/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/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 04:48:02,897 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 04:48:02,901 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 04:48:02,958 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-24 04:48:02,996 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 04:48:02,998 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 04:48:03,001 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 04:48:03,002 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 04:48:03,006 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 04:48:03,007 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 04:48:03,014 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 04:48:03,022 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 04:48:03,024 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 04:48:03,026 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 04:48:03,028 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 04:48:03,030 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 04:48:03,038 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-24 04:48:03,051 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 04:48:03,052 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 04:48:03,052 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 04:48:03,053 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-24 04:48:03,076 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 04:48:03,077 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 04:48:03,082 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 04:48:03,082 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 04:48:03,083 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 04:48:03,083 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 04:48:03,083 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 04:48:03,083 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 04:48:03,083 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 04:48:03,084 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 04:48:03,085 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 04:48:03,085 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 04:48:03,085 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 04:48:03,086 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 04:48:03,086 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 04:48:03,086 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 04:48:03,086 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 04:48:03,086 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 04:48:03,087 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 04:48:03,087 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 04:48:03,087 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 04:48:03,087 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 04:48:03,087 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 04:48:03,088 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 04:48:03,506 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 04:48:03,543 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 04:48:03,546 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 04:48:03,548 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 04:48:03,549 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 04:48:03,550 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i [2021-02-24 04:48:03,652 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46919544d/9f0ed2d34ebd42af8d414dbe310fba5f/FLAG6c6688358 [2021-02-24 04:48:04,227 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 04:48:04,228 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i [2021-02-24 04:48:04,249 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46919544d/9f0ed2d34ebd42af8d414dbe310fba5f/FLAG6c6688358 [2021-02-24 04:48:04,613 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46919544d/9f0ed2d34ebd42af8d414dbe310fba5f [2021-02-24 04:48:04,616 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 04:48:04,630 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 04:48:04,632 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 04:48:04,632 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 04:48:04,636 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 04:48:04,637 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:48:04" (1/1) ... [2021-02-24 04:48:04,639 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@581251ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:48:04, skipping insertion in model container [2021-02-24 04:48:04,639 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:48:04" (1/1) ... [2021-02-24 04:48:04,648 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 04:48:04,669 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 04:48:04,840 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i[893,906] [2021-02-24 04:48:04,863 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:48:04,873 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 04:48:04,890 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i[893,906] [2021-02-24 04:48:04,900 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:48:04,922 INFO L208 MainTranslator]: Completed translation [2021-02-24 04:48:04,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:48:04 WrapperNode [2021-02-24 04:48:04,923 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 04:48:04,924 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 04:48:04,925 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 04:48:04,925 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 04:48:04,940 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:48:04" (1/1) ... [2021-02-24 04:48:04,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:48:04" (1/1) ... [2021-02-24 04:48:04,949 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:48:04" (1/1) ... [2021-02-24 04:48:04,949 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:48:04" (1/1) ... [2021-02-24 04:48:04,956 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:48:04" (1/1) ... [2021-02-24 04:48:04,962 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:48:04" (1/1) ... [2021-02-24 04:48:04,964 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:48:04" (1/1) ... [2021-02-24 04:48:04,967 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 04:48:04,968 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 04:48:04,968 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 04:48:04,968 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 04:48:04,969 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:48:04" (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 [2021-02-24 04:48:05,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 04:48:05,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 04:48:05,059 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 04:48:05,059 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-02-24 04:48:05,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-24 04:48:05,059 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 04:48:05,059 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 04:48:05,059 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 04:48:05,060 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-02-24 04:48:05,060 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-02-24 04:48:05,060 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 04:48:05,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 04:48:05,060 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-02-24 04:48:05,061 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-24 04:48:05,061 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-24 04:48:05,061 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 04:48:05,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 04:48:05,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 04:48:05,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 04:48:05,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 04:48:05,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 04:48:05,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 04:48:05,604 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 04:48:05,605 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-02-24 04:48:05,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:48:05 BoogieIcfgContainer [2021-02-24 04:48:05,608 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 04:48:05,610 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 04:48:05,611 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 04:48:05,615 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 04:48:05,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 04:48:04" (1/3) ... [2021-02-24 04:48:05,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43cea527 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:48:05, skipping insertion in model container [2021-02-24 04:48:05,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:48:04" (2/3) ... [2021-02-24 04:48:05,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43cea527 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:48:05, skipping insertion in model container [2021-02-24 04:48:05,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:48:05" (3/3) ... [2021-02-24 04:48:05,619 INFO L111 eAbstractionObserver]: Analyzing ICFG SpamAssassin-loop.i [2021-02-24 04:48:05,628 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 04:48:05,633 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 04:48:05,654 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 04:48:05,692 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 04:48:05,692 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 04:48:05,693 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 04:48:05,693 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 04:48:05,693 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 04:48:05,693 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 04:48:05,693 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 04:48:05,693 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 04:48:05,714 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states. [2021-02-24 04:48:05,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-02-24 04:48:05,726 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:48:05,727 INFO L422 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, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:48:05,728 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:48:05,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:48:05,736 INFO L82 PathProgramCache]: Analyzing trace with hash 755720551, now seen corresponding path program 1 times [2021-02-24 04:48:05,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:48:05,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1230547523] [2021-02-24 04:48:05,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:48:05,836 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:48:05,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:06,085 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:06,086 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:06,089 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:06,090 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:06,093 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:06,094 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-24 04:48:06,120 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:06,122 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:48:06,136 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:06,139 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:48:06,154 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:06,155 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:06,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:48:06,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:06,222 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:06,222 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:06,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:48:06,235 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1230547523] [2021-02-24 04:48:06,237 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:48:06,238 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-24 04:48:06,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539030111] [2021-02-24 04:48:06,243 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-24 04:48:06,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:48:06,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-24 04:48:06,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-24 04:48:06,267 INFO L87 Difference]: Start difference. First operand 82 states. Second operand 6 states. [2021-02-24 04:48:06,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:48:06,920 INFO L93 Difference]: Finished difference Result 151 states and 218 transitions. [2021-02-24 04:48:06,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-24 04:48:06,922 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2021-02-24 04:48:06,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:48:06,933 INFO L225 Difference]: With dead ends: 151 [2021-02-24 04:48:06,933 INFO L226 Difference]: Without dead ends: 88 [2021-02-24 04:48:06,939 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-02-24 04:48:06,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2021-02-24 04:48:07,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 80. [2021-02-24 04:48:07,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2021-02-24 04:48:07,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 98 transitions. [2021-02-24 04:48:07,008 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 98 transitions. Word has length 32 [2021-02-24 04:48:07,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:48:07,009 INFO L480 AbstractCegarLoop]: Abstraction has 80 states and 98 transitions. [2021-02-24 04:48:07,009 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-24 04:48:07,009 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 98 transitions. [2021-02-24 04:48:07,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-02-24 04:48:07,011 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:48:07,012 INFO L422 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, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:48:07,012 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 04:48:07,012 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:48:07,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:48:07,013 INFO L82 PathProgramCache]: Analyzing trace with hash 790605812, now seen corresponding path program 1 times [2021-02-24 04:48:07,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:48:07,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1831753274] [2021-02-24 04:48:07,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:48:07,017 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:48:07,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:07,065 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:07,066 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:07,067 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:07,068 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:07,069 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:07,069 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:48:07,073 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:07,074 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:48:07,078 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:07,079 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:48:07,084 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:07,085 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:07,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:48:07,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:07,115 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:07,116 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:07,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:48:07,119 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1831753274] [2021-02-24 04:48:07,119 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:48:07,120 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-24 04:48:07,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926104270] [2021-02-24 04:48:07,121 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-24 04:48:07,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:48:07,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-24 04:48:07,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-24 04:48:07,122 INFO L87 Difference]: Start difference. First operand 80 states and 98 transitions. Second operand 6 states. [2021-02-24 04:48:07,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:48:07,528 INFO L93 Difference]: Finished difference Result 92 states and 109 transitions. [2021-02-24 04:48:07,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-24 04:48:07,528 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2021-02-24 04:48:07,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:48:07,532 INFO L225 Difference]: With dead ends: 92 [2021-02-24 04:48:07,532 INFO L226 Difference]: Without dead ends: 90 [2021-02-24 04:48:07,534 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-02-24 04:48:07,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2021-02-24 04:48:07,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 88. [2021-02-24 04:48:07,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2021-02-24 04:48:07,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 104 transitions. [2021-02-24 04:48:07,560 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 104 transitions. Word has length 32 [2021-02-24 04:48:07,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:48:07,560 INFO L480 AbstractCegarLoop]: Abstraction has 88 states and 104 transitions. [2021-02-24 04:48:07,561 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-24 04:48:07,561 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 104 transitions. [2021-02-24 04:48:07,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-02-24 04:48:07,562 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:48:07,562 INFO L422 BasicCegarLoop]: trace histogram [2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:48:07,563 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-24 04:48:07,563 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:48:07,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:48:07,564 INFO L82 PathProgramCache]: Analyzing trace with hash -955547883, now seen corresponding path program 1 times [2021-02-24 04:48:07,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:48:07,564 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1618668909] [2021-02-24 04:48:07,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:48:07,567 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:48:07,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:07,658 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:07,659 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:07,670 WARN L141 QuantifierPusher]: treesize reduction 9, result has 25.0 percent of original size [2021-02-24 04:48:07,671 WARN L147 QuantifierPusher]: treesize reduction 9, result has 25.0 percent of original size 3 [2021-02-24 04:48:07,674 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:07,675 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:48:07,680 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:07,681 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:48:07,689 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:07,689 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:07,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:48:07,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:07,728 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:07,729 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:07,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-24 04:48:07,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:07,736 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:07,736 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:07,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:48:07,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1618668909] [2021-02-24 04:48:07,740 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:48:07,740 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-24 04:48:07,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911244377] [2021-02-24 04:48:07,741 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-24 04:48:07,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:48:07,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-24 04:48:07,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-24 04:48:07,742 INFO L87 Difference]: Start difference. First operand 88 states and 104 transitions. Second operand 6 states. [2021-02-24 04:48:08,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:48:08,305 INFO L93 Difference]: Finished difference Result 123 states and 152 transitions. [2021-02-24 04:48:08,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-24 04:48:08,306 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2021-02-24 04:48:08,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:48:08,308 INFO L225 Difference]: With dead ends: 123 [2021-02-24 04:48:08,308 INFO L226 Difference]: Without dead ends: 121 [2021-02-24 04:48:08,309 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-02-24 04:48:08,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2021-02-24 04:48:08,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 107. [2021-02-24 04:48:08,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2021-02-24 04:48:08,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 132 transitions. [2021-02-24 04:48:08,337 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 132 transitions. Word has length 37 [2021-02-24 04:48:08,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:48:08,338 INFO L480 AbstractCegarLoop]: Abstraction has 107 states and 132 transitions. [2021-02-24 04:48:08,338 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-24 04:48:08,338 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 132 transitions. [2021-02-24 04:48:08,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-02-24 04:48:08,340 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:48:08,340 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:48:08,340 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-24 04:48:08,341 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:48:08,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:48:08,341 INFO L82 PathProgramCache]: Analyzing trace with hash 180959284, now seen corresponding path program 1 times [2021-02-24 04:48:08,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:48:08,342 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1446098231] [2021-02-24 04:48:08,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:48:08,344 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:48:08,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:08,382 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:08,382 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:08,383 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:08,384 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:48:08,388 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:08,389 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:48:08,389 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:08,390 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:48:08,396 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:08,398 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:48:08,404 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:08,405 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:48:08,412 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:08,413 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:08,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:48:08,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:08,451 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:08,452 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:08,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-24 04:48:08,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:08,459 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:08,459 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:08,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 04:48:08,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:08,465 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:08,466 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:08,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:48:08,470 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1446098231] [2021-02-24 04:48:08,470 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:48:08,471 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-24 04:48:08,471 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217992323] [2021-02-24 04:48:08,471 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-24 04:48:08,472 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:48:08,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-24 04:48:08,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-02-24 04:48:08,473 INFO L87 Difference]: Start difference. First operand 107 states and 132 transitions. Second operand 7 states. [2021-02-24 04:48:09,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:48:09,013 INFO L93 Difference]: Finished difference Result 113 states and 137 transitions. [2021-02-24 04:48:09,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-24 04:48:09,014 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 42 [2021-02-24 04:48:09,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:48:09,016 INFO L225 Difference]: With dead ends: 113 [2021-02-24 04:48:09,016 INFO L226 Difference]: Without dead ends: 111 [2021-02-24 04:48:09,017 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-02-24 04:48:09,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-02-24 04:48:09,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2021-02-24 04:48:09,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2021-02-24 04:48:09,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 135 transitions. [2021-02-24 04:48:09,047 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 135 transitions. Word has length 42 [2021-02-24 04:48:09,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:48:09,048 INFO L480 AbstractCegarLoop]: Abstraction has 111 states and 135 transitions. [2021-02-24 04:48:09,048 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-24 04:48:09,048 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 135 transitions. [2021-02-24 04:48:09,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-02-24 04:48:09,050 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:48:09,050 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:48:09,050 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-24 04:48:09,050 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:48:09,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:48:09,051 INFO L82 PathProgramCache]: Analyzing trace with hash -2081674008, now seen corresponding path program 1 times [2021-02-24 04:48:09,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:48:09,052 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [535600785] [2021-02-24 04:48:09,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:48:09,054 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:48:09,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:09,091 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:09,092 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:09,093 WARN L141 QuantifierPusher]: treesize reduction 4, result has 42.9 percent of original size [2021-02-24 04:48:09,094 WARN L147 QuantifierPusher]: treesize reduction 4, result has 42.9 percent of original size 3 [2021-02-24 04:48:09,097 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:09,098 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:48:09,103 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:09,103 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:48:09,108 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:09,109 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:09,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:48:09,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:09,137 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:09,138 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:09,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-24 04:48:09,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:09,144 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:09,145 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:09,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 04:48:09,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:09,150 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:09,151 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:09,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-24 04:48:09,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:09,156 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:09,157 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:09,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:48:09,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [535600785] [2021-02-24 04:48:09,161 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:48:09,161 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-24 04:48:09,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640115519] [2021-02-24 04:48:09,162 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-24 04:48:09,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:48:09,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-24 04:48:09,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-24 04:48:09,163 INFO L87 Difference]: Start difference. First operand 111 states and 135 transitions. Second operand 6 states. [2021-02-24 04:48:09,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:48:09,743 INFO L93 Difference]: Finished difference Result 142 states and 179 transitions. [2021-02-24 04:48:09,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-24 04:48:09,744 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 47 [2021-02-24 04:48:09,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:48:09,746 INFO L225 Difference]: With dead ends: 142 [2021-02-24 04:48:09,747 INFO L226 Difference]: Without dead ends: 140 [2021-02-24 04:48:09,747 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-02-24 04:48:09,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-02-24 04:48:09,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 132. [2021-02-24 04:48:09,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2021-02-24 04:48:09,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 169 transitions. [2021-02-24 04:48:09,787 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 169 transitions. Word has length 47 [2021-02-24 04:48:09,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:48:09,788 INFO L480 AbstractCegarLoop]: Abstraction has 132 states and 169 transitions. [2021-02-24 04:48:09,788 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-24 04:48:09,788 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 169 transitions. [2021-02-24 04:48:09,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-02-24 04:48:09,791 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:48:09,791 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 5, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:48:09,791 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-24 04:48:09,792 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:48:09,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:48:09,792 INFO L82 PathProgramCache]: Analyzing trace with hash -820038974, now seen corresponding path program 1 times [2021-02-24 04:48:09,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:48:09,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1015725338] [2021-02-24 04:48:09,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:48:09,838 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:09,857 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-24 04:48:09,865 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:09,868 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-24 04:48:09,890 WARN L141 QuantifierPusher]: treesize reduction 15, result has 72.7 percent of original size [2021-02-24 04:48:09,911 INFO L723 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2021-02-24 04:48:09,917 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:09,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:09,922 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:09,936 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-02-24 04:48:09,941 WARN L147 QuantifierPusher]: treesize reduction 15, result has 72.7 percent of original size 40 [2021-02-24 04:48:09,949 WARN L141 QuantifierPusher]: treesize reduction 19, result has 79.3 percent of original size [2021-02-24 04:48:09,955 WARN L147 QuantifierPusher]: treesize reduction 19, result has 79.3 percent of original size 73 [2021-02-24 04:48:09,956 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-02-24 04:48:09,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:10,018 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:10,020 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:10,024 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:10,024 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:48:10,033 WARN L141 QuantifierPusher]: treesize reduction 9, result has 25.0 percent of original size [2021-02-24 04:48:10,034 WARN L147 QuantifierPusher]: treesize reduction 9, result has 25.0 percent of original size 3 [2021-02-24 04:48:10,039 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:10,040 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:48:10,048 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:10,049 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:48:10,056 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:10,057 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:10,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:48:10,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:10,120 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:10,121 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:10,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-24 04:48:10,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:10,139 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:10,141 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:10,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:48:10,156 WARN L141 QuantifierPusher]: treesize reduction 8, result has 89.0 percent of original size [2021-02-24 04:48:10,163 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:10,166 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:10,167 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-24 04:48:10,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:10,171 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:10,171 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:48:10,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:10,178 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:10,179 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:48:10,189 WARN L147 QuantifierPusher]: treesize reduction 8, result has 89.0 percent of original size 65 [2021-02-24 04:48:10,268 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:10,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:10,270 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:10,277 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-24 04:48:10,282 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-24 04:48:10,321 WARN L141 QuantifierPusher]: treesize reduction 1, result has 97.4 percent of original size [2021-02-24 04:48:10,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:10,324 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:10,325 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-24 04:48:10,327 WARN L147 QuantifierPusher]: treesize reduction 1, result has 97.4 percent of original size 38 [2021-02-24 04:48:10,376 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:10,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:10,384 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:10,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:10,386 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:10,386 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-24 04:48:10,389 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-24 04:48:10,391 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-24 04:48:10,425 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:10,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:10,430 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:10,432 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-02-24 04:48:10,434 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-24 04:48:10,471 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:10,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:10,475 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:10,477 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-02-24 04:48:10,478 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-24 04:48:10,523 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:10,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:10,527 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:10,529 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-02-24 04:48:10,531 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-02-24 04:48:10,569 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:10,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:10,573 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:10,574 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-02-24 04:48:10,576 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-24 04:48:10,580 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:10,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:10,591 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:10,593 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-24 04:48:10,594 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-02-24 04:48:10,627 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:10,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:10,634 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:10,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:10,638 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:10,640 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-24 04:48:10,641 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-02-24 04:48:10,643 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-02-24 04:48:10,695 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:10,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:10,700 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:10,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:10,705 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:10,707 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-24 04:48:10,708 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-02-24 04:48:10,710 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-02-24 04:48:10,768 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:10,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:10,773 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:10,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:10,778 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:10,779 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-24 04:48:10,781 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-02-24 04:48:10,783 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-02-24 04:48:10,847 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:10,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:10,852 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:10,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:10,856 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:10,857 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-24 04:48:10,859 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-02-24 04:48:10,861 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-02-24 04:48:10,922 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:10,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:10,926 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:10,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:10,930 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:10,932 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-24 04:48:10,933 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-02-24 04:48:10,935 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-02-24 04:48:10,938 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:10,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:10,940 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:10,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:10,944 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:10,945 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-24 04:48:10,947 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:48:10,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:10,957 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:10,959 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-02-24 04:48:10,961 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-02-24 04:48:10,975 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:10,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:10,977 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:10,977 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:48:10,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:10,978 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:10,979 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 04:48:10,980 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-24 04:48:11,034 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:11,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:11,036 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:11,036 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 04:48:11,037 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-24 04:48:11,090 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:11,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:11,091 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:11,092 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 04:48:11,093 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-24 04:48:11,153 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:11,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:11,166 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:11,167 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 04:48:11,168 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-24 04:48:11,223 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:11,223 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:11,224 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:11,224 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 04:48:11,225 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-24 04:48:11,227 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:11,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:11,229 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:11,230 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 04:48:11,231 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:11,231 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:11,232 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:48:11,233 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-24 04:48:11,288 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:11,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:11,290 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:11,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:11,292 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:11,292 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 04:48:11,293 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-24 04:48:11,294 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-24 04:48:11,344 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:11,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:11,347 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:11,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:11,348 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:11,349 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 04:48:11,350 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-24 04:48:11,351 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-24 04:48:11,437 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:11,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:11,439 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:11,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:11,440 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:11,441 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 04:48:11,442 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-24 04:48:11,442 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-24 04:48:11,512 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:11,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:11,513 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:11,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:11,515 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:11,515 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 04:48:11,516 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-24 04:48:11,517 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-02-24 04:48:11,583 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:11,584 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:11,584 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:11,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:11,586 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:11,586 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 04:48:11,587 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-24 04:48:11,588 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-02-24 04:48:11,589 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:11,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:11,590 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:11,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:11,591 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:11,592 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 04:48:11,593 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-02-24 04:48:11,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:11,596 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:11,597 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-02-24 04:48:11,598 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-02-24 04:48:11,653 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:11,653 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-24 04:48:11,690 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:11,691 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 04:48:11,729 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:11,730 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-24 04:48:11,767 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:11,768 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-24 04:48:11,811 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:11,813 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 04:48:11,864 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:11,865 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-24 04:48:11,865 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:11,866 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:11,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1015725338] [2021-02-24 04:48:11,867 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:48:11,867 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-02-24 04:48:11,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596473451] [2021-02-24 04:48:11,868 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-02-24 04:48:11,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:48:11,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-02-24 04:48:11,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=813, Unknown=0, NotChecked=0, Total=930 [2021-02-24 04:48:11,869 INFO L87 Difference]: Start difference. First operand 132 states and 169 transitions. Second operand 29 states. [2021-02-24 04:48:13,890 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 54 [2021-02-24 04:48:17,827 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2021-02-24 04:48:23,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:48:23,471 INFO L93 Difference]: Finished difference Result 272 states and 354 transitions. [2021-02-24 04:48:23,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-02-24 04:48:23,472 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 65 [2021-02-24 04:48:23,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:48:23,477 INFO L225 Difference]: With dead ends: 272 [2021-02-24 04:48:23,477 INFO L226 Difference]: Without dead ends: 270 [2021-02-24 04:48:23,481 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 13 SyntacticMatches, 4 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2483 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=839, Invalid=6133, Unknown=0, NotChecked=0, Total=6972 [2021-02-24 04:48:23,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2021-02-24 04:48:23,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 207. [2021-02-24 04:48:23,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207 states. [2021-02-24 04:48:23,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 268 transitions. [2021-02-24 04:48:23,546 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 268 transitions. Word has length 65 [2021-02-24 04:48:23,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:48:23,550 INFO L480 AbstractCegarLoop]: Abstraction has 207 states and 268 transitions. [2021-02-24 04:48:23,550 INFO L481 AbstractCegarLoop]: Interpolant automaton has 29 states. [2021-02-24 04:48:23,550 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 268 transitions. [2021-02-24 04:48:23,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-02-24 04:48:23,560 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:48:23,561 INFO L422 BasicCegarLoop]: trace histogram [7, 6, 6, 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, 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, 1, 1] [2021-02-24 04:48:23,561 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-24 04:48:23,561 INFO L428 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:48:23,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:48:23,562 INFO L82 PathProgramCache]: Analyzing trace with hash -1680209766, now seen corresponding path program 1 times [2021-02-24 04:48:23,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:48:23,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1748228090] [2021-02-24 04:48:23,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:48:23,565 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:48:23,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:23,632 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:23,632 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:23,633 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:23,633 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:48:23,637 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:23,637 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:48:23,651 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:23,651 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:48:23,659 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:23,659 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:48:23,665 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:23,666 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:48:23,677 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:23,677 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:48:23,684 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:23,684 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:23,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:48:23,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:23,739 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:23,741 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:23,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-24 04:48:23,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:23,753 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:23,754 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:23,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 04:48:23,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:23,764 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:23,766 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:23,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 04:48:23,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:23,777 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:23,779 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:23,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-24 04:48:23,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:23,790 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:23,791 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:23,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 04:48:23,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:23,803 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:23,804 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:23,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-24 04:48:23,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:23,813 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:23,814 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:23,828 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-02-24 04:48:23,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1748228090] [2021-02-24 04:48:23,829 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:48:23,829 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-24 04:48:23,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264342824] [2021-02-24 04:48:23,829 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-24 04:48:23,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:48:23,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-24 04:48:23,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-02-24 04:48:23,831 INFO L87 Difference]: Start difference. First operand 207 states and 268 transitions. Second operand 9 states. [2021-02-24 04:48:24,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:48:24,754 INFO L93 Difference]: Finished difference Result 245 states and 313 transitions. [2021-02-24 04:48:24,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-24 04:48:24,755 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 71 [2021-02-24 04:48:24,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:48:24,758 INFO L225 Difference]: With dead ends: 245 [2021-02-24 04:48:24,759 INFO L226 Difference]: Without dead ends: 243 [2021-02-24 04:48:24,759 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2021-02-24 04:48:24,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2021-02-24 04:48:24,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 224. [2021-02-24 04:48:24,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2021-02-24 04:48:24,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 286 transitions. [2021-02-24 04:48:24,822 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 286 transitions. Word has length 71 [2021-02-24 04:48:24,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:48:24,822 INFO L480 AbstractCegarLoop]: Abstraction has 224 states and 286 transitions. [2021-02-24 04:48:24,822 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-24 04:48:24,823 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 286 transitions. [2021-02-24 04:48:24,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-02-24 04:48:24,824 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:48:24,824 INFO L422 BasicCegarLoop]: trace histogram [8, 7, 7, 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, 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, 1, 1, 1, 1] [2021-02-24 04:48:24,825 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-24 04:48:24,825 INFO L428 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:48:24,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:48:24,825 INFO L82 PathProgramCache]: Analyzing trace with hash -1174213054, now seen corresponding path program 1 times [2021-02-24 04:48:24,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:48:24,826 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1074709133] [2021-02-24 04:48:24,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:48:24,828 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:48:24,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:24,863 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:24,863 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:24,864 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:24,864 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:48:24,867 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:24,868 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:48:24,872 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:24,872 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:48:24,878 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:24,878 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:48:24,884 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:24,885 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:48:24,892 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:24,893 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:24,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:48:24,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:24,923 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:24,924 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:24,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-24 04:48:24,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:24,928 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:24,928 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:24,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 04:48:24,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:24,932 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:24,932 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:24,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 04:48:24,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:24,936 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:24,937 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:24,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-24 04:48:24,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:24,941 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:24,942 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:24,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 04:48:24,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:24,945 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:24,946 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:24,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-24 04:48:24,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:24,950 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:24,951 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:24,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-02-24 04:48:24,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:24,956 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:24,957 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:24,964 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-02-24 04:48:24,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1074709133] [2021-02-24 04:48:24,964 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:48:24,964 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-24 04:48:24,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313998720] [2021-02-24 04:48:24,965 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-24 04:48:24,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:48:24,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-24 04:48:24,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-02-24 04:48:24,966 INFO L87 Difference]: Start difference. First operand 224 states and 286 transitions. Second operand 8 states. [2021-02-24 04:48:25,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:48:25,751 INFO L93 Difference]: Finished difference Result 238 states and 302 transitions. [2021-02-24 04:48:25,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-24 04:48:25,751 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 76 [2021-02-24 04:48:25,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:48:25,757 INFO L225 Difference]: With dead ends: 238 [2021-02-24 04:48:25,757 INFO L226 Difference]: Without dead ends: 236 [2021-02-24 04:48:25,758 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2021-02-24 04:48:25,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2021-02-24 04:48:25,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 229. [2021-02-24 04:48:25,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2021-02-24 04:48:25,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 291 transitions. [2021-02-24 04:48:25,834 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 291 transitions. Word has length 76 [2021-02-24 04:48:25,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:48:25,834 INFO L480 AbstractCegarLoop]: Abstraction has 229 states and 291 transitions. [2021-02-24 04:48:25,834 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-24 04:48:25,835 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 291 transitions. [2021-02-24 04:48:25,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-02-24 04:48:25,838 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:48:25,838 INFO L422 BasicCegarLoop]: trace histogram [9, 8, 8, 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, 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, 1, 1, 1, 1, 1, 1] [2021-02-24 04:48:25,838 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-24 04:48:25,838 INFO L428 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:48:25,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:48:25,839 INFO L82 PathProgramCache]: Analyzing trace with hash 426535258, now seen corresponding path program 1 times [2021-02-24 04:48:25,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:48:25,839 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [15605786] [2021-02-24 04:48:25,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:48:25,846 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:48:25,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:25,930 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:25,931 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:25,931 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:25,933 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:48:25,937 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:25,937 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:48:25,945 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:25,945 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:48:25,953 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:25,954 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:48:25,965 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:25,966 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:48:25,974 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:25,974 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:48:25,982 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:25,982 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:48:25,991 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:25,992 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:26,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:48:26,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:26,021 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:26,022 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:26,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-24 04:48:26,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:26,026 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:26,027 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:26,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 04:48:26,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:26,031 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:26,031 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:26,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 04:48:26,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:26,035 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:26,035 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:26,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-24 04:48:26,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:26,039 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:26,040 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:26,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 04:48:26,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:26,044 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:26,044 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:26,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-24 04:48:26,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:26,048 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:26,049 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:26,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-02-24 04:48:26,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:26,053 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:26,053 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:26,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-02-24 04:48:26,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:26,057 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:26,057 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:26,067 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-02-24 04:48:26,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [15605786] [2021-02-24 04:48:26,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:48:26,068 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-24 04:48:26,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771083567] [2021-02-24 04:48:26,068 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-24 04:48:26,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:48:26,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-24 04:48:26,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-24 04:48:26,069 INFO L87 Difference]: Start difference. First operand 229 states and 291 transitions. Second operand 10 states. [2021-02-24 04:48:27,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:48:27,023 INFO L93 Difference]: Finished difference Result 255 states and 320 transitions. [2021-02-24 04:48:27,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-24 04:48:27,024 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 81 [2021-02-24 04:48:27,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:48:27,026 INFO L225 Difference]: With dead ends: 255 [2021-02-24 04:48:27,026 INFO L226 Difference]: Without dead ends: 253 [2021-02-24 04:48:27,027 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=81, Invalid=261, Unknown=0, NotChecked=0, Total=342 [2021-02-24 04:48:27,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2021-02-24 04:48:27,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 242. [2021-02-24 04:48:27,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2021-02-24 04:48:27,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 306 transitions. [2021-02-24 04:48:27,091 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 306 transitions. Word has length 81 [2021-02-24 04:48:27,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:48:27,092 INFO L480 AbstractCegarLoop]: Abstraction has 242 states and 306 transitions. [2021-02-24 04:48:27,092 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-24 04:48:27,092 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 306 transitions. [2021-02-24 04:48:27,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-02-24 04:48:27,093 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:48:27,093 INFO L422 BasicCegarLoop]: trace histogram [10, 9, 9, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:48:27,094 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-24 04:48:27,094 INFO L428 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:48:27,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:48:27,095 INFO L82 PathProgramCache]: Analyzing trace with hash 13186306, now seen corresponding path program 1 times [2021-02-24 04:48:27,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:48:27,095 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [838178132] [2021-02-24 04:48:27,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:48:27,097 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:48:27,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:27,124 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:27,125 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:27,126 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:27,126 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:48:27,129 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:27,130 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:48:27,134 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:27,135 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:48:27,141 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:27,141 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:48:27,148 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:27,148 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:48:27,156 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:27,159 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:27,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:48:27,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:27,198 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:27,199 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:27,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-24 04:48:27,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:27,202 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:27,203 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:27,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 04:48:27,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:27,206 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:27,213 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:27,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 04:48:27,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:27,216 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:27,217 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:27,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-24 04:48:27,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:27,220 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:27,221 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:27,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 04:48:27,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:27,224 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:27,225 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:27,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-24 04:48:27,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:27,228 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:27,229 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:27,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-02-24 04:48:27,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:27,233 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:27,233 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:27,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-02-24 04:48:27,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:27,236 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:27,237 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:27,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-02-24 04:48:27,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:27,241 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:27,241 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:27,249 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-02-24 04:48:27,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [838178132] [2021-02-24 04:48:27,249 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:48:27,250 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-24 04:48:27,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278992416] [2021-02-24 04:48:27,250 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-24 04:48:27,250 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:48:27,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-24 04:48:27,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-02-24 04:48:27,251 INFO L87 Difference]: Start difference. First operand 242 states and 306 transitions. Second operand 8 states. [2021-02-24 04:48:28,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:48:28,059 INFO L93 Difference]: Finished difference Result 259 states and 323 transitions. [2021-02-24 04:48:28,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-24 04:48:28,059 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 86 [2021-02-24 04:48:28,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:48:28,062 INFO L225 Difference]: With dead ends: 259 [2021-02-24 04:48:28,062 INFO L226 Difference]: Without dead ends: 257 [2021-02-24 04:48:28,063 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2021-02-24 04:48:28,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2021-02-24 04:48:28,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 247. [2021-02-24 04:48:28,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2021-02-24 04:48:28,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 311 transitions. [2021-02-24 04:48:28,130 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 311 transitions. Word has length 86 [2021-02-24 04:48:28,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:48:28,130 INFO L480 AbstractCegarLoop]: Abstraction has 247 states and 311 transitions. [2021-02-24 04:48:28,130 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-24 04:48:28,130 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 311 transitions. [2021-02-24 04:48:28,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-02-24 04:48:28,132 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:48:28,132 INFO L422 BasicCegarLoop]: trace histogram [11, 10, 10, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:48:28,132 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-02-24 04:48:28,133 INFO L428 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:48:28,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:48:28,133 INFO L82 PathProgramCache]: Analyzing trace with hash 530288701, now seen corresponding path program 1 times [2021-02-24 04:48:28,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:48:28,133 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [674255526] [2021-02-24 04:48:28,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:48:28,135 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:48:28,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:28,170 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:28,170 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:28,171 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:28,171 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:48:28,175 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:28,175 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:48:28,182 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:28,183 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:48:28,191 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:28,191 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:48:28,200 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:28,200 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:48:28,208 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:28,208 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:48:28,217 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:28,217 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:48:28,227 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:28,228 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:48:28,240 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:28,240 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:48:28,254 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:28,254 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:28,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:48:28,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:28,288 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:28,288 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:28,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-24 04:48:28,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:28,293 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:28,293 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:28,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 04:48:28,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:28,297 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:28,297 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:28,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 04:48:28,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:28,303 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:28,304 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:28,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-24 04:48:28,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:28,307 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:28,308 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:28,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 04:48:28,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:28,313 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:28,314 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:28,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-24 04:48:28,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:28,317 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:28,317 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:28,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-02-24 04:48:28,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:28,322 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:28,322 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:28,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-02-24 04:48:28,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:28,328 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:28,328 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:28,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-02-24 04:48:28,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:28,332 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:28,332 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:28,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-24 04:48:28,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:28,341 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:28,342 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:28,356 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-02-24 04:48:28,356 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [674255526] [2021-02-24 04:48:28,356 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:48:28,356 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-02-24 04:48:28,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623189481] [2021-02-24 04:48:28,357 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-24 04:48:28,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:48:28,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-24 04:48:28,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-02-24 04:48:28,358 INFO L87 Difference]: Start difference. First operand 247 states and 311 transitions. Second operand 12 states. [2021-02-24 04:48:29,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:48:29,660 INFO L93 Difference]: Finished difference Result 271 states and 336 transitions. [2021-02-24 04:48:29,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-24 04:48:29,660 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 97 [2021-02-24 04:48:29,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:48:29,663 INFO L225 Difference]: With dead ends: 271 [2021-02-24 04:48:29,663 INFO L226 Difference]: Without dead ends: 269 [2021-02-24 04:48:29,664 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=120, Invalid=432, Unknown=0, NotChecked=0, Total=552 [2021-02-24 04:48:29,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2021-02-24 04:48:29,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 258. [2021-02-24 04:48:29,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2021-02-24 04:48:29,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 322 transitions. [2021-02-24 04:48:29,718 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 322 transitions. Word has length 97 [2021-02-24 04:48:29,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:48:29,718 INFO L480 AbstractCegarLoop]: Abstraction has 258 states and 322 transitions. [2021-02-24 04:48:29,718 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-24 04:48:29,718 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 322 transitions. [2021-02-24 04:48:29,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-02-24 04:48:29,720 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:48:29,720 INFO L422 BasicCegarLoop]: trace histogram [11, 10, 10, 2, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:48:29,720 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-02-24 04:48:29,720 INFO L428 AbstractCegarLoop]: === Iteration 12 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:48:29,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:48:29,721 INFO L82 PathProgramCache]: Analyzing trace with hash -306540281, now seen corresponding path program 1 times [2021-02-24 04:48:29,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:48:29,721 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [637522416] [2021-02-24 04:48:29,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:48:29,735 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:29,737 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-24 04:48:29,739 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:29,741 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-24 04:48:29,754 WARN L141 QuantifierPusher]: treesize reduction 15, result has 72.7 percent of original size [2021-02-24 04:48:29,755 INFO L723 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2021-02-24 04:48:29,757 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:29,757 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:29,759 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:29,765 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-02-24 04:48:29,772 WARN L147 QuantifierPusher]: treesize reduction 15, result has 72.7 percent of original size 40 [2021-02-24 04:48:29,777 WARN L141 QuantifierPusher]: treesize reduction 19, result has 79.3 percent of original size [2021-02-24 04:48:29,781 WARN L147 QuantifierPusher]: treesize reduction 19, result has 79.3 percent of original size 73 [2021-02-24 04:48:29,782 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-02-24 04:48:29,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:29,824 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:29,825 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:29,825 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:29,826 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:48:29,829 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:29,829 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:48:29,834 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:29,834 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:48:29,840 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:29,840 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:48:29,846 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:29,847 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:48:29,853 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:29,854 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:29,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:48:29,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:29,887 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:29,887 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:29,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-24 04:48:29,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:29,891 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:29,892 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:29,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-02-24 04:48:29,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:29,896 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:29,897 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:29,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-02-24 04:48:29,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:29,901 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:29,901 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:29,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-02-24 04:48:29,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:29,905 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:29,906 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:29,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-02-24 04:48:29,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:29,909 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:29,910 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:29,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-02-24 04:48:29,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:29,913 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:29,914 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:29,919 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-02-24 04:48:29,923 WARN L141 QuantifierPusher]: treesize reduction 1, result has 98.6 percent of original size [2021-02-24 04:48:29,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:29,928 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:29,929 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:48:29,930 WARN L147 QuantifierPusher]: treesize reduction 1, result has 98.6 percent of original size 72 [2021-02-24 04:48:29,931 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:29,932 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:48:29,953 WARN L141 QuantifierPusher]: treesize reduction 1, result has 92.3 percent of original size [2021-02-24 04:48:29,953 WARN L147 QuantifierPusher]: treesize reduction 1, result has 92.3 percent of original size 12 [2021-02-24 04:48:29,971 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:29,973 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:29,973 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:29,975 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:48:29,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:29,977 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:29,978 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-24 04:48:29,979 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-24 04:48:30,012 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:30,014 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,015 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-24 04:48:30,015 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-24 04:48:30,041 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:30,046 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,047 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-24 04:48:30,048 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-24 04:48:30,077 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:30,080 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,081 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-24 04:48:30,082 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-24 04:48:30,108 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:30,110 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,110 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-24 04:48:30,111 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-24 04:48:30,116 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:30,124 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,124 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:48:30,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:30,127 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,128 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-24 04:48:30,129 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-24 04:48:30,146 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:30,148 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,148 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-24 04:48:30,149 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-24 04:48:30,181 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:30,182 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,183 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-24 04:48:30,183 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-24 04:48:30,209 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,211 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:30,211 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,212 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-24 04:48:30,213 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 04:48:30,242 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:30,243 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,244 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-24 04:48:30,244 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 04:48:30,277 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:30,278 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,278 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-24 04:48:30,279 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 04:48:30,280 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:30,284 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,284 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 04:48:30,285 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-24 04:48:30,317 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:30,320 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,320 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 04:48:30,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:30,321 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,322 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 04:48:30,323 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-02-24 04:48:30,358 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:30,359 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,360 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 04:48:30,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:30,361 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,361 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 04:48:30,364 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-02-24 04:48:30,420 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,421 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:30,421 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,422 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 04:48:30,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:30,423 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,423 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 04:48:30,424 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-02-24 04:48:30,470 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:30,471 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,472 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 04:48:30,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:30,473 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,473 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 04:48:30,474 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-24 04:48:30,526 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:30,527 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,528 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 04:48:30,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:30,529 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,529 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 04:48:30,530 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-24 04:48:30,531 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:30,534 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,535 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-24 04:48:30,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:30,538 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,538 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 04:48:30,539 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-02-24 04:48:30,593 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:30,594 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,595 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-24 04:48:30,596 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 04:48:30,624 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:30,625 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,626 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-24 04:48:30,626 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 04:48:30,670 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:30,670 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,671 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-24 04:48:30,671 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 04:48:30,718 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,718 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:30,719 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,719 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-24 04:48:30,720 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-02-24 04:48:30,776 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:30,777 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,785 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-24 04:48:30,785 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-02-24 04:48:30,787 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:30,791 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,792 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-24 04:48:30,792 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-02-24 04:48:30,837 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:30,837 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,838 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-24 04:48:30,838 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-24 04:48:30,889 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:30,895 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,898 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-24 04:48:30,900 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-02-24 04:48:30,956 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,957 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:30,958 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:30,962 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-24 04:48:30,962 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-02-24 04:48:31,021 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:31,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:31,022 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:31,023 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-24 04:48:31,024 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-24 04:48:31,085 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:31,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:31,099 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:31,099 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-24 04:48:31,100 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-02-24 04:48:31,163 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:31,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:31,165 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:31,166 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-24 04:48:31,167 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-02-24 04:48:31,168 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:31,168 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:31,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [637522416] [2021-02-24 04:48:31,169 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:48:31,169 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-02-24 04:48:31,169 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765823162] [2021-02-24 04:48:31,169 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-02-24 04:48:31,169 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:48:31,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-02-24 04:48:31,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=819, Unknown=0, NotChecked=0, Total=930 [2021-02-24 04:48:31,170 INFO L87 Difference]: Start difference. First operand 258 states and 322 transitions. Second operand 29 states. [2021-02-24 04:48:38,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:48:38,057 INFO L93 Difference]: Finished difference Result 316 states and 395 transitions. [2021-02-24 04:48:38,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-02-24 04:48:38,058 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 99 [2021-02-24 04:48:38,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:48:38,061 INFO L225 Difference]: With dead ends: 316 [2021-02-24 04:48:38,061 INFO L226 Difference]: Without dead ends: 314 [2021-02-24 04:48:38,064 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 27 SyntacticMatches, 4 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2806 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=930, Invalid=7260, Unknown=0, NotChecked=0, Total=8190 [2021-02-24 04:48:38,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2021-02-24 04:48:38,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 262. [2021-02-24 04:48:38,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2021-02-24 04:48:38,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 325 transitions. [2021-02-24 04:48:38,171 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 325 transitions. Word has length 99 [2021-02-24 04:48:38,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:48:38,172 INFO L480 AbstractCegarLoop]: Abstraction has 262 states and 325 transitions. [2021-02-24 04:48:38,172 INFO L481 AbstractCegarLoop]: Interpolant automaton has 29 states. [2021-02-24 04:48:38,172 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 325 transitions. [2021-02-24 04:48:38,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-02-24 04:48:38,173 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:48:38,174 INFO L422 BasicCegarLoop]: trace histogram [12, 11, 11, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:48:38,174 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-02-24 04:48:38,174 INFO L428 AbstractCegarLoop]: === Iteration 13 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:48:38,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:48:38,175 INFO L82 PathProgramCache]: Analyzing trace with hash -608693377, now seen corresponding path program 1 times [2021-02-24 04:48:38,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:48:38,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1407819123] [2021-02-24 04:48:38,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:48:38,179 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:48:38,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:38,240 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:38,240 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:38,241 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:38,241 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:48:38,247 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:38,247 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:48:38,251 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:38,252 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:48:38,260 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:38,261 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:48:38,267 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:38,268 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:48:38,274 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:38,275 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:48:38,282 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:38,283 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:48:38,293 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:38,293 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:38,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:48:38,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:38,329 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:38,330 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:38,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-24 04:48:38,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:38,338 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:38,339 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:38,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-24 04:48:38,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:38,344 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:38,344 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:38,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 04:48:38,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:38,347 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:38,348 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:38,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-24 04:48:38,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:38,356 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:38,356 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:38,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 04:48:38,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:38,371 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:38,371 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:38,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-24 04:48:38,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:38,377 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:38,378 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:38,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-02-24 04:48:38,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:38,382 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:38,383 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:38,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-02-24 04:48:38,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:38,386 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:38,387 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:38,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-02-24 04:48:38,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:38,390 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:38,390 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:38,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-24 04:48:38,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:38,394 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:38,395 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:38,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-02-24 04:48:38,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:38,400 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:38,401 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:38,412 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-02-24 04:48:38,413 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1407819123] [2021-02-24 04:48:38,413 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:48:38,413 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-24 04:48:38,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647827390] [2021-02-24 04:48:38,414 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-24 04:48:38,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:48:38,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-24 04:48:38,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-02-24 04:48:38,415 INFO L87 Difference]: Start difference. First operand 262 states and 325 transitions. Second operand 10 states. [2021-02-24 04:48:39,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:48:39,385 INFO L93 Difference]: Finished difference Result 279 states and 342 transitions. [2021-02-24 04:48:39,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-24 04:48:39,385 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 102 [2021-02-24 04:48:39,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:48:39,388 INFO L225 Difference]: With dead ends: 279 [2021-02-24 04:48:39,388 INFO L226 Difference]: Without dead ends: 277 [2021-02-24 04:48:39,389 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=74, Invalid=306, Unknown=0, NotChecked=0, Total=380 [2021-02-24 04:48:39,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2021-02-24 04:48:39,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 267. [2021-02-24 04:48:39,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2021-02-24 04:48:39,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 330 transitions. [2021-02-24 04:48:39,478 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 330 transitions. Word has length 102 [2021-02-24 04:48:39,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:48:39,478 INFO L480 AbstractCegarLoop]: Abstraction has 267 states and 330 transitions. [2021-02-24 04:48:39,478 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-24 04:48:39,478 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 330 transitions. [2021-02-24 04:48:39,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-02-24 04:48:39,480 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:48:39,480 INFO L422 BasicCegarLoop]: trace histogram [12, 11, 11, 2, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:48:39,480 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-02-24 04:48:39,480 INFO L428 AbstractCegarLoop]: === Iteration 14 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:48:39,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:48:39,481 INFO L82 PathProgramCache]: Analyzing trace with hash 1631035893, now seen corresponding path program 1 times [2021-02-24 04:48:39,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:48:39,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1836362831] [2021-02-24 04:48:39,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:48:39,496 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:39,498 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-24 04:48:39,499 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:39,501 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-24 04:48:39,515 WARN L141 QuantifierPusher]: treesize reduction 15, result has 72.7 percent of original size [2021-02-24 04:48:39,516 INFO L723 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2021-02-24 04:48:39,518 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:39,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:39,520 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:39,524 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-02-24 04:48:39,525 WARN L147 QuantifierPusher]: treesize reduction 15, result has 72.7 percent of original size 40 [2021-02-24 04:48:39,528 WARN L141 QuantifierPusher]: treesize reduction 19, result has 79.3 percent of original size [2021-02-24 04:48:39,530 WARN L147 QuantifierPusher]: treesize reduction 19, result has 79.3 percent of original size 73 [2021-02-24 04:48:39,531 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-02-24 04:48:39,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:39,566 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:39,567 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:39,567 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:39,568 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:48:39,571 WARN L141 QuantifierPusher]: treesize reduction 4, result has 42.9 percent of original size [2021-02-24 04:48:39,572 WARN L147 QuantifierPusher]: treesize reduction 4, result has 42.9 percent of original size 3 [2021-02-24 04:48:39,576 WARN L141 QuantifierPusher]: treesize reduction 9, result has 25.0 percent of original size [2021-02-24 04:48:39,577 WARN L147 QuantifierPusher]: treesize reduction 9, result has 25.0 percent of original size 3 [2021-02-24 04:48:39,582 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:39,583 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:48:39,589 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:39,589 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:48:39,596 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:39,597 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:48:39,605 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:39,605 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:39,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:48:39,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:39,635 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:39,636 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:39,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-24 04:48:39,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:39,640 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:39,640 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:39,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-02-24 04:48:39,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:39,644 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:39,644 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:39,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-02-24 04:48:39,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:39,648 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:39,649 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:39,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-02-24 04:48:39,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:39,652 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:39,653 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:39,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-02-24 04:48:39,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:39,656 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:39,657 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:39,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-02-24 04:48:39,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:39,661 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:39,662 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:39,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-02-24 04:48:39,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:48:39,665 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:39,665 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:39,672 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-02-24 04:48:39,674 WARN L141 QuantifierPusher]: treesize reduction 8, result has 89.0 percent of original size [2021-02-24 04:48:39,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:39,676 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:39,677 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:48:39,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:39,678 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:39,678 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-24 04:48:39,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:39,679 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:39,680 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:48:39,681 WARN L147 QuantifierPusher]: treesize reduction 8, result has 89.0 percent of original size 65 [2021-02-24 04:48:39,750 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:39,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:39,751 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:39,752 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-24 04:48:39,753 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-24 04:48:39,792 WARN L141 QuantifierPusher]: treesize reduction 1, result has 97.4 percent of original size [2021-02-24 04:48:39,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:39,793 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:39,793 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-24 04:48:39,794 WARN L147 QuantifierPusher]: treesize reduction 1, result has 97.4 percent of original size 38 [2021-02-24 04:48:39,836 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:39,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:39,839 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:39,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:39,841 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:39,841 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-24 04:48:39,842 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-24 04:48:39,843 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-24 04:48:39,882 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:39,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:39,884 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:39,885 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-02-24 04:48:39,886 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-24 04:48:39,921 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:39,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:39,923 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:39,924 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-02-24 04:48:39,926 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-24 04:48:39,968 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:39,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:39,971 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:39,971 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-02-24 04:48:39,972 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-02-24 04:48:40,008 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:40,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:40,011 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:40,015 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-02-24 04:48:40,016 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-24 04:48:40,017 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:40,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:40,021 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:40,021 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-24 04:48:40,022 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-02-24 04:48:40,057 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:40,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:40,063 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:40,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:40,066 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:40,067 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-24 04:48:40,068 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-02-24 04:48:40,070 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-02-24 04:48:40,115 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:40,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:40,121 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:40,122 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:40,123 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:40,123 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-24 04:48:40,124 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-02-24 04:48:40,125 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-02-24 04:48:40,180 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:40,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:40,184 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:40,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:40,186 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:40,188 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-24 04:48:40,189 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-02-24 04:48:40,189 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-02-24 04:48:40,248 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:40,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:40,251 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:40,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:40,253 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:40,254 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-24 04:48:40,254 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-02-24 04:48:40,256 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-02-24 04:48:40,320 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:40,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:40,325 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:40,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:40,328 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:40,329 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-24 04:48:40,330 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-02-24 04:48:40,331 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-02-24 04:48:40,333 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:40,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:40,334 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:40,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:40,336 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:40,337 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-24 04:48:40,338 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:48:40,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:40,345 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:40,346 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-02-24 04:48:40,347 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-02-24 04:48:40,359 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:40,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:40,360 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:40,361 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:48:40,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:40,361 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:40,361 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 04:48:40,362 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-24 04:48:40,411 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:40,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:40,412 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:40,412 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 04:48:40,413 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-24 04:48:40,493 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:40,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:40,493 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:40,494 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 04:48:40,494 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-24 04:48:40,588 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:40,589 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:40,590 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:40,591 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 04:48:40,592 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-24 04:48:40,648 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:40,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:40,650 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:40,650 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 04:48:40,651 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-24 04:48:40,652 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:40,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:40,654 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:40,655 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 04:48:40,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:40,656 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:40,656 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:48:40,657 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-24 04:48:40,709 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:40,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:40,711 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:40,711 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:40,712 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:40,712 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 04:48:40,713 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-24 04:48:40,714 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-24 04:48:40,766 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:40,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:40,770 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:40,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:40,771 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:40,772 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 04:48:40,772 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-24 04:48:40,773 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-24 04:48:40,837 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:40,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:40,838 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:40,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:40,839 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:40,839 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 04:48:40,840 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-24 04:48:40,841 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-24 04:48:40,912 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:40,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:40,913 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:40,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:40,914 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:40,914 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 04:48:40,915 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-24 04:48:40,915 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-02-24 04:48:40,989 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:40,989 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:40,990 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:40,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:40,991 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:40,992 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 04:48:40,992 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-24 04:48:40,993 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-02-24 04:48:40,993 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:40,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:40,994 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:40,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:40,995 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:40,995 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 04:48:40,995 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-02-24 04:48:40,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:40,997 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:40,998 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-02-24 04:48:40,998 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-02-24 04:48:41,056 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:41,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:41,058 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:41,059 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-02-24 04:48:41,061 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:48:41,116 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:41,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:41,120 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:41,120 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-02-24 04:48:41,121 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-24 04:48:41,187 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:41,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:41,190 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:41,190 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-02-24 04:48:41,191 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-02-24 04:48:41,253 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:41,254 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:41,255 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:41,255 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-02-24 04:48:41,255 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:48:41,324 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:41,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:41,327 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:41,327 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-02-24 04:48:41,328 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-24 04:48:41,407 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:41,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:41,408 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:41,409 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-02-24 04:48:41,409 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-02-24 04:48:41,412 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:41,413 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:48:41,413 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1836362831] [2021-02-24 04:48:41,414 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:48:41,414 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-02-24 04:48:41,414 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371205131] [2021-02-24 04:48:41,415 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-02-24 04:48:41,415 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:48:41,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-02-24 04:48:41,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=934, Unknown=0, NotChecked=0, Total=1056 [2021-02-24 04:48:41,416 INFO L87 Difference]: Start difference. First operand 267 states and 330 transitions. Second operand 31 states. [2021-02-24 04:48:43,450 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2021-02-24 04:48:43,860 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2021-02-24 04:48:50,993 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 70 [2021-02-24 04:48:51,174 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 68 [2021-02-24 04:48:51,449 WARN L202 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2021-02-24 04:48:51,613 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2021-02-24 04:48:51,774 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 83 [2021-02-24 04:48:51,969 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 82 [2021-02-24 04:48:52,173 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2021-02-24 04:48:56,976 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 82 [2021-02-24 04:48:57,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:48:57,170 INFO L93 Difference]: Finished difference Result 357 states and 446 transitions. [2021-02-24 04:48:57,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-02-24 04:48:57,172 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 104 [2021-02-24 04:48:57,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:48:57,174 INFO L225 Difference]: With dead ends: 357 [2021-02-24 04:48:57,174 INFO L226 Difference]: Without dead ends: 355 [2021-02-24 04:48:57,177 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 26 SyntacticMatches, 4 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3310 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=1056, Invalid=8256, Unknown=0, NotChecked=0, Total=9312 [2021-02-24 04:48:57,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2021-02-24 04:48:57,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 289. [2021-02-24 04:48:57,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 289 states. [2021-02-24 04:48:57,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 357 transitions. [2021-02-24 04:48:57,285 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 357 transitions. Word has length 104 [2021-02-24 04:48:57,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:48:57,286 INFO L480 AbstractCegarLoop]: Abstraction has 289 states and 357 transitions. [2021-02-24 04:48:57,286 INFO L481 AbstractCegarLoop]: Interpolant automaton has 31 states. [2021-02-24 04:48:57,286 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 357 transitions. [2021-02-24 04:48:57,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-02-24 04:48:57,291 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:48:57,291 INFO L422 BasicCegarLoop]: trace histogram [13, 12, 12, 2, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:48:57,291 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-02-24 04:48:57,292 INFO L428 AbstractCegarLoop]: === Iteration 15 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:48:57,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:48:57,292 INFO L82 PathProgramCache]: Analyzing trace with hash 2007174535, now seen corresponding path program 1 times [2021-02-24 04:48:57,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:48:57,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [64170123] [2021-02-24 04:48:57,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:48:57,310 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:57,313 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-24 04:48:57,320 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:57,327 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-24 04:48:57,346 WARN L141 QuantifierPusher]: treesize reduction 15, result has 72.7 percent of original size [2021-02-24 04:48:57,348 INFO L723 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2021-02-24 04:48:57,349 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:57,350 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:48:57,351 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:48:57,355 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-02-24 04:48:57,357 WARN L147 QuantifierPusher]: treesize reduction 15, result has 72.7 percent of original size 40 [2021-02-24 04:48:57,360 WARN L141 QuantifierPusher]: treesize reduction 19, result has 79.3 percent of original size [2021-02-24 04:48:57,362 WARN L147 QuantifierPusher]: treesize reduction 19, result has 79.3 percent of original size 73 [2021-02-24 04:48:57,363 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-02-24 04:48:57,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 04:48:57,385 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 04:48:57,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 04:48:57,401 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 04:48:57,446 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-24 04:48:57,446 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-24 04:48:57,447 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-02-24 04:48:57,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 04:48:57 BoogieIcfgContainer [2021-02-24 04:48:57,468 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-24 04:48:57,468 INFO L168 Benchmark]: Toolchain (without parser) took 52850.91 ms. Allocated memory was 151.0 MB in the beginning and 276.8 MB in the end (delta: 125.8 MB). Free memory was 126.8 MB in the beginning and 114.7 MB in the end (delta: 12.1 MB). Peak memory consumption was 138.4 MB. Max. memory is 8.0 GB. [2021-02-24 04:48:57,469 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 151.0 MB. Free memory is still 123.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 04:48:57,469 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.84 ms. Allocated memory is still 151.0 MB. Free memory was 125.6 MB in the beginning and 115.5 MB in the end (delta: 10.0 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-24 04:48:57,469 INFO L168 Benchmark]: Boogie Preprocessor took 42.60 ms. Allocated memory is still 151.0 MB. Free memory was 115.5 MB in the beginning and 114.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-24 04:48:57,469 INFO L168 Benchmark]: RCFGBuilder took 640.05 ms. Allocated memory is still 151.0 MB. Free memory was 113.9 MB in the beginning and 130.8 MB in the end (delta: -16.9 MB). Peak memory consumption was 22.7 MB. Max. memory is 8.0 GB. [2021-02-24 04:48:57,469 INFO L168 Benchmark]: TraceAbstraction took 51857.44 ms. Allocated memory was 151.0 MB in the beginning and 276.8 MB in the end (delta: 125.8 MB). Free memory was 130.2 MB in the beginning and 114.7 MB in the end (delta: 15.6 MB). Peak memory consumption was 140.9 MB. Max. memory is 8.0 GB. [2021-02-24 04:48:57,470 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 151.0 MB. Free memory is still 123.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 291.84 ms. Allocated memory is still 151.0 MB. Free memory was 125.6 MB in the beginning and 115.5 MB in the end (delta: 10.0 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 42.60 ms. Allocated memory is still 151.0 MB. Free memory was 115.5 MB in the beginning and 114.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 640.05 ms. Allocated memory is still 151.0 MB. Free memory was 113.9 MB in the beginning and 130.8 MB in the end (delta: -16.9 MB). Peak memory consumption was 22.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 51857.44 ms. Allocated memory was 151.0 MB in the beginning and 276.8 MB in the end (delta: 125.8 MB). Free memory was 130.2 MB in the beginning and 114.7 MB in the end (delta: 15.6 MB). Peak memory consumption was 140.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L26] int len; [L27] int i; [L28] int j; [L29] int bufsize; [L30] bufsize = __VERIFIER_nondet_int() [L31] COND FALSE !(bufsize < 0) [L32] len = __VERIFIER_nondet_int() [L33] int limit = bufsize - 4; [L34] i = 0 [L34] COND TRUE i < len [L35] j = 0 [L35] COND TRUE i < len && j < limit [L36] COND FALSE !(i + 1 < len) [L57] CALL __VERIFIER_assert(i