treesize reduction 80, result has 63.5 percent of original size [2021-05-01 06:54:48,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 139 [2021-05-01 06:54:48,288 INFO L142 QuantifierPusher]: treesize reduction 58, result has 89.2 percent of original size [2021-05-01 06:54:48,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 478 [2021-05-01 06:54:48,570 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 75 [2021-05-01 06:54:48,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:48,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:54:48,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:48,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:54:48,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:48,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:54:48,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:48,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:48,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:54:48,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:48,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:48,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:48,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-05-01 06:54:48,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:48,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:48,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:48,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-05-01 06:54:48,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:48,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:48,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:48,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-01 06:54:48,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:48,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:48,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:48,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-05-01 06:54:48,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:48,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:48,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:48,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-05-01 06:54:48,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:48,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:48,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:48,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-01 06:54:48,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:48,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:48,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:48,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:54:48,759 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:54:48,759 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1195239528] [2021-05-01 06:54:48,759 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1195239528] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:54:48,759 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:54:48,759 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [] total 40 [2021-05-01 06:54:48,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512578223] [2021-05-01 06:54:48,760 INFO L460 AbstractCegarLoop]: Interpolant automaton has 40 states [2021-05-01 06:54:48,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:54:48,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-05-01 06:54:48,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=1405, Unknown=0, NotChecked=0, Total=1560 [2021-05-01 06:54:48,761 INFO L87 Difference]: Start difference. First operand 122 states and 126 transitions. Second operand has 40 states, 39 states have (on average 2.3076923076923075) internal successors, (90), 38 states have internal predecessors, (90), 8 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-05-01 06:54:51,733 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 73 [2021-05-01 06:54:52,356 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2021-05-01 06:54:53,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:54:53,758 INFO L93 Difference]: Finished difference Result 237 states and 259 transitions. [2021-05-01 06:54:53,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-05-01 06:54:53,759 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 2.3076923076923075) internal successors, (90), 38 states have internal predecessors, (90), 8 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Word has length 121 [2021-05-01 06:54:53,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:54:53,761 INFO L225 Difference]: With dead ends: 237 [2021-05-01 06:54:53,761 INFO L226 Difference]: Without dead ends: 235 [2021-05-01 06:54:53,763 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1328 ImplicationChecksByTransitivity, 6203.6ms TimeCoverageRelationStatistics Valid=557, Invalid=5449, Unknown=0, NotChecked=0, Total=6006 [2021-05-01 06:54:53,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2021-05-01 06:54:53,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 199. [2021-05-01 06:54:53,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 173 states have (on average 1.0404624277456647) internal successors, (180), 174 states have internal predecessors, (180), 17 states have call successors, (17), 10 states have call predecessors, (17), 8 states have return successors, (16), 14 states have call predecessors, (16), 16 states have call successors, (16) [2021-05-01 06:54:53,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 213 transitions. [2021-05-01 06:54:53,853 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 213 transitions. Word has length 121 [2021-05-01 06:54:53,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:54:53,854 INFO L480 AbstractCegarLoop]: Abstraction has 199 states and 213 transitions. [2021-05-01 06:54:53,854 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 40 states, 39 states have (on average 2.3076923076923075) internal successors, (90), 38 states have internal predecessors, (90), 8 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-05-01 06:54:53,854 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 213 transitions. [2021-05-01 06:54:53,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-05-01 06:54:53,855 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:54:53,855 INFO L519 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:54:53,855 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-05-01 06:54:53,855 INFO L428 AbstractCegarLoop]: === Iteration 25 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:54:53,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:54:53,856 INFO L82 PathProgramCache]: Analyzing trace with hash 268976676, now seen corresponding path program 22 times [2021-05-01 06:54:53,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:54:53,856 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1234787153] [2021-05-01 06:54:53,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:54:53,870 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:54:53,871 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:54:53,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:53,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:53,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:53,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:53,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 06:54:53,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:53,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:54:53,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:53,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:54:53,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:53,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:54:53,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:53,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:54:54,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:54,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:54:54,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:54,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:54:54,031 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-05-01 06:54:54,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-05-01 06:54:54,055 INFO L142 QuantifierPusher]: treesize reduction 8, result has 83.3 percent of original size [2021-05-01 06:54:54,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-05-01 06:54:54,087 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.5 percent of original size [2021-05-01 06:54:54,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-05-01 06:54:54,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:54,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 06:54:54,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:54,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 06:54:54,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:54,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-05-01 06:54:54,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:54,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-05-01 06:54:54,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:54,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-05-01 06:54:54,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:54,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-05-01 06:54:54,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:54,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-05-01 06:54:54,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:54,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-05-01 06:54:54,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:54,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-05-01 06:54:54,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:54,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:54,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:54:54,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:54,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:54,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:54,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-05-01 06:54:54,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:54,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:54,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:54,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-05-01 06:54:54,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:54,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:54,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:54,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-05-01 06:54:54,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:54,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:54,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:54,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-05-01 06:54:54,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:54,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:54,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:54,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-05-01 06:54:54,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:54,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:54,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:54,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-05-01 06:54:54,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:54,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:54,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:54,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:54:54,444 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:54:54,444 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1234787153] [2021-05-01 06:54:54,444 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1234787153] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:54:54,444 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:54:54,444 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-05-01 06:54:54,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985148654] [2021-05-01 06:54:54,445 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-05-01 06:54:54,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:54:54,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-05-01 06:54:54,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2021-05-01 06:54:54,445 INFO L87 Difference]: Start difference. First operand 199 states and 213 transitions. Second operand has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:54:56,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:54:56,585 INFO L93 Difference]: Finished difference Result 368 states and 404 transitions. [2021-05-01 06:54:56,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-05-01 06:54:56,586 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 124 [2021-05-01 06:54:56,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:54:56,588 INFO L225 Difference]: With dead ends: 368 [2021-05-01 06:54:56,588 INFO L226 Difference]: Without dead ends: 262 [2021-05-01 06:54:56,589 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 779.2ms TimeCoverageRelationStatistics Valid=145, Invalid=1115, Unknown=0, NotChecked=0, Total=1260 [2021-05-01 06:54:56,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2021-05-01 06:54:56,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 210. [2021-05-01 06:54:56,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 184 states have (on average 1.0434782608695652) internal successors, (192), 185 states have internal predecessors, (192), 17 states have call successors, (17), 10 states have call predecessors, (17), 8 states have return successors, (16), 14 states have call predecessors, (16), 16 states have call successors, (16) [2021-05-01 06:54:56,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 225 transitions. [2021-05-01 06:54:56,676 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 225 transitions. Word has length 124 [2021-05-01 06:54:56,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:54:56,677 INFO L480 AbstractCegarLoop]: Abstraction has 210 states and 225 transitions. [2021-05-01 06:54:56,677 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:54:56,677 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 225 transitions. [2021-05-01 06:54:56,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-05-01 06:54:56,678 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:54:56,678 INFO L519 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:54:56,678 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-05-01 06:54:56,678 INFO L428 AbstractCegarLoop]: === Iteration 26 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:54:56,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:54:56,679 INFO L82 PathProgramCache]: Analyzing trace with hash -1964341373, now seen corresponding path program 23 times [2021-05-01 06:54:56,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:54:56,679 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1255778786] [2021-05-01 06:54:56,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:54:56,685 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:54:56,686 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:54:57,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:57,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:57,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:57,313 INFO L142 QuantifierPusher]: treesize reduction 13, result has 72.3 percent of original size [2021-05-01 06:54:57,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-05-01 06:54:57,340 INFO L142 QuantifierPusher]: treesize reduction 20, result has 70.1 percent of original size [2021-05-01 06:54:57,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:54:57,379 INFO L142 QuantifierPusher]: treesize reduction 20, result has 70.1 percent of original size [2021-05-01 06:54:57,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:54:57,419 INFO L142 QuantifierPusher]: treesize reduction 20, result has 70.1 percent of original size [2021-05-01 06:54:57,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:54:57,460 INFO L142 QuantifierPusher]: treesize reduction 20, result has 70.1 percent of original size [2021-05-01 06:54:57,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:54:57,501 INFO L142 QuantifierPusher]: treesize reduction 20, result has 70.1 percent of original size [2021-05-01 06:54:57,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:54:57,554 INFO L142 QuantifierPusher]: treesize reduction 22, result has 78.4 percent of original size [2021-05-01 06:54:57,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-05-01 06:54:57,632 INFO L142 QuantifierPusher]: treesize reduction 141, result has 29.1 percent of original size [2021-05-01 06:54:57,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 06:54:57,685 INFO L142 QuantifierPusher]: treesize reduction 13, result has 74.0 percent of original size [2021-05-01 06:54:57,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-05-01 06:54:57,731 INFO L142 QuantifierPusher]: treesize reduction 14, result has 79.1 percent of original size [2021-05-01 06:54:57,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 06:54:57,793 INFO L142 QuantifierPusher]: treesize reduction 22, result has 58.5 percent of original size [2021-05-01 06:54:57,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-01 06:54:57,838 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-05-01 06:54:57,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-05-01 06:54:57,889 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-05-01 06:54:57,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 06:54:57,944 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-05-01 06:54:57,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 06:54:57,999 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-05-01 06:54:57,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 06:54:58,055 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-05-01 06:54:58,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 06:54:58,100 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-05-01 06:54:58,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 06:54:58,149 INFO L142 QuantifierPusher]: treesize reduction 44, result has 81.7 percent of original size [2021-05-01 06:54:58,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 196 [2021-05-01 06:54:58,252 INFO L142 QuantifierPusher]: treesize reduction 53, result has 69.4 percent of original size [2021-05-01 06:54:58,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 120 [2021-05-01 06:54:58,329 INFO L142 QuantifierPusher]: treesize reduction 17, result has 90.2 percent of original size [2021-05-01 06:54:58,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 156 [2021-05-01 06:54:58,425 INFO L142 QuantifierPusher]: treesize reduction 33, result has 55.4 percent of original size [2021-05-01 06:54:58,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-05-01 06:54:58,481 INFO L142 QuantifierPusher]: treesize reduction 15, result has 73.2 percent of original size [2021-05-01 06:54:58,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-05-01 06:54:58,483 INFO L142 QuantifierPusher]: treesize reduction 15, result has 74.6 percent of original size [2021-05-01 06:54:58,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-05-01 06:54:58,489 INFO L142 QuantifierPusher]: treesize reduction 15, result has 74.6 percent of original size [2021-05-01 06:54:58,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-05-01 06:54:58,494 INFO L142 QuantifierPusher]: treesize reduction 33, result has 61.2 percent of original size [2021-05-01 06:54:58,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-05-01 06:54:58,500 INFO L142 QuantifierPusher]: treesize reduction 33, result has 61.2 percent of original size [2021-05-01 06:54:58,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-05-01 06:54:58,506 INFO L142 QuantifierPusher]: treesize reduction 33, result has 61.2 percent of original size [2021-05-01 06:54:58,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-05-01 06:54:58,513 INFO L142 QuantifierPusher]: treesize reduction 33, result has 61.2 percent of original size [2021-05-01 06:54:58,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-05-01 06:54:58,520 INFO L142 QuantifierPusher]: treesize reduction 33, result has 61.2 percent of original size [2021-05-01 06:54:58,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-05-01 06:54:58,529 INFO L142 QuantifierPusher]: treesize reduction 33, result has 61.2 percent of original size [2021-05-01 06:54:58,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-05-01 06:54:58,538 INFO L142 QuantifierPusher]: treesize reduction 33, result has 61.2 percent of original size [2021-05-01 06:54:58,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-05-01 06:54:58,549 INFO L142 QuantifierPusher]: treesize reduction 33, result has 61.2 percent of original size [2021-05-01 06:54:58,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-05-01 06:54:58,559 INFO L142 QuantifierPusher]: treesize reduction 33, result has 61.2 percent of original size [2021-05-01 06:54:58,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-05-01 06:54:58,571 INFO L142 QuantifierPusher]: treesize reduction 33, result has 61.2 percent of original size [2021-05-01 06:54:58,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-05-01 06:54:58,593 INFO L142 QuantifierPusher]: treesize reduction 32, result has 93.5 percent of original size [2021-05-01 06:54:58,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 463 [2021-05-01 06:54:58,752 INFO L142 QuantifierPusher]: treesize reduction 47, result has 88.5 percent of original size [2021-05-01 06:54:58,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 361 [2021-05-01 06:54:58,894 INFO L142 QuantifierPusher]: treesize reduction 4, result has 98.6 percent of original size [2021-05-01 06:54:58,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 280 [2021-05-01 06:54:59,012 INFO L142 QuantifierPusher]: treesize reduction 40, result has 64.0 percent of original size [2021-05-01 06:54:59,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-05-01 06:54:59,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:59,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-05-01 06:54:59,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:59,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-05-01 06:54:59,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:59,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-05-01 06:54:59,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:59,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-05-01 06:54:59,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:59,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-05-01 06:54:59,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:59,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-05-01 06:54:59,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:59,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-05-01 06:54:59,523 INFO L142 QuantifierPusher]: treesize reduction 18, result has 95.9 percent of original size [2021-05-01 06:54:59,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 425 [2021-05-01 06:54:59,691 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 42 [2021-05-01 06:54:59,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:59,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:54:59,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:59,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:54:59,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:59,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:54:59,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:59,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:59,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:54:59,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:59,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:59,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:59,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-05-01 06:54:59,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:59,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:59,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:59,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-01 06:54:59,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:59,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:59,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:59,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-05-01 06:54:59,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:59,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:59,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:59,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-05-01 06:54:59,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:59,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:59,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:59,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-01 06:54:59,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:59,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:59,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:59,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-05-01 06:54:59,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:54:59,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:54:59,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:54:59,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:54:59,853 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:54:59,854 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1255778786] [2021-05-01 06:54:59,854 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1255778786] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:54:59,854 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:54:59,854 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [38] imperfect sequences [] total 38 [2021-05-01 06:54:59,854 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465179493] [2021-05-01 06:54:59,854 INFO L460 AbstractCegarLoop]: Interpolant automaton has 38 states [2021-05-01 06:54:59,854 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:54:59,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-05-01 06:54:59,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=1216, Unknown=0, NotChecked=0, Total=1406 [2021-05-01 06:54:59,856 INFO L87 Difference]: Start difference. First operand 210 states and 225 transitions. Second operand has 38 states, 37 states have (on average 2.6486486486486487) internal successors, (98), 36 states have internal predecessors, (98), 8 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-05-01 06:55:03,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:55:03,260 INFO L93 Difference]: Finished difference Result 368 states and 404 transitions. [2021-05-01 06:55:03,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-05-01 06:55:03,261 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 2.6486486486486487) internal successors, (98), 36 states have internal predecessors, (98), 8 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Word has length 129 [2021-05-01 06:55:03,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:55:03,263 INFO L225 Difference]: With dead ends: 368 [2021-05-01 06:55:03,263 INFO L226 Difference]: Without dead ends: 366 [2021-05-01 06:55:03,264 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 17 SyntacticMatches, 12 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1522 ImplicationChecksByTransitivity, 3798.4ms TimeCoverageRelationStatistics Valid=570, Invalid=4260, Unknown=0, NotChecked=0, Total=4830 [2021-05-01 06:55:03,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2021-05-01 06:55:03,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 214. [2021-05-01 06:55:03,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 187 states have (on average 1.0427807486631016) internal successors, (195), 188 states have internal predecessors, (195), 17 states have call successors, (17), 11 states have call predecessors, (17), 9 states have return successors, (16), 14 states have call predecessors, (16), 16 states have call successors, (16) [2021-05-01 06:55:03,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 228 transitions. [2021-05-01 06:55:03,378 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 228 transitions. Word has length 129 [2021-05-01 06:55:03,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:55:03,378 INFO L480 AbstractCegarLoop]: Abstraction has 214 states and 228 transitions. [2021-05-01 06:55:03,378 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 38 states, 37 states have (on average 2.6486486486486487) internal successors, (98), 36 states have internal predecessors, (98), 8 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-05-01 06:55:03,378 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 228 transitions. [2021-05-01 06:55:03,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-05-01 06:55:03,379 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:55:03,379 INFO L519 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:55:03,379 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-05-01 06:55:03,379 INFO L428 AbstractCegarLoop]: === Iteration 27 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:55:03,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:55:03,380 INFO L82 PathProgramCache]: Analyzing trace with hash 1282347903, now seen corresponding path program 24 times [2021-05-01 06:55:03,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:55:03,380 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1785501965] [2021-05-01 06:55:03,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:55:03,387 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:55:03,388 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:55:03,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:03,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:03,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:03,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:03,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 06:55:03,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:03,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:55:03,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:03,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:55:03,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:03,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:55:03,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:03,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:55:03,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:03,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:55:03,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:03,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:55:03,550 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-05-01 06:55:03,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 06:55:03,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:03,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 06:55:03,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:03,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 06:55:03,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:03,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 06:55:03,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:03,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 06:55:03,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:03,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 06:55:03,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:03,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 06:55:03,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:03,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 06:55:03,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:03,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 06:55:03,774 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.2 percent of original size [2021-05-01 06:55:03,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-05-01 06:55:03,817 INFO L142 QuantifierPusher]: treesize reduction 17, result has 5.6 percent of original size [2021-05-01 06:55:03,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:03,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:03,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:03,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:55:03,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:03,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:03,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:03,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-05-01 06:55:03,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:03,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:03,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:03,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-05-01 06:55:03,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:03,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:03,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:03,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-01 06:55:03,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:03,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:03,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:03,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-05-01 06:55:03,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:03,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:03,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:03,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-05-01 06:55:03,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:03,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:03,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:03,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-01 06:55:03,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:03,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:03,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:03,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-05-01 06:55:03,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:03,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:03,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:03,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-05-01 06:55:03,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:03,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:03,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:03,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:55:03,893 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:55:03,893 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1785501965] [2021-05-01 06:55:03,893 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1785501965] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:55:03,894 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:55:03,894 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-05-01 06:55:03,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789044337] [2021-05-01 06:55:03,894 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-05-01 06:55:03,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:55:03,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-05-01 06:55:03,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2021-05-01 06:55:03,895 INFO L87 Difference]: Start difference. First operand 214 states and 228 transitions. Second operand has 20 states, 20 states have (on average 3.3) internal successors, (66), 19 states have internal predecessors, (66), 9 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-05-01 06:55:05,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:55:05,290 INFO L93 Difference]: Finished difference Result 314 states and 331 transitions. [2021-05-01 06:55:05,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-05-01 06:55:05,291 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.3) internal successors, (66), 19 states have internal predecessors, (66), 9 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Word has length 137 [2021-05-01 06:55:05,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:55:05,293 INFO L225 Difference]: With dead ends: 314 [2021-05-01 06:55:05,293 INFO L226 Difference]: Without dead ends: 149 [2021-05-01 06:55:05,295 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 489.0ms TimeCoverageRelationStatistics Valid=94, Invalid=608, Unknown=0, NotChecked=0, Total=702 [2021-05-01 06:55:05,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2021-05-01 06:55:05,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 138. [2021-05-01 06:55:05,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 119 states have (on average 1.0336134453781514) internal successors, (123), 119 states have internal predecessors, (123), 10 states have call successors, (10), 10 states have call predecessors, (10), 8 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2021-05-01 06:55:05,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 142 transitions. [2021-05-01 06:55:05,365 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 142 transitions. Word has length 137 [2021-05-01 06:55:05,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:55:05,365 INFO L480 AbstractCegarLoop]: Abstraction has 138 states and 142 transitions. [2021-05-01 06:55:05,366 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 3.3) internal successors, (66), 19 states have internal predecessors, (66), 9 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-05-01 06:55:05,366 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 142 transitions. [2021-05-01 06:55:05,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-05-01 06:55:05,366 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:55:05,366 INFO L519 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:55:05,367 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-05-01 06:55:05,367 INFO L428 AbstractCegarLoop]: === Iteration 28 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:55:05,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:55:05,367 INFO L82 PathProgramCache]: Analyzing trace with hash 1010747997, now seen corresponding path program 25 times [2021-05-01 06:55:05,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:55:05,367 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [689228571] [2021-05-01 06:55:05,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:55:05,374 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:55:05,376 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:55:05,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:05,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:05,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:05,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:05,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-05-01 06:55:05,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:05,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-05-01 06:55:05,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:05,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-05-01 06:55:05,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:05,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-05-01 06:55:05,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:05,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-05-01 06:55:06,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:06,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-05-01 06:55:06,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:06,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-05-01 06:55:06,101 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.1 percent of original size [2021-05-01 06:55:06,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 06:55:06,192 INFO L142 QuantifierPusher]: treesize reduction 104, result has 48.3 percent of original size [2021-05-01 06:55:06,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-05-01 06:55:06,284 INFO L142 QuantifierPusher]: treesize reduction 109, result has 69.9 percent of original size [2021-05-01 06:55:06,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 253 [2021-05-01 06:55:06,435 INFO L142 QuantifierPusher]: treesize reduction 32, result has 61.4 percent of original size [2021-05-01 06:55:06,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 06:55:06,498 INFO L142 QuantifierPusher]: treesize reduction 32, result has 62.8 percent of original size [2021-05-01 06:55:06,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 06:55:06,565 INFO L142 QuantifierPusher]: treesize reduction 36, result has 71.2 percent of original size [2021-05-01 06:55:06,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-05-01 06:55:06,658 INFO L142 QuantifierPusher]: treesize reduction 36, result has 71.2 percent of original size [2021-05-01 06:55:06,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-05-01 06:55:06,755 INFO L142 QuantifierPusher]: treesize reduction 36, result has 71.2 percent of original size [2021-05-01 06:55:06,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-05-01 06:55:06,833 INFO L142 QuantifierPusher]: treesize reduction 36, result has 71.2 percent of original size [2021-05-01 06:55:06,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-05-01 06:55:06,906 INFO L142 QuantifierPusher]: treesize reduction 36, result has 71.2 percent of original size [2021-05-01 06:55:06,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-05-01 06:55:06,981 INFO L142 QuantifierPusher]: treesize reduction 36, result has 71.2 percent of original size [2021-05-01 06:55:06,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-05-01 06:55:07,062 INFO L142 QuantifierPusher]: treesize reduction 27, result has 91.3 percent of original size [2021-05-01 06:55:07,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 283 [2021-05-01 06:55:07,254 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 53 [2021-05-01 06:55:07,257 INFO L142 QuantifierPusher]: treesize reduction 31, result has 81.3 percent of original size [2021-05-01 06:55:07,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-05-01 06:55:07,358 INFO L142 QuantifierPusher]: treesize reduction 33, result has 65.3 percent of original size [2021-05-01 06:55:07,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-05-01 06:55:07,379 INFO L142 QuantifierPusher]: treesize reduction 33, result has 66.3 percent of original size [2021-05-01 06:55:07,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-05-01 06:55:07,403 INFO L142 QuantifierPusher]: treesize reduction 33, result has 66.3 percent of original size [2021-05-01 06:55:07,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-05-01 06:55:07,434 INFO L142 QuantifierPusher]: treesize reduction 51, result has 80.2 percent of original size [2021-05-01 06:55:07,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 207 [2021-05-01 06:55:07,598 INFO L142 QuantifierPusher]: treesize reduction 51, result has 80.2 percent of original size [2021-05-01 06:55:07,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 207 [2021-05-01 06:55:07,608 INFO L142 QuantifierPusher]: treesize reduction 51, result has 80.2 percent of original size [2021-05-01 06:55:07,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 207 [2021-05-01 06:55:07,760 INFO L142 QuantifierPusher]: treesize reduction 51, result has 80.2 percent of original size [2021-05-01 06:55:07,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 207 [2021-05-01 06:55:07,770 INFO L142 QuantifierPusher]: treesize reduction 51, result has 80.2 percent of original size [2021-05-01 06:55:07,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 207 [2021-05-01 06:55:07,922 INFO L142 QuantifierPusher]: treesize reduction 51, result has 80.2 percent of original size [2021-05-01 06:55:07,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 207 [2021-05-01 06:55:07,932 INFO L142 QuantifierPusher]: treesize reduction 51, result has 80.2 percent of original size [2021-05-01 06:55:07,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 207 [2021-05-01 06:55:08,092 INFO L142 QuantifierPusher]: treesize reduction 51, result has 80.2 percent of original size [2021-05-01 06:55:08,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 207 [2021-05-01 06:55:08,102 INFO L142 QuantifierPusher]: treesize reduction 51, result has 80.2 percent of original size [2021-05-01 06:55:08,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 207 [2021-05-01 06:55:08,265 INFO L142 QuantifierPusher]: treesize reduction 51, result has 80.2 percent of original size [2021-05-01 06:55:08,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 207 [2021-05-01 06:55:08,275 INFO L142 QuantifierPusher]: treesize reduction 51, result has 80.2 percent of original size [2021-05-01 06:55:08,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 207 [2021-05-01 06:55:08,417 INFO L142 QuantifierPusher]: treesize reduction 51, result has 80.2 percent of original size [2021-05-01 06:55:08,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 207 [2021-05-01 06:55:08,435 INFO L142 QuantifierPusher]: treesize reduction 39, result has 92.5 percent of original size [2021-05-01 06:55:08,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 481 [2021-05-01 06:55:08,620 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 49 [2021-05-01 06:55:08,632 INFO L142 QuantifierPusher]: treesize reduction 58, result has 84.0 percent of original size [2021-05-01 06:55:08,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 305 [2021-05-01 06:55:08,797 INFO L142 QuantifierPusher]: treesize reduction 29, result has 80.0 percent of original size [2021-05-01 06:55:08,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 116 [2021-05-01 06:55:08,899 INFO L142 QuantifierPusher]: treesize reduction 29, result has 80.4 percent of original size [2021-05-01 06:55:08,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-05-01 06:55:09,009 INFO L142 QuantifierPusher]: treesize reduction 35, result has 80.6 percent of original size [2021-05-01 06:55:09,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-05-01 06:55:09,135 INFO L142 QuantifierPusher]: treesize reduction 35, result has 80.6 percent of original size [2021-05-01 06:55:09,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-05-01 06:55:09,262 INFO L142 QuantifierPusher]: treesize reduction 35, result has 80.6 percent of original size [2021-05-01 06:55:09,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-05-01 06:55:09,385 INFO L142 QuantifierPusher]: treesize reduction 35, result has 80.6 percent of original size [2021-05-01 06:55:09,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-05-01 06:55:09,510 INFO L142 QuantifierPusher]: treesize reduction 35, result has 80.6 percent of original size [2021-05-01 06:55:09,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-05-01 06:55:09,645 INFO L142 QuantifierPusher]: treesize reduction 35, result has 80.6 percent of original size [2021-05-01 06:55:09,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-05-01 06:55:09,786 INFO L142 QuantifierPusher]: treesize reduction 8, result has 98.4 percent of original size [2021-05-01 06:55:09,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 484 [2021-05-01 06:55:10,034 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 67 [2021-05-01 06:55:10,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:10,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:55:10,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:10,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:55:10,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:10,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:55:10,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:10,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:10,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:55:10,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:10,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:10,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:10,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-05-01 06:55:10,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:10,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:10,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:10,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-01 06:55:10,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:10,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:10,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:10,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-05-01 06:55:10,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:10,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:10,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:10,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-05-01 06:55:10,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:10,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:10,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:10,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-01 06:55:10,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:10,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:10,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:10,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-05-01 06:55:10,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:10,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:10,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:10,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-05-01 06:55:10,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:10,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:10,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:10,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:55:10,241 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:55:10,241 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [689228571] [2021-05-01 06:55:10,241 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [689228571] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:55:10,241 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:55:10,241 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [43] imperfect sequences [] total 43 [2021-05-01 06:55:10,241 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512601135] [2021-05-01 06:55:10,241 INFO L460 AbstractCegarLoop]: Interpolant automaton has 43 states [2021-05-01 06:55:10,242 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:55:10,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-05-01 06:55:10,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=1691, Unknown=0, NotChecked=0, Total=1806 [2021-05-01 06:55:10,243 INFO L87 Difference]: Start difference. First operand 138 states and 142 transitions. Second operand has 43 states, 42 states have (on average 2.4047619047619047) internal successors, (101), 41 states have internal predecessors, (101), 9 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-05-01 06:55:11,256 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 73 [2021-05-01 06:55:13,258 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 74 [2021-05-01 06:55:16,219 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 67 [2021-05-01 06:55:16,495 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 64 [2021-05-01 06:55:16,886 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 59 [2021-05-01 06:55:17,153 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 67 [2021-05-01 06:55:17,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:55:17,251 INFO L93 Difference]: Finished difference Result 230 states and 244 transitions. [2021-05-01 06:55:17,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-05-01 06:55:17,252 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 42 states have (on average 2.4047619047619047) internal successors, (101), 41 states have internal predecessors, (101), 9 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 137 [2021-05-01 06:55:17,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:55:17,253 INFO L225 Difference]: With dead ends: 230 [2021-05-01 06:55:17,253 INFO L226 Difference]: Without dead ends: 143 [2021-05-01 06:55:17,254 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 23 SyntacticMatches, 3 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1345 ImplicationChecksByTransitivity, 8496.7ms TimeCoverageRelationStatistics Valid=404, Invalid=5916, Unknown=0, NotChecked=0, Total=6320 [2021-05-01 06:55:17,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2021-05-01 06:55:17,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 141. [2021-05-01 06:55:17,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 122 states have (on average 1.0327868852459017) internal successors, (126), 122 states have internal predecessors, (126), 10 states have call successors, (10), 10 states have call predecessors, (10), 8 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2021-05-01 06:55:17,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 145 transitions. [2021-05-01 06:55:17,313 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 145 transitions. Word has length 137 [2021-05-01 06:55:17,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:55:17,313 INFO L480 AbstractCegarLoop]: Abstraction has 141 states and 145 transitions. [2021-05-01 06:55:17,313 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 43 states, 42 states have (on average 2.4047619047619047) internal successors, (101), 41 states have internal predecessors, (101), 9 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-05-01 06:55:17,314 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 145 transitions. [2021-05-01 06:55:17,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-05-01 06:55:17,314 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:55:17,314 INFO L519 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:55:17,314 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-05-01 06:55:17,315 INFO L428 AbstractCegarLoop]: === Iteration 29 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:55:17,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:55:17,315 INFO L82 PathProgramCache]: Analyzing trace with hash 25535158, now seen corresponding path program 26 times [2021-05-01 06:55:17,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:55:17,315 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1897317378] [2021-05-01 06:55:17,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:55:17,322 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:55:17,323 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:55:17,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:17,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:17,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:17,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:17,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 06:55:17,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:17,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:55:17,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:17,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:55:17,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:17,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:55:17,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:17,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:55:17,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:17,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:55:17,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:17,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:55:17,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:17,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:55:17,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:17,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:55:17,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:17,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-01 06:55:17,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:17,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 06:55:17,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:17,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 06:55:17,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:17,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 06:55:17,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:17,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 06:55:17,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:17,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 06:55:17,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:17,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 06:55:17,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:17,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 06:55:17,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:17,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 06:55:17,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:17,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 06:55:17,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:17,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-05-01 06:55:17,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:17,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:17,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:55:17,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:17,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:17,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:17,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-05-01 06:55:17,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:17,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:17,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:17,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-05-01 06:55:17,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:17,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:17,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:17,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-05-01 06:55:17,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:17,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:17,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:17,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-05-01 06:55:17,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:17,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:17,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:17,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-05-01 06:55:17,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:17,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:17,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:17,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-05-01 06:55:17,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:17,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:17,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:17,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-05-01 06:55:17,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:17,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:17,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:17,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:55:17,975 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:55:17,975 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1897317378] [2021-05-01 06:55:17,975 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1897317378] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:55:17,975 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:55:17,975 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-05-01 06:55:17,975 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222102213] [2021-05-01 06:55:17,975 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-05-01 06:55:17,975 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:55:17,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-05-01 06:55:17,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-05-01 06:55:17,976 INFO L87 Difference]: Start difference. First operand 141 states and 145 transitions. Second operand has 23 states, 23 states have (on average 3.0869565217391304) internal successors, (71), 22 states have internal predecessors, (71), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:55:19,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:55:19,984 INFO L93 Difference]: Finished difference Result 242 states and 252 transitions. [2021-05-01 06:55:19,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-05-01 06:55:19,986 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.0869565217391304) internal successors, (71), 22 states have internal predecessors, (71), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 140 [2021-05-01 06:55:19,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:55:19,986 INFO L225 Difference]: With dead ends: 242 [2021-05-01 06:55:19,987 INFO L226 Difference]: Without dead ends: 161 [2021-05-01 06:55:19,987 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 1073.6ms TimeCoverageRelationStatistics Valid=185, Invalid=1375, Unknown=0, NotChecked=0, Total=1560 [2021-05-01 06:55:19,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2021-05-01 06:55:20,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 146. [2021-05-01 06:55:20,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 127 states have (on average 1.031496062992126) internal successors, (131), 127 states have internal predecessors, (131), 10 states have call successors, (10), 10 states have call predecessors, (10), 8 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2021-05-01 06:55:20,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 150 transitions. [2021-05-01 06:55:20,056 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 150 transitions. Word has length 140 [2021-05-01 06:55:20,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:55:20,056 INFO L480 AbstractCegarLoop]: Abstraction has 146 states and 150 transitions. [2021-05-01 06:55:20,057 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 3.0869565217391304) internal successors, (71), 22 states have internal predecessors, (71), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:55:20,057 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 150 transitions. [2021-05-01 06:55:20,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-05-01 06:55:20,057 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:55:20,057 INFO L519 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:55:20,057 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-05-01 06:55:20,057 INFO L428 AbstractCegarLoop]: === Iteration 30 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:55:20,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:55:20,058 INFO L82 PathProgramCache]: Analyzing trace with hash 573012193, now seen corresponding path program 27 times [2021-05-01 06:55:20,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:55:20,058 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2115410601] [2021-05-01 06:55:20,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:55:20,062 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:55:20,063 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:55:20,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:20,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:20,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:20,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:20,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-05-01 06:55:20,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:20,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-05-01 06:55:20,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:20,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-05-01 06:55:20,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:20,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-05-01 06:55:20,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:20,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-05-01 06:55:20,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:20,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-05-01 06:55:20,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:20,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-05-01 06:55:20,811 INFO L142 QuantifierPusher]: treesize reduction 49, result has 53.8 percent of original size [2021-05-01 06:55:20,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 06:55:20,876 INFO L142 QuantifierPusher]: treesize reduction 80, result has 44.4 percent of original size [2021-05-01 06:55:20,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-05-01 06:55:20,904 INFO L142 QuantifierPusher]: treesize reduction 20, result has 87.0 percent of original size [2021-05-01 06:55:20,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-05-01 06:55:20,993 INFO L142 QuantifierPusher]: treesize reduction 146, result has 35.4 percent of original size [2021-05-01 06:55:20,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-05-01 06:55:21,051 INFO L142 QuantifierPusher]: treesize reduction 9, result has 89.2 percent of original size [2021-05-01 06:55:21,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-05-01 06:55:21,124 INFO L142 QuantifierPusher]: treesize reduction 17, result has 81.1 percent of original size [2021-05-01 06:55:21,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-05-01 06:55:21,189 INFO L142 QuantifierPusher]: treesize reduction 17, result has 81.7 percent of original size [2021-05-01 06:55:21,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-05-01 06:55:21,254 INFO L142 QuantifierPusher]: treesize reduction 36, result has 72.9 percent of original size [2021-05-01 06:55:21,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-05-01 06:55:21,353 INFO L142 QuantifierPusher]: treesize reduction 36, result has 72.9 percent of original size [2021-05-01 06:55:21,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-05-01 06:55:21,439 INFO L142 QuantifierPusher]: treesize reduction 36, result has 72.9 percent of original size [2021-05-01 06:55:21,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-05-01 06:55:21,508 INFO L142 QuantifierPusher]: treesize reduction 36, result has 72.9 percent of original size [2021-05-01 06:55:21,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-05-01 06:55:21,614 INFO L142 QuantifierPusher]: treesize reduction 36, result has 72.9 percent of original size [2021-05-01 06:55:21,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-05-01 06:55:21,698 INFO L142 QuantifierPusher]: treesize reduction 36, result has 72.9 percent of original size [2021-05-01 06:55:21,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-05-01 06:55:21,799 INFO L142 QuantifierPusher]: treesize reduction 64, result has 89.3 percent of original size [2021-05-01 06:55:21,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 533 [2021-05-01 06:55:21,983 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 48 [2021-05-01 06:55:22,003 INFO L142 QuantifierPusher]: treesize reduction 121, result has 76.5 percent of original size [2021-05-01 06:55:22,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 393 [2021-05-01 06:55:22,182 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 55 [2021-05-01 06:55:22,188 INFO L142 QuantifierPusher]: treesize reduction 13, result has 96.2 percent of original size [2021-05-01 06:55:22,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 327 [2021-05-01 06:55:22,425 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 73 [2021-05-01 06:55:22,428 INFO L142 QuantifierPusher]: treesize reduction 19, result has 83.8 percent of original size [2021-05-01 06:55:22,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 98 [2021-05-01 06:55:22,524 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.3 percent of original size [2021-05-01 06:55:22,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-05-01 06:55:22,617 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size [2021-05-01 06:55:22,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-05-01 06:55:22,714 INFO L142 QuantifierPusher]: treesize reduction 5, result has 95.4 percent of original size [2021-05-01 06:55:22,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-05-01 06:55:22,837 INFO L142 QuantifierPusher]: treesize reduction 5, result has 95.4 percent of original size [2021-05-01 06:55:22,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-05-01 06:55:22,960 INFO L142 QuantifierPusher]: treesize reduction 5, result has 95.4 percent of original size [2021-05-01 06:55:22,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-05-01 06:55:23,089 INFO L142 QuantifierPusher]: treesize reduction 5, result has 95.4 percent of original size [2021-05-01 06:55:23,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-05-01 06:55:23,216 INFO L142 QuantifierPusher]: treesize reduction 5, result has 95.4 percent of original size [2021-05-01 06:55:23,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-05-01 06:55:23,337 INFO L142 QuantifierPusher]: treesize reduction 5, result has 95.7 percent of original size [2021-05-01 06:55:23,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 111 [2021-05-01 06:55:23,464 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.5 percent of original size [2021-05-01 06:55:23,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-05-01 06:55:23,582 INFO L142 QuantifierPusher]: treesize reduction 23, result has 94.9 percent of original size [2021-05-01 06:55:23,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 425 [2021-05-01 06:55:23,807 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 51 [2021-05-01 06:55:23,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:23,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:55:23,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:23,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:55:23,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:23,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:55:23,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:23,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:24,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:55:24,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:24,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:24,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:24,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-01 06:55:24,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:24,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:24,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:24,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-05-01 06:55:24,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:24,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:24,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:24,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-05-01 06:55:24,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:24,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:24,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:24,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-01 06:55:24,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:24,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:24,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:24,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-05-01 06:55:24,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:24,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:24,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:24,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-05-01 06:55:24,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:24,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:24,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:24,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-01 06:55:24,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:24,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:24,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:24,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:55:24,054 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:55:24,054 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2115410601] [2021-05-01 06:55:24,055 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [2115410601] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:55:24,055 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:55:24,055 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [39] imperfect sequences [] total 39 [2021-05-01 06:55:24,055 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068340497] [2021-05-01 06:55:24,055 INFO L460 AbstractCegarLoop]: Interpolant automaton has 39 states [2021-05-01 06:55:24,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:55:24,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-05-01 06:55:24,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=1362, Unknown=0, NotChecked=0, Total=1482 [2021-05-01 06:55:24,056 INFO L87 Difference]: Start difference. First operand 146 states and 150 transitions. Second operand has 39 states, 38 states have (on average 2.236842105263158) internal successors, (85), 37 states have internal predecessors, (85), 9 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-05-01 06:55:29,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:55:29,387 INFO L93 Difference]: Finished difference Result 268 states and 289 transitions. [2021-05-01 06:55:29,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-05-01 06:55:29,389 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 38 states have (on average 2.236842105263158) internal successors, (85), 37 states have internal predecessors, (85), 9 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 145 [2021-05-01 06:55:29,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:55:29,408 INFO L225 Difference]: With dead ends: 268 [2021-05-01 06:55:29,408 INFO L226 Difference]: Without dead ends: 266 [2021-05-01 06:55:29,409 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 808 ImplicationChecksByTransitivity, 5735.8ms TimeCoverageRelationStatistics Valid=373, Invalid=3659, Unknown=0, NotChecked=0, Total=4032 [2021-05-01 06:55:29,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2021-05-01 06:55:29,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 233. [2021-05-01 06:55:29,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 205 states have (on average 1.0341463414634147) internal successors, (212), 206 states have internal predecessors, (212), 18 states have call successors, (18), 11 states have call predecessors, (18), 9 states have return successors, (17), 15 states have call predecessors, (17), 17 states have call successors, (17) [2021-05-01 06:55:29,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 247 transitions. [2021-05-01 06:55:29,558 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 247 transitions. Word has length 145 [2021-05-01 06:55:29,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:55:29,559 INFO L480 AbstractCegarLoop]: Abstraction has 233 states and 247 transitions. [2021-05-01 06:55:29,559 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 39 states, 38 states have (on average 2.236842105263158) internal successors, (85), 37 states have internal predecessors, (85), 9 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-05-01 06:55:29,559 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 247 transitions. [2021-05-01 06:55:29,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-05-01 06:55:29,575 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:55:29,575 INFO L519 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:55:29,576 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-05-01 06:55:29,576 INFO L428 AbstractCegarLoop]: === Iteration 31 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:55:29,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:55:29,576 INFO L82 PathProgramCache]: Analyzing trace with hash -1964971974, now seen corresponding path program 28 times [2021-05-01 06:55:29,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:55:29,576 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [153608831] [2021-05-01 06:55:29,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:55:29,583 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:55:29,585 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:55:29,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:29,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:29,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:29,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:29,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 06:55:29,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:29,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:55:29,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:29,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:55:29,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:29,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:55:29,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:29,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:55:29,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:29,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:55:29,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:29,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:55:29,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:29,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:55:30,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:30,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:55:30,037 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-05-01 06:55:30,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-05-01 06:55:30,095 INFO L142 QuantifierPusher]: treesize reduction 8, result has 83.3 percent of original size [2021-05-01 06:55:30,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-05-01 06:55:30,162 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.5 percent of original size [2021-05-01 06:55:30,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-05-01 06:55:30,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:30,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 06:55:30,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:30,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 06:55:30,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:30,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-05-01 06:55:30,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:30,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-05-01 06:55:30,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:30,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-05-01 06:55:30,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:30,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-05-01 06:55:30,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:30,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-05-01 06:55:30,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:30,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-05-01 06:55:30,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:30,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-05-01 06:55:30,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:30,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-05-01 06:55:30,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:30,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-05-01 06:55:30,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:30,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:30,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:55:30,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:30,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:30,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:30,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-05-01 06:55:30,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:30,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:30,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:30,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-05-01 06:55:30,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:30,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:30,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:30,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-05-01 06:55:30,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:30,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:30,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:30,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-05-01 06:55:30,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:30,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:30,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:30,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-05-01 06:55:30,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:30,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:30,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:30,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-05-01 06:55:30,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:30,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:30,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:30,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-05-01 06:55:31,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:31,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:31,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:31,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:55:31,011 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:55:31,011 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [153608831] [2021-05-01 06:55:31,011 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [153608831] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:55:31,011 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:55:31,011 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-05-01 06:55:31,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979247740] [2021-05-01 06:55:31,012 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-05-01 06:55:31,012 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:55:31,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-05-01 06:55:31,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2021-05-01 06:55:31,025 INFO L87 Difference]: Start difference. First operand 233 states and 247 transitions. Second operand has 26 states, 26 states have (on average 2.9615384615384617) internal successors, (77), 25 states have internal predecessors, (77), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:55:35,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:55:35,391 INFO L93 Difference]: Finished difference Result 430 states and 469 transitions. [2021-05-01 06:55:35,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-05-01 06:55:35,393 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 2.9615384615384617) internal successors, (77), 25 states have internal predecessors, (77), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 148 [2021-05-01 06:55:35,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:55:35,394 INFO L225 Difference]: With dead ends: 430 [2021-05-01 06:55:35,395 INFO L226 Difference]: Without dead ends: 312 [2021-05-01 06:55:35,395 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 1772.3ms TimeCoverageRelationStatistics Valid=181, Invalid=1711, Unknown=0, NotChecked=0, Total=1892 [2021-05-01 06:55:35,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2021-05-01 06:55:35,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 244. [2021-05-01 06:55:35,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 216 states have (on average 1.037037037037037) internal successors, (224), 217 states have internal predecessors, (224), 18 states have call successors, (18), 11 states have call predecessors, (18), 9 states have return successors, (17), 15 states have call predecessors, (17), 17 states have call successors, (17) [2021-05-01 06:55:35,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 259 transitions. [2021-05-01 06:55:35,718 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 259 transitions. Word has length 148 [2021-05-01 06:55:35,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:55:35,718 INFO L480 AbstractCegarLoop]: Abstraction has 244 states and 259 transitions. [2021-05-01 06:55:35,718 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 2.9615384615384617) internal successors, (77), 25 states have internal predecessors, (77), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:55:35,719 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 259 transitions. [2021-05-01 06:55:35,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-05-01 06:55:35,720 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:55:35,720 INFO L519 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:55:35,725 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-05-01 06:55:35,725 INFO L428 AbstractCegarLoop]: === Iteration 32 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:55:35,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:55:35,726 INFO L82 PathProgramCache]: Analyzing trace with hash -1256489541, now seen corresponding path program 29 times [2021-05-01 06:55:35,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:55:35,726 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1995373005] [2021-05-01 06:55:35,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:55:35,739 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:55:35,741 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:55:36,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:37,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:37,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:37,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:37,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-05-01 06:55:37,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:37,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:55:37,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:37,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:55:37,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:37,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:55:37,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:37,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:55:37,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:37,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:55:37,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:37,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:55:37,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:37,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:55:37,540 INFO L142 QuantifierPusher]: treesize reduction 20, result has 78.0 percent of original size [2021-05-01 06:55:37,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-05-01 06:55:37,624 INFO L142 QuantifierPusher]: treesize reduction 80, result has 42.0 percent of original size [2021-05-01 06:55:37,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 06:55:37,651 INFO L142 QuantifierPusher]: treesize reduction 22, result has 72.8 percent of original size [2021-05-01 06:55:37,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 06:55:37,729 INFO L142 QuantifierPusher]: treesize reduction 54, result has 43.8 percent of original size [2021-05-01 06:55:37,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-05-01 06:55:37,786 INFO L142 QuantifierPusher]: treesize reduction 54, result has 45.5 percent of original size [2021-05-01 06:55:37,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-05-01 06:55:37,846 INFO L142 QuantifierPusher]: treesize reduction 54, result has 45.5 percent of original size [2021-05-01 06:55:37,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-05-01 06:55:37,849 INFO L142 QuantifierPusher]: treesize reduction 47, result has 60.5 percent of original size [2021-05-01 06:55:37,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 06:55:37,939 INFO L142 QuantifierPusher]: treesize reduction 47, result has 60.5 percent of original size [2021-05-01 06:55:37,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 06:55:37,942 INFO L142 QuantifierPusher]: treesize reduction 47, result has 60.5 percent of original size [2021-05-01 06:55:37,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 06:55:38,037 INFO L142 QuantifierPusher]: treesize reduction 47, result has 60.5 percent of original size [2021-05-01 06:55:38,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 06:55:38,039 INFO L142 QuantifierPusher]: treesize reduction 47, result has 60.5 percent of original size [2021-05-01 06:55:38,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 06:55:38,137 INFO L142 QuantifierPusher]: treesize reduction 47, result has 60.5 percent of original size [2021-05-01 06:55:38,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 06:55:38,140 INFO L142 QuantifierPusher]: treesize reduction 47, result has 60.5 percent of original size [2021-05-01 06:55:38,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 06:55:38,260 INFO L142 QuantifierPusher]: treesize reduction 47, result has 60.5 percent of original size [2021-05-01 06:55:38,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 06:55:38,263 INFO L142 QuantifierPusher]: treesize reduction 47, result has 60.5 percent of original size [2021-05-01 06:55:38,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 06:55:38,368 INFO L142 QuantifierPusher]: treesize reduction 47, result has 60.5 percent of original size [2021-05-01 06:55:38,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 06:55:38,371 INFO L142 QuantifierPusher]: treesize reduction 47, result has 60.5 percent of original size [2021-05-01 06:55:38,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 06:55:38,476 INFO L142 QuantifierPusher]: treesize reduction 47, result has 60.5 percent of original size [2021-05-01 06:55:38,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 06:55:38,482 INFO L142 QuantifierPusher]: treesize reduction 47, result has 60.5 percent of original size [2021-05-01 06:55:38,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 06:55:38,604 INFO L142 QuantifierPusher]: treesize reduction 47, result has 60.5 percent of original size [2021-05-01 06:55:38,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 06:55:38,612 INFO L142 QuantifierPusher]: treesize reduction 60, result has 78.6 percent of original size [2021-05-01 06:55:38,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 220 [2021-05-01 06:55:38,782 INFO L142 QuantifierPusher]: treesize reduction 66, result has 67.6 percent of original size [2021-05-01 06:55:38,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 138 [2021-05-01 06:55:38,932 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.0 percent of original size [2021-05-01 06:55:38,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 06:55:38,960 INFO L142 QuantifierPusher]: treesize reduction 54, result has 51.4 percent of original size [2021-05-01 06:55:38,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 06:55:38,988 INFO L142 QuantifierPusher]: treesize reduction 54, result has 51.4 percent of original size [2021-05-01 06:55:38,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 06:55:39,022 INFO L142 QuantifierPusher]: treesize reduction 44, result has 81.0 percent of original size [2021-05-01 06:55:39,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 187 [2021-05-01 06:55:39,179 INFO L142 QuantifierPusher]: treesize reduction 44, result has 81.0 percent of original size [2021-05-01 06:55:39,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 187 [2021-05-01 06:55:39,188 INFO L142 QuantifierPusher]: treesize reduction 44, result has 81.0 percent of original size [2021-05-01 06:55:39,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 187 [2021-05-01 06:55:39,369 INFO L142 QuantifierPusher]: treesize reduction 44, result has 81.0 percent of original size [2021-05-01 06:55:39,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 187 [2021-05-01 06:55:39,380 INFO L142 QuantifierPusher]: treesize reduction 44, result has 81.0 percent of original size [2021-05-01 06:55:39,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 187 [2021-05-01 06:55:39,555 INFO L142 QuantifierPusher]: treesize reduction 44, result has 81.0 percent of original size [2021-05-01 06:55:39,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 187 [2021-05-01 06:55:39,563 INFO L142 QuantifierPusher]: treesize reduction 44, result has 81.0 percent of original size [2021-05-01 06:55:39,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 187 [2021-05-01 06:55:39,701 INFO L142 QuantifierPusher]: treesize reduction 44, result has 81.0 percent of original size [2021-05-01 06:55:39,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 187 [2021-05-01 06:55:39,706 INFO L142 QuantifierPusher]: treesize reduction 44, result has 81.0 percent of original size [2021-05-01 06:55:39,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 187 [2021-05-01 06:55:39,845 INFO L142 QuantifierPusher]: treesize reduction 44, result has 81.0 percent of original size [2021-05-01 06:55:39,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 187 [2021-05-01 06:55:39,851 INFO L142 QuantifierPusher]: treesize reduction 44, result has 81.0 percent of original size [2021-05-01 06:55:39,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 187 [2021-05-01 06:55:39,996 INFO L142 QuantifierPusher]: treesize reduction 44, result has 81.0 percent of original size [2021-05-01 06:55:39,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 187 [2021-05-01 06:55:40,002 INFO L142 QuantifierPusher]: treesize reduction 44, result has 81.0 percent of original size [2021-05-01 06:55:40,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 187 [2021-05-01 06:55:40,154 INFO L142 QuantifierPusher]: treesize reduction 44, result has 81.0 percent of original size [2021-05-01 06:55:40,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 187 [2021-05-01 06:55:40,167 INFO L142 QuantifierPusher]: treesize reduction 19, result has 96.9 percent of original size [2021-05-01 06:55:40,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 602 [2021-05-01 06:55:40,437 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 54 [2021-05-01 06:55:40,442 INFO L142 QuantifierPusher]: treesize reduction 21, result has 90.8 percent of original size [2021-05-01 06:55:40,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 208 [2021-05-01 06:55:40,615 INFO L142 QuantifierPusher]: treesize reduction 15, result has 83.7 percent of original size [2021-05-01 06:55:40,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-05-01 06:55:40,724 INFO L142 QuantifierPusher]: treesize reduction 15, result has 84.2 percent of original size [2021-05-01 06:55:40,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-05-01 06:55:40,843 INFO L142 QuantifierPusher]: treesize reduction 15, result has 85.7 percent of original size [2021-05-01 06:55:40,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-05-01 06:55:40,972 INFO L142 QuantifierPusher]: treesize reduction 15, result has 85.7 percent of original size [2021-05-01 06:55:40,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-05-01 06:55:41,101 INFO L142 QuantifierPusher]: treesize reduction 15, result has 85.7 percent of original size [2021-05-01 06:55:41,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-05-01 06:55:41,233 INFO L142 QuantifierPusher]: treesize reduction 15, result has 85.7 percent of original size [2021-05-01 06:55:41,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-05-01 06:55:41,367 INFO L142 QuantifierPusher]: treesize reduction 15, result has 85.7 percent of original size [2021-05-01 06:55:41,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-05-01 06:55:41,507 INFO L142 QuantifierPusher]: treesize reduction 15, result has 86.6 percent of original size [2021-05-01 06:55:41,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-05-01 06:55:41,661 INFO L142 QuantifierPusher]: treesize reduction 15, result has 85.7 percent of original size [2021-05-01 06:55:41,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-05-01 06:55:41,663 INFO L142 QuantifierPusher]: treesize reduction 15, result has 85.7 percent of original size [2021-05-01 06:55:41,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-05-01 06:55:41,804 INFO L142 QuantifierPusher]: treesize reduction 15, result has 85.7 percent of original size [2021-05-01 06:55:41,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-05-01 06:55:41,957 INFO L142 QuantifierPusher]: treesize reduction 33, result has 92.8 percent of original size [2021-05-01 06:55:41,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 427 [2021-05-01 06:55:42,265 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 52 [2021-05-01 06:55:42,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:42,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:55:42,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:42,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:55:42,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:42,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:55:42,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:42,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:42,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:55:42,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:42,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:42,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:42,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-01 06:55:42,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:42,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:42,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:42,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-05-01 06:55:42,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:42,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:42,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:42,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-05-01 06:55:42,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:42,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:42,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:42,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-01 06:55:42,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:42,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:42,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:42,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-05-01 06:55:42,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:42,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:42,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:42,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-05-01 06:55:42,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:42,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:42,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 06:55:42,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:42,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:55:42,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-01 06:55:42,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:42,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:42,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:42,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-05-01 06:55:42,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:42,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:42,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:42,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:55:42,687 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:55:42,687 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1995373005] [2021-05-01 06:55:42,687 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1995373005] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:55:42,687 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:55:42,687 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [48] imperfect sequences [] total 48 [2021-05-01 06:55:42,687 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531326906] [2021-05-01 06:55:42,687 INFO L460 AbstractCegarLoop]: Interpolant automaton has 48 states [2021-05-01 06:55:42,687 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:55:42,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-05-01 06:55:42,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=2122, Unknown=0, NotChecked=0, Total=2256 [2021-05-01 06:55:42,688 INFO L87 Difference]: Start difference. First operand 244 states and 259 transitions. Second operand has 48 states, 46 states have (on average 2.5) internal successors, (115), 47 states have internal predecessors, (115), 10 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-05-01 06:55:45,523 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2021-05-01 06:55:51,048 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 51 [2021-05-01 06:55:51,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:55:51,418 INFO L93 Difference]: Finished difference Result 274 states and 290 transitions. [2021-05-01 06:55:51,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-05-01 06:55:51,419 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 46 states have (on average 2.5) internal successors, (115), 47 states have internal predecessors, (115), 10 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Word has length 153 [2021-05-01 06:55:51,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:55:51,420 INFO L225 Difference]: With dead ends: 274 [2021-05-01 06:55:51,420 INFO L226 Difference]: Without dead ends: 156 [2021-05-01 06:55:51,421 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 36 SyntacticMatches, 4 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1522 ImplicationChecksByTransitivity, 9855.9ms TimeCoverageRelationStatistics Valid=494, Invalid=6988, Unknown=0, NotChecked=0, Total=7482 [2021-05-01 06:55:51,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2021-05-01 06:55:51,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 154. [2021-05-01 06:55:51,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 135 states have (on average 1.0296296296296297) internal successors, (139), 135 states have internal predecessors, (139), 10 states have call successors, (10), 10 states have call predecessors, (10), 8 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2021-05-01 06:55:51,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 158 transitions. [2021-05-01 06:55:51,481 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 158 transitions. Word has length 153 [2021-05-01 06:55:51,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:55:51,481 INFO L480 AbstractCegarLoop]: Abstraction has 154 states and 158 transitions. [2021-05-01 06:55:51,481 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 48 states, 46 states have (on average 2.5) internal successors, (115), 47 states have internal predecessors, (115), 10 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-05-01 06:55:51,481 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 158 transitions. [2021-05-01 06:55:51,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-05-01 06:55:51,482 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:55:51,482 INFO L519 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:55:51,482 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-05-01 06:55:51,482 INFO L428 AbstractCegarLoop]: === Iteration 33 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:55:51,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:55:51,483 INFO L82 PathProgramCache]: Analyzing trace with hash -1042616039, now seen corresponding path program 30 times [2021-05-01 06:55:51,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:55:51,483 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1645657283] [2021-05-01 06:55:51,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:55:51,490 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:55:51,491 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:55:51,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:55:52,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:52,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:55:52,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:52,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-05-01 06:55:52,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:52,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:55:52,361 INFO L142 QuantifierPusher]: treesize reduction 10, result has 82.5 percent of original size [2021-05-01 06:55:52,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:55:52,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:52,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:55:52,485 INFO L142 QuantifierPusher]: treesize reduction 10, result has 82.5 percent of original size [2021-05-01 06:55:52,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:55:52,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:55:52,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:55:52,644 INFO L142 QuantifierPusher]: treesize reduction 10, result has 82.5 percent of original size [2021-05-01 06:55:52,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:55:52,716 INFO L142 QuantifierPusher]: treesize reduction 10, result has 86.3 percent of original size [2021-05-01 06:55:52,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-05-01 06:55:52,816 INFO L142 QuantifierPusher]: treesize reduction 77, result has 50.6 percent of original size [2021-05-01 06:55:52,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-05-01 06:55:52,981 INFO L142 QuantifierPusher]: treesize reduction 411, result has 50.2 percent of original size [2021-05-01 06:55:52,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 414 [2021-05-01 06:55:53,251 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 42 [2021-05-01 06:55:53,280 INFO L142 QuantifierPusher]: treesize reduction 401, result has 45.3 percent of original size [2021-05-01 06:55:53,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 332 [2021-05-01 06:55:53,387 INFO L142 QuantifierPusher]: treesize reduction 338, result has 59.5 percent of original size [2021-05-01 06:55:53,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 496 [2021-05-01 06:55:53,645 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 48 [2021-05-01 06:55:53,665 INFO L142 QuantifierPusher]: treesize reduction 412, result has 44.2 percent of original size [2021-05-01 06:55:53,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 327 [2021-05-01 06:55:53,731 INFO L142 QuantifierPusher]: treesize reduction 332, result has 44.7 percent of original size [2021-05-01 06:55:53,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 268 [2021-05-01 06:55:53,915 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 49 [2021-05-01 06:55:53,916 INFO L142 QuantifierPusher]: treesize reduction 25, result has 55.4 percent of original size [2021-05-01 06:55:53,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-01 06:55:53,963 INFO L142 QuantifierPusher]: treesize reduction 25, result has 57.6 percent of original size [2021-05-01 06:55:53,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-05-01 06:55:54,011 INFO L142 QuantifierPusher]: treesize reduction 25, result has 57.6 percent of original size [2021-05-01 06:55:54,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-05-01 06:55:54,013 INFO L142 QuantifierPusher]: treesize reduction 42, result has 53.8 percent of original size [2021-05-01 06:55:54,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 06:55:54,084 INFO L142 QuantifierPusher]: treesize reduction 42, result has 53.8 percent of original size [2021-05-01 06:55:54,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 06:55:54,087 INFO L142 QuantifierPusher]: treesize reduction 42, result has 53.8 percent of original size [2021-05-01 06:55:54,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 06:55:54,170 INFO L142 QuantifierPusher]: treesize reduction 42, result has 53.8 percent of original size [2021-05-01 06:55:54,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 06:55:54,172 INFO L142 QuantifierPusher]: treesize reduction 42, result has 53.8 percent of original size [2021-05-01 06:55:54,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 06:55:54,250 INFO L142 QuantifierPusher]: treesize reduction 42, result has 53.8 percent of original size [2021-05-01 06:55:54,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 06:55:54,252 INFO L142 QuantifierPusher]: treesize reduction 42, result has 53.8 percent of original size [2021-05-01 06:55:54,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 06:55:54,330 INFO L142 QuantifierPusher]: treesize reduction 42, result has 53.8 percent of original size [2021-05-01 06:55:54,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 06:55:54,332 INFO L142 QuantifierPusher]: treesize reduction 42, result has 53.8 percent of original size [2021-05-01 06:55:54,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 06:55:54,411 INFO L142 QuantifierPusher]: treesize reduction 42, result has 53.8 percent of original size [2021-05-01 06:55:54,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 06:55:54,413 INFO L142 QuantifierPusher]: treesize reduction 42, result has 53.8 percent of original size [2021-05-01 06:55:54,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 06:55:54,495 INFO L142 QuantifierPusher]: treesize reduction 42, result has 53.8 percent of original size [2021-05-01 06:55:54,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 06:55:54,501 INFO L142 QuantifierPusher]: treesize reduction 84, result has 77.3 percent of original size [2021-05-01 06:55:54,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 286 [2021-05-01 06:55:54,692 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 44 [2021-05-01 06:55:54,696 INFO L142 QuantifierPusher]: treesize reduction 158, result has 46.6 percent of original size [2021-05-01 06:55:54,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 138 [2021-05-01 06:55:54,861 INFO L142 QuantifierPusher]: treesize reduction 40, result has 85.4 percent of original size [2021-05-01 06:55:54,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 234 [2021-05-01 06:55:55,101 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 54 [2021-05-01 06:55:55,104 INFO L142 QuantifierPusher]: treesize reduction 36, result has 74.6 percent of original size [2021-05-01 06:55:55,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-05-01 06:55:55,266 INFO L142 QuantifierPusher]: treesize reduction 15, result has 93.9 percent of original size [2021-05-01 06:55:55,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 229 [2021-05-01 06:55:55,458 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 43 [2021-05-01 06:55:55,461 INFO L142 QuantifierPusher]: treesize reduction 36, result has 70.7 percent of original size [2021-05-01 06:55:55,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-05-01 06:55:55,595 INFO L142 QuantifierPusher]: treesize reduction 9, result has 85.2 percent of original size [2021-05-01 06:55:55,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-05-01 06:55:55,638 INFO L142 QuantifierPusher]: treesize reduction 9, result has 85.9 percent of original size [2021-05-01 06:55:55,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-05-01 06:55:55,677 INFO L142 QuantifierPusher]: treesize reduction 9, result has 85.9 percent of original size [2021-05-01 06:55:55,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-05-01 06:55:55,719 INFO L142 QuantifierPusher]: treesize reduction 59, result has 74.2 percent of original size [2021-05-01 06:55:55,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 170 [2021-05-01 06:55:55,797 INFO L142 QuantifierPusher]: treesize reduction 59, result has 74.2 percent of original size [2021-05-01 06:55:55,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 170 [2021-05-01 06:55:55,874 INFO L142 QuantifierPusher]: treesize reduction 59, result has 74.2 percent of original size [2021-05-01 06:55:55,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 170 [2021-05-01 06:55:55,945 INFO L142 QuantifierPusher]: treesize reduction 59, result has 74.2 percent of original size [2021-05-01 06:55:55,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 170 [2021-05-01 06:55:56,017 INFO L142 QuantifierPusher]: treesize reduction 59, result has 74.2 percent of original size [2021-05-01 06:55:56,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 170 [2021-05-01 06:55:56,096 INFO L142 QuantifierPusher]: treesize reduction 59, result has 74.2 percent of original size [2021-05-01 06:55:56,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 170 [2021-05-01 06:55:56,176 INFO L142 QuantifierPusher]: treesize reduction 59, result has 74.2 percent of original size [2021-05-01 06:55:56,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 170 [2021-05-01 06:55:56,257 INFO L142 QuantifierPusher]: treesize reduction 59, result has 74.2 percent of original size [2021-05-01 06:55:56,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 170 [2021-05-01 06:55:56,337 INFO L142 QuantifierPusher]: treesize reduction 59, result has 74.2 percent of original size [2021-05-01 06:55:56,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 170 [2021-05-01 06:55:56,427 INFO L142 QuantifierPusher]: treesize reduction 59, result has 74.2 percent of original size [2021-05-01 06:55:56,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 170 [2021-05-01 06:55:56,505 INFO L142 QuantifierPusher]: treesize reduction 59, result has 74.2 percent of original size [2021-05-01 06:55:56,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 170 [2021-05-01 06:55:56,583 INFO L142 QuantifierPusher]: treesize reduction 59, result has 74.2 percent of original size [2021-05-01 06:55:56,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 170 [2021-05-01 06:55:56,690 INFO L142 QuantifierPusher]: treesize reduction 68, result has 90.4 percent of original size [2021-05-01 06:55:56,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 641 [2021-05-01 06:55:56,897 INFO L142 QuantifierPusher]: treesize reduction 21, result has 95.8 percent of original size [2021-05-01 06:55:56,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 480 [2021-05-01 06:55:57,252 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 55 [2021-05-01 06:55:57,260 INFO L142 QuantifierPusher]: treesize reduction 9, result has 97.3 percent of original size [2021-05-01 06:55:57,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 326 [2021-05-01 06:55:57,594 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 60 [2021-05-01 06:55:57,597 INFO L142 QuantifierPusher]: treesize reduction 45, result has 72.4 percent of original size [2021-05-01 06:55:57,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 118 [2021-05-01 06:55:57,684 INFO L142 QuantifierPusher]: treesize reduction 8, result has 97.1 percent of original size [2021-05-01 06:55:57,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 271 [2021-05-01 06:55:58,038 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 61 [2021-05-01 06:55:58,041 INFO L142 QuantifierPusher]: treesize reduction 23, result has 78.5 percent of original size [2021-05-01 06:55:58,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-05-01 06:55:58,190 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size [2021-05-01 06:55:58,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-05-01 06:55:58,193 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.6 percent of original size [2021-05-01 06:55:58,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-05-01 06:55:58,352 INFO L142 QuantifierPusher]: treesize reduction 58, result has 75.1 percent of original size [2021-05-01 06:55:58,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-05-01 06:55:58,575 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 56 [2021-05-01 06:55:58,580 INFO L142 QuantifierPusher]: treesize reduction 58, result has 75.1 percent of original size [2021-05-01 06:55:58,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-05-01 06:55:58,807 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 56 [2021-05-01 06:55:58,813 INFO L142 QuantifierPusher]: treesize reduction 58, result has 75.1 percent of original size [2021-05-01 06:55:58,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-05-01 06:55:59,044 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 56 [2021-05-01 06:55:59,050 INFO L142 QuantifierPusher]: treesize reduction 58, result has 75.1 percent of original size [2021-05-01 06:55:59,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-05-01 06:55:59,294 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 55 [2021-05-01 06:55:59,300 INFO L142 QuantifierPusher]: treesize reduction 58, result has 75.1 percent of original size [2021-05-01 06:55:59,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-05-01 06:55:59,521 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 56 [2021-05-01 06:55:59,527 INFO L142 QuantifierPusher]: treesize reduction 58, result has 75.1 percent of original size [2021-05-01 06:55:59,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-05-01 06:55:59,770 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 55 [2021-05-01 06:55:59,798 INFO L142 QuantifierPusher]: treesize reduction 58, result has 89.2 percent of original size [2021-05-01 06:55:59,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 479 [2021-05-01 06:56:00,201 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 68 [2021-05-01 06:56:00,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:00,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:56:00,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:00,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:56:00,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:00,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:56:00,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:00,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:56:00,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:56:00,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:56:00,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:00,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:56:00,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-05-01 06:56:00,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:56:00,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:00,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:56:00,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-05-01 06:56:00,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:56:00,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:00,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:56:00,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-01 06:56:00,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:56:00,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:00,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:56:00,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-05-01 06:56:00,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:56:00,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:00,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:56:00,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-05-01 06:56:00,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:56:00,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:00,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:56:00,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-01 06:56:00,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:56:00,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:00,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:56:00,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-05-01 06:56:00,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:56:00,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:00,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:56:00,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:56:00,606 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:56:00,606 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1645657283] [2021-05-01 06:56:00,606 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1645657283] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:56:00,606 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:56:00,606 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [44] imperfect sequences [] total 44 [2021-05-01 06:56:00,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218832646] [2021-05-01 06:56:00,607 INFO L460 AbstractCegarLoop]: Interpolant automaton has 44 states [2021-05-01 06:56:00,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:56:00,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2021-05-01 06:56:00,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=1728, Unknown=0, NotChecked=0, Total=1892 [2021-05-01 06:56:00,608 INFO L87 Difference]: Start difference. First operand 154 states and 158 transitions. Second operand has 44 states, 43 states have (on average 2.7209302325581395) internal successors, (117), 42 states have internal predecessors, (117), 9 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-05-01 06:56:01,683 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 37 [2021-05-01 06:56:04,065 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 42 [2021-05-01 06:56:04,383 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 39 [2021-05-01 06:56:04,669 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 42 [2021-05-01 06:56:05,022 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2021-05-01 06:56:05,323 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 44 [2021-05-01 06:56:05,616 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 45 [2021-05-01 06:56:05,885 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 46 [2021-05-01 06:56:06,207 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 59 [2021-05-01 06:56:06,516 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 59 [2021-05-01 06:56:06,811 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 59 [2021-05-01 06:56:07,068 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 59 [2021-05-01 06:56:07,513 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2021-05-01 06:56:07,799 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 64 [2021-05-01 06:56:08,030 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 53 [2021-05-01 06:56:08,350 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 67 [2021-05-01 06:56:08,578 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2021-05-01 06:56:08,987 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 75 [2021-05-01 06:56:09,537 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 69 [2021-05-01 06:56:10,149 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 50 [2021-05-01 06:56:10,499 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 51 [2021-05-01 06:56:10,927 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-05-01 06:56:11,330 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 64 [2021-05-01 06:56:11,781 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-05-01 06:56:12,082 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 50 [2021-05-01 06:56:12,364 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2021-05-01 06:56:12,686 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2021-05-01 06:56:13,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:56:13,710 INFO L93 Difference]: Finished difference Result 278 states and 298 transitions. [2021-05-01 06:56:13,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-05-01 06:56:13,712 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 43 states have (on average 2.7209302325581395) internal successors, (117), 42 states have internal predecessors, (117), 9 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 153 [2021-05-01 06:56:13,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:56:13,713 INFO L225 Difference]: With dead ends: 278 [2021-05-01 06:56:13,713 INFO L226 Difference]: Without dead ends: 276 [2021-05-01 06:56:13,714 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 25 SyntacticMatches, 19 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2063 ImplicationChecksByTransitivity, 15522.5ms TimeCoverageRelationStatistics Valid=730, Invalid=7102, Unknown=0, NotChecked=0, Total=7832 [2021-05-01 06:56:13,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2021-05-01 06:56:13,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 246. [2021-05-01 06:56:13,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 218 states have (on average 1.0321100917431192) internal successors, (225), 219 states have internal predecessors, (225), 18 states have call successors, (18), 11 states have call predecessors, (18), 9 states have return successors, (17), 15 states have call predecessors, (17), 17 states have call successors, (17) [2021-05-01 06:56:13,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 260 transitions. [2021-05-01 06:56:13,841 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 260 transitions. Word has length 153 [2021-05-01 06:56:13,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:56:13,841 INFO L480 AbstractCegarLoop]: Abstraction has 246 states and 260 transitions. [2021-05-01 06:56:13,841 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 44 states, 43 states have (on average 2.7209302325581395) internal successors, (117), 42 states have internal predecessors, (117), 9 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-05-01 06:56:13,841 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 260 transitions. [2021-05-01 06:56:13,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-05-01 06:56:13,842 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:56:13,843 INFO L519 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 8, 8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:56:13,843 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-05-01 06:56:13,843 INFO L428 AbstractCegarLoop]: === Iteration 34 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:56:13,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:56:13,843 INFO L82 PathProgramCache]: Analyzing trace with hash -1719666830, now seen corresponding path program 31 times [2021-05-01 06:56:13,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:56:13,843 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [552614870] [2021-05-01 06:56:13,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:56:13,853 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:56:13,854 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:56:14,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:56:14,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:14,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:56:14,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:14,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 06:56:14,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:14,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:56:14,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:14,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:56:14,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:14,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:56:14,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:14,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:56:14,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:14,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:56:14,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:14,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:56:14,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:14,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:56:14,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:14,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:56:14,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:14,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:56:14,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:14,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:56:14,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:14,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-01 06:56:14,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:14,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 06:56:14,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:14,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 06:56:14,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:14,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 06:56:14,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:14,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 06:56:14,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:14,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 06:56:14,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:14,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 06:56:14,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:14,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 06:56:14,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:14,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 06:56:14,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:14,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 06:56:14,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:14,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 06:56:15,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:15,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 06:56:15,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:15,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-05-01 06:56:15,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:15,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:56:15,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:56:15,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:56:15,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:15,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:56:15,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-05-01 06:56:15,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:56:15,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:15,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:56:15,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-05-01 06:56:15,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:56:15,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:15,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:56:15,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-05-01 06:56:15,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:56:15,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:15,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:56:15,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-05-01 06:56:15,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:56:15,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:15,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:56:15,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-05-01 06:56:15,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:56:15,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:15,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:56:15,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-05-01 06:56:15,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:56:15,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:15,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:56:15,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-05-01 06:56:15,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:56:15,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:15,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:56:15,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:56:15,281 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:56:15,281 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [552614870] [2021-05-01 06:56:15,281 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [552614870] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:56:15,281 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:56:15,281 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-05-01 06:56:15,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953934489] [2021-05-01 06:56:15,281 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-05-01 06:56:15,281 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:56:15,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-05-01 06:56:15,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=637, Unknown=0, NotChecked=0, Total=702 [2021-05-01 06:56:15,282 INFO L87 Difference]: Start difference. First operand 246 states and 260 transitions. Second operand has 27 states, 27 states have (on average 3.074074074074074) internal successors, (83), 26 states have internal predecessors, (83), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:56:22,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:56:22,834 INFO L93 Difference]: Finished difference Result 466 states and 508 transitions. [2021-05-01 06:56:22,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-05-01 06:56:22,836 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.074074074074074) internal successors, (83), 26 states have internal predecessors, (83), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 156 [2021-05-01 06:56:22,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:56:22,837 INFO L225 Difference]: With dead ends: 466 [2021-05-01 06:56:22,837 INFO L226 Difference]: Without dead ends: 346 [2021-05-01 06:56:22,837 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 2665.9ms TimeCoverageRelationStatistics Valid=236, Invalid=2020, Unknown=0, NotChecked=0, Total=2256 [2021-05-01 06:56:22,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2021-05-01 06:56:23,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 257. [2021-05-01 06:56:23,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 229 states have (on average 1.034934497816594) internal successors, (237), 230 states have internal predecessors, (237), 18 states have call successors, (18), 11 states have call predecessors, (18), 9 states have return successors, (17), 15 states have call predecessors, (17), 17 states have call successors, (17) [2021-05-01 06:56:23,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 272 transitions. [2021-05-01 06:56:23,008 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 272 transitions. Word has length 156 [2021-05-01 06:56:23,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:56:23,008 INFO L480 AbstractCegarLoop]: Abstraction has 257 states and 272 transitions. [2021-05-01 06:56:23,009 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.074074074074074) internal successors, (83), 26 states have internal predecessors, (83), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:56:23,009 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 272 transitions. [2021-05-01 06:56:23,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-05-01 06:56:23,010 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:56:23,010 INFO L519 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:56:23,010 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-05-01 06:56:23,010 INFO L428 AbstractCegarLoop]: === Iteration 35 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:56:23,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:56:23,010 INFO L82 PathProgramCache]: Analyzing trace with hash 1959738867, now seen corresponding path program 32 times [2021-05-01 06:56:23,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:56:23,010 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [296871004] [2021-05-01 06:56:23,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:56:23,021 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:56:23,022 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:56:23,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:56:23,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:23,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:56:23,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:23,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-05-01 06:56:23,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:23,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:56:23,680 INFO L142 QuantifierPusher]: treesize reduction 10, result has 82.5 percent of original size [2021-05-01 06:56:23,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:56:23,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:23,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:56:23,836 INFO L142 QuantifierPusher]: treesize reduction 10, result has 82.5 percent of original size [2021-05-01 06:56:23,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:56:23,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:23,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:56:23,972 INFO L142 QuantifierPusher]: treesize reduction 10, result has 82.5 percent of original size [2021-05-01 06:56:23,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:56:24,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:24,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:56:24,121 INFO L142 QuantifierPusher]: treesize reduction 23, result has 77.9 percent of original size [2021-05-01 06:56:24,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-05-01 06:56:24,264 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 35 [2021-05-01 06:56:24,268 INFO L142 QuantifierPusher]: treesize reduction 80, result has 45.9 percent of original size [2021-05-01 06:56:24,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-05-01 06:56:24,360 INFO L142 QuantifierPusher]: treesize reduction 14, result has 92.0 percent of original size [2021-05-01 06:56:24,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 162 [2021-05-01 06:56:24,566 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 36 [2021-05-01 06:56:24,569 INFO L142 QuantifierPusher]: treesize reduction 97, result has 41.9 percent of original size [2021-05-01 06:56:24,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-05-01 06:56:24,679 INFO L142 QuantifierPusher]: treesize reduction 15, result has 79.7 percent of original size [2021-05-01 06:56:24,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 06:56:24,793 INFO L142 QuantifierPusher]: treesize reduction 29, result has 59.2 percent of original size [2021-05-01 06:56:24,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-05-01 06:56:24,871 INFO L142 QuantifierPusher]: treesize reduction 29, result has 59.2 percent of original size [2021-05-01 06:56:24,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-05-01 06:56:24,874 INFO L142 QuantifierPusher]: treesize reduction 29, result has 59.2 percent of original size [2021-05-01 06:56:24,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-05-01 06:56:24,876 INFO L142 QuantifierPusher]: treesize reduction 29, result has 59.2 percent of original size [2021-05-01 06:56:24,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-05-01 06:56:24,878 INFO L142 QuantifierPusher]: treesize reduction 29, result has 59.2 percent of original size [2021-05-01 06:56:24,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-05-01 06:56:24,881 INFO L142 QuantifierPusher]: treesize reduction 29, result has 59.2 percent of original size [2021-05-01 06:56:24,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-05-01 06:56:24,883 INFO L142 QuantifierPusher]: treesize reduction 29, result has 59.2 percent of original size [2021-05-01 06:56:24,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-05-01 06:56:24,885 INFO L142 QuantifierPusher]: treesize reduction 29, result has 59.2 percent of original size [2021-05-01 06:56:24,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-05-01 06:56:24,888 INFO L142 QuantifierPusher]: treesize reduction 29, result has 59.2 percent of original size [2021-05-01 06:56:24,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-05-01 06:56:24,890 INFO L142 QuantifierPusher]: treesize reduction 29, result has 59.2 percent of original size [2021-05-01 06:56:24,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-05-01 06:56:24,893 INFO L142 QuantifierPusher]: treesize reduction 29, result has 59.2 percent of original size [2021-05-01 06:56:24,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-05-01 06:56:24,896 INFO L142 QuantifierPusher]: treesize reduction 29, result has 60.8 percent of original size [2021-05-01 06:56:24,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-05-01 06:56:24,977 INFO L142 QuantifierPusher]: treesize reduction 29, result has 60.8 percent of original size [2021-05-01 06:56:24,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-05-01 06:56:24,980 INFO L142 QuantifierPusher]: treesize reduction 43, result has 59.4 percent of original size [2021-05-01 06:56:24,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-05-01 06:56:25,073 INFO L142 QuantifierPusher]: treesize reduction 43, result has 59.4 percent of original size [2021-05-01 06:56:25,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-05-01 06:56:25,076 INFO L142 QuantifierPusher]: treesize reduction 43, result has 59.4 percent of original size [2021-05-01 06:56:25,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-05-01 06:56:25,183 INFO L142 QuantifierPusher]: treesize reduction 43, result has 59.4 percent of original size [2021-05-01 06:56:25,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-05-01 06:56:25,186 INFO L142 QuantifierPusher]: treesize reduction 43, result has 59.4 percent of original size [2021-05-01 06:56:25,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-05-01 06:56:25,296 INFO L142 QuantifierPusher]: treesize reduction 43, result has 59.4 percent of original size [2021-05-01 06:56:25,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-05-01 06:56:25,299 INFO L142 QuantifierPusher]: treesize reduction 43, result has 59.4 percent of original size [2021-05-01 06:56:25,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-05-01 06:56:25,404 INFO L142 QuantifierPusher]: treesize reduction 43, result has 59.4 percent of original size [2021-05-01 06:56:25,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-05-01 06:56:25,407 INFO L142 QuantifierPusher]: treesize reduction 43, result has 59.4 percent of original size [2021-05-01 06:56:25,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-05-01 06:56:25,516 INFO L142 QuantifierPusher]: treesize reduction 43, result has 59.4 percent of original size [2021-05-01 06:56:25,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-05-01 06:56:25,519 INFO L142 QuantifierPusher]: treesize reduction 43, result has 59.4 percent of original size [2021-05-01 06:56:25,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-05-01 06:56:25,631 INFO L142 QuantifierPusher]: treesize reduction 43, result has 59.4 percent of original size [2021-05-01 06:56:25,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-05-01 06:56:25,634 INFO L142 QuantifierPusher]: treesize reduction 43, result has 59.4 percent of original size [2021-05-01 06:56:25,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-05-01 06:56:25,751 INFO L142 QuantifierPusher]: treesize reduction 43, result has 59.4 percent of original size [2021-05-01 06:56:25,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-05-01 06:56:25,765 INFO L142 QuantifierPusher]: treesize reduction 48, result has 91.7 percent of original size [2021-05-01 06:56:25,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 528 [2021-05-01 06:56:26,139 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 47 [2021-05-01 06:56:26,160 INFO L142 QuantifierPusher]: treesize reduction 123, result has 74.9 percent of original size [2021-05-01 06:56:26,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 368 [2021-05-01 06:56:26,478 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 53 [2021-05-01 06:56:26,484 INFO L142 QuantifierPusher]: treesize reduction 4, result has 98.8 percent of original size [2021-05-01 06:56:26,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 333 [2021-05-01 06:56:26,869 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 72 [2021-05-01 06:56:26,872 INFO L142 QuantifierPusher]: treesize reduction 12, result has 88.7 percent of original size [2021-05-01 06:56:26,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-05-01 06:56:27,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:27,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-05-01 06:56:27,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:27,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-05-01 06:56:27,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:27,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-05-01 06:56:27,508 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2021-05-01 06:56:27,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:27,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-05-01 06:56:27,698 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 41 [2021-05-01 06:56:27,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:27,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-05-01 06:56:27,890 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 41 [2021-05-01 06:56:27,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:27,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-05-01 06:56:28,088 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-05-01 06:56:28,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:28,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-05-01 06:56:28,291 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 41 [2021-05-01 06:56:28,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:28,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-05-01 06:56:28,500 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 41 [2021-05-01 06:56:28,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:28,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-05-01 06:56:28,713 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-05-01 06:56:28,728 INFO L142 QuantifierPusher]: treesize reduction 9, result has 98.0 percent of original size [2021-05-01 06:56:28,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 440 [2021-05-01 06:56:29,275 WARN L205 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 53 [2021-05-01 06:56:29,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:29,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:56:29,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:29,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:56:29,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:29,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:56:29,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:29,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:56:29,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:56:29,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:56:29,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:29,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:56:29,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-05-01 06:56:29,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:56:29,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:29,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:56:29,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-05-01 06:56:29,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:56:29,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:29,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:56:29,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-01 06:56:29,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:56:29,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:29,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:56:29,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-05-01 06:56:29,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:56:29,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:29,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:56:29,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-05-01 06:56:29,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:56:29,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:29,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:56:29,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-01 06:56:29,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:56:29,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:29,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:56:29,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-05-01 06:56:29,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:56:29,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:29,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:56:29,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-05-01 06:56:29,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:56:29,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:29,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:56:29,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:56:29,695 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:56:29,695 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [296871004] [2021-05-01 06:56:29,695 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [296871004] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:56:29,695 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:56:29,696 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [41] imperfect sequences [] total 41 [2021-05-01 06:56:29,696 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145948568] [2021-05-01 06:56:29,696 INFO L460 AbstractCegarLoop]: Interpolant automaton has 41 states [2021-05-01 06:56:29,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:56:29,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-05-01 06:56:29,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=1510, Unknown=0, NotChecked=0, Total=1640 [2021-05-01 06:56:29,697 INFO L87 Difference]: Start difference. First operand 257 states and 272 transitions. Second operand has 41 states, 40 states have (on average 2.325) internal successors, (93), 39 states have internal predecessors, (93), 10 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-05-01 06:56:30,723 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 62 [2021-05-01 06:56:32,099 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2021-05-01 06:56:32,421 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 47 [2021-05-01 06:56:32,718 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2021-05-01 06:56:33,031 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 48 [2021-05-01 06:56:33,347 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2021-05-01 06:56:33,624 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2021-05-01 06:56:33,916 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 48 [2021-05-01 06:56:34,216 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 48 [2021-05-01 06:56:38,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:56:38,288 INFO L93 Difference]: Finished difference Result 308 states and 327 transitions. [2021-05-01 06:56:38,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-05-01 06:56:38,291 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 2.325) internal successors, (93), 39 states have internal predecessors, (93), 10 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Word has length 161 [2021-05-01 06:56:38,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:56:38,292 INFO L225 Difference]: With dead ends: 308 [2021-05-01 06:56:38,292 INFO L226 Difference]: Without dead ends: 306 [2021-05-01 06:56:38,292 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 979 ImplicationChecksByTransitivity, 9425.4ms TimeCoverageRelationStatistics Valid=362, Invalid=4060, Unknown=0, NotChecked=0, Total=4422 [2021-05-01 06:56:38,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2021-05-01 06:56:38,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 265. [2021-05-01 06:56:38,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 235 states have (on average 1.0340425531914894) internal successors, (243), 236 states have internal predecessors, (243), 19 states have call successors, (19), 12 states have call predecessors, (19), 10 states have return successors, (18), 16 states have call predecessors, (18), 18 states have call successors, (18) [2021-05-01 06:56:38,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 280 transitions. [2021-05-01 06:56:38,422 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 280 transitions. Word has length 161 [2021-05-01 06:56:38,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:56:38,422 INFO L480 AbstractCegarLoop]: Abstraction has 265 states and 280 transitions. [2021-05-01 06:56:38,422 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 41 states, 40 states have (on average 2.325) internal successors, (93), 39 states have internal predecessors, (93), 10 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-05-01 06:56:38,422 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 280 transitions. [2021-05-01 06:56:38,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-05-01 06:56:38,423 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:56:38,423 INFO L519 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 8, 8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:56:38,423 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-05-01 06:56:38,423 INFO L428 AbstractCegarLoop]: === Iteration 36 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:56:38,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:56:38,424 INFO L82 PathProgramCache]: Analyzing trace with hash -333795043, now seen corresponding path program 33 times [2021-05-01 06:56:38,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:56:38,424 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [188029646] [2021-05-01 06:56:38,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:56:38,432 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:56:38,433 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:56:39,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:56:39,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:39,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:56:39,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:39,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-05-01 06:56:39,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:39,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-05-01 06:56:39,694 INFO L142 QuantifierPusher]: treesize reduction 10, result has 81.1 percent of original size [2021-05-01 06:56:39,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-05-01 06:56:39,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:39,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-05-01 06:56:39,790 INFO L142 QuantifierPusher]: treesize reduction 10, result has 81.1 percent of original size [2021-05-01 06:56:39,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-05-01 06:56:39,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:39,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-05-01 06:56:39,922 INFO L142 QuantifierPusher]: treesize reduction 10, result has 81.1 percent of original size [2021-05-01 06:56:39,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-05-01 06:56:39,977 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 06:56:39,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 06:56:40,080 INFO L142 QuantifierPusher]: treesize reduction 77, result has 49.3 percent of original size [2021-05-01 06:56:40,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-05-01 06:56:40,194 INFO L142 QuantifierPusher]: treesize reduction 207, result has 58.4 percent of original size [2021-05-01 06:56:40,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 290 [2021-05-01 06:56:40,433 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 43 [2021-05-01 06:56:40,446 INFO L142 QuantifierPusher]: treesize reduction 276, result has 44.5 percent of original size [2021-05-01 06:56:40,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 221 [2021-05-01 06:56:40,526 INFO L142 QuantifierPusher]: treesize reduction 233, result has 61.0 percent of original size [2021-05-01 06:56:40,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 364 [2021-05-01 06:56:40,732 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 38 [2021-05-01 06:56:40,744 INFO L142 QuantifierPusher]: treesize reduction 345, result has 42.0 percent of original size [2021-05-01 06:56:40,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 250 [2021-05-01 06:56:40,830 INFO L142 QuantifierPusher]: treesize reduction 262, result has 57.6 percent of original size [2021-05-01 06:56:40,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 356 [2021-05-01 06:56:41,072 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 39 [2021-05-01 06:56:41,085 INFO L142 QuantifierPusher]: treesize reduction 390, result has 37.2 percent of original size [2021-05-01 06:56:41,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 231 [2021-05-01 06:56:41,155 INFO L142 QuantifierPusher]: treesize reduction 269, result has 37.6 percent of original size [2021-05-01 06:56:41,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 162 [2021-05-01 06:56:41,342 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 45 [2021-05-01 06:56:41,344 INFO L142 QuantifierPusher]: treesize reduction 52, result has 41.6 percent of original size [2021-05-01 06:56:41,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-05-01 06:56:41,420 INFO L142 QuantifierPusher]: treesize reduction 52, result has 43.5 percent of original size [2021-05-01 06:56:41,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-05-01 06:56:41,500 INFO L142 QuantifierPusher]: treesize reduction 79, result has 46.3 percent of original size [2021-05-01 06:56:41,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-05-01 06:56:41,639 INFO L142 QuantifierPusher]: treesize reduction 79, result has 46.3 percent of original size [2021-05-01 06:56:41,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-05-01 06:56:41,759 INFO L142 QuantifierPusher]: treesize reduction 79, result has 46.3 percent of original size [2021-05-01 06:56:41,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-05-01 06:56:41,862 INFO L142 QuantifierPusher]: treesize reduction 79, result has 46.3 percent of original size [2021-05-01 06:56:41,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-05-01 06:56:41,988 INFO L142 QuantifierPusher]: treesize reduction 79, result has 46.3 percent of original size [2021-05-01 06:56:41,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-05-01 06:56:42,095 INFO L142 QuantifierPusher]: treesize reduction 79, result has 46.3 percent of original size [2021-05-01 06:56:42,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-05-01 06:56:42,230 INFO L142 QuantifierPusher]: treesize reduction 80, result has 77.7 percent of original size [2021-05-01 06:56:42,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 278 [2021-05-01 06:56:42,508 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 54 [2021-05-01 06:56:42,511 INFO L142 QuantifierPusher]: treesize reduction 171, result has 39.1 percent of original size [2021-05-01 06:56:42,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 110 [2021-05-01 06:56:42,567 INFO L142 QuantifierPusher]: treesize reduction 66, result has 67.5 percent of original size [2021-05-01 06:56:42,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 137 [2021-05-01 06:56:42,767 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 43 [2021-05-01 06:56:42,771 INFO L142 QuantifierPusher]: treesize reduction 68, result has 48.5 percent of original size [2021-05-01 06:56:42,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-05-01 06:56:42,911 INFO L142 QuantifierPusher]: treesize reduction 55, result has 79.9 percent of original size [2021-05-01 06:56:42,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 219 [2021-05-01 06:56:43,136 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 44 [2021-05-01 06:56:43,140 INFO L142 QuantifierPusher]: treesize reduction 59, result has 61.4 percent of original size [2021-05-01 06:56:43,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-05-01 06:56:43,316 INFO L142 QuantifierPusher]: treesize reduction 49, result has 81.0 percent of original size [2021-05-01 06:56:43,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 209 [2021-05-01 06:56:43,542 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 41 [2021-05-01 06:56:43,545 INFO L142 QuantifierPusher]: treesize reduction 94, result has 32.4 percent of original size [2021-05-01 06:56:43,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-05-01 06:56:43,672 INFO L142 QuantifierPusher]: treesize reduction 37, result has 50.7 percent of original size [2021-05-01 06:56:43,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-05-01 06:56:43,803 INFO L142 QuantifierPusher]: treesize reduction 37, result has 52.6 percent of original size [2021-05-01 06:56:43,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-05-01 06:56:43,812 INFO L142 QuantifierPusher]: treesize reduction 37, result has 52.6 percent of original size [2021-05-01 06:56:43,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-05-01 06:56:43,822 INFO L142 QuantifierPusher]: treesize reduction 92, result has 64.6 percent of original size [2021-05-01 06:56:43,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-05-01 06:56:43,850 INFO L142 QuantifierPusher]: treesize reduction 92, result has 64.6 percent of original size [2021-05-01 06:56:43,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-05-01 06:56:43,879 INFO L142 QuantifierPusher]: treesize reduction 92, result has 64.6 percent of original size [2021-05-01 06:56:43,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-05-01 06:56:43,917 INFO L142 QuantifierPusher]: treesize reduction 92, result has 64.6 percent of original size [2021-05-01 06:56:43,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-05-01 06:56:43,958 INFO L142 QuantifierPusher]: treesize reduction 92, result has 64.6 percent of original size [2021-05-01 06:56:43,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-05-01 06:56:44,013 INFO L142 QuantifierPusher]: treesize reduction 92, result has 64.6 percent of original size [2021-05-01 06:56:44,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-05-01 06:56:44,062 INFO L142 QuantifierPusher]: treesize reduction 92, result has 64.6 percent of original size [2021-05-01 06:56:44,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-05-01 06:56:44,114 INFO L142 QuantifierPusher]: treesize reduction 92, result has 64.6 percent of original size [2021-05-01 06:56:44,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-05-01 06:56:44,193 INFO L142 QuantifierPusher]: treesize reduction 92, result has 64.6 percent of original size [2021-05-01 06:56:44,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-05-01 06:56:44,269 INFO L142 QuantifierPusher]: treesize reduction 92, result has 64.6 percent of original size [2021-05-01 06:56:44,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-05-01 06:56:44,346 INFO L142 QuantifierPusher]: treesize reduction 92, result has 64.6 percent of original size [2021-05-01 06:56:44,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-05-01 06:56:44,434 INFO L142 QuantifierPusher]: treesize reduction 92, result has 64.6 percent of original size [2021-05-01 06:56:44,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-05-01 06:56:44,543 INFO L142 QuantifierPusher]: treesize reduction 98, result has 80.6 percent of original size [2021-05-01 06:56:44,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 408 [2021-05-01 06:56:44,667 INFO L142 QuantifierPusher]: treesize reduction 81, result has 84.9 percent of original size [2021-05-01 06:56:44,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 455 [2021-05-01 06:56:45,105 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 52 [2021-05-01 06:56:45,118 INFO L142 QuantifierPusher]: treesize reduction 53, result has 86.8 percent of original size [2021-05-01 06:56:45,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 349 [2021-05-01 06:56:45,619 WARN L205 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 63 [2021-05-01 06:56:45,626 INFO L142 QuantifierPusher]: treesize reduction 59, result has 71.2 percent of original size [2021-05-01 06:56:45,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 146 [2021-05-01 06:56:45,965 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 51 [2021-05-01 06:56:45,976 INFO L142 QuantifierPusher]: treesize reduction 69, result has 82.8 percent of original size [2021-05-01 06:56:45,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 332 [2021-05-01 06:56:46,472 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 60 [2021-05-01 06:56:46,477 INFO L142 QuantifierPusher]: treesize reduction 65, result has 68.1 percent of original size [2021-05-01 06:56:46,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 139 [2021-05-01 06:56:46,826 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 48 [2021-05-01 06:56:46,835 INFO L142 QuantifierPusher]: treesize reduction 44, result has 88.2 percent of original size [2021-05-01 06:56:46,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 329 [2021-05-01 06:56:47,387 WARN L205 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 55 [2021-05-01 06:56:47,392 INFO L142 QuantifierPusher]: treesize reduction 59, result has 67.0 percent of original size [2021-05-01 06:56:47,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 120 [2021-05-01 06:56:47,701 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 34 [2021-05-01 06:56:47,704 INFO L142 QuantifierPusher]: treesize reduction 30, result has 73.9 percent of original size [2021-05-01 06:56:47,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-05-01 06:56:47,959 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 28 [2021-05-01 06:56:47,962 INFO L142 QuantifierPusher]: treesize reduction 30, result has 74.6 percent of original size [2021-05-01 06:56:47,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 88 [2021-05-01 06:56:48,205 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 30 [2021-05-01 06:56:48,212 INFO L142 QuantifierPusher]: treesize reduction 91, result has 65.3 percent of original size [2021-05-01 06:56:48,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-05-01 06:56:48,562 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 49 [2021-05-01 06:56:48,574 INFO L142 QuantifierPusher]: treesize reduction 91, result has 65.3 percent of original size [2021-05-01 06:56:48,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-05-01 06:56:48,980 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 49 [2021-05-01 06:56:48,988 INFO L142 QuantifierPusher]: treesize reduction 91, result has 65.3 percent of original size [2021-05-01 06:56:48,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-05-01 06:56:49,313 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 49 [2021-05-01 06:56:49,320 INFO L142 QuantifierPusher]: treesize reduction 91, result has 65.3 percent of original size [2021-05-01 06:56:49,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-05-01 06:56:49,589 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 48 [2021-05-01 06:56:49,596 INFO L142 QuantifierPusher]: treesize reduction 91, result has 65.3 percent of original size [2021-05-01 06:56:49,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-05-01 06:56:49,892 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 49 [2021-05-01 06:56:49,902 INFO L142 QuantifierPusher]: treesize reduction 91, result has 65.3 percent of original size [2021-05-01 06:56:49,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-05-01 06:56:50,219 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 48 [2021-05-01 06:56:50,226 INFO L142 QuantifierPusher]: treesize reduction 91, result has 66.0 percent of original size [2021-05-01 06:56:50,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 177 [2021-05-01 06:56:50,531 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 55 [2021-05-01 06:56:50,537 INFO L142 QuantifierPusher]: treesize reduction 91, result has 65.3 percent of original size [2021-05-01 06:56:50,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-05-01 06:56:50,560 INFO L142 QuantifierPusher]: treesize reduction 74, result has 86.8 percent of original size [2021-05-01 06:56:50,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 487 [2021-05-01 06:56:51,200 WARN L205 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 66 [2021-05-01 06:56:51,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:51,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:56:51,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:51,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:56:51,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:51,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:56:51,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:51,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:56:51,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:56:51,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:56:51,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:51,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:56:51,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-05-01 06:56:51,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:56:51,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:51,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:56:51,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-01 06:56:51,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:56:51,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:51,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:56:51,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-05-01 06:56:51,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:56:51,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:51,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:56:51,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-05-01 06:56:51,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:56:51,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:51,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:56:51,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-01 06:56:51,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:56:51,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:51,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:56:51,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-05-01 06:56:51,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:56:51,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:51,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:56:51,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-05-01 06:56:51,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:56:51,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:51,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 06:56:52,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:56:52,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:56:52,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:56:52,025 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:56:52,025 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [188029646] [2021-05-01 06:56:52,025 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [188029646] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:56:52,025 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:56:52,026 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [53] imperfect sequences [] total 53 [2021-05-01 06:56:52,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884589898] [2021-05-01 06:56:52,026 INFO L460 AbstractCegarLoop]: Interpolant automaton has 53 states [2021-05-01 06:56:52,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:56:52,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2021-05-01 06:56:52,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=238, Invalid=2518, Unknown=0, NotChecked=0, Total=2756 [2021-05-01 06:56:52,027 INFO L87 Difference]: Start difference. First operand 265 states and 280 transitions. Second operand has 53 states, 51 states have (on average 2.5098039215686274) internal successors, (128), 52 states have internal predecessors, (128), 9 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-05-01 06:56:53,941 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2021-05-01 06:56:54,599 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 35 [2021-05-01 06:56:54,995 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 30 [2021-05-01 06:56:55,453 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 37 [2021-05-01 06:56:55,858 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 36 [2021-05-01 06:56:56,576 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2021-05-01 06:56:56,973 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 51 [2021-05-01 06:56:57,910 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 42 [2021-05-01 06:56:58,936 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 36 [2021-05-01 06:56:59,528 WARN L205 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 42 [2021-05-01 06:57:00,089 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 40 [2021-05-01 06:57:00,607 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 35 [2021-05-01 06:57:01,220 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 42 [2021-05-01 06:57:01,676 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 43 [2021-05-01 06:57:02,277 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 44 [2021-05-01 06:57:02,775 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 44 [2021-05-01 06:57:03,337 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 58 [2021-05-01 06:57:03,902 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 58 [2021-05-01 06:57:04,474 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 59 [2021-05-01 06:57:04,772 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 36 [2021-05-01 06:57:05,318 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 56 [2021-05-01 06:57:05,665 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 38 [2021-05-01 06:57:06,335 WARN L205 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 51 [2021-05-01 06:57:07,098 WARN L205 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 64 [2021-05-01 06:57:07,344 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 38 [2021-05-01 06:57:07,859 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 46 [2021-05-01 06:57:08,433 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 59 [2021-05-01 06:57:08,711 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 38 [2021-05-01 06:57:09,077 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 47 [2021-05-01 06:57:09,659 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 60 [2021-05-01 06:57:10,107 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 54 [2021-05-01 06:57:10,352 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 35 [2021-05-01 06:57:10,924 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-05-01 06:57:11,665 WARN L205 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 71 [2021-05-01 06:57:12,129 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 55 [2021-05-01 06:57:13,098 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2021-05-01 06:57:13,482 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 55 [2021-05-01 06:57:14,208 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 51 [2021-05-01 06:57:14,498 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 40 [2021-05-01 06:57:15,026 WARN L205 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 46 [2021-05-01 06:57:15,751 WARN L205 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 60 [2021-05-01 06:57:16,116 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 44 [2021-05-01 06:57:16,565 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 41 [2021-05-01 06:57:17,188 WARN L205 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 55 [2021-05-01 06:57:17,646 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 48 [2021-05-01 06:57:18,203 WARN L205 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 78 [2021-05-01 06:57:18,722 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-05-01 06:57:19,352 WARN L205 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 90 [2021-05-01 06:57:19,722 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 49 [2021-05-01 06:57:20,214 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2021-05-01 06:57:20,591 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 45 [2021-05-01 06:57:21,134 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 50 [2021-05-01 06:57:21,534 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 45 [2021-05-01 06:57:22,002 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 50 [2021-05-01 06:57:22,424 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 45 [2021-05-01 06:57:22,895 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 59 [2021-05-01 06:57:23,428 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 64 [2021-05-01 06:57:23,828 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 45 [2021-05-01 06:57:24,270 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 59 [2021-05-01 06:57:24,759 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 64 [2021-05-01 06:57:25,115 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 44 [2021-05-01 06:57:25,516 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 59 [2021-05-01 06:57:26,008 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 64 [2021-05-01 06:57:26,534 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 53 [2021-05-01 06:57:27,068 WARN L205 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 61 [2021-05-01 06:57:28,633 WARN L205 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 56 [2021-05-01 06:57:29,697 WARN L205 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 51 [2021-05-01 06:57:30,577 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 39 [2021-05-01 06:57:31,124 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 52 [2021-05-01 06:57:31,748 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 44 [2021-05-01 06:57:32,133 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 39 [2021-05-01 06:57:32,858 WARN L205 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-05-01 06:57:33,382 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 44 [2021-05-01 06:57:33,849 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 39 [2021-05-01 06:57:34,769 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 44 [2021-05-01 06:57:35,178 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 38 [2021-05-01 06:57:35,539 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 55 [2021-05-01 06:57:35,983 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2021-05-01 06:57:36,360 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 39 [2021-05-01 06:57:36,867 WARN L205 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 56 [2021-05-01 06:57:37,462 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 61 [2021-05-01 06:57:37,839 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 38 [2021-05-01 06:57:38,310 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 55 [2021-05-01 06:57:38,884 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2021-05-01 06:57:39,320 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 56 [2021-05-01 06:57:40,286 WARN L205 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 51 [2021-05-01 06:57:40,929 WARN L205 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 46 [2021-05-01 06:57:41,544 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 53 [2021-05-01 06:57:42,326 WARN L205 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2021-05-01 06:57:42,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:57:42,764 INFO L93 Difference]: Finished difference Result 458 states and 501 transitions. [2021-05-01 06:57:42,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2021-05-01 06:57:42,768 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 51 states have (on average 2.5098039215686274) internal successors, (128), 52 states have internal predecessors, (128), 9 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 161 [2021-05-01 06:57:42,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:57:42,769 INFO L225 Difference]: With dead ends: 458 [2021-05-01 06:57:42,770 INFO L226 Difference]: Without dead ends: 456 [2021-05-01 06:57:42,771 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 19 SyntacticMatches, 19 SemanticMatches, 153 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6819 ImplicationChecksByTransitivity, 47781.2ms TimeCoverageRelationStatistics Valid=2085, Invalid=21785, Unknown=0, NotChecked=0, Total=23870 [2021-05-01 06:57:42,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2021-05-01 06:57:42,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 269. [2021-05-01 06:57:42,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 238 states have (on average 1.0336134453781514) internal successors, (246), 239 states have internal predecessors, (246), 20 states have call successors, (20), 12 states have call predecessors, (20), 10 states have return successors, (19), 17 states have call predecessors, (19), 19 states have call successors, (19) [2021-05-01 06:57:42,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 285 transitions. [2021-05-01 06:57:42,943 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 285 transitions. Word has length 161 [2021-05-01 06:57:42,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:57:42,943 INFO L480 AbstractCegarLoop]: Abstraction has 269 states and 285 transitions. [2021-05-01 06:57:42,943 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 53 states, 51 states have (on average 2.5098039215686274) internal successors, (128), 52 states have internal predecessors, (128), 9 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-05-01 06:57:42,943 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 285 transitions. [2021-05-01 06:57:42,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-05-01 06:57:42,944 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:57:42,945 INFO L519 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:57:42,945 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-05-01 06:57:42,945 INFO L428 AbstractCegarLoop]: === Iteration 37 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:57:42,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:57:42,945 INFO L82 PathProgramCache]: Analyzing trace with hash -2030169907, now seen corresponding path program 34 times [2021-05-01 06:57:42,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:57:42,945 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [15108349] [2021-05-01 06:57:42,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:57:42,956 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:57:42,957 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:57:43,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:57:43,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:57:43,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:57:43,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:57:43,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-05-01 06:57:43,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:57:43,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:57:43,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:57:43,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:57:43,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:57:43,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:57:43,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:57:43,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:57:44,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:57:44,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:57:44,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:57:44,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:57:44,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:57:44,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:57:44,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:57:44,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:57:44,557 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 06:57:44,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-05-01 06:57:44,786 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 23 [2021-05-01 06:57:44,790 INFO L142 QuantifierPusher]: treesize reduction 80, result has 42.0 percent of original size [2021-05-01 06:57:44,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 06:57:44,848 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.5 percent of original size [2021-05-01 06:57:44,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 06:57:45,073 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 32 [2021-05-01 06:57:45,082 INFO L142 QuantifierPusher]: treesize reduction 9, result has 85.9 percent of original size [2021-05-01 06:57:45,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-05-01 06:57:45,259 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 33 [2021-05-01 06:57:45,262 INFO L142 QuantifierPusher]: treesize reduction 9, result has 86.6 percent of original size [2021-05-01 06:57:45,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 06:57:45,453 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 35 [2021-05-01 06:57:45,457 INFO L142 QuantifierPusher]: treesize reduction 9, result has 86.6 percent of original size [2021-05-01 06:57:45,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 06:57:45,461 INFO L142 QuantifierPusher]: treesize reduction 14, result has 83.1 percent of original size [2021-05-01 06:57:45,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-05-01 06:57:45,673 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 35 [2021-05-01 06:57:45,676 INFO L142 QuantifierPusher]: treesize reduction 14, result has 83.1 percent of original size [2021-05-01 06:57:45,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-05-01 06:57:45,681 INFO L142 QuantifierPusher]: treesize reduction 14, result has 83.1 percent of original size [2021-05-01 06:57:45,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-05-01 06:57:45,903 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 36 [2021-05-01 06:57:45,906 INFO L142 QuantifierPusher]: treesize reduction 14, result has 83.1 percent of original size [2021-05-01 06:57:45,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-05-01 06:57:45,910 INFO L142 QuantifierPusher]: treesize reduction 14, result has 83.1 percent of original size [2021-05-01 06:57:45,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-05-01 06:57:46,133 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 36 [2021-05-01 06:57:46,136 INFO L142 QuantifierPusher]: treesize reduction 14, result has 83.1 percent of original size [2021-05-01 06:57:46,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-05-01 06:57:46,140 INFO L142 QuantifierPusher]: treesize reduction 14, result has 83.1 percent of original size [2021-05-01 06:57:46,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-05-01 06:57:46,369 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 38 [2021-05-01 06:57:46,372 INFO L142 QuantifierPusher]: treesize reduction 14, result has 83.1 percent of original size [2021-05-01 06:57:46,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-05-01 06:57:46,376 INFO L142 QuantifierPusher]: treesize reduction 14, result has 83.1 percent of original size [2021-05-01 06:57:46,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-05-01 06:57:46,582 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 38 [2021-05-01 06:57:46,584 INFO L142 QuantifierPusher]: treesize reduction 14, result has 83.1 percent of original size [2021-05-01 06:57:46,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-05-01 06:57:46,588 INFO L142 QuantifierPusher]: treesize reduction 14, result has 83.1 percent of original size [2021-05-01 06:57:46,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-05-01 06:57:46,790 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 36 [2021-05-01 06:57:46,793 INFO L142 QuantifierPusher]: treesize reduction 14, result has 83.1 percent of original size [2021-05-01 06:57:46,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-05-01 06:57:46,797 INFO L142 QuantifierPusher]: treesize reduction 14, result has 83.1 percent of original size [2021-05-01 06:57:46,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-05-01 06:57:47,046 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 36 [2021-05-01 06:57:47,050 INFO L142 QuantifierPusher]: treesize reduction 14, result has 83.1 percent of original size [2021-05-01 06:57:47,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-05-01 06:57:47,054 INFO L142 QuantifierPusher]: treesize reduction 14, result has 83.1 percent of original size [2021-05-01 06:57:47,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-05-01 06:57:47,301 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 35 [2021-05-01 06:57:47,305 INFO L142 QuantifierPusher]: treesize reduction 14, result has 83.1 percent of original size [2021-05-01 06:57:47,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-05-01 06:57:47,310 INFO L142 QuantifierPusher]: treesize reduction 5, result has 97.7 percent of original size [2021-05-01 06:57:47,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 214 [2021-05-01 06:57:47,796 WARN L205 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 56 [2021-05-01 06:57:47,800 INFO L142 QuantifierPusher]: treesize reduction 8, result has 92.9 percent of original size [2021-05-01 06:57:47,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-05-01 06:57:48,126 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 29 [2021-05-01 06:57:48,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:57:48,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-05-01 06:57:48,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:57:48,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-05-01 06:57:48,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:57:48,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-05-01 06:57:48,339 INFO L142 QuantifierPusher]: treesize reduction 5, result has 96.4 percent of original size [2021-05-01 06:57:48,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-05-01 06:57:48,359 INFO L142 QuantifierPusher]: treesize reduction 5, result has 96.4 percent of original size [2021-05-01 06:57:48,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-05-01 06:57:48,380 INFO L142 QuantifierPusher]: treesize reduction 5, result has 96.4 percent of original size [2021-05-01 06:57:48,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-05-01 06:57:48,408 INFO L142 QuantifierPusher]: treesize reduction 5, result has 96.4 percent of original size [2021-05-01 06:57:48,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-05-01 06:57:48,446 INFO L142 QuantifierPusher]: treesize reduction 5, result has 96.4 percent of original size [2021-05-01 06:57:48,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-05-01 06:57:48,479 INFO L142 QuantifierPusher]: treesize reduction 5, result has 96.4 percent of original size [2021-05-01 06:57:48,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-05-01 06:57:48,510 INFO L142 QuantifierPusher]: treesize reduction 5, result has 96.4 percent of original size [2021-05-01 06:57:48,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-05-01 06:57:48,555 INFO L142 QuantifierPusher]: treesize reduction 5, result has 96.4 percent of original size [2021-05-01 06:57:48,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-05-01 06:57:48,591 INFO L142 QuantifierPusher]: treesize reduction 5, result has 96.4 percent of original size [2021-05-01 06:57:48,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-05-01 06:57:48,625 INFO L142 QuantifierPusher]: treesize reduction 5, result has 96.4 percent of original size [2021-05-01 06:57:48,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-05-01 06:57:48,658 INFO L142 QuantifierPusher]: treesize reduction 5, result has 96.4 percent of original size [2021-05-01 06:57:48,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-05-01 06:57:48,696 INFO L142 QuantifierPusher]: treesize reduction 5, result has 96.4 percent of original size [2021-05-01 06:57:48,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-05-01 06:57:48,734 INFO L142 QuantifierPusher]: treesize reduction 5, result has 96.4 percent of original size [2021-05-01 06:57:48,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-05-01 06:57:48,776 INFO L142 QuantifierPusher]: treesize reduction 5, result has 96.4 percent of original size [2021-05-01 06:57:48,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-05-01 06:57:48,819 INFO L142 QuantifierPusher]: treesize reduction 5, result has 96.4 percent of original size [2021-05-01 06:57:48,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-05-01 06:57:48,865 INFO L142 QuantifierPusher]: treesize reduction 5, result has 96.4 percent of original size [2021-05-01 06:57:48,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-05-01 06:57:48,926 INFO L142 QuantifierPusher]: treesize reduction 21, result has 96.6 percent of original size [2021-05-01 06:57:48,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 593 [2021-05-01 06:57:49,417 WARN L205 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 43 [2021-05-01 06:57:49,427 INFO L142 QuantifierPusher]: treesize reduction 39, result has 85.5 percent of original size [2021-05-01 06:57:49,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 230 [2021-05-01 06:57:49,784 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 48 [2021-05-01 06:57:49,787 INFO L142 QuantifierPusher]: treesize reduction 10, result has 88.5 percent of original size [2021-05-01 06:57:49,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-05-01 06:57:49,985 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 29 [2021-05-01 06:57:49,988 INFO L142 QuantifierPusher]: treesize reduction 10, result has 88.9 percent of original size [2021-05-01 06:57:49,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-05-01 06:57:50,197 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 31 [2021-05-01 06:57:50,199 INFO L142 QuantifierPusher]: treesize reduction 10, result has 90.0 percent of original size [2021-05-01 06:57:50,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-05-01 06:57:50,424 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2021-05-01 06:57:50,427 INFO L142 QuantifierPusher]: treesize reduction 10, result has 90.0 percent of original size [2021-05-01 06:57:50,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-05-01 06:57:50,662 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 41 [2021-05-01 06:57:50,665 INFO L142 QuantifierPusher]: treesize reduction 10, result has 90.0 percent of original size [2021-05-01 06:57:50,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-05-01 06:57:50,888 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 41 [2021-05-01 06:57:50,891 INFO L142 QuantifierPusher]: treesize reduction 10, result has 90.0 percent of original size [2021-05-01 06:57:50,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-05-01 06:57:51,133 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-05-01 06:57:51,136 INFO L142 QuantifierPusher]: treesize reduction 10, result has 90.0 percent of original size [2021-05-01 06:57:51,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-05-01 06:57:51,375 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 41 [2021-05-01 06:57:51,378 INFO L142 QuantifierPusher]: treesize reduction 10, result has 90.0 percent of original size [2021-05-01 06:57:51,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-05-01 06:57:51,619 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 41 [2021-05-01 06:57:51,622 INFO L142 QuantifierPusher]: treesize reduction 10, result has 90.0 percent of original size [2021-05-01 06:57:51,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-05-01 06:57:51,870 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 41 [2021-05-01 06:57:51,873 INFO L142 QuantifierPusher]: treesize reduction 10, result has 90.0 percent of original size [2021-05-01 06:57:51,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-05-01 06:57:52,128 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-05-01 06:57:52,140 INFO L142 QuantifierPusher]: treesize reduction 28, result has 93.9 percent of original size [2021-05-01 06:57:52,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 429 [2021-05-01 06:57:52,627 WARN L205 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 53 [2021-05-01 06:57:52,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:57:52,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:57:52,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:57:52,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:57:52,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:57:52,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:57:52,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:57:52,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:57:53,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:57:53,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:57:53,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:57:53,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:57:53,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-05-01 06:57:53,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:57:53,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:57:53,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:57:53,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-05-01 06:57:53,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:57:53,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:57:53,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:57:53,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-01 06:57:53,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:57:53,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:57:53,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:57:53,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-05-01 06:57:53,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:57:53,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:57:53,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:57:53,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-05-01 06:57:53,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:57:53,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:57:53,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:57:53,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-01 06:57:53,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:57:53,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:57:53,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:57:53,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-05-01 06:57:53,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:57:53,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:57:53,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:57:53,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-05-01 06:57:53,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:57:53,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:57:53,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:57:53,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-01 06:57:53,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:57:53,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:57:53,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:57:53,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:57:53,127 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:57:53,127 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [15108349] [2021-05-01 06:57:53,127 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [15108349] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:57:53,127 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:57:53,127 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [43] imperfect sequences [] total 43 [2021-05-01 06:57:53,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025380491] [2021-05-01 06:57:53,128 INFO L460 AbstractCegarLoop]: Interpolant automaton has 43 states [2021-05-01 06:57:53,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:57:53,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-05-01 06:57:53,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=1667, Unknown=0, NotChecked=0, Total=1806 [2021-05-01 06:57:53,129 INFO L87 Difference]: Start difference. First operand 269 states and 285 transitions. Second operand has 43 states, 42 states have (on average 2.9285714285714284) internal successors, (123), 41 states have internal predecessors, (123), 11 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2021-05-01 06:57:55,203 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 45 [2021-05-01 06:57:56,559 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 32 [2021-05-01 06:57:57,003 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 28 [2021-05-01 06:57:57,444 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 28 [2021-05-01 06:57:58,288 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 32 [2021-05-01 06:57:58,727 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 31 [2021-05-01 06:57:59,172 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 28 [2021-05-01 06:58:00,068 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 44 [2021-05-01 06:58:00,736 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 49 [2021-05-01 06:58:01,323 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 49 [2021-05-01 06:58:01,838 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 49 [2021-05-01 06:58:02,071 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 38 [2021-05-01 06:58:02,624 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 45 [2021-05-01 06:58:02,962 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 40 [2021-05-01 06:58:03,558 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 46 [2021-05-01 06:58:03,903 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 40 [2021-05-01 06:58:04,396 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 49 [2021-05-01 06:58:04,656 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 40 [2021-05-01 06:58:05,139 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 49 [2021-05-01 06:58:05,407 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 39 [2021-05-01 06:58:05,913 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 48 [2021-05-01 06:58:06,189 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 40 [2021-05-01 06:58:06,609 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2021-05-01 06:58:06,863 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 40 [2021-05-01 06:58:07,403 WARN L205 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 55 [2021-05-01 06:58:07,984 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 40 [2021-05-01 06:58:08,351 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2021-05-01 06:58:08,803 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 40 [2021-05-01 06:58:09,398 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 36 [2021-05-01 06:58:10,114 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 44 [2021-05-01 06:58:10,730 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 43 [2021-05-01 06:58:11,357 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 43 [2021-05-01 06:58:12,057 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 40 [2021-05-01 06:58:12,747 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 39 [2021-05-01 06:58:13,426 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 43 [2021-05-01 06:58:14,089 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 43 [2021-05-01 06:58:14,774 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 42 [2021-05-01 06:58:15,596 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2021-05-01 06:58:16,697 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 34 [2021-05-01 06:58:17,056 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 32 [2021-05-01 06:58:17,407 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 34 [2021-05-01 06:58:17,753 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 33 [2021-05-01 06:58:18,102 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 34 [2021-05-01 06:58:18,455 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 34 [2021-05-01 06:58:18,735 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 34 [2021-05-01 06:58:19,001 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 33 [2021-05-01 06:58:19,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:58:19,594 INFO L93 Difference]: Finished difference Result 320 states and 339 transitions. [2021-05-01 06:58:19,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-05-01 06:58:19,599 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 42 states have (on average 2.9285714285714284) internal successors, (123), 41 states have internal predecessors, (123), 11 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Word has length 169 [2021-05-01 06:58:19,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:58:19,600 INFO L225 Difference]: With dead ends: 320 [2021-05-01 06:58:19,600 INFO L226 Difference]: Without dead ends: 189 [2021-05-01 06:58:19,601 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 30 SyntacticMatches, 19 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2245 ImplicationChecksByTransitivity, 23656.0ms TimeCoverageRelationStatistics Valid=679, Invalid=8827, Unknown=0, NotChecked=0, Total=9506 [2021-05-01 06:58:19,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2021-05-01 06:58:19,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 178. [2021-05-01 06:58:19,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 155 states have (on average 1.0258064516129033) internal successors, (159), 155 states have internal predecessors, (159), 13 states have call successors, (13), 11 states have call predecessors, (13), 9 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2021-05-01 06:58:19,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 184 transitions. [2021-05-01 06:58:19,688 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 184 transitions. Word has length 169 [2021-05-01 06:58:19,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:58:19,688 INFO L480 AbstractCegarLoop]: Abstraction has 178 states and 184 transitions. [2021-05-01 06:58:19,688 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 43 states, 42 states have (on average 2.9285714285714284) internal successors, (123), 41 states have internal predecessors, (123), 11 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2021-05-01 06:58:19,688 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 184 transitions. [2021-05-01 06:58:19,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-05-01 06:58:19,689 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:58:19,689 INFO L519 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:58:19,689 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-05-01 06:58:19,689 INFO L428 AbstractCegarLoop]: === Iteration 38 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:58:19,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:58:19,690 INFO L82 PathProgramCache]: Analyzing trace with hash -1805600265, now seen corresponding path program 35 times [2021-05-01 06:58:19,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:58:19,690 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1988619293] [2021-05-01 06:58:19,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:58:19,699 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:58:19,700 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:58:20,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:58:20,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:20,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:58:20,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:20,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-05-01 06:58:20,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:20,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:58:20,426 INFO L142 QuantifierPusher]: treesize reduction 10, result has 82.5 percent of original size [2021-05-01 06:58:20,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:58:20,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:20,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:58:20,638 INFO L142 QuantifierPusher]: treesize reduction 10, result has 82.5 percent of original size [2021-05-01 06:58:20,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:58:20,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:20,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:58:20,900 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 21 [2021-05-01 06:58:20,903 INFO L142 QuantifierPusher]: treesize reduction 10, result has 82.5 percent of original size [2021-05-01 06:58:20,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:58:21,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:21,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:58:21,180 INFO L142 QuantifierPusher]: treesize reduction 23, result has 77.9 percent of original size [2021-05-01 06:58:21,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-05-01 06:58:21,525 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 35 [2021-05-01 06:58:21,530 INFO L142 QuantifierPusher]: treesize reduction 80, result has 45.9 percent of original size [2021-05-01 06:58:21,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-05-01 06:58:21,704 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 21 [2021-05-01 06:58:21,710 INFO L142 QuantifierPusher]: treesize reduction 57, result has 71.2 percent of original size [2021-05-01 06:58:21,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 141 [2021-05-01 06:58:22,066 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 34 [2021-05-01 06:58:22,072 INFO L142 QuantifierPusher]: treesize reduction 128, result has 38.5 percent of original size [2021-05-01 06:58:22,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-05-01 06:58:22,288 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 21 [2021-05-01 06:58:22,294 INFO L142 QuantifierPusher]: treesize reduction 40, result has 79.1 percent of original size [2021-05-01 06:58:22,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 151 [2021-05-01 06:58:22,715 WARN L205 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 35 [2021-05-01 06:58:22,721 INFO L142 QuantifierPusher]: treesize reduction 56, result has 71.6 percent of original size [2021-05-01 06:58:22,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 141 [2021-05-01 06:58:23,073 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 21 [2021-05-01 06:58:23,077 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.0 percent of original size [2021-05-01 06:58:23,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-01 06:58:23,235 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.0 percent of original size [2021-05-01 06:58:23,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-01 06:58:23,239 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.0 percent of original size [2021-05-01 06:58:23,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-01 06:58:23,243 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.0 percent of original size [2021-05-01 06:58:23,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-01 06:58:23,247 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.0 percent of original size [2021-05-01 06:58:23,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-01 06:58:23,251 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.0 percent of original size [2021-05-01 06:58:23,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-01 06:58:23,255 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.0 percent of original size [2021-05-01 06:58:23,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-01 06:58:23,259 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.0 percent of original size [2021-05-01 06:58:23,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-01 06:58:23,262 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.0 percent of original size [2021-05-01 06:58:23,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-01 06:58:23,266 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.0 percent of original size [2021-05-01 06:58:23,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-01 06:58:23,270 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.0 percent of original size [2021-05-01 06:58:23,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-01 06:58:23,274 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.0 percent of original size [2021-05-01 06:58:23,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-01 06:58:23,278 INFO L142 QuantifierPusher]: treesize reduction 16, result has 68.0 percent of original size [2021-05-01 06:58:23,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-05-01 06:58:23,282 INFO L142 QuantifierPusher]: treesize reduction 16, result has 68.0 percent of original size [2021-05-01 06:58:23,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-05-01 06:58:23,286 INFO L142 QuantifierPusher]: treesize reduction 33, result has 59.8 percent of original size [2021-05-01 06:58:23,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 06:58:23,307 INFO L142 QuantifierPusher]: treesize reduction 33, result has 59.8 percent of original size [2021-05-01 06:58:23,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 06:58:23,328 INFO L142 QuantifierPusher]: treesize reduction 33, result has 59.8 percent of original size [2021-05-01 06:58:23,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 06:58:23,354 INFO L142 QuantifierPusher]: treesize reduction 33, result has 59.8 percent of original size [2021-05-01 06:58:23,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 06:58:23,381 INFO L142 QuantifierPusher]: treesize reduction 33, result has 59.8 percent of original size [2021-05-01 06:58:23,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 06:58:23,411 INFO L142 QuantifierPusher]: treesize reduction 33, result has 59.8 percent of original size [2021-05-01 06:58:23,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 06:58:23,441 INFO L142 QuantifierPusher]: treesize reduction 33, result has 59.8 percent of original size [2021-05-01 06:58:23,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 06:58:23,476 INFO L142 QuantifierPusher]: treesize reduction 33, result has 59.8 percent of original size [2021-05-01 06:58:23,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 06:58:23,509 INFO L142 QuantifierPusher]: treesize reduction 33, result has 59.8 percent of original size [2021-05-01 06:58:23,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 06:58:23,546 INFO L142 QuantifierPusher]: treesize reduction 33, result has 59.8 percent of original size [2021-05-01 06:58:23,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 06:58:23,589 INFO L142 QuantifierPusher]: treesize reduction 33, result has 59.8 percent of original size [2021-05-01 06:58:23,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 06:58:23,636 INFO L142 QuantifierPusher]: treesize reduction 33, result has 59.8 percent of original size [2021-05-01 06:58:23,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 06:58:23,681 INFO L142 QuantifierPusher]: treesize reduction 33, result has 59.8 percent of original size [2021-05-01 06:58:23,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 06:58:23,731 INFO L142 QuantifierPusher]: treesize reduction 33, result has 59.8 percent of original size [2021-05-01 06:58:23,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 06:58:23,792 INFO L142 QuantifierPusher]: treesize reduction 65, result has 89.5 percent of original size [2021-05-01 06:58:23,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 552 [2021-05-01 06:58:23,932 INFO L142 QuantifierPusher]: treesize reduction 184, result has 65.9 percent of original size [2021-05-01 06:58:23,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 355 [2021-05-01 06:58:24,476 WARN L205 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 49 [2021-05-01 06:58:24,486 INFO L142 QuantifierPusher]: treesize reduction 41, result has 88.7 percent of original size [2021-05-01 06:58:24,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 322 [2021-05-01 06:58:25,107 WARN L205 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 60 [2021-05-01 06:58:25,113 INFO L142 QuantifierPusher]: treesize reduction 26, result has 83.6 percent of original size [2021-05-01 06:58:25,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-05-01 06:58:25,614 WARN L205 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 50 [2021-05-01 06:58:25,623 INFO L142 QuantifierPusher]: treesize reduction 14, result has 95.8 percent of original size [2021-05-01 06:58:25,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 321 [2021-05-01 06:58:26,209 WARN L205 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 56 [2021-05-01 06:58:26,215 INFO L142 QuantifierPusher]: treesize reduction 29, result has 79.4 percent of original size [2021-05-01 06:58:26,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-05-01 06:58:26,625 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 35 [2021-05-01 06:58:26,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:26,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-05-01 06:58:26,928 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 29 [2021-05-01 06:58:26,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:26,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-05-01 06:58:27,229 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 31 [2021-05-01 06:58:27,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:27,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-05-01 06:58:27,546 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2021-05-01 06:58:27,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:27,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-05-01 06:58:27,862 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 41 [2021-05-01 06:58:27,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:27,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-05-01 06:58:28,179 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 41 [2021-05-01 06:58:28,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:28,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-05-01 06:58:28,514 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-05-01 06:58:28,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:28,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-05-01 06:58:28,852 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 41 [2021-05-01 06:58:28,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:28,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-05-01 06:58:29,191 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 41 [2021-05-01 06:58:29,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:29,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-05-01 06:58:29,530 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-05-01 06:58:29,542 INFO L142 QuantifierPusher]: treesize reduction 18, result has 96.0 percent of original size [2021-05-01 06:58:29,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 431 [2021-05-01 06:58:30,285 WARN L205 SmtUtils]: Spent 517.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 54 [2021-05-01 06:58:30,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:30,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:58:30,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:30,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:58:30,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:30,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:58:30,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:30,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:58:30,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:58:30,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:58:30,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:30,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:58:30,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-05-01 06:58:30,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:58:30,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:30,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:58:30,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-01 06:58:30,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:58:30,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:30,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:58:30,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-05-01 06:58:30,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:58:30,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:30,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:58:30,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-05-01 06:58:30,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:58:30,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:30,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:58:30,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-01 06:58:30,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:58:30,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:30,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:58:30,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-05-01 06:58:30,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:58:30,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:30,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:58:30,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-05-01 06:58:30,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:58:30,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:30,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:58:30,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-01 06:58:30,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:58:30,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:30,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:58:30,807 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-05-01 06:58:30,808 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:58:30,808 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1988619293] [2021-05-01 06:58:30,808 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1988619293] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:58:30,808 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:58:30,808 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2021-05-01 06:58:30,808 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055160043] [2021-05-01 06:58:30,808 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-05-01 06:58:30,808 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:58:30,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-05-01 06:58:30,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1147, Unknown=0, NotChecked=0, Total=1260 [2021-05-01 06:58:30,809 INFO L87 Difference]: Start difference. First operand 178 states and 184 transitions. Second operand has 36 states, 35 states have (on average 2.8) internal successors, (98), 34 states have internal predecessors, (98), 10 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-05-01 06:58:36,168 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 37 [2021-05-01 06:58:36,758 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 39 [2021-05-01 06:58:37,358 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 39 [2021-05-01 06:58:37,943 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 39 [2021-05-01 06:58:38,502 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 38 [2021-05-01 06:58:39,037 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 39 [2021-05-01 06:58:39,598 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 39 [2021-05-01 06:58:40,221 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 39 [2021-05-01 06:58:40,799 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 32 [2021-05-01 06:58:41,300 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 32 [2021-05-01 06:58:42,680 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 32 [2021-05-01 06:58:43,265 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 34 [2021-05-01 06:58:43,868 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 34 [2021-05-01 06:58:44,465 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 33 [2021-05-01 06:58:45,064 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 34 [2021-05-01 06:58:45,671 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 34 [2021-05-01 06:58:46,273 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 33 [2021-05-01 06:58:48,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:58:48,435 INFO L93 Difference]: Finished difference Result 195 states and 201 transitions. [2021-05-01 06:58:48,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-05-01 06:58:48,440 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 2.8) internal successors, (98), 34 states have internal predecessors, (98), 10 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Word has length 169 [2021-05-01 06:58:48,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:58:48,441 INFO L225 Difference]: With dead ends: 195 [2021-05-01 06:58:48,441 INFO L226 Difference]: Without dead ends: 193 [2021-05-01 06:58:48,442 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 32 SyntacticMatches, 15 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 635 ImplicationChecksByTransitivity, 15975.5ms TimeCoverageRelationStatistics Valid=253, Invalid=2939, Unknown=0, NotChecked=0, Total=3192 [2021-05-01 06:58:48,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2021-05-01 06:58:48,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 182. [2021-05-01 06:58:48,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 158 states have (on average 1.0253164556962024) internal successors, (162), 158 states have internal predecessors, (162), 13 states have call successors, (13), 12 states have call predecessors, (13), 10 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2021-05-01 06:58:48,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 187 transitions. [2021-05-01 06:58:48,555 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 187 transitions. Word has length 169 [2021-05-01 06:58:48,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:58:48,555 INFO L480 AbstractCegarLoop]: Abstraction has 182 states and 187 transitions. [2021-05-01 06:58:48,555 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 36 states, 35 states have (on average 2.8) internal successors, (98), 34 states have internal predecessors, (98), 10 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-05-01 06:58:48,555 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 187 transitions. [2021-05-01 06:58:48,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2021-05-01 06:58:48,556 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:58:48,556 INFO L519 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:58:48,556 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-05-01 06:58:48,557 INFO L428 AbstractCegarLoop]: === Iteration 39 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:58:48,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:58:48,557 INFO L82 PathProgramCache]: Analyzing trace with hash 1480744363, now seen corresponding path program 36 times [2021-05-01 06:58:48,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:58:48,557 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2112069628] [2021-05-01 06:58:48,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:58:48,570 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:58:48,571 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:58:49,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:58:49,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:49,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:58:49,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:49,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-05-01 06:58:49,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:49,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:58:49,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:49,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:58:49,630 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 21 [2021-05-01 06:58:49,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:49,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:58:49,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:49,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:58:49,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:49,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:58:50,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:50,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:58:50,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:50,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:58:50,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:50,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:58:50,420 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 21 [2021-05-01 06:58:50,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:50,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 06:58:50,579 INFO L142 QuantifierPusher]: treesize reduction 14, result has 83.5 percent of original size [2021-05-01 06:58:50,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-05-01 06:58:50,890 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 35 [2021-05-01 06:58:50,896 INFO L142 QuantifierPusher]: treesize reduction 26, result has 78.9 percent of original size [2021-05-01 06:58:50,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-05-01 06:58:51,223 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 21 [2021-05-01 06:58:51,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:51,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-01 06:58:51,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:51,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-01 06:58:51,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:51,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-01 06:58:51,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:51,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-01 06:58:51,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:51,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-01 06:58:51,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:51,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-01 06:58:51,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:51,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-01 06:58:51,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:51,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-01 06:58:51,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:51,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-01 06:58:51,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:51,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-01 06:58:51,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:51,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-01 06:58:51,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:51,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-01 06:58:51,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:51,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-05-01 06:58:51,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:51,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-05-01 06:58:51,425 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size [2021-05-01 06:58:51,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-05-01 06:58:51,447 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size [2021-05-01 06:58:51,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-05-01 06:58:51,469 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size [2021-05-01 06:58:51,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-05-01 06:58:51,493 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size [2021-05-01 06:58:51,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-05-01 06:58:51,521 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size [2021-05-01 06:58:51,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-05-01 06:58:51,550 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size [2021-05-01 06:58:51,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-05-01 06:58:51,582 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size [2021-05-01 06:58:51,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-05-01 06:58:51,622 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size [2021-05-01 06:58:51,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-05-01 06:58:51,667 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size [2021-05-01 06:58:51,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-05-01 06:58:51,709 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size [2021-05-01 06:58:51,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-05-01 06:58:51,751 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size [2021-05-01 06:58:51,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-05-01 06:58:51,799 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size [2021-05-01 06:58:51,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-05-01 06:58:51,846 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size [2021-05-01 06:58:51,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-05-01 06:58:51,899 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size [2021-05-01 06:58:51,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-05-01 06:58:51,951 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size [2021-05-01 06:58:51,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-05-01 06:58:52,008 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size [2021-05-01 06:58:52,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-05-01 06:58:52,069 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size [2021-05-01 06:58:52,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-05-01 06:58:52,135 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size [2021-05-01 06:58:52,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-05-01 06:58:52,206 INFO L142 QuantifierPusher]: treesize reduction 23, result has 95.9 percent of original size [2021-05-01 06:58:52,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 538 [2021-05-01 06:58:52,460 INFO L142 QuantifierPusher]: treesize reduction 41, result has 87.2 percent of original size [2021-05-01 06:58:52,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 280 [2021-05-01 06:58:52,949 WARN L205 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 46 [2021-05-01 06:58:52,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:52,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-05-01 06:58:53,189 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 26 [2021-05-01 06:58:53,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:53,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-05-01 06:58:53,448 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 28 [2021-05-01 06:58:53,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:53,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-05-01 06:58:53,725 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 38 [2021-05-01 06:58:53,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:53,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-05-01 06:58:54,007 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2021-05-01 06:58:54,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:54,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-05-01 06:58:54,289 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2021-05-01 06:58:54,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:54,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-05-01 06:58:54,586 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2021-05-01 06:58:54,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:54,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-05-01 06:58:54,910 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2021-05-01 06:58:54,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:54,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-05-01 06:58:55,229 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2021-05-01 06:58:55,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:55,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-05-01 06:58:55,557 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2021-05-01 06:58:55,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:55,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-05-01 06:58:55,897 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2021-05-01 06:58:55,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:55,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-05-01 06:58:56,243 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2021-05-01 06:58:56,254 INFO L142 QuantifierPusher]: treesize reduction 9, result has 98.0 percent of original size [2021-05-01 06:58:56,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 432 [2021-05-01 06:58:57,132 WARN L205 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 50 [2021-05-01 06:58:57,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:57,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:58:57,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:57,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:58:57,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:57,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:58:57,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:57,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:58:57,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:58:57,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:58:57,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:57,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:58:57,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-05-01 06:58:57,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:58:57,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:57,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:58:57,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-01 06:58:57,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:58:57,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:57,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:58:57,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-05-01 06:58:57,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:58:57,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:57,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:58:57,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-05-01 06:58:57,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:58:57,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:57,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:58:57,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-01 06:58:57,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:58:57,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:57,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:58:57,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-05-01 06:58:57,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:58:57,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:57,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:58:57,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-05-01 06:58:57,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:58:57,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:57,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:58:57,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-01 06:58:57,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:58:57,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:57,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:58:57,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-05-01 06:58:57,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:58:57,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:57,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:58:57,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-05-01 06:58:57,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:58:57,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:58:57,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:58:57,893 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-05-01 06:58:57,894 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:58:57,894 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2112069628] [2021-05-01 06:58:57,894 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [2112069628] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:58:57,894 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:58:57,894 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2021-05-01 06:58:57,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622513351] [2021-05-01 06:58:57,895 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-05-01 06:58:57,895 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:58:57,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-05-01 06:58:57,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=916, Unknown=0, NotChecked=0, Total=992 [2021-05-01 06:58:57,895 INFO L87 Difference]: Start difference. First operand 182 states and 187 transitions. Second operand has 32 states, 31 states have (on average 3.3548387096774195) internal successors, (104), 30 states have internal predecessors, (104), 12 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2021-05-01 06:59:03,271 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 38 [2021-05-01 06:59:04,000 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 40 [2021-05-01 06:59:04,662 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 40 [2021-05-01 06:59:05,263 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 40 [2021-05-01 06:59:05,941 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 39 [2021-05-01 06:59:06,611 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 40 [2021-05-01 06:59:07,266 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 40 [2021-05-01 06:59:07,902 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 40 [2021-05-01 06:59:08,507 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 40 [2021-05-01 06:59:09,193 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 40 [2021-05-01 06:59:09,689 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-05-01 06:59:11,758 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 34 [2021-05-01 06:59:12,409 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 34 [2021-05-01 06:59:13,061 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 34 [2021-05-01 06:59:13,704 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 33 [2021-05-01 06:59:14,355 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 34 [2021-05-01 06:59:15,043 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 34 [2021-05-01 06:59:15,713 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 34 [2021-05-01 06:59:16,412 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 33 [2021-05-01 06:59:17,100 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 33 [2021-05-01 06:59:17,916 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2021-05-01 06:59:19,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:59:19,091 INFO L93 Difference]: Finished difference Result 199 states and 204 transitions. [2021-05-01 06:59:19,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-05-01 06:59:19,098 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 3.3548387096774195) internal successors, (104), 30 states have internal predecessors, (104), 12 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Word has length 185 [2021-05-01 06:59:19,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:59:19,099 INFO L225 Difference]: With dead ends: 199 [2021-05-01 06:59:19,099 INFO L226 Difference]: Without dead ends: 197 [2021-05-01 06:59:19,100 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 36 SyntacticMatches, 19 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 454 ImplicationChecksByTransitivity, 16078.2ms TimeCoverageRelationStatistics Valid=235, Invalid=3071, Unknown=0, NotChecked=0, Total=3306 [2021-05-01 06:59:19,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-05-01 06:59:19,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 190. [2021-05-01 06:59:19,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 164 states have (on average 1.024390243902439) internal successors, (168), 164 states have internal predecessors, (168), 14 states have call successors, (14), 13 states have call predecessors, (14), 11 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2021-05-01 06:59:19,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 195 transitions. [2021-05-01 06:59:19,225 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 195 transitions. Word has length 185 [2021-05-01 06:59:19,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:59:19,226 INFO L480 AbstractCegarLoop]: Abstraction has 190 states and 195 transitions. [2021-05-01 06:59:19,226 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 32 states, 31 states have (on average 3.3548387096774195) internal successors, (104), 30 states have internal predecessors, (104), 12 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2021-05-01 06:59:19,226 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 195 transitions. [2021-05-01 06:59:19,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-05-01 06:59:19,227 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:59:19,227 INFO L519 BasicCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:59:19,228 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-05-01 06:59:19,228 INFO L428 AbstractCegarLoop]: === Iteration 40 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:59:19,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:59:19,228 INFO L82 PathProgramCache]: Analyzing trace with hash 571603077, now seen corresponding path program 37 times [2021-05-01 06:59:19,229 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:59:19,229 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [934065881] [2021-05-01 06:59:19,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:59:19,240 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:59:19,241 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:59:19,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:59:19,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:19,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:59:19,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:19,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 06:59:19,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:19,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:59:19,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:19,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:59:19,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:19,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:59:19,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:19,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:59:19,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:19,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:59:19,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:19,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:59:19,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:19,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:59:19,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:19,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:59:19,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:19,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:59:19,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:19,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:59:19,859 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-05-01 06:59:19,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 06:59:19,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:19,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 06:59:20,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:20,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 06:59:20,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:20,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 06:59:20,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:20,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 06:59:20,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:20,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 06:59:20,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:20,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 06:59:20,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:20,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 06:59:20,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:20,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 06:59:20,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:20,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 06:59:20,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:20,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 06:59:20,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:20,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 06:59:20,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:20,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 06:59:21,048 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.2 percent of original size [2021-05-01 06:59:21,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-05-01 06:59:21,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:21,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:59:21,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:59:21,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:59:21,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:21,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:59:21,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-05-01 06:59:21,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:59:21,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:21,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:59:21,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-01 06:59:21,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:59:21,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:21,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:59:21,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-05-01 06:59:21,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:59:21,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:21,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:59:21,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-05-01 06:59:21,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:59:21,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:21,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:59:21,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-01 06:59:21,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:59:21,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:21,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:59:21,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-05-01 06:59:21,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:59:21,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:21,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:59:21,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-05-01 06:59:21,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:59:21,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:21,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:59:21,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-01 06:59:21,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:59:21,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:21,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:59:21,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-05-01 06:59:21,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:59:21,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:21,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:59:21,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-05-01 06:59:21,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:59:21,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:21,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:59:21,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-05-01 06:59:21,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:59:21,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:21,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:59:21,516 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-05-01 06:59:21,516 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:59:21,516 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [934065881] [2021-05-01 06:59:21,516 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [934065881] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:59:21,516 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:59:21,516 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-01 06:59:21,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829361750] [2021-05-01 06:59:21,517 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-01 06:59:21,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:59:21,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-01 06:59:21,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2021-05-01 06:59:21,517 INFO L87 Difference]: Start difference. First operand 190 states and 195 transitions. Second operand has 28 states, 28 states have (on average 3.107142857142857) internal successors, (87), 27 states have internal predecessors, (87), 13 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-05-01 06:59:32,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:59:32,759 INFO L93 Difference]: Finished difference Result 432 states and 458 transitions. [2021-05-01 06:59:32,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-05-01 06:59:32,766 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.107142857142857) internal successors, (87), 27 states have internal predecessors, (87), 13 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Word has length 193 [2021-05-01 06:59:32,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:59:32,767 INFO L225 Difference]: With dead ends: 432 [2021-05-01 06:59:32,767 INFO L226 Difference]: Without dead ends: 209 [2021-05-01 06:59:32,768 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 2835.7ms TimeCoverageRelationStatistics Valid=142, Invalid=1340, Unknown=0, NotChecked=0, Total=1482 [2021-05-01 06:59:32,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2021-05-01 06:59:32,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 198. [2021-05-01 06:59:32,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 172 states have (on average 1.0232558139534884) internal successors, (176), 172 states have internal predecessors, (176), 14 states have call successors, (14), 13 states have call predecessors, (14), 11 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2021-05-01 06:59:32,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 203 transitions. [2021-05-01 06:59:32,919 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 203 transitions. Word has length 193 [2021-05-01 06:59:32,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:59:32,920 INFO L480 AbstractCegarLoop]: Abstraction has 198 states and 203 transitions. [2021-05-01 06:59:32,920 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 3.107142857142857) internal successors, (87), 27 states have internal predecessors, (87), 13 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-05-01 06:59:32,920 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 203 transitions. [2021-05-01 06:59:32,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-05-01 06:59:32,921 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:59:32,921 INFO L519 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:59:32,921 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-05-01 06:59:32,921 INFO L428 AbstractCegarLoop]: === Iteration 41 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:59:32,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:59:32,922 INFO L82 PathProgramCache]: Analyzing trace with hash 2130342205, now seen corresponding path program 38 times [2021-05-01 06:59:32,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:59:32,922 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [496665803] [2021-05-01 06:59:32,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:59:32,934 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:59:32,935 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:59:33,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:59:33,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:33,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:59:33,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:33,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-05-01 06:59:33,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:33,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-05-01 06:59:34,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:34,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-05-01 06:59:34,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:34,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-05-01 06:59:34,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:34,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-05-01 06:59:34,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:34,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-05-01 06:59:34,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:34,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-05-01 06:59:34,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:34,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-05-01 06:59:34,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:34,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-05-01 06:59:34,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:34,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-05-01 06:59:34,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:34,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-05-01 06:59:35,136 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-05-01 06:59:35,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-05-01 06:59:35,323 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 22 [2021-05-01 06:59:35,328 INFO L142 QuantifierPusher]: treesize reduction 104, result has 48.3 percent of original size [2021-05-01 06:59:35,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-05-01 06:59:35,598 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 38 [2021-05-01 06:59:35,608 INFO L142 QuantifierPusher]: treesize reduction 110, result has 73.9 percent of original size [2021-05-01 06:59:35,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 311 [2021-05-01 06:59:36,205 WARN L205 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 54 [2021-05-01 06:59:36,209 INFO L142 QuantifierPusher]: treesize reduction 18, result has 75.3 percent of original size [2021-05-01 06:59:36,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-05-01 06:59:36,476 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 33 [2021-05-01 06:59:36,480 INFO L142 QuantifierPusher]: treesize reduction 18, result has 76.3 percent of original size [2021-05-01 06:59:36,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 06:59:36,770 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 35 [2021-05-01 06:59:36,774 INFO L142 QuantifierPusher]: treesize reduction 18, result has 76.3 percent of original size [2021-05-01 06:59:36,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 06:59:36,779 INFO L142 QuantifierPusher]: treesize reduction 23, result has 75.0 percent of original size [2021-05-01 06:59:36,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-05-01 06:59:37,093 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 35 [2021-05-01 06:59:37,098 INFO L142 QuantifierPusher]: treesize reduction 23, result has 75.0 percent of original size [2021-05-01 06:59:37,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-05-01 06:59:37,103 INFO L142 QuantifierPusher]: treesize reduction 23, result has 75.0 percent of original size [2021-05-01 06:59:37,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-05-01 06:59:37,420 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 36 [2021-05-01 06:59:37,424 INFO L142 QuantifierPusher]: treesize reduction 23, result has 75.0 percent of original size [2021-05-01 06:59:37,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-05-01 06:59:37,429 INFO L142 QuantifierPusher]: treesize reduction 23, result has 75.0 percent of original size [2021-05-01 06:59:37,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-05-01 06:59:37,753 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2021-05-01 06:59:37,757 INFO L142 QuantifierPusher]: treesize reduction 23, result has 75.0 percent of original size [2021-05-01 06:59:37,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-05-01 06:59:37,762 INFO L142 QuantifierPusher]: treesize reduction 23, result has 75.0 percent of original size [2021-05-01 06:59:37,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-05-01 06:59:38,096 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 35 [2021-05-01 06:59:38,100 INFO L142 QuantifierPusher]: treesize reduction 23, result has 75.0 percent of original size [2021-05-01 06:59:38,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-05-01 06:59:38,106 INFO L142 QuantifierPusher]: treesize reduction 23, result has 75.0 percent of original size [2021-05-01 06:59:38,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-05-01 06:59:38,449 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 36 [2021-05-01 06:59:38,454 INFO L142 QuantifierPusher]: treesize reduction 23, result has 75.0 percent of original size [2021-05-01 06:59:38,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-05-01 06:59:38,459 INFO L142 QuantifierPusher]: treesize reduction 23, result has 75.0 percent of original size [2021-05-01 06:59:38,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-05-01 06:59:38,810 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 38 [2021-05-01 06:59:38,814 INFO L142 QuantifierPusher]: treesize reduction 23, result has 75.0 percent of original size [2021-05-01 06:59:38,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-05-01 06:59:38,819 INFO L142 QuantifierPusher]: treesize reduction 23, result has 75.0 percent of original size [2021-05-01 06:59:38,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-05-01 06:59:39,184 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 39 [2021-05-01 06:59:39,188 INFO L142 QuantifierPusher]: treesize reduction 23, result has 75.0 percent of original size [2021-05-01 06:59:39,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-05-01 06:59:39,192 INFO L142 QuantifierPusher]: treesize reduction 23, result has 75.0 percent of original size [2021-05-01 06:59:39,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-05-01 06:59:39,545 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 36 [2021-05-01 06:59:39,549 INFO L142 QuantifierPusher]: treesize reduction 23, result has 75.0 percent of original size [2021-05-01 06:59:39,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-05-01 06:59:39,554 INFO L142 QuantifierPusher]: treesize reduction 23, result has 75.0 percent of original size [2021-05-01 06:59:39,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-05-01 06:59:39,914 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2021-05-01 06:59:39,919 INFO L142 QuantifierPusher]: treesize reduction 23, result has 75.0 percent of original size [2021-05-01 06:59:39,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-05-01 06:59:39,924 INFO L142 QuantifierPusher]: treesize reduction 23, result has 75.0 percent of original size [2021-05-01 06:59:39,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-05-01 06:59:40,319 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 36 [2021-05-01 06:59:40,324 INFO L142 QuantifierPusher]: treesize reduction 23, result has 75.0 percent of original size [2021-05-01 06:59:40,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-05-01 06:59:40,331 INFO L142 QuantifierPusher]: treesize reduction 14, result has 93.8 percent of original size [2021-05-01 06:59:40,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 212 [2021-05-01 06:59:41,074 WARN L205 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 54 [2021-05-01 06:59:41,079 INFO L142 QuantifierPusher]: treesize reduction 18, result has 85.2 percent of original size [2021-05-01 06:59:41,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-05-01 06:59:41,582 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 29 [2021-05-01 06:59:41,586 INFO L142 QuantifierPusher]: treesize reduction 9, result has 82.7 percent of original size [2021-05-01 06:59:41,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-05-01 06:59:41,867 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 18 [2021-05-01 06:59:41,871 INFO L142 QuantifierPusher]: treesize reduction 9, result has 83.6 percent of original size [2021-05-01 06:59:41,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-05-01 06:59:41,887 INFO L142 QuantifierPusher]: treesize reduction 9, result has 83.6 percent of original size [2021-05-01 06:59:41,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-05-01 06:59:41,904 INFO L142 QuantifierPusher]: treesize reduction 5, result has 96.4 percent of original size [2021-05-01 06:59:41,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-05-01 06:59:41,933 INFO L142 QuantifierPusher]: treesize reduction 5, result has 96.4 percent of original size [2021-05-01 06:59:41,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-05-01 06:59:41,962 INFO L142 QuantifierPusher]: treesize reduction 5, result has 96.4 percent of original size [2021-05-01 06:59:41,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-05-01 06:59:41,999 INFO L142 QuantifierPusher]: treesize reduction 5, result has 96.4 percent of original size [2021-05-01 06:59:42,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-05-01 06:59:42,035 INFO L142 QuantifierPusher]: treesize reduction 5, result has 96.4 percent of original size [2021-05-01 06:59:42,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-05-01 06:59:42,078 INFO L142 QuantifierPusher]: treesize reduction 5, result has 96.4 percent of original size [2021-05-01 06:59:42,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-05-01 06:59:42,123 INFO L142 QuantifierPusher]: treesize reduction 5, result has 96.4 percent of original size [2021-05-01 06:59:42,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-05-01 06:59:42,174 INFO L142 QuantifierPusher]: treesize reduction 5, result has 96.4 percent of original size [2021-05-01 06:59:42,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-05-01 06:59:42,224 INFO L142 QuantifierPusher]: treesize reduction 5, result has 96.4 percent of original size [2021-05-01 06:59:42,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-05-01 06:59:42,283 INFO L142 QuantifierPusher]: treesize reduction 5, result has 96.4 percent of original size [2021-05-01 06:59:42,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-05-01 06:59:42,341 INFO L142 QuantifierPusher]: treesize reduction 5, result has 96.4 percent of original size [2021-05-01 06:59:42,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-05-01 06:59:42,410 INFO L142 QuantifierPusher]: treesize reduction 5, result has 96.4 percent of original size [2021-05-01 06:59:42,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-05-01 06:59:42,476 INFO L142 QuantifierPusher]: treesize reduction 5, result has 96.4 percent of original size [2021-05-01 06:59:42,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-05-01 06:59:42,548 INFO L142 QuantifierPusher]: treesize reduction 5, result has 96.4 percent of original size [2021-05-01 06:59:42,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-05-01 06:59:42,619 INFO L142 QuantifierPusher]: treesize reduction 5, result has 96.4 percent of original size [2021-05-01 06:59:42,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-05-01 06:59:42,702 INFO L142 QuantifierPusher]: treesize reduction 5, result has 96.4 percent of original size [2021-05-01 06:59:42,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-05-01 06:59:42,781 INFO L142 QuantifierPusher]: treesize reduction 5, result has 96.4 percent of original size [2021-05-01 06:59:42,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-05-01 06:59:42,866 INFO L142 QuantifierPusher]: treesize reduction 5, result has 96.4 percent of original size [2021-05-01 06:59:42,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-05-01 06:59:42,952 INFO L142 QuantifierPusher]: treesize reduction 5, result has 96.4 percent of original size [2021-05-01 06:59:42,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-05-01 06:59:43,052 INFO L142 QuantifierPusher]: treesize reduction 5, result has 96.4 percent of original size [2021-05-01 06:59:43,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-05-01 06:59:43,159 INFO L142 QuantifierPusher]: treesize reduction 21, result has 96.6 percent of original size [2021-05-01 06:59:43,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 593 [2021-05-01 06:59:44,062 WARN L205 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 43 [2021-05-01 06:59:44,072 INFO L142 QuantifierPusher]: treesize reduction 39, result has 85.5 percent of original size [2021-05-01 06:59:44,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 230 [2021-05-01 06:59:44,798 WARN L205 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 48 [2021-05-01 06:59:44,802 INFO L142 QuantifierPusher]: treesize reduction 10, result has 88.5 percent of original size [2021-05-01 06:59:44,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-05-01 06:59:45,254 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 29 [2021-05-01 06:59:45,259 INFO L142 QuantifierPusher]: treesize reduction 10, result has 88.9 percent of original size [2021-05-01 06:59:45,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-05-01 06:59:45,733 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 31 [2021-05-01 06:59:45,740 INFO L142 QuantifierPusher]: treesize reduction 32, result has 82.3 percent of original size [2021-05-01 06:59:45,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 149 [2021-05-01 06:59:46,379 WARN L205 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 46 [2021-05-01 06:59:46,385 INFO L142 QuantifierPusher]: treesize reduction 32, result has 82.3 percent of original size [2021-05-01 06:59:46,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 149 [2021-05-01 06:59:46,957 WARN L205 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 46 [2021-05-01 06:59:46,964 INFO L142 QuantifierPusher]: treesize reduction 32, result has 82.3 percent of original size [2021-05-01 06:59:46,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 149 [2021-05-01 06:59:47,542 WARN L205 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 46 [2021-05-01 06:59:47,549 INFO L142 QuantifierPusher]: treesize reduction 32, result has 82.3 percent of original size [2021-05-01 06:59:47,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 149 [2021-05-01 06:59:48,123 WARN L205 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 46 [2021-05-01 06:59:48,129 INFO L142 QuantifierPusher]: treesize reduction 32, result has 82.3 percent of original size [2021-05-01 06:59:48,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 149 [2021-05-01 06:59:48,745 WARN L205 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 47 [2021-05-01 06:59:48,751 INFO L142 QuantifierPusher]: treesize reduction 32, result has 82.3 percent of original size [2021-05-01 06:59:48,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 149 [2021-05-01 06:59:49,306 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 46 [2021-05-01 06:59:49,311 INFO L142 QuantifierPusher]: treesize reduction 32, result has 82.3 percent of original size [2021-05-01 06:59:49,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 149 [2021-05-01 06:59:49,780 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 46 [2021-05-01 06:59:49,785 INFO L142 QuantifierPusher]: treesize reduction 32, result has 82.3 percent of original size [2021-05-01 06:59:49,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 149 [2021-05-01 06:59:50,303 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 47 [2021-05-01 06:59:50,308 INFO L142 QuantifierPusher]: treesize reduction 32, result has 82.3 percent of original size [2021-05-01 06:59:50,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 149 [2021-05-01 06:59:50,856 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 46 [2021-05-01 06:59:50,861 INFO L142 QuantifierPusher]: treesize reduction 32, result has 82.3 percent of original size [2021-05-01 06:59:50,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 149 [2021-05-01 06:59:51,388 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 45 [2021-05-01 06:59:51,395 INFO L142 QuantifierPusher]: treesize reduction 16, result has 95.3 percent of original size [2021-05-01 06:59:51,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 323 [2021-05-01 06:59:52,138 WARN L205 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 66 [2021-05-01 06:59:52,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:52,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:59:52,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:52,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:59:52,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:52,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 06:59:52,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:52,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:59:52,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:59:52,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:59:52,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:52,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:59:52,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-01 06:59:52,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:59:52,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:52,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:59:52,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-05-01 06:59:52,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:59:52,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:52,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:59:52,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-05-01 06:59:52,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:59:52,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:52,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:59:52,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-01 06:59:52,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:59:52,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:52,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:59:52,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-05-01 06:59:52,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:59:52,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:52,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:59:52,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-05-01 06:59:52,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:59:52,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:52,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:59:52,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-01 06:59:52,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:59:52,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:52,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:59:52,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-05-01 06:59:52,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:59:52,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:52,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:59:52,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-05-01 06:59:52,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:59:52,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:52,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:59:52,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-05-01 06:59:52,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:59:52,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:53,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:59:53,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-05-01 06:59:53,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:59:53,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:59:53,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:59:53,012 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-05-01 06:59:53,012 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:59:53,012 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [496665803] [2021-05-01 06:59:53,012 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [496665803] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:59:53,012 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:59:53,013 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [50] imperfect sequences [] total 50 [2021-05-01 06:59:53,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725716240] [2021-05-01 06:59:53,014 INFO L460 AbstractCegarLoop]: Interpolant automaton has 50 states [2021-05-01 06:59:53,014 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:59:53,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2021-05-01 06:59:53,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=2300, Unknown=0, NotChecked=0, Total=2450 [2021-05-01 06:59:53,015 INFO L87 Difference]: Start difference. First operand 198 states and 203 transitions. Second operand has 50 states, 49 states have (on average 2.9591836734693877) internal successors, (145), 48 states have internal predecessors, (145), 13 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-05-01 06:59:53,945 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 32 [2021-05-01 06:59:54,597 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 32 [2021-05-01 06:59:55,201 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 32 [2021-05-01 06:59:55,831 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 32 [2021-05-01 06:59:56,686 WARN L205 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 32 [2021-05-01 06:59:57,520 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 32 [2021-05-01 06:59:58,274 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 32 [2021-05-01 06:59:59,037 WARN L205 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 32 [2021-05-01 06:59:59,838 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 32 [2021-05-01 07:00:00,633 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 32 [2021-05-01 07:00:01,409 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-05-01 07:00:02,098 WARN L205 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 41 [2021-05-01 07:00:03,444 WARN L205 SmtUtils]: Spent 575.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 53 [2021-05-01 07:00:03,913 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 26 [2021-05-01 07:00:04,685 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 32 [2021-05-01 07:00:05,436 WARN L205 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 41 [2021-05-01 07:00:05,953 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 32 [2021-05-01 07:00:06,587 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 41 [2021-05-01 07:00:07,146 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 32 [2021-05-01 07:00:07,884 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 41 [2021-05-01 07:00:08,387 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 31 [2021-05-01 07:00:09,064 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 40 [2021-05-01 07:00:09,600 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 32 [2021-05-01 07:00:10,399 WARN L205 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 41 [2021-05-01 07:00:10,949 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 28 [2021-05-01 07:00:11,746 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 37 [2021-05-01 07:00:12,299 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 28 [2021-05-01 07:00:13,130 WARN L205 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 37 [2021-05-01 07:00:13,743 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 32 [2021-05-01 07:00:14,489 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 41 [2021-05-01 07:00:15,136 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 32 [2021-05-01 07:00:16,089 WARN L205 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 41 [2021-05-01 07:00:16,719 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 32 [2021-05-01 07:00:17,655 WARN L205 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 41 [2021-05-01 07:00:18,257 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 28 [2021-05-01 07:00:19,230 WARN L205 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 36 [2021-05-01 07:00:21,315 WARN L205 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 44 [2021-05-01 07:00:22,672 WARN L205 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 57 [2021-05-01 07:00:24,298 WARN L205 SmtUtils]: Spent 611.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 57 [2021-05-01 07:00:25,850 WARN L205 SmtUtils]: Spent 592.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 57 [2021-05-01 07:00:26,386 WARN L205 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 38 [2021-05-01 07:00:27,656 WARN L205 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 56 [2021-05-01 07:00:28,336 WARN L205 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 50 [2021-05-01 07:00:29,406 WARN L205 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 57 [2021-05-01 07:00:30,035 WARN L205 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 50 [2021-05-01 07:00:31,097 WARN L205 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 54 [2021-05-01 07:00:31,756 WARN L205 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 50 [2021-05-01 07:00:32,866 WARN L205 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 54 [2021-05-01 07:00:33,661 WARN L205 SmtUtils]: Spent 507.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 49 [2021-05-01 07:00:34,901 WARN L205 SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 57 [2021-05-01 07:00:35,607 WARN L205 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 50 [2021-05-01 07:00:36,859 WARN L205 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 57 [2021-05-01 07:00:37,625 WARN L205 SmtUtils]: Spent 493.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 50 [2021-05-01 07:00:38,869 WARN L205 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 57 [2021-05-01 07:00:39,600 WARN L205 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 50 [2021-05-01 07:00:40,996 WARN L205 SmtUtils]: Spent 598.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2021-05-01 07:00:41,833 WARN L205 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 50 [2021-05-01 07:00:42,969 WARN L205 SmtUtils]: Spent 470.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2021-05-01 07:00:44,129 WARN L205 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 50 [2021-05-01 07:00:44,665 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2021-05-01 07:00:45,573 WARN L205 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 50 [2021-05-01 07:00:46,214 WARN L205 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 55 [2021-05-01 07:00:47,002 WARN L205 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 52 [2021-05-01 07:00:48,074 WARN L205 SmtUtils]: Spent 620.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 81 [2021-05-01 07:00:49,090 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 49 [2021-05-01 07:00:49,953 WARN L205 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 58 [2021-05-01 07:00:50,921 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 49 [2021-05-01 07:00:51,707 WARN L205 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 58 [2021-05-01 07:00:52,588 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 49 [2021-05-01 07:00:53,582 WARN L205 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 58 [2021-05-01 07:00:54,550 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 49 [2021-05-01 07:00:55,459 WARN L205 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 58 [2021-05-01 07:00:56,691 WARN L205 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 49 [2021-05-01 07:00:57,812 WARN L205 SmtUtils]: Spent 533.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 58 [2021-05-01 07:00:59,029 WARN L205 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 39 [2021-05-01 07:01:00,121 WARN L205 SmtUtils]: Spent 468.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 48 [2021-05-01 07:01:01,321 WARN L205 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 47 [2021-05-01 07:01:02,532 WARN L205 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 56 [2021-05-01 07:01:03,321 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 40 [2021-05-01 07:01:04,052 WARN L205 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 50 [2021-05-01 07:01:05,091 WARN L205 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 50 [2021-05-01 07:01:06,201 WARN L205 SmtUtils]: Spent 541.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 59 [2021-05-01 07:01:07,374 WARN L205 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 49 [2021-05-01 07:01:08,487 WARN L205 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 58 [2021-05-01 07:01:09,541 WARN L205 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 48 [2021-05-01 07:01:10,487 WARN L205 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 57 [2021-05-01 07:01:11,541 WARN L205 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2021-05-01 07:01:12,542 WARN L205 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2021-05-01 07:01:14,431 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 32 [2021-05-01 07:01:14,951 WARN L205 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 50 [2021-05-01 07:01:15,446 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 40 [2021-05-01 07:01:15,978 WARN L205 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 50 [2021-05-01 07:01:16,529 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 37 [2021-05-01 07:01:17,106 WARN L205 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 50 [2021-05-01 07:01:17,657 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 40 [2021-05-01 07:01:18,203 WARN L205 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 50 [2021-05-01 07:01:18,714 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 37 [2021-05-01 07:01:19,251 WARN L205 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 43 [2021-05-01 07:01:19,784 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 41 [2021-05-01 07:01:20,363 WARN L205 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 51 [2021-05-01 07:01:20,963 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2021-05-01 07:01:21,635 WARN L205 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 52 [2021-05-01 07:01:22,231 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 40 [2021-05-01 07:01:22,812 WARN L205 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 50 [2021-05-01 07:01:23,423 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 39 [2021-05-01 07:01:24,022 WARN L205 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 49 [2021-05-01 07:01:24,776 WARN L205 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2021-05-01 07:01:25,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:01:25,541 INFO L93 Difference]: Finished difference Result 341 states and 364 transitions. [2021-05-01 07:01:25,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2021-05-01 07:01:25,551 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 49 states have (on average 2.9591836734693877) internal successors, (145), 48 states have internal predecessors, (145), 13 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Word has length 201 [2021-05-01 07:01:25,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:01:25,552 INFO L225 Difference]: With dead ends: 341 [2021-05-01 07:01:25,552 INFO L226 Difference]: Without dead ends: 225 [2021-05-01 07:01:25,554 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 36 SyntacticMatches, 22 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7297 ImplicationChecksByTransitivity, 81387.3ms TimeCoverageRelationStatistics Valid=1238, Invalid=24202, Unknown=0, NotChecked=0, Total=25440 [2021-05-01 07:01:25,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2021-05-01 07:01:25,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 214. [2021-05-01 07:01:25,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 186 states have (on average 1.021505376344086) internal successors, (190), 186 states have internal predecessors, (190), 15 states have call successors, (15), 14 states have call predecessors, (15), 12 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2021-05-01 07:01:25,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 219 transitions. [2021-05-01 07:01:25,734 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 219 transitions. Word has length 201 [2021-05-01 07:01:25,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:01:25,734 INFO L480 AbstractCegarLoop]: Abstraction has 214 states and 219 transitions. [2021-05-01 07:01:25,734 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 50 states, 49 states have (on average 2.9591836734693877) internal successors, (145), 48 states have internal predecessors, (145), 13 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-05-01 07:01:25,735 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 219 transitions. [2021-05-01 07:01:25,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-05-01 07:01:25,736 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:01:25,736 INFO L519 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:01:25,736 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-05-01 07:01:25,736 INFO L428 AbstractCegarLoop]: === Iteration 42 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:01:25,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:01:25,737 INFO L82 PathProgramCache]: Analyzing trace with hash -773376101, now seen corresponding path program 39 times [2021-05-01 07:01:25,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:01:25,737 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1358701931] [2021-05-01 07:01:25,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:01:25,754 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 07:01:25,761 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 07:01:26,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:01:27,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:01:27,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:01:27,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:01:27,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-05-01 07:01:27,174 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 17 [2021-05-01 07:01:27,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:01:27,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-05-01 07:01:27,378 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 19 [2021-05-01 07:01:27,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:01:27,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-05-01 07:01:27,614 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 19 [2021-05-01 07:01:27,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:01:27,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-05-01 07:01:27,868 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 19 [2021-05-01 07:01:27,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:01:27,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-05-01 07:01:28,118 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 19 [2021-05-01 07:01:28,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:01:28,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-05-01 07:01:28,355 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 19 [2021-05-01 07:01:28,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:01:28,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-05-01 07:01:28,577 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 19 [2021-05-01 07:01:28,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:01:28,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-05-01 07:01:28,795 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 19 [2021-05-01 07:01:28,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:01:28,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-05-01 07:01:29,018 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 19 [2021-05-01 07:01:29,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:01:29,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-05-01 07:01:29,250 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 19 [2021-05-01 07:01:29,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:01:29,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-05-01 07:01:29,504 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 19 [2021-05-01 07:01:29,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:01:29,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-05-01 07:01:29,766 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 19 [2021-05-01 07:01:29,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:01:29,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-05-01 07:01:30,040 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 19 [2021-05-01 07:01:30,046 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.2 percent of original size [2021-05-01 07:01:30,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:01:30,397 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 24 [2021-05-01 07:01:30,402 INFO L142 QuantifierPusher]: treesize reduction 9, result has 77.5 percent of original size [2021-05-01 07:01:30,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-01 07:01:30,662 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 22 [2021-05-01 07:01:30,667 INFO L142 QuantifierPusher]: treesize reduction 9, result has 79.1 percent of original size [2021-05-01 07:01:30,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-05-01 07:01:30,947 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 24 [2021-05-01 07:01:30,953 INFO L142 QuantifierPusher]: treesize reduction 9, result has 80.4 percent of original size [2021-05-01 07:01:30,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-05-01 07:01:31,265 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 26 [2021-05-01 07:01:31,271 INFO L142 QuantifierPusher]: treesize reduction 9, result has 80.4 percent of original size [2021-05-01 07:01:31,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-05-01 07:01:31,604 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 26 [2021-05-01 07:01:31,609 INFO L142 QuantifierPusher]: treesize reduction 9, result has 80.4 percent of original size [2021-05-01 07:01:31,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-05-01 07:01:31,916 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 26 [2021-05-01 07:01:31,921 INFO L142 QuantifierPusher]: treesize reduction 9, result has 80.4 percent of original size [2021-05-01 07:01:31,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-05-01 07:01:32,248 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 26 [2021-05-01 07:01:32,253 INFO L142 QuantifierPusher]: treesize reduction 9, result has 80.4 percent of original size [2021-05-01 07:01:32,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-05-01 07:01:32,561 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 26 [2021-05-01 07:01:32,565 INFO L142 QuantifierPusher]: treesize reduction 9, result has 80.4 percent of original size [2021-05-01 07:01:32,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-05-01 07:01:32,847 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 26 [2021-05-01 07:01:32,852 INFO L142 QuantifierPusher]: treesize reduction 9, result has 80.4 percent of original size [2021-05-01 07:01:32,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-05-01 07:01:33,137 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 26 [2021-05-01 07:01:33,142 INFO L142 QuantifierPusher]: treesize reduction 9, result has 80.4 percent of original size [2021-05-01 07:01:33,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-05-01 07:01:33,469 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 26 [2021-05-01 07:01:33,474 INFO L142 QuantifierPusher]: treesize reduction 9, result has 80.4 percent of original size [2021-05-01 07:01:33,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-05-01 07:01:33,780 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 26 [2021-05-01 07:01:33,785 INFO L142 QuantifierPusher]: treesize reduction 9, result has 80.4 percent of original size [2021-05-01 07:01:33,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-05-01 07:01:34,064 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 26 [2021-05-01 07:01:34,068 INFO L142 QuantifierPusher]: treesize reduction 9, result has 80.4 percent of original size [2021-05-01 07:01:34,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-05-01 07:01:34,365 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 26 [2021-05-01 07:01:34,388 INFO L142 QuantifierPusher]: treesize reduction 325, result has 60.3 percent of original size [2021-05-01 07:01:34,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 494 [2021-05-01 07:01:35,561 WARN L205 SmtUtils]: Spent 689.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 47 [2021-05-01 07:01:35,584 INFO L142 QuantifierPusher]: treesize reduction 59, result has 94.3 percent of original size [2021-05-01 07:01:35,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 975 [2021-05-01 07:01:36,965 WARN L205 SmtUtils]: Spent 755.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 40 [2021-05-01 07:01:36,970 INFO L142 QuantifierPusher]: treesize reduction 14, result has 80.6 percent of original size [2021-05-01 07:01:36,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:01:37,429 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 23 [2021-05-01 07:01:37,434 INFO L142 QuantifierPusher]: treesize reduction 14, result has 81.3 percent of original size [2021-05-01 07:01:37,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:01:37,827 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 25 [2021-05-01 07:01:37,833 INFO L142 QuantifierPusher]: treesize reduction 17, result has 79.8 percent of original size [2021-05-01 07:01:37,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-05-01 07:01:38,345 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 28 [2021-05-01 07:01:38,352 INFO L142 QuantifierPusher]: treesize reduction 17, result has 79.8 percent of original size [2021-05-01 07:01:38,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-05-01 07:01:38,904 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 28 [2021-05-01 07:01:38,909 INFO L142 QuantifierPusher]: treesize reduction 17, result has 79.8 percent of original size [2021-05-01 07:01:38,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-05-01 07:01:39,399 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 28 [2021-05-01 07:01:39,404 INFO L142 QuantifierPusher]: treesize reduction 17, result has 79.8 percent of original size [2021-05-01 07:01:39,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-05-01 07:01:39,919 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 28 [2021-05-01 07:01:39,926 INFO L142 QuantifierPusher]: treesize reduction 17, result has 79.8 percent of original size [2021-05-01 07:01:39,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-05-01 07:01:40,443 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 28 [2021-05-01 07:01:40,448 INFO L142 QuantifierPusher]: treesize reduction 17, result has 79.8 percent of original size [2021-05-01 07:01:40,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-05-01 07:01:41,116 WARN L205 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 28 [2021-05-01 07:01:41,124 INFO L142 QuantifierPusher]: treesize reduction 17, result has 79.8 percent of original size [2021-05-01 07:01:41,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-05-01 07:01:41,793 WARN L205 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 28 [2021-05-01 07:01:41,800 INFO L142 QuantifierPusher]: treesize reduction 17, result has 79.8 percent of original size [2021-05-01 07:01:41,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-05-01 07:01:42,526 WARN L205 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 28 [2021-05-01 07:01:42,534 INFO L142 QuantifierPusher]: treesize reduction 17, result has 79.8 percent of original size [2021-05-01 07:01:42,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-05-01 07:01:43,267 WARN L205 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 28 [2021-05-01 07:01:43,276 INFO L142 QuantifierPusher]: treesize reduction 17, result has 79.8 percent of original size [2021-05-01 07:01:43,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-05-01 07:01:44,066 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 28 [2021-05-01 07:01:44,072 INFO L142 QuantifierPusher]: treesize reduction 17, result has 79.8 percent of original size [2021-05-01 07:01:44,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-05-01 07:01:44,627 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 28 [2021-05-01 07:01:44,660 INFO L142 QuantifierPusher]: treesize reduction 200, result has 82.0 percent of original size [2021-05-01 07:01:44,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 913 [2021-05-01 07:01:46,371 WARN L205 SmtUtils]: Spent 950.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 53 [2021-05-01 07:01:46,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:01:46,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 07:01:46,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:01:46,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:01:47,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:01:47,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:01:47,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:01:47,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:01:47,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:01:47,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:01:47,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:01:47,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:01:47,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-05-01 07:01:47,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:01:47,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:01:47,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:01:47,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-05-01 07:01:47,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:01:47,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:01:47,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:01:47,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-01 07:01:47,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:01:47,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:01:47,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:01:47,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-05-01 07:01:47,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:01:47,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:01:47,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:01:47,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-05-01 07:01:47,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:01:47,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:01:47,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:01:47,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-01 07:01:47,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:01:47,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:01:47,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:01:47,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-05-01 07:01:47,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:01:47,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:01:47,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:01:47,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-05-01 07:01:47,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:01:47,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:01:47,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:01:47,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-05-01 07:01:47,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:01:47,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:01:47,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:01:47,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-05-01 07:01:47,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:01:47,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:01:47,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:01:47,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-05-01 07:01:47,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:01:47,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:01:47,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:01:47,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-05-01 07:01:47,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:01:47,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:01:47,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:01:47,825 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-05-01 07:01:47,825 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:01:47,826 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1358701931] [2021-05-01 07:01:47,826 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1358701931] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:01:47,826 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:01:47,826 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [49] imperfect sequences [] total 49 [2021-05-01 07:01:47,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513931475] [2021-05-01 07:01:47,826 INFO L460 AbstractCegarLoop]: Interpolant automaton has 49 states [2021-05-01 07:01:47,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:01:47,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-05-01 07:01:47,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=2195, Unknown=0, NotChecked=0, Total=2352 [2021-05-01 07:01:47,827 INFO L87 Difference]: Start difference. First operand 214 states and 219 transitions. Second operand has 49 states, 48 states have (on average 2.5) internal successors, (120), 47 states have internal predecessors, (120), 14 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-05-01 07:01:59,027 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 26 [2021-05-01 07:01:59,810 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 36 [2021-05-01 07:02:06,106 WARN L205 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 52 [2021-05-01 07:02:06,839 WARN L205 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-05-01 07:02:09,080 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-05-01 07:02:10,744 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-05-01 07:02:11,641 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-05-01 07:02:12,516 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-05-01 07:02:13,649 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-05-01 07:02:14,839 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-05-01 07:02:16,184 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-05-01 07:02:17,151 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-05-01 07:02:18,194 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-05-01 07:02:19,200 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-05-01 07:02:20,665 WARN L205 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 57 [2021-05-01 07:02:22,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:02:22,451 INFO L93 Difference]: Finished difference Result 348 states and 368 transitions. [2021-05-01 07:02:22,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-05-01 07:02:22,458 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 48 states have (on average 2.5) internal successors, (120), 47 states have internal predecessors, (120), 14 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Word has length 217 [2021-05-01 07:02:22,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:02:22,459 INFO L225 Difference]: With dead ends: 348 [2021-05-01 07:02:22,459 INFO L226 Difference]: Without dead ends: 219 [2021-05-01 07:02:22,460 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 927 ImplicationChecksByTransitivity, 27616.9ms TimeCoverageRelationStatistics Valid=346, Invalid=4484, Unknown=0, NotChecked=0, Total=4830 [2021-05-01 07:02:22,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2021-05-01 07:02:22,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 217. [2021-05-01 07:02:22,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 189 states have (on average 1.0211640211640212) internal successors, (193), 189 states have internal predecessors, (193), 15 states have call successors, (15), 14 states have call predecessors, (15), 12 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2021-05-01 07:02:22,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 222 transitions. [2021-05-01 07:02:22,591 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 222 transitions. Word has length 217 [2021-05-01 07:02:22,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:02:22,591 INFO L480 AbstractCegarLoop]: Abstraction has 217 states and 222 transitions. [2021-05-01 07:02:22,591 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 49 states, 48 states have (on average 2.5) internal successors, (120), 47 states have internal predecessors, (120), 14 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-05-01 07:02:22,591 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 222 transitions. [2021-05-01 07:02:22,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2021-05-01 07:02:22,592 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:02:22,593 INFO L519 BasicCegarLoop]: trace histogram [14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:02:22,593 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-05-01 07:02:22,593 INFO L428 AbstractCegarLoop]: === Iteration 43 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:02:22,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:02:22,593 INFO L82 PathProgramCache]: Analyzing trace with hash -2048068108, now seen corresponding path program 40 times [2021-05-01 07:02:22,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:02:22,593 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2113473198] [2021-05-01 07:02:22,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:02:22,610 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 07:02:22,611 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 07:02:22,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:02:22,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:02:22,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:02:22,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:02:22,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:02:22,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:02:22,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 07:02:22,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:02:22,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 07:02:22,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:02:22,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 07:02:22,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:02:22,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 07:02:23,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:02:23,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 07:02:23,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:02:23,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 07:02:23,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:02:23,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 07:02:23,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:02:23,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 07:02:23,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:02:23,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 07:02:23,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:02:23,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 07:02:23,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:02:23,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 07:02:23,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:02:23,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 07:02:23,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:02:23,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 07:02:23,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:02:23,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-01 07:02:23,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:02:23,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 07:02:24,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:02:24,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:02:24,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:02:24,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 07:02:24,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:02:24,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 07:02:24,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:02:24,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 07:02:24,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:02:24,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 07:02:24,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:02:24,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 07:02:25,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:02:25,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 07:02:25,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:02:25,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 07:02:25,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:02:25,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 07:02:25,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:02:25,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 07:02:25,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:02:25,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 07:02:26,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:02:26,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 07:02:26,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:02:26,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 07:02:26,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:02:26,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-05-01 07:02:27,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:02:27,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:02:27,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:02:27,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:02:27,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:02:27,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:02:27,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-05-01 07:02:27,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:02:27,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:02:27,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:02:27,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-05-01 07:02:27,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:02:27,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:02:27,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:02:27,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-05-01 07:02:27,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:02:27,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:02:27,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:02:27,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-05-01 07:02:27,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:02:27,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:02:27,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:02:27,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-05-01 07:02:27,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:02:27,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:02:27,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:02:27,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-05-01 07:02:27,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:02:27,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:02:27,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:02:27,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-05-01 07:02:27,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:02:27,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:02:27,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:02:27,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-05-01 07:02:27,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:02:27,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:02:27,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:02:27,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-05-01 07:02:27,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:02:27,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:02:27,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:02:27,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-05-01 07:02:27,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:02:27,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:02:27,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:02:27,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-05-01 07:02:27,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:02:27,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:02:27,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:02:27,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-05-01 07:02:27,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:02:27,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:02:27,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:02:27,940 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-05-01 07:02:27,941 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:02:27,941 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2113473198] [2021-05-01 07:02:27,941 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [2113473198] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:02:27,941 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:02:27,941 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2021-05-01 07:02:27,941 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508094691] [2021-05-01 07:02:27,943 INFO L460 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-05-01 07:02:27,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:02:27,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-05-01 07:02:27,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=976, Unknown=0, NotChecked=0, Total=1056 [2021-05-01 07:02:27,944 INFO L87 Difference]: Start difference. First operand 217 states and 222 transitions. Second operand has 33 states, 33 states have (on average 3.0606060606060606) internal successors, (101), 32 states have internal predecessors, (101), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 07:02:36,482 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 15 [2021-05-01 07:02:38,504 WARN L205 SmtUtils]: Spent 456.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 17 [2021-05-01 07:02:39,644 WARN L205 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 17 [2021-05-01 07:02:40,527 WARN L205 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 17 [2021-05-01 07:02:41,445 WARN L205 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 17 [2021-05-01 07:02:42,321 WARN L205 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 17 [2021-05-01 07:02:43,119 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 15 [2021-05-01 07:02:44,004 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 16 [2021-05-01 07:02:44,940 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 15 [2021-05-01 07:02:45,490 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 15 [2021-05-01 07:02:45,986 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 15 [2021-05-01 07:02:58,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:02:58,997 INFO L93 Difference]: Finished difference Result 364 states and 376 transitions. [2021-05-01 07:02:59,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-05-01 07:02:59,003 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 3.0606060606060606) internal successors, (101), 32 states have internal predecessors, (101), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 220 [2021-05-01 07:02:59,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:02:59,004 INFO L225 Difference]: With dead ends: 364 [2021-05-01 07:02:59,004 INFO L226 Difference]: Without dead ends: 237 [2021-05-01 07:02:59,005 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 397 ImplicationChecksByTransitivity, 14402.5ms TimeCoverageRelationStatistics Valid=320, Invalid=3220, Unknown=0, NotChecked=0, Total=3540 [2021-05-01 07:02:59,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2021-05-01 07:02:59,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 222. [2021-05-01 07:02:59,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 194 states have (on average 1.0206185567010309) internal successors, (198), 194 states have internal predecessors, (198), 15 states have call successors, (15), 14 states have call predecessors, (15), 12 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2021-05-01 07:02:59,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 227 transitions. [2021-05-01 07:02:59,153 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 227 transitions. Word has length 220 [2021-05-01 07:02:59,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:02:59,154 INFO L480 AbstractCegarLoop]: Abstraction has 222 states and 227 transitions. [2021-05-01 07:02:59,154 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 33 states, 33 states have (on average 3.0606060606060606) internal successors, (101), 32 states have internal predecessors, (101), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 07:02:59,154 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 227 transitions. [2021-05-01 07:02:59,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2021-05-01 07:02:59,155 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:02:59,155 INFO L519 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:02:59,155 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-05-01 07:02:59,156 INFO L428 AbstractCegarLoop]: === Iteration 44 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:02:59,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:02:59,156 INFO L82 PathProgramCache]: Analyzing trace with hash -1284704045, now seen corresponding path program 41 times [2021-05-01 07:02:59,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:02:59,156 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1956929637] [2021-05-01 07:02:59,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:02:59,169 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 07:02:59,170 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 07:03:00,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:03:00,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:03:00,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:03:00,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:03:00,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-05-01 07:03:00,548 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 17 [2021-05-01 07:03:00,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:03:00,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-05-01 07:03:00,793 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 20 [2021-05-01 07:03:00,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:03:00,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-05-01 07:03:01,046 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 20 [2021-05-01 07:03:01,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:03:01,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-05-01 07:03:01,337 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 20 [2021-05-01 07:03:01,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:03:01,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-05-01 07:03:01,627 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 20 [2021-05-01 07:03:01,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:03:01,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-05-01 07:03:01,969 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 20 [2021-05-01 07:03:01,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:03:01,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-05-01 07:03:02,346 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 20 [2021-05-01 07:03:02,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:03:02,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-05-01 07:03:02,730 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 20 [2021-05-01 07:03:02,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:03:02,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-05-01 07:03:03,128 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 20 [2021-05-01 07:03:03,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:03:03,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-05-01 07:03:03,576 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 20 [2021-05-01 07:03:03,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:03:03,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-05-01 07:03:04,052 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 20 [2021-05-01 07:03:04,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:03:04,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-05-01 07:03:04,525 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 20 [2021-05-01 07:03:04,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:03:04,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-05-01 07:03:05,002 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 20 [2021-05-01 07:03:05,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:03:05,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-05-01 07:03:05,481 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 20 [2021-05-01 07:03:05,488 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.3 percent of original size [2021-05-01 07:03:05,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:03:06,113 WARN L205 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 24 [2021-05-01 07:03:06,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:03:06,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-05-01 07:03:06,558 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-05-01 07:03:06,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:03:06,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 07:03:07,032 WARN L205 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 24 [2021-05-01 07:03:07,038 INFO L142 QuantifierPusher]: treesize reduction 3, result has 94.5 percent of original size [2021-05-01 07:03:07,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-05-01 07:03:07,600 WARN L205 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 27 [2021-05-01 07:03:07,608 INFO L142 QuantifierPusher]: treesize reduction 3, result has 94.5 percent of original size [2021-05-01 07:03:07,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-05-01 07:03:08,171 WARN L205 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 27 [2021-05-01 07:03:08,178 INFO L142 QuantifierPusher]: treesize reduction 3, result has 94.5 percent of original size [2021-05-01 07:03:08,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-05-01 07:03:08,646 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 27 [2021-05-01 07:03:08,652 INFO L142 QuantifierPusher]: treesize reduction 3, result has 94.5 percent of original size [2021-05-01 07:03:08,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-05-01 07:03:09,139 WARN L205 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 27 [2021-05-01 07:03:09,145 INFO L142 QuantifierPusher]: treesize reduction 3, result has 94.5 percent of original size [2021-05-01 07:03:09,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-05-01 07:03:09,634 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 27 [2021-05-01 07:03:09,640 INFO L142 QuantifierPusher]: treesize reduction 3, result has 94.5 percent of original size [2021-05-01 07:03:09,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-05-01 07:03:10,160 WARN L205 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 27 [2021-05-01 07:03:10,167 INFO L142 QuantifierPusher]: treesize reduction 3, result has 94.5 percent of original size [2021-05-01 07:03:10,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-05-01 07:03:10,692 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 27 [2021-05-01 07:03:10,698 INFO L142 QuantifierPusher]: treesize reduction 3, result has 94.5 percent of original size [2021-05-01 07:03:10,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-05-01 07:03:11,223 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 27 [2021-05-01 07:03:11,229 INFO L142 QuantifierPusher]: treesize reduction 3, result has 94.5 percent of original size [2021-05-01 07:03:11,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-05-01 07:03:11,753 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 27 [2021-05-01 07:03:11,760 INFO L142 QuantifierPusher]: treesize reduction 3, result has 94.5 percent of original size [2021-05-01 07:03:11,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-05-01 07:03:12,343 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 27 [2021-05-01 07:03:12,350 INFO L142 QuantifierPusher]: treesize reduction 3, result has 94.5 percent of original size [2021-05-01 07:03:12,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-05-01 07:03:12,938 WARN L205 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 27 [2021-05-01 07:03:12,977 INFO L142 QuantifierPusher]: treesize reduction 227, result has 75.9 percent of original size [2021-05-01 07:03:13,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 715 [2021-05-01 07:03:14,947 WARN L205 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 130 DAG size of output: 43 [2021-05-01 07:03:15,001 INFO L142 QuantifierPusher]: treesize reduction 238, result has 80.9 percent of original size [2021-05-01 07:03:15,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1009 [2021-05-01 07:03:17,343 WARN L205 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 164 DAG size of output: 53 [2021-05-01 07:03:17,353 INFO L142 QuantifierPusher]: treesize reduction 27, result has 89.3 percent of original size [2021-05-01 07:03:17,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 226 [2021-05-01 07:03:18,658 WARN L205 SmtUtils]: Spent 732.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 57 [2021-05-01 07:03:18,664 INFO L142 QuantifierPusher]: treesize reduction 42, result has 50.6 percent of original size [2021-05-01 07:03:18,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-05-01 07:03:19,119 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 25 [2021-05-01 07:03:19,125 INFO L142 QuantifierPusher]: treesize reduction 24, result has 64.2 percent of original size [2021-05-01 07:03:19,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-05-01 07:03:19,131 INFO L142 QuantifierPusher]: treesize reduction 24, result has 65.7 percent of original size [2021-05-01 07:03:19,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-05-01 07:03:19,604 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-05-01 07:03:19,608 INFO L142 QuantifierPusher]: treesize reduction 40, result has 55.1 percent of original size [2021-05-01 07:03:19,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:03:20,104 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 29 [2021-05-01 07:03:20,110 INFO L142 QuantifierPusher]: treesize reduction 40, result has 55.1 percent of original size [2021-05-01 07:03:20,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:03:20,653 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 29 [2021-05-01 07:03:20,659 INFO L142 QuantifierPusher]: treesize reduction 40, result has 55.1 percent of original size [2021-05-01 07:03:20,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:03:21,174 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 29 [2021-05-01 07:03:21,179 INFO L142 QuantifierPusher]: treesize reduction 40, result has 55.1 percent of original size [2021-05-01 07:03:21,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:03:21,784 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 29 [2021-05-01 07:03:21,791 INFO L142 QuantifierPusher]: treesize reduction 40, result has 55.1 percent of original size [2021-05-01 07:03:21,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:03:22,382 WARN L205 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 29 [2021-05-01 07:03:22,389 INFO L142 QuantifierPusher]: treesize reduction 40, result has 55.1 percent of original size [2021-05-01 07:03:22,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:03:22,989 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 29 [2021-05-01 07:03:22,996 INFO L142 QuantifierPusher]: treesize reduction 40, result has 55.1 percent of original size [2021-05-01 07:03:22,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:03:23,618 WARN L205 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 29 [2021-05-01 07:03:23,624 INFO L142 QuantifierPusher]: treesize reduction 40, result has 55.1 percent of original size [2021-05-01 07:03:23,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:03:24,285 WARN L205 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 29 [2021-05-01 07:03:24,292 INFO L142 QuantifierPusher]: treesize reduction 40, result has 55.1 percent of original size [2021-05-01 07:03:24,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:03:25,055 WARN L205 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 29 [2021-05-01 07:03:25,064 INFO L142 QuantifierPusher]: treesize reduction 40, result has 55.1 percent of original size [2021-05-01 07:03:25,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:03:25,864 WARN L205 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 29 [2021-05-01 07:03:25,872 INFO L142 QuantifierPusher]: treesize reduction 40, result has 55.1 percent of original size [2021-05-01 07:03:25,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:03:26,636 WARN L205 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 29 [2021-05-01 07:03:26,676 INFO L142 QuantifierPusher]: treesize reduction 201, result has 81.9 percent of original size [2021-05-01 07:03:26,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 911 [2021-05-01 07:03:29,338 WARN L205 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 153 DAG size of output: 48 [2021-05-01 07:03:29,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:03:29,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 07:03:29,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:03:29,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:03:29,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:03:29,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:03:30,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:03:30,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:03:30,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:03:30,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:03:30,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:03:30,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:03:30,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-05-01 07:03:30,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:03:30,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:03:30,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:03:30,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-01 07:03:30,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:03:30,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:03:30,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:03:30,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-05-01 07:03:30,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:03:30,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:03:30,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:03:30,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-05-01 07:03:30,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:03:30,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:03:30,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:03:30,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-01 07:03:30,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:03:30,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:03:30,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:03:30,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-05-01 07:03:30,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:03:30,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:03:30,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:03:30,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-05-01 07:03:30,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:03:30,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:03:30,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:03:30,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-05-01 07:03:30,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:03:30,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:03:30,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:03:30,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-05-01 07:03:30,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:03:30,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:03:30,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:03:30,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-05-01 07:03:30,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:03:30,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:03:30,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:03:30,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-05-01 07:03:30,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:03:30,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:03:30,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:03:30,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-05-01 07:03:30,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:03:30,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:03:30,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:03:30,772 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-05-01 07:03:30,772 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:03:30,772 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1956929637] [2021-05-01 07:03:30,772 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1956929637] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:03:30,772 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:03:30,773 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [51] imperfect sequences [] total 51 [2021-05-01 07:03:30,773 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68826695] [2021-05-01 07:03:30,774 INFO L460 AbstractCegarLoop]: Interpolant automaton has 51 states [2021-05-01 07:03:30,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:03:30,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2021-05-01 07:03:30,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=2340, Unknown=0, NotChecked=0, Total=2550 [2021-05-01 07:03:30,776 INFO L87 Difference]: Start difference. First operand 222 states and 227 transitions. Second operand has 51 states, 50 states have (on average 2.5) internal successors, (125), 49 states have internal predecessors, (125), 14 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-05-01 07:03:40,142 WARN L205 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 36 [2021-05-01 07:03:46,986 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-05-01 07:03:47,892 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2021-05-01 07:03:48,621 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2021-05-01 07:03:48,984 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-05-01 07:03:49,943 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-05-01 07:03:50,972 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-05-01 07:03:51,967 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-05-01 07:03:53,086 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-05-01 07:03:54,121 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-05-01 07:03:55,187 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-05-01 07:03:56,215 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-05-01 07:03:56,962 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-05-01 07:03:57,707 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-05-01 07:03:58,384 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-05-01 07:03:59,058 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-05-01 07:03:59,687 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-05-01 07:04:00,474 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-05-01 07:04:02,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:04:02,411 INFO L93 Difference]: Finished difference Result 382 states and 407 transitions. [2021-05-01 07:04:02,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-05-01 07:04:02,421 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 50 states have (on average 2.5) internal successors, (125), 49 states have internal predecessors, (125), 14 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Word has length 225 [2021-05-01 07:04:02,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:04:02,423 INFO L225 Difference]: With dead ends: 382 [2021-05-01 07:04:02,423 INFO L226 Difference]: Without dead ends: 380 [2021-05-01 07:04:02,424 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1330 ImplicationChecksByTransitivity, 36900.4ms TimeCoverageRelationStatistics Valid=442, Invalid=4814, Unknown=0, NotChecked=0, Total=5256 [2021-05-01 07:04:02,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2021-05-01 07:04:02,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 354. [2021-05-01 07:04:02,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 312 states have (on average 1.0224358974358974) internal successors, (319), 313 states have internal predecessors, (319), 28 states have call successors, (28), 15 states have call predecessors, (28), 13 states have return successors, (27), 25 states have call predecessors, (27), 27 states have call successors, (27) [2021-05-01 07:04:02,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 374 transitions. [2021-05-01 07:04:02,690 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 374 transitions. Word has length 225 [2021-05-01 07:04:02,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:04:02,690 INFO L480 AbstractCegarLoop]: Abstraction has 354 states and 374 transitions. [2021-05-01 07:04:02,690 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 51 states, 50 states have (on average 2.5) internal successors, (125), 49 states have internal predecessors, (125), 14 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-05-01 07:04:02,690 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 374 transitions. [2021-05-01 07:04:02,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2021-05-01 07:04:02,692 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:04:02,692 INFO L519 BasicCegarLoop]: trace histogram [15, 15, 15, 14, 14, 14, 14, 14, 13, 13, 13, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:04:02,692 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-05-01 07:04:02,693 INFO L428 AbstractCegarLoop]: === Iteration 45 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:04:02,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:04:02,693 INFO L82 PathProgramCache]: Analyzing trace with hash -392212948, now seen corresponding path program 42 times [2021-05-01 07:04:02,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:04:02,693 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [266449988] [2021-05-01 07:04:02,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:04:02,710 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 07:04:02,712 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 07:04:02,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:04:02,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:04:02,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:04:02,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:04:02,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:04:02,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:04:02,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 07:04:03,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:04:03,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 07:04:03,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:04:03,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 07:04:03,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:04:03,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 07:04:03,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:04:03,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 07:04:03,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:04:03,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 07:04:03,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:04:03,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 07:04:03,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:04:03,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 07:04:03,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:04:03,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 07:04:03,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:04:03,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 07:04:03,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:04:03,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 07:04:03,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:04:03,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 07:04:03,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:04:03,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 07:04:04,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:04:04,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 07:04:04,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:04:04,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-01 07:04:04,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:04:04,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 07:04:04,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:04:04,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:04:04,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:04:04,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 07:04:04,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:04:04,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 07:04:05,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:04:05,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 07:04:05,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:04:05,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 07:04:05,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:04:05,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 07:04:05,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:04:05,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 07:04:06,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:04:06,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 07:04:06,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:04:06,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 07:04:06,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:04:06,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 07:04:07,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:04:07,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 07:04:07,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:04:07,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 07:04:08,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:04:08,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 07:04:08,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:04:08,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 07:04:09,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:04:09,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-05-01 07:04:09,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:04:09,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:04:10,126 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2021-05-01 07:04:10,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:04:10,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:04:10,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:04:10,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:04:10,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-05-01 07:04:10,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:04:10,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:04:10,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:04:10,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-05-01 07:04:10,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:04:10,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:04:10,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:04:10,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-05-01 07:04:10,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:04:10,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:04:10,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:04:10,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-05-01 07:04:10,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:04:10,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:04:10,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:04:10,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-05-01 07:04:10,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:04:10,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:04:10,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:04:10,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-05-01 07:04:10,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:04:10,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:04:10,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:04:10,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-05-01 07:04:10,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:04:10,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:04:10,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:04:10,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-05-01 07:04:10,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:04:10,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:04:10,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:04:10,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-05-01 07:04:10,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:04:10,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:04:10,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:04:10,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-05-01 07:04:10,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:04:10,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:04:10,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:04:10,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-05-01 07:04:10,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:04:10,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:04:10,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:04:10,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-05-01 07:04:10,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:04:10,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:04:10,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:04:10,278 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-05-01 07:04:10,278 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:04:10,278 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [266449988] [2021-05-01 07:04:10,278 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [266449988] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:04:10,278 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:04:10,278 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-05-01 07:04:10,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632228576] [2021-05-01 07:04:10,279 INFO L460 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-05-01 07:04:10,279 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:04:10,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-05-01 07:04:10,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=1105, Unknown=0, NotChecked=0, Total=1190 [2021-05-01 07:04:10,280 INFO L87 Difference]: Start difference. First operand 354 states and 374 transitions. Second operand has 35 states, 35 states have (on average 3.057142857142857) internal successors, (107), 34 states have internal predecessors, (107), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 07:04:23,085 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 15 [2021-05-01 07:04:26,489 WARN L205 SmtUtils]: Spent 671.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 17 [2021-05-01 07:04:27,829 WARN L205 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 17 [2021-05-01 07:04:29,156 WARN L205 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 17 [2021-05-01 07:04:30,405 WARN L205 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 17 [2021-05-01 07:04:31,498 WARN L205 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 17 [2021-05-01 07:04:32,543 WARN L205 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 17 [2021-05-01 07:04:33,653 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 15 [2021-05-01 07:04:34,672 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 17 [2021-05-01 07:04:35,643 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 15 [2021-05-01 07:04:36,836 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 17 [2021-05-01 07:04:37,939 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 17 [2021-05-01 07:04:39,310 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 15 [2021-05-01 07:04:40,664 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 15 [2021-05-01 07:05:25,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:05:25,852 INFO L93 Difference]: Finished difference Result 658 states and 715 transitions. [2021-05-01 07:05:25,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-05-01 07:05:25,868 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.057142857142857) internal successors, (107), 34 states have internal predecessors, (107), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 228 [2021-05-01 07:05:25,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:05:25,871 INFO L225 Difference]: With dead ends: 658 [2021-05-01 07:05:25,871 INFO L226 Difference]: Without dead ends: 474 [2021-05-01 07:05:25,873 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 455 ImplicationChecksByTransitivity, 18678.1ms TimeCoverageRelationStatistics Valid=350, Invalid=3682, Unknown=0, NotChecked=0, Total=4032 [2021-05-01 07:05:25,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2021-05-01 07:05:26,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 365. [2021-05-01 07:05:26,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 323 states have (on average 1.0247678018575852) internal successors, (331), 324 states have internal predecessors, (331), 28 states have call successors, (28), 15 states have call predecessors, (28), 13 states have return successors, (27), 25 states have call predecessors, (27), 27 states have call successors, (27) [2021-05-01 07:05:26,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 386 transitions. [2021-05-01 07:05:26,230 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 386 transitions. Word has length 228 [2021-05-01 07:05:26,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:05:26,230 INFO L480 AbstractCegarLoop]: Abstraction has 365 states and 386 transitions. [2021-05-01 07:05:26,230 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.057142857142857) internal successors, (107), 34 states have internal predecessors, (107), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 07:05:26,230 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 386 transitions. [2021-05-01 07:05:26,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2021-05-01 07:05:26,232 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:05:26,232 INFO L519 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:05:26,232 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-05-01 07:05:26,232 INFO L428 AbstractCegarLoop]: === Iteration 46 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:05:26,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:05:26,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1294134189, now seen corresponding path program 43 times [2021-05-01 07:05:26,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:05:26,233 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [896578919] [2021-05-01 07:05:26,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:05:26,249 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 07:05:26,250 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 07:05:26,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:05:27,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:05:27,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:05:27,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:05:27,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-05-01 07:05:27,468 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 19 [2021-05-01 07:05:27,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:05:27,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 07:05:27,711 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 21 [2021-05-01 07:05:27,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:05:27,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 07:05:27,929 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 21 [2021-05-01 07:05:27,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:05:27,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 07:05:28,156 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 21 [2021-05-01 07:05:28,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:05:28,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 07:05:28,397 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 21 [2021-05-01 07:05:28,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:05:28,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 07:05:28,636 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 21 [2021-05-01 07:05:28,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:05:28,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 07:05:28,872 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 21 [2021-05-01 07:05:28,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:05:28,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 07:05:29,138 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 21 [2021-05-01 07:05:29,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:05:29,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 07:05:29,418 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 21 [2021-05-01 07:05:29,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:05:29,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 07:05:29,728 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 21 [2021-05-01 07:05:29,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:05:29,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 07:05:30,040 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 21 [2021-05-01 07:05:30,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:05:30,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 07:05:30,364 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 21 [2021-05-01 07:05:30,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:05:30,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 07:05:30,711 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 21 [2021-05-01 07:05:30,719 INFO L142 QuantifierPusher]: treesize reduction 11, result has 87.9 percent of original size [2021-05-01 07:05:30,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-05-01 07:05:31,639 WARN L205 SmtUtils]: Spent 666.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 35 [2021-05-01 07:05:31,647 INFO L142 QuantifierPusher]: treesize reduction 68, result has 46.0 percent of original size [2021-05-01 07:05:31,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:05:32,026 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 21 [2021-05-01 07:05:32,034 INFO L142 QuantifierPusher]: treesize reduction 47, result has 58.4 percent of original size [2021-05-01 07:05:32,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:05:32,710 WARN L205 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 32 [2021-05-01 07:05:32,718 INFO L142 QuantifierPusher]: treesize reduction 103, result has 34.8 percent of original size [2021-05-01 07:05:32,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-05-01 07:05:33,207 WARN L205 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 30 [2021-05-01 07:05:33,214 INFO L142 QuantifierPusher]: treesize reduction 103, result has 36.0 percent of original size [2021-05-01 07:05:33,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:05:33,766 WARN L205 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 32 [2021-05-01 07:05:33,773 INFO L142 QuantifierPusher]: treesize reduction 103, result has 36.0 percent of original size [2021-05-01 07:05:33,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:05:33,783 INFO L142 QuantifierPusher]: treesize reduction 86, result has 54.5 percent of original size [2021-05-01 07:05:33,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-05-01 07:05:34,358 WARN L205 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 34 [2021-05-01 07:05:34,368 INFO L142 QuantifierPusher]: treesize reduction 86, result has 54.5 percent of original size [2021-05-01 07:05:34,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-05-01 07:05:34,380 INFO L142 QuantifierPusher]: treesize reduction 86, result has 54.5 percent of original size [2021-05-01 07:05:34,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-05-01 07:05:34,970 WARN L205 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 34 [2021-05-01 07:05:34,999 INFO L142 QuantifierPusher]: treesize reduction 86, result has 54.5 percent of original size [2021-05-01 07:05:35,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-05-01 07:05:35,009 INFO L142 QuantifierPusher]: treesize reduction 86, result has 54.5 percent of original size [2021-05-01 07:05:35,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-05-01 07:05:35,572 WARN L205 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 34 [2021-05-01 07:05:35,581 INFO L142 QuantifierPusher]: treesize reduction 86, result has 54.5 percent of original size [2021-05-01 07:05:35,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-05-01 07:05:35,592 INFO L142 QuantifierPusher]: treesize reduction 86, result has 54.5 percent of original size [2021-05-01 07:05:35,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-05-01 07:05:36,180 WARN L205 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 33 [2021-05-01 07:05:36,187 INFO L142 QuantifierPusher]: treesize reduction 86, result has 54.5 percent of original size [2021-05-01 07:05:36,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-05-01 07:05:36,197 INFO L142 QuantifierPusher]: treesize reduction 86, result has 54.5 percent of original size [2021-05-01 07:05:36,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-05-01 07:05:36,776 WARN L205 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 34 [2021-05-01 07:05:36,783 INFO L142 QuantifierPusher]: treesize reduction 86, result has 54.5 percent of original size [2021-05-01 07:05:36,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-05-01 07:05:36,792 INFO L142 QuantifierPusher]: treesize reduction 86, result has 54.5 percent of original size [2021-05-01 07:05:36,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-05-01 07:05:37,381 WARN L205 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 34 [2021-05-01 07:05:37,389 INFO L142 QuantifierPusher]: treesize reduction 86, result has 54.5 percent of original size [2021-05-01 07:05:37,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-05-01 07:05:37,398 INFO L142 QuantifierPusher]: treesize reduction 86, result has 54.5 percent of original size [2021-05-01 07:05:37,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-05-01 07:05:37,985 WARN L205 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 34 [2021-05-01 07:05:37,993 INFO L142 QuantifierPusher]: treesize reduction 86, result has 54.5 percent of original size [2021-05-01 07:05:37,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-05-01 07:05:38,002 INFO L142 QuantifierPusher]: treesize reduction 86, result has 54.5 percent of original size [2021-05-01 07:05:38,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-05-01 07:05:38,651 WARN L205 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 34 [2021-05-01 07:05:38,660 INFO L142 QuantifierPusher]: treesize reduction 86, result has 54.5 percent of original size [2021-05-01 07:05:38,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-05-01 07:05:38,670 INFO L142 QuantifierPusher]: treesize reduction 86, result has 54.5 percent of original size [2021-05-01 07:05:38,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-05-01 07:05:39,393 WARN L205 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 34 [2021-05-01 07:05:39,402 INFO L142 QuantifierPusher]: treesize reduction 86, result has 54.5 percent of original size [2021-05-01 07:05:39,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-05-01 07:05:39,412 INFO L142 QuantifierPusher]: treesize reduction 86, result has 54.5 percent of original size [2021-05-01 07:05:39,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-05-01 07:05:40,132 WARN L205 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 34 [2021-05-01 07:05:40,142 INFO L142 QuantifierPusher]: treesize reduction 86, result has 54.5 percent of original size [2021-05-01 07:05:40,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-05-01 07:05:40,153 INFO L142 QuantifierPusher]: treesize reduction 86, result has 54.5 percent of original size [2021-05-01 07:05:40,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-05-01 07:05:40,889 WARN L205 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 34 [2021-05-01 07:05:40,897 INFO L142 QuantifierPusher]: treesize reduction 86, result has 54.5 percent of original size [2021-05-01 07:05:40,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-05-01 07:05:40,907 INFO L142 QuantifierPusher]: treesize reduction 86, result has 54.5 percent of original size [2021-05-01 07:05:40,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-05-01 07:05:41,744 WARN L205 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 34 [2021-05-01 07:05:41,753 INFO L142 QuantifierPusher]: treesize reduction 86, result has 54.5 percent of original size [2021-05-01 07:05:41,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-05-01 07:05:41,767 INFO L142 QuantifierPusher]: treesize reduction 68, result has 78.9 percent of original size [2021-05-01 07:05:41,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 254 [2021-05-01 07:05:43,199 WARN L205 SmtUtils]: Spent 886.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 59 [2021-05-01 07:05:43,209 INFO L142 QuantifierPusher]: treesize reduction 148, result has 49.8 percent of original size [2021-05-01 07:05:43,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 147 [2021-05-01 07:05:44,874 WARN L205 SmtUtils]: Spent 724.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 41 [2021-05-01 07:05:44,886 INFO L142 QuantifierPusher]: treesize reduction 101, result has 42.0 percent of original size [2021-05-01 07:05:44,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-05-01 07:05:45,947 WARN L205 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 28 [2021-05-01 07:05:45,962 INFO L142 QuantifierPusher]: treesize reduction 101, result has 42.9 percent of original size [2021-05-01 07:05:45,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-05-01 07:05:47,359 WARN L205 SmtUtils]: Spent 558.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 30 [2021-05-01 07:05:47,388 INFO L142 QuantifierPusher]: treesize reduction 101, result has 42.9 percent of original size [2021-05-01 07:05:47,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-05-01 07:05:47,412 INFO L142 QuantifierPusher]: treesize reduction 58, result has 79.9 percent of original size [2021-05-01 07:05:47,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 231 [2021-05-01 07:05:49,086 WARN L205 SmtUtils]: Spent 600.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 28 [2021-05-01 07:05:49,108 INFO L142 QuantifierPusher]: treesize reduction 58, result has 79.9 percent of original size [2021-05-01 07:05:49,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 231 [2021-05-01 07:05:49,140 INFO L142 QuantifierPusher]: treesize reduction 58, result has 79.9 percent of original size [2021-05-01 07:05:49,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 231 [2021-05-01 07:05:50,765 WARN L205 SmtUtils]: Spent 608.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 32 [2021-05-01 07:05:50,782 INFO L142 QuantifierPusher]: treesize reduction 58, result has 79.9 percent of original size [2021-05-01 07:05:50,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 231 [2021-05-01 07:05:50,805 INFO L142 QuantifierPusher]: treesize reduction 58, result has 79.9 percent of original size [2021-05-01 07:05:50,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 231 [2021-05-01 07:05:51,928 WARN L205 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 28 [2021-05-01 07:05:51,944 INFO L142 QuantifierPusher]: treesize reduction 58, result has 79.9 percent of original size [2021-05-01 07:05:51,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 231 [2021-05-01 07:05:51,968 INFO L142 QuantifierPusher]: treesize reduction 58, result has 79.9 percent of original size [2021-05-01 07:05:51,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 231 [2021-05-01 07:05:53,255 WARN L205 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 28 [2021-05-01 07:05:53,271 INFO L142 QuantifierPusher]: treesize reduction 58, result has 79.9 percent of original size [2021-05-01 07:05:53,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 231 [2021-05-01 07:05:53,293 INFO L142 QuantifierPusher]: treesize reduction 58, result has 79.9 percent of original size [2021-05-01 07:05:53,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 231 [2021-05-01 07:05:54,587 WARN L205 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 28 [2021-05-01 07:05:54,601 INFO L142 QuantifierPusher]: treesize reduction 58, result has 79.9 percent of original size [2021-05-01 07:05:54,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 231 [2021-05-01 07:05:54,625 INFO L142 QuantifierPusher]: treesize reduction 58, result has 79.9 percent of original size [2021-05-01 07:05:54,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 231 [2021-05-01 07:05:56,005 WARN L205 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 28 [2021-05-01 07:05:56,023 INFO L142 QuantifierPusher]: treesize reduction 58, result has 79.9 percent of original size [2021-05-01 07:05:56,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 231 [2021-05-01 07:05:56,081 INFO L142 QuantifierPusher]: treesize reduction 58, result has 79.9 percent of original size [2021-05-01 07:05:56,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 231 [2021-05-01 07:05:57,525 WARN L205 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 27 [2021-05-01 07:05:57,541 INFO L142 QuantifierPusher]: treesize reduction 58, result has 79.9 percent of original size [2021-05-01 07:05:57,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 231 [2021-05-01 07:05:57,584 INFO L142 QuantifierPusher]: treesize reduction 58, result has 79.9 percent of original size [2021-05-01 07:05:57,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 231 [2021-05-01 07:05:59,222 WARN L205 SmtUtils]: Spent 592.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 32 [2021-05-01 07:05:59,241 INFO L142 QuantifierPusher]: treesize reduction 58, result has 79.9 percent of original size [2021-05-01 07:05:59,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 231 [2021-05-01 07:05:59,265 INFO L142 QuantifierPusher]: treesize reduction 58, result has 79.9 percent of original size [2021-05-01 07:05:59,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 231 [2021-05-01 07:06:00,758 WARN L205 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 28 [2021-05-01 07:06:00,776 INFO L142 QuantifierPusher]: treesize reduction 58, result has 79.9 percent of original size [2021-05-01 07:06:00,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 231 [2021-05-01 07:06:00,809 INFO L142 QuantifierPusher]: treesize reduction 58, result has 79.9 percent of original size [2021-05-01 07:06:00,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 231 [2021-05-01 07:06:02,224 WARN L205 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 32 [2021-05-01 07:06:02,241 INFO L142 QuantifierPusher]: treesize reduction 58, result has 79.9 percent of original size [2021-05-01 07:06:02,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 231 [2021-05-01 07:06:02,264 INFO L142 QuantifierPusher]: treesize reduction 58, result has 79.9 percent of original size [2021-05-01 07:06:02,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 231 [2021-05-01 07:06:03,375 WARN L205 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 28 [2021-05-01 07:06:03,396 INFO L142 QuantifierPusher]: treesize reduction 58, result has 79.9 percent of original size [2021-05-01 07:06:03,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 231 [2021-05-01 07:06:03,413 INFO L142 QuantifierPusher]: treesize reduction 58, result has 79.9 percent of original size [2021-05-01 07:06:03,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 231 [2021-05-01 07:06:04,437 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 28 [2021-05-01 07:06:04,447 INFO L142 QuantifierPusher]: treesize reduction 58, result has 79.9 percent of original size [2021-05-01 07:06:04,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 231 [2021-05-01 07:06:04,491 INFO L142 QuantifierPusher]: treesize reduction 36, result has 95.1 percent of original size [2021-05-01 07:06:04,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 706 [2021-05-01 07:06:07,198 WARN L205 SmtUtils]: Spent 1.93 s on a formula simplification. DAG size of input: 153 DAG size of output: 56 [2021-05-01 07:06:07,221 INFO L142 QuantifierPusher]: treesize reduction 67, result has 79.0 percent of original size [2021-05-01 07:06:07,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 252 [2021-05-01 07:06:09,131 WARN L205 SmtUtils]: Spent 781.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 58 [2021-05-01 07:06:09,140 INFO L142 QuantifierPusher]: treesize reduction 36, result has 76.8 percent of original size [2021-05-01 07:06:09,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-05-01 07:06:10,344 WARN L205 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 44 [2021-05-01 07:06:10,356 INFO L142 QuantifierPusher]: treesize reduction 36, result has 77.2 percent of original size [2021-05-01 07:06:10,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-05-01 07:06:11,620 WARN L205 SmtUtils]: Spent 550.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 46 [2021-05-01 07:06:11,632 INFO L142 QuantifierPusher]: treesize reduction 42, result has 76.9 percent of original size [2021-05-01 07:06:11,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-05-01 07:06:12,911 WARN L205 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 50 [2021-05-01 07:06:12,923 INFO L142 QuantifierPusher]: treesize reduction 42, result has 76.9 percent of original size [2021-05-01 07:06:12,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-05-01 07:06:14,379 WARN L205 SmtUtils]: Spent 692.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 44 [2021-05-01 07:06:14,389 INFO L142 QuantifierPusher]: treesize reduction 42, result has 76.9 percent of original size [2021-05-01 07:06:14,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-05-01 07:06:15,912 WARN L205 SmtUtils]: Spent 664.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 50 [2021-05-01 07:06:15,925 INFO L142 QuantifierPusher]: treesize reduction 42, result has 76.9 percent of original size [2021-05-01 07:06:15,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-05-01 07:06:17,594 WARN L205 SmtUtils]: Spent 773.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 49 [2021-05-01 07:06:17,603 INFO L142 QuantifierPusher]: treesize reduction 42, result has 76.9 percent of original size [2021-05-01 07:06:17,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-05-01 07:06:19,007 WARN L205 SmtUtils]: Spent 585.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 44 [2021-05-01 07:06:19,017 INFO L142 QuantifierPusher]: treesize reduction 42, result has 76.9 percent of original size [2021-05-01 07:06:19,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-05-01 07:06:20,211 WARN L205 SmtUtils]: Spent 507.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2021-05-01 07:06:20,220 INFO L142 QuantifierPusher]: treesize reduction 42, result has 76.9 percent of original size [2021-05-01 07:06:20,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-05-01 07:06:21,434 WARN L205 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 48 [2021-05-01 07:06:21,443 INFO L142 QuantifierPusher]: treesize reduction 42, result has 76.9 percent of original size [2021-05-01 07:06:21,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-05-01 07:06:22,778 WARN L205 SmtUtils]: Spent 601.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 50 [2021-05-01 07:06:22,788 INFO L142 QuantifierPusher]: treesize reduction 42, result has 76.9 percent of original size [2021-05-01 07:06:22,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-05-01 07:06:24,801 WARN L205 SmtUtils]: Spent 895.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 44 [2021-05-01 07:06:24,816 INFO L142 QuantifierPusher]: treesize reduction 42, result has 76.9 percent of original size [2021-05-01 07:06:24,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-05-01 07:06:26,373 WARN L205 SmtUtils]: Spent 659.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 48 [2021-05-01 07:06:26,385 INFO L142 QuantifierPusher]: treesize reduction 42, result has 76.9 percent of original size [2021-05-01 07:06:26,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-05-01 07:06:28,096 WARN L205 SmtUtils]: Spent 773.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 44 [2021-05-01 07:06:28,115 INFO L142 QuantifierPusher]: treesize reduction 42, result has 76.9 percent of original size [2021-05-01 07:06:28,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-05-01 07:06:29,685 WARN L205 SmtUtils]: Spent 635.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2021-05-01 07:06:29,702 INFO L142 QuantifierPusher]: treesize reduction 19, result has 96.3 percent of original size [2021-05-01 07:06:29,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 498 [2021-05-01 07:06:32,803 WARN L205 SmtUtils]: Spent 1.96 s on a formula simplification. DAG size of input: 125 DAG size of output: 76 [2021-05-01 07:06:32,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:06:32,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 07:06:33,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:06:33,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:06:34,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:06:34,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:06:34,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:06:34,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:06:35,489 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2021-05-01 07:06:35,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:06:35,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:06:35,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:06:35,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:06:35,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-05-01 07:06:35,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:06:35,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:06:35,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:06:35,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-01 07:06:35,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:06:35,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:06:35,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:06:35,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-05-01 07:06:35,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:06:35,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:06:35,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:06:35,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-05-01 07:06:35,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:06:35,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:06:35,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:06:35,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-01 07:06:35,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:06:35,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:06:35,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:06:35,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-05-01 07:06:35,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:06:35,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:06:35,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:06:35,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-05-01 07:06:35,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:06:35,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:06:35,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:06:35,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-05-01 07:06:35,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:06:35,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:06:35,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:06:35,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-05-01 07:06:35,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:06:35,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:06:35,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:06:35,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-05-01 07:06:35,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:06:35,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:06:35,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:06:35,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-05-01 07:06:35,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:06:35,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:06:35,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:06:35,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-05-01 07:06:35,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:06:35,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:06:35,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:06:35,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-05-01 07:06:35,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:06:35,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:06:35,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:06:35,741 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-05-01 07:06:35,742 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:06:35,742 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [896578919] [2021-05-01 07:06:35,742 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [896578919] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:06:35,742 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:06:35,742 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [69] imperfect sequences [] total 69 [2021-05-01 07:06:35,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530047316] [2021-05-01 07:06:35,743 INFO L460 AbstractCegarLoop]: Interpolant automaton has 69 states [2021-05-01 07:06:35,743 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:06:35,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2021-05-01 07:06:35,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=283, Invalid=4409, Unknown=0, NotChecked=0, Total=4692 [2021-05-01 07:06:35,744 INFO L87 Difference]: Start difference. First operand 365 states and 386 transitions. Second operand has 69 states, 68 states have (on average 2.4558823529411766) internal successors, (167), 67 states have internal predecessors, (167), 15 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14)