/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-lit/ddlm2013.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-a47f07a [2021-04-15 23:37:55,916 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-15 23:37:55,918 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-15 23:37:55,946 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-15 23:37:55,947 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-15 23:37:55,949 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-15 23:37:55,951 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-15 23:37:55,955 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-15 23:37:55,957 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-15 23:37:55,960 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-15 23:37:55,960 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-15 23:37:55,961 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-15 23:37:55,962 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-15 23:37:55,963 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-15 23:37:55,964 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-15 23:37:55,965 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-15 23:37:55,966 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-15 23:37:55,967 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-15 23:37:55,969 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-15 23:37:55,974 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-15 23:37:55,975 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-15 23:37:55,977 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-15 23:37:55,978 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-15 23:37:55,979 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-15 23:37:55,984 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-15 23:37:55,989 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-15 23:37:55,990 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-15 23:37:55,990 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-15 23:37:55,993 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2021-04-15 23:37:56,020 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-15 23:37:56,020 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-15 23:37:56,022 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-15 23:37:56,022 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-15 23:37:56,023 INFO L138 SettingsManager]: * Use SBE=true [2021-04-15 23:37:56,023 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-15 23:37:56,023 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-15 23:37:56,023 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-15 23:37:56,023 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-15 23:37:56,023 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-15 23:37:56,024 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-15 23:37:56,024 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-15 23:37:56,024 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-15 23:37:56,024 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-15 23:37:56,024 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-15 23:37:56,024 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-15 23:37:56,024 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-15 23:37:56,024 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-15 23:37:56,025 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-15 23:37:56,025 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-15 23:37:56,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-15 23:37:56,025 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-15 23:37:56,025 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-15 23:37:56,025 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-15 23:37:56,025 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-15 23:37:56,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-15 23:37:56,025 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-04-15 23:37:56,026 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-04-15 23:37:56,026 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-15 23:37:56,263 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-15 23:37:56,283 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-15 23:37:56,285 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-15 23:37:56,286 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-15 23:37:56,286 INFO L275 PluginConnector]: CDTParser initialized [2021-04-15 23:37:56,287 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/ddlm2013.i [2021-04-15 23:37:56,335 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/522328270/e728b7c5a1c2425393841cd33af0f1b5/FLAG558a444ea [2021-04-15 23:37:56,686 INFO L306 CDTParser]: Found 1 translation units. [2021-04-15 23:37:56,687 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/ddlm2013.i [2021-04-15 23:37:56,691 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/522328270/e728b7c5a1c2425393841cd33af0f1b5/FLAG558a444ea [2021-04-15 23:37:57,104 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/522328270/e728b7c5a1c2425393841cd33af0f1b5 [2021-04-15 23:37:57,109 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-15 23:37:57,111 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-04-15 23:37:57,113 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-15 23:37:57,113 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-15 23:37:57,115 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-15 23:37:57,116 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.04 11:37:57" (1/1) ... [2021-04-15 23:37:57,117 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9dbdea5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:37:57, skipping insertion in model container [2021-04-15 23:37:57,117 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.04 11:37:57" (1/1) ... [2021-04-15 23:37:57,122 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-15 23:37:57,133 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-15 23:37:57,226 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-lit/ddlm2013.i[895,908] [2021-04-15 23:37:57,238 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-15 23:37:57,243 INFO L203 MainTranslator]: Completed pre-run [2021-04-15 23:37:57,251 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-lit/ddlm2013.i[895,908] [2021-04-15 23:37:57,254 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-15 23:37:57,277 INFO L208 MainTranslator]: Completed translation [2021-04-15 23:37:57,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:37:57 WrapperNode [2021-04-15 23:37:57,278 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-15 23:37:57,278 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-15 23:37:57,279 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-15 23:37:57,279 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-15 23:37:57,285 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:37:57" (1/1) ... [2021-04-15 23:37:57,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:37:57" (1/1) ... [2021-04-15 23:37:57,300 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:37:57" (1/1) ... [2021-04-15 23:37:57,300 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:37:57" (1/1) ... [2021-04-15 23:37:57,313 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:37:57" (1/1) ... [2021-04-15 23:37:57,317 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:37:57" (1/1) ... [2021-04-15 23:37:57,322 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:37:57" (1/1) ... [2021-04-15 23:37:57,323 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-15 23:37:57,324 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-15 23:37:57,324 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-15 23:37:57,324 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-15 23:37:57,324 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:37:57" (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 [2021-04-15 23:37:57,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-04-15 23:37:57,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-15 23:37:57,394 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-04-15 23:37:57,394 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-04-15 23:37:57,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-04-15 23:37:57,395 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-04-15 23:37:57,395 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-04-15 23:37:57,395 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-04-15 23:37:57,396 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-04-15 23:37:57,396 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-04-15 23:37:57,396 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-04-15 23:37:57,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-15 23:37:57,397 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-04-15 23:37:57,397 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-04-15 23:37:57,398 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-04-15 23:37:57,399 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-04-15 23:37:57,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-04-15 23:37:57,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-15 23:37:57,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-15 23:37:57,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-15 23:37:57,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-04-15 23:37:57,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-15 23:37:57,590 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-15 23:37:57,590 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-04-15 23:37:57,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 11:37:57 BoogieIcfgContainer [2021-04-15 23:37:57,591 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-15 23:37:57,592 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-15 23:37:57,592 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-15 23:37:57,594 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-15 23:37:57,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.04 11:37:57" (1/3) ... [2021-04-15 23:37:57,595 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ed8f1a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 11:37:57, skipping insertion in model container [2021-04-15 23:37:57,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:37:57" (2/3) ... [2021-04-15 23:37:57,595 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ed8f1a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 11:37:57, skipping insertion in model container [2021-04-15 23:37:57,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 11:37:57" (3/3) ... [2021-04-15 23:37:57,596 INFO L111 eAbstractionObserver]: Analyzing ICFG ddlm2013.i [2021-04-15 23:37:57,599 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-15 23:37:57,610 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-15 23:37:57,622 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-04-15 23:37:57,646 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-15 23:37:57,647 INFO L377 AbstractCegarLoop]: Hoare is true [2021-04-15 23:37:57,647 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-15 23:37:57,647 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-15 23:37:57,647 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-15 23:37:57,647 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-15 23:37:57,647 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-15 23:37:57,647 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-15 23:37:57,666 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 17 states have internal predecessors, (22), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-04-15 23:37:57,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-04-15 23:37:57,673 INFO L511 BasicCegarLoop]: Found error trace [2021-04-15 23:37:57,673 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 23:37:57,674 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-15 23:37:57,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 23:37:57,677 INFO L82 PathProgramCache]: Analyzing trace with hash -948948446, now seen corresponding path program 1 times [2021-04-15 23:37:57,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 23:37:57,689 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72729644] [2021-04-15 23:37:57,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 23:37:57,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:37:57,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:57,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:57,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:57,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:57,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-15 23:37:57,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:37:57,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:57,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:57,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 23:37:57,808 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72729644] [2021-04-15 23:37:57,808 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 23:37:57,808 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-15 23:37:57,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004687287] [2021-04-15 23:37:57,811 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-15 23:37:57,811 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 23:37:57,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-15 23:37:57,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-15 23:37:57,820 INFO L87 Difference]: Start difference. First operand has 23 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 17 states have internal predecessors, (22), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:37:57,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 23:37:57,855 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2021-04-15 23:37:57,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-15 23:37:57,857 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2021-04-15 23:37:57,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 23:37:57,863 INFO L225 Difference]: With dead ends: 36 [2021-04-15 23:37:57,863 INFO L226 Difference]: Without dead ends: 16 [2021-04-15 23:37:57,865 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-15 23:37:57,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-04-15 23:37:57,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-04-15 23:37:57,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:37:57,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2021-04-15 23:37:57,892 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 13 [2021-04-15 23:37:57,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 23:37:57,892 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2021-04-15 23:37:57,892 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:37:57,893 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2021-04-15 23:37:57,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-04-15 23:37:57,900 INFO L511 BasicCegarLoop]: Found error trace [2021-04-15 23:37:57,900 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 23:37:57,900 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-15 23:37:57,900 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-15 23:37:57,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 23:37:57,901 INFO L82 PathProgramCache]: Analyzing trace with hash 1572998999, now seen corresponding path program 1 times [2021-04-15 23:37:57,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 23:37:57,901 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346171217] [2021-04-15 23:37:57,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 23:37:57,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:37:57,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:57,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:57,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:57,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:37:57,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:57,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-15 23:37:57,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:57,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-15 23:37:58,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:58,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-15 23:37:58,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:37:58,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:58,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 23:37:58,043 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346171217] [2021-04-15 23:37:58,043 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 23:37:58,043 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-15 23:37:58,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145177759] [2021-04-15 23:37:58,046 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-15 23:37:58,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 23:37:58,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-15 23:37:58,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-04-15 23:37:58,048 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:37:58,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 23:37:58,157 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2021-04-15 23:37:58,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-15 23:37:58,161 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2021-04-15 23:37:58,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 23:37:58,161 INFO L225 Difference]: With dead ends: 24 [2021-04-15 23:37:58,162 INFO L226 Difference]: Without dead ends: 18 [2021-04-15 23:37:58,162 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 91.4ms TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-04-15 23:37:58,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-04-15 23:37:58,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-04-15 23:37:58,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:37:58,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2021-04-15 23:37:58,166 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 14 [2021-04-15 23:37:58,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 23:37:58,166 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2021-04-15 23:37:58,166 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:37:58,166 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2021-04-15 23:37:58,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-04-15 23:37:58,166 INFO L511 BasicCegarLoop]: Found error trace [2021-04-15 23:37:58,166 INFO L519 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 23:37:58,166 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-15 23:37:58,167 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-15 23:37:58,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 23:37:58,167 INFO L82 PathProgramCache]: Analyzing trace with hash -898740055, now seen corresponding path program 1 times [2021-04-15 23:37:58,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 23:37:58,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235057246] [2021-04-15 23:37:58,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 23:37:58,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:37:58,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:58,248 INFO L142 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size [2021-04-15 23:37:58,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-15 23:37:58,267 INFO L142 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-04-15 23:37:58,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-15 23:37:58,285 INFO L142 QuantifierPusher]: treesize reduction 21, result has 83.1 percent of original size [2021-04-15 23:37:58,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-04-15 23:37:58,330 INFO L142 QuantifierPusher]: treesize reduction 19, result has 81.6 percent of original size [2021-04-15 23:37:58,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-04-15 23:37:58,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-15 23:37:58,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-15 23:37:58,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:58,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-15 23:37:58,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:37:58,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:58,426 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 23:37:58,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235057246] [2021-04-15 23:37:58,427 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [180771947] [2021-04-15 23:37:58,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 23:37:58,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:37:58,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 18 conjunts are in the unsatisfiable core [2021-04-15 23:37:58,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 23:37:58,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:58,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:58,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:58,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:58,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:58,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:58,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:58,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:58,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:58,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:58,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:58,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:58,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:58,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:58,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:58,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:58,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:58,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:58,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:58,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:58,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-15 23:37:58,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-15 23:37:58,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-15 23:37:58,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-15 23:37:58,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-15 23:37:58,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-15 23:37:58,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-15 23:37:58,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-15 23:37:58,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-15 23:37:58,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-15 23:37:58,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-15 23:37:58,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-15 23:37:58,532 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.3 percent of original size [2021-04-15 23:37:58,540 INFO L147 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size 10 [2021-04-15 23:37:58,541 INFO L142 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size [2021-04-15 23:37:58,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:37:58,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:37:58,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:37:58,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:37:58,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:37:58,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:37:58,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:37:58,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:37:58,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:37:58,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:37:58,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:37:58,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:37:58,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:37:58,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:37:58,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:37:58,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:37:58,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:37:58,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:37:58,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:37:58,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:37:58,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:37:58,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:37:58,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:37:58,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:37:58,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:37:58,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:37:58,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:37:58,613 INFO L142 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size [2021-04-15 23:37:58,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:58,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:58,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:58,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:58,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:58,615 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 23:37:58,615 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 23:37:58,615 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 12 [2021-04-15 23:37:58,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478712652] [2021-04-15 23:37:58,616 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-04-15 23:37:58,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 23:37:58,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-04-15 23:37:58,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-04-15 23:37:58,617 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand has 12 states, 12 states have (on average 1.75) internal successors, (21), 9 states have internal predecessors, (21), 3 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:37:58,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 23:37:58,844 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2021-04-15 23:37:58,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-15 23:37:58,844 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.75) internal successors, (21), 9 states have internal predecessors, (21), 3 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2021-04-15 23:37:58,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 23:37:58,845 INFO L225 Difference]: With dead ends: 29 [2021-04-15 23:37:58,845 INFO L226 Difference]: Without dead ends: 23 [2021-04-15 23:37:58,847 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 283.3ms TimeCoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2021-04-15 23:37:58,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-04-15 23:37:58,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2021-04-15 23:37:58,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 16 states have (on average 1.25) internal successors, (20), 16 states have internal predecessors, (20), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:37:58,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2021-04-15 23:37:58,853 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 17 [2021-04-15 23:37:58,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 23:37:58,853 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2021-04-15 23:37:58,854 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 1.75) internal successors, (21), 9 states have internal predecessors, (21), 3 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:37:58,854 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2021-04-15 23:37:58,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-04-15 23:37:58,855 INFO L511 BasicCegarLoop]: Found error trace [2021-04-15 23:37:58,855 INFO L519 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 23:37:59,071 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-04-15 23:37:59,071 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-15 23:37:59,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 23:37:59,071 INFO L82 PathProgramCache]: Analyzing trace with hash -197675477, now seen corresponding path program 1 times [2021-04-15 23:37:59,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 23:37:59,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918518187] [2021-04-15 23:37:59,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 23:37:59,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:37:59,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:59,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:37:59,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:59,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-15 23:37:59,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:37:59,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:59,133 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-04-15 23:37:59,133 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918518187] [2021-04-15 23:37:59,133 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 23:37:59,134 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-15 23:37:59,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217948509] [2021-04-15 23:37:59,135 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-15 23:37:59,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 23:37:59,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-15 23:37:59,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-15 23:37:59,136 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:37:59,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 23:37:59,171 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2021-04-15 23:37:59,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-15 23:37:59,172 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2021-04-15 23:37:59,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 23:37:59,173 INFO L225 Difference]: With dead ends: 32 [2021-04-15 23:37:59,173 INFO L226 Difference]: Without dead ends: 21 [2021-04-15 23:37:59,173 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 29.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-15 23:37:59,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-04-15 23:37:59,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-04-15 23:37:59,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 16 states have (on average 1.1875) internal successors, (19), 16 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:37:59,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2021-04-15 23:37:59,179 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 17 [2021-04-15 23:37:59,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 23:37:59,180 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2021-04-15 23:37:59,180 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:37:59,180 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2021-04-15 23:37:59,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-04-15 23:37:59,180 INFO L511 BasicCegarLoop]: Found error trace [2021-04-15 23:37:59,180 INFO L519 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 23:37:59,180 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-15 23:37:59,181 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-15 23:37:59,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 23:37:59,184 INFO L82 PathProgramCache]: Analyzing trace with hash 737392151, now seen corresponding path program 2 times [2021-04-15 23:37:59,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 23:37:59,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284050486] [2021-04-15 23:37:59,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 23:37:59,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:37:59,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:59,239 INFO L142 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size [2021-04-15 23:37:59,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-15 23:37:59,251 INFO L142 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-04-15 23:37:59,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-15 23:37:59,259 INFO L142 QuantifierPusher]: treesize reduction 2, result has 90.9 percent of original size [2021-04-15 23:37:59,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-04-15 23:37:59,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-15 23:37:59,281 INFO L142 QuantifierPusher]: treesize reduction 4, result has 96.1 percent of original size [2021-04-15 23:37:59,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-04-15 23:37:59,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-15 23:37:59,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-15 23:37:59,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:59,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-15 23:37:59,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:37:59,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:59,364 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 23:37:59,364 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284050486] [2021-04-15 23:37:59,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1161672984] [2021-04-15 23:37:59,365 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 23:37:59,418 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-15 23:37:59,418 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 23:37:59,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 26 conjunts are in the unsatisfiable core [2021-04-15 23:37:59,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 23:37:59,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:59,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:59,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:59,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:59,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:59,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:59,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:59,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:59,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:59,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:59,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:59,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:59,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:59,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:59,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:59,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:59,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:59,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:59,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:59,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:59,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-15 23:37:59,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-15 23:37:59,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-15 23:37:59,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-15 23:37:59,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-15 23:37:59,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-15 23:37:59,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-15 23:37:59,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-15 23:37:59,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-15 23:37:59,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-15 23:37:59,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-15 23:37:59,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-15 23:37:59,450 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.9 percent of original size [2021-04-15 23:37:59,452 INFO L147 QuantifierPusher]: treesize reduction 6, result has 73.9 percent of original size 17 [2021-04-15 23:37:59,452 INFO L142 QuantifierPusher]: treesize reduction 6, result has 73.9 percent of original size [2021-04-15 23:37:59,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-15 23:37:59,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-15 23:37:59,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-15 23:37:59,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,468 INFO L147 QuantifierPusher]: treesize reduction 2, result has 88.2 percent of original size 15 [2021-04-15 23:37:59,469 INFO L142 QuantifierPusher]: treesize reduction 2, result has 88.2 percent of original size [2021-04-15 23:37:59,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-15 23:37:59,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-15 23:37:59,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-15 23:37:59,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-15 23:37:59,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-15 23:37:59,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-15 23:37:59,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-15 23:37:59,492 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.6 percent of original size [2021-04-15 23:37:59,493 INFO L147 QuantifierPusher]: treesize reduction 3, result has 82.4 percent of original size 14 [2021-04-15 23:37:59,497 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-04-15 23:37:59,498 INFO L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-04-15 23:37:59,498 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-04-15 23:37:59,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:37:59,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:37:59,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:37:59,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:37:59,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:37:59,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:37:59,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:37:59,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:37:59,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:37:59,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:37:59,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:37:59,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:37:59,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:37:59,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:37:59,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:37:59,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:37:59,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:37:59,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:37:59,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:37:59,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:37:59,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:37:59,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:37:59,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:37:59,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:37:59,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:37:59,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:37:59,562 INFO L142 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size [2021-04-15 23:37:59,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:59,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:59,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:59,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:37:59,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:37:59,564 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 23:37:59,564 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 23:37:59,565 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 15 [2021-04-15 23:37:59,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017457384] [2021-04-15 23:37:59,565 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-04-15 23:37:59,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 23:37:59,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-04-15 23:37:59,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2021-04-15 23:37:59,567 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 15 states, 15 states have (on average 1.8) internal successors, (27), 12 states have internal predecessors, (27), 3 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:37:59,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 23:37:59,790 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2021-04-15 23:37:59,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-04-15 23:37:59,791 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 1.8) internal successors, (27), 12 states have internal predecessors, (27), 3 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2021-04-15 23:37:59,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 23:37:59,792 INFO L225 Difference]: With dead ends: 39 [2021-04-15 23:37:59,792 INFO L226 Difference]: Without dead ends: 24 [2021-04-15 23:37:59,794 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 273.9ms TimeCoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2021-04-15 23:37:59,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-04-15 23:37:59,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2021-04-15 23:37:59,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 19 states have internal predecessors, (22), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:37:59,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2021-04-15 23:37:59,800 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 20 [2021-04-15 23:37:59,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 23:37:59,800 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2021-04-15 23:37:59,801 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 1.8) internal successors, (27), 12 states have internal predecessors, (27), 3 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:37:59,801 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2021-04-15 23:37:59,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-04-15 23:37:59,801 INFO L511 BasicCegarLoop]: Found error trace [2021-04-15 23:37:59,801 INFO L519 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 23:38:00,016 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 23:38:00,016 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-15 23:38:00,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 23:38:00,017 INFO L82 PathProgramCache]: Analyzing trace with hash -831901207, now seen corresponding path program 3 times [2021-04-15 23:38:00,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 23:38:00,017 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83384902] [2021-04-15 23:38:00,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 23:38:00,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:38:00,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:00,065 INFO L142 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size [2021-04-15 23:38:00,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-15 23:38:00,071 INFO L142 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-04-15 23:38:00,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-15 23:38:00,079 INFO L142 QuantifierPusher]: treesize reduction 2, result has 92.3 percent of original size [2021-04-15 23:38:00,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-04-15 23:38:00,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-04-15 23:38:00,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-15 23:38:00,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-15 23:38:00,118 INFO L142 QuantifierPusher]: treesize reduction 4, result has 96.1 percent of original size [2021-04-15 23:38:00,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-04-15 23:38:00,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-15 23:38:00,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-15 23:38:00,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:00,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-15 23:38:00,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:38:00,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:00,217 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 23:38:00,217 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83384902] [2021-04-15 23:38:00,217 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2015092145] [2021-04-15 23:38:00,217 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 23:38:00,263 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-04-15 23:38:00,264 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 23:38:00,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 34 conjunts are in the unsatisfiable core [2021-04-15 23:38:00,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 23:38:00,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:00,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:00,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:00,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:00,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:00,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:00,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:00,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:00,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:00,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:00,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:00,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:00,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:00,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:00,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:00,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:00,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:00,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:00,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:00,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:00,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-15 23:38:00,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-15 23:38:00,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-15 23:38:00,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-15 23:38:00,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-15 23:38:00,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-15 23:38:00,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-15 23:38:00,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-15 23:38:00,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-15 23:38:00,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-15 23:38:00,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-15 23:38:00,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-15 23:38:00,291 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.9 percent of original size [2021-04-15 23:38:00,292 INFO L147 QuantifierPusher]: treesize reduction 6, result has 73.9 percent of original size 17 [2021-04-15 23:38:00,292 INFO L142 QuantifierPusher]: treesize reduction 6, result has 73.9 percent of original size [2021-04-15 23:38:00,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-15 23:38:00,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-15 23:38:00,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-15 23:38:00,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,307 INFO L147 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size 17 [2021-04-15 23:38:00,308 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-04-15 23:38:00,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-15 23:38:00,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-15 23:38:00,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-15 23:38:00,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-15 23:38:00,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-15 23:38:00,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-15 23:38:00,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-15 23:38:00,341 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.2 percent of original size [2021-04-15 23:38:00,343 INFO L147 QuantifierPusher]: treesize reduction 4, result has 82.6 percent of original size 19 [2021-04-15 23:38:00,343 INFO L142 QuantifierPusher]: treesize reduction 4, result has 82.6 percent of original size [2021-04-15 23:38:00,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-15 23:38:00,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-15 23:38:00,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-15 23:38:00,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,365 INFO L147 QuantifierPusher]: treesize reduction 6, result has 71.4 percent of original size 15 [2021-04-15 23:38:00,365 INFO L142 QuantifierPusher]: treesize reduction 6, result has 71.4 percent of original size [2021-04-15 23:38:00,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-15 23:38:00,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-15 23:38:00,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-15 23:38:00,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-15 23:38:00,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-15 23:38:00,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-15 23:38:00,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-15 23:38:00,388 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.6 percent of original size [2021-04-15 23:38:00,390 INFO L147 QuantifierPusher]: treesize reduction 5, result has 73.7 percent of original size 14 [2021-04-15 23:38:00,390 INFO L142 QuantifierPusher]: treesize reduction 5, result has 75.0 percent of original size [2021-04-15 23:38:00,394 INFO L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-04-15 23:38:00,395 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-04-15 23:38:00,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:00,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:00,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:00,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:00,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:00,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:00,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:00,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:00,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:00,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:00,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:00,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:00,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:00,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:00,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:00,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:00,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:00,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:00,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:38:00,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:38:00,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:38:00,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:38:00,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:00,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:38:00,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:38:00,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:38:00,455 INFO L142 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size [2021-04-15 23:38:00,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:00,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:00,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:00,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:00,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:00,458 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 23:38:00,458 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 23:38:00,458 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 19 [2021-04-15 23:38:00,458 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605769288] [2021-04-15 23:38:00,459 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-04-15 23:38:00,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 23:38:00,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-04-15 23:38:00,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2021-04-15 23:38:00,459 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand has 19 states, 19 states have (on average 1.736842105263158) internal successors, (33), 16 states have internal predecessors, (33), 3 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:38:00,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 23:38:00,932 INFO L93 Difference]: Finished difference Result 56 states and 66 transitions. [2021-04-15 23:38:00,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-04-15 23:38:00,933 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.736842105263158) internal successors, (33), 16 states have internal predecessors, (33), 3 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2021-04-15 23:38:00,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 23:38:00,933 INFO L225 Difference]: With dead ends: 56 [2021-04-15 23:38:00,933 INFO L226 Difference]: Without dead ends: 35 [2021-04-15 23:38:00,935 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 563.8ms TimeCoverageRelationStatistics Valid=160, Invalid=896, Unknown=0, NotChecked=0, Total=1056 [2021-04-15 23:38:00,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-04-15 23:38:00,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2021-04-15 23:38:00,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 28 states have internal predecessors, (33), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:38:00,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2021-04-15 23:38:00,937 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 23 [2021-04-15 23:38:00,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 23:38:00,938 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2021-04-15 23:38:00,938 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.736842105263158) internal successors, (33), 16 states have internal predecessors, (33), 3 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:38:00,938 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2021-04-15 23:38:00,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-04-15 23:38:00,938 INFO L511 BasicCegarLoop]: Found error trace [2021-04-15 23:38:00,938 INFO L519 BasicCegarLoop]: trace histogram [5, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 23:38:01,139 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 23:38:01,139 INFO L428 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-15 23:38:01,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 23:38:01,139 INFO L82 PathProgramCache]: Analyzing trace with hash -230247847, now seen corresponding path program 1 times [2021-04-15 23:38:01,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 23:38:01,140 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953902559] [2021-04-15 23:38:01,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 23:38:01,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:38:01,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:38:01,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:01,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:01,176 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.3 percent of original size [2021-04-15 23:38:01,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-04-15 23:38:01,193 INFO L142 QuantifierPusher]: treesize reduction 8, result has 74.2 percent of original size [2021-04-15 23:38:01,194 INFO L147 QuantifierPusher]: treesize reduction 7, result has 69.6 percent of original size 16 [2021-04-15 23:38:01,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-15 23:38:01,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:38:01,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,230 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 15 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-04-15 23:38:01,231 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953902559] [2021-04-15 23:38:01,231 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1533573260] [2021-04-15 23:38:01,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 23:38:01,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:38:01,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 9 conjunts are in the unsatisfiable core [2021-04-15 23:38:01,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 23:38:01,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:38:01,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:38:01,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:38:01,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:38:01,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:38:01,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:38:01,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:38:01,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:38:01,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:38:01,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:38:01,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:38:01,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:38:01,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:01,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:01,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:01,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:01,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:01,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:01,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:01,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:01,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:01,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:01,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:01,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:01,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:01,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:01,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:01,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:01,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:01,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:01,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:01,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:01,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:01,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:01,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:01,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:01,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-15 23:38:01,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-15 23:38:01,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-04-15 23:38:01,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-04-15 23:38:01,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,358 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 15 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-04-15 23:38:01,359 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 23:38:01,359 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 8 [2021-04-15 23:38:01,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496585343] [2021-04-15 23:38:01,359 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-04-15 23:38:01,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 23:38:01,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-04-15 23:38:01,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-04-15 23:38:01,360 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand has 8 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:38:01,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 23:38:01,488 INFO L93 Difference]: Finished difference Result 44 states and 49 transitions. [2021-04-15 23:38:01,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-04-15 23:38:01,489 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2021-04-15 23:38:01,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 23:38:01,489 INFO L225 Difference]: With dead ends: 44 [2021-04-15 23:38:01,489 INFO L226 Difference]: Without dead ends: 33 [2021-04-15 23:38:01,490 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 131.5ms TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2021-04-15 23:38:01,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-04-15 23:38:01,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-04-15 23:38:01,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 28 states have (on average 1.0357142857142858) internal successors, (29), 28 states have internal predecessors, (29), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:38:01,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 33 transitions. [2021-04-15 23:38:01,492 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 33 transitions. Word has length 26 [2021-04-15 23:38:01,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 23:38:01,492 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 33 transitions. [2021-04-15 23:38:01,492 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:38:01,492 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 33 transitions. [2021-04-15 23:38:01,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-04-15 23:38:01,493 INFO L511 BasicCegarLoop]: Found error trace [2021-04-15 23:38:01,493 INFO L519 BasicCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 23:38:01,695 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 23:38:01,695 INFO L428 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-15 23:38:01,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 23:38:01,696 INFO L82 PathProgramCache]: Analyzing trace with hash -1381313641, now seen corresponding path program 4 times [2021-04-15 23:38:01,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 23:38:01,696 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221932473] [2021-04-15 23:38:01,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 23:38:01,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:38:01,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:01,794 INFO L142 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size [2021-04-15 23:38:01,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-15 23:38:01,799 INFO L142 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-04-15 23:38:01,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-15 23:38:01,805 INFO L142 QuantifierPusher]: treesize reduction 2, result has 92.3 percent of original size [2021-04-15 23:38:01,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-04-15 23:38:01,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-04-15 23:38:01,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-04-15 23:38:01,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-04-15 23:38:01,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-04-15 23:38:01,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-04-15 23:38:01,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-04-15 23:38:01,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-04-15 23:38:01,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-15 23:38:01,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-15 23:38:01,924 INFO L142 QuantifierPusher]: treesize reduction 4, result has 96.1 percent of original size [2021-04-15 23:38:01,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-04-15 23:38:01,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-15 23:38:01,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-15 23:38:01,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:01,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:02,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-15 23:38:02,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 23:38:02,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:02,022 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 23:38:02,022 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221932473] [2021-04-15 23:38:02,022 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [29749483] [2021-04-15 23:38:02,022 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 23:38:02,081 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-04-15 23:38:02,081 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-15 23:38:02,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 58 conjunts are in the unsatisfiable core [2021-04-15 23:38:02,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-15 23:38:02,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:02,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:02,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:02,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:02,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:02,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:02,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:02,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:02,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:02,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:02,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:02,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:02,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:02,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:02,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:02,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:02,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:02,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:02,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:02,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:02,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-15 23:38:02,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-15 23:38:02,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-15 23:38:02,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-15 23:38:02,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-15 23:38:02,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-15 23:38:02,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-15 23:38:02,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-15 23:38:02,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-15 23:38:02,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-15 23:38:02,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-15 23:38:02,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-15 23:38:02,105 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.9 percent of original size [2021-04-15 23:38:02,107 INFO L147 QuantifierPusher]: treesize reduction 6, result has 73.9 percent of original size 17 [2021-04-15 23:38:02,107 INFO L142 QuantifierPusher]: treesize reduction 6, result has 73.9 percent of original size [2021-04-15 23:38:02,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-15 23:38:02,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-15 23:38:02,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-15 23:38:02,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,127 INFO L147 QuantifierPusher]: treesize reduction 2, result has 88.2 percent of original size 15 [2021-04-15 23:38:02,128 INFO L142 QuantifierPusher]: treesize reduction 2, result has 88.2 percent of original size [2021-04-15 23:38:02,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-15 23:38:02,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-15 23:38:02,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-15 23:38:02,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-15 23:38:02,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-15 23:38:02,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-15 23:38:02,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-15 23:38:02,148 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-04-15 23:38:02,150 INFO L147 QuantifierPusher]: treesize reduction 4, result has 84.0 percent of original size 21 [2021-04-15 23:38:02,150 INFO L142 QuantifierPusher]: treesize reduction 4, result has 84.0 percent of original size [2021-04-15 23:38:02,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-15 23:38:02,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-15 23:38:02,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-15 23:38:02,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,170 INFO L147 QuantifierPusher]: treesize reduction 2, result has 90.5 percent of original size 19 [2021-04-15 23:38:02,170 INFO L142 QuantifierPusher]: treesize reduction 2, result has 90.5 percent of original size [2021-04-15 23:38:02,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-15 23:38:02,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-15 23:38:02,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-15 23:38:02,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-15 23:38:02,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-15 23:38:02,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-15 23:38:02,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-15 23:38:02,196 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.4 percent of original size [2021-04-15 23:38:02,198 INFO L147 QuantifierPusher]: treesize reduction 6, result has 77.8 percent of original size 21 [2021-04-15 23:38:02,198 INFO L142 QuantifierPusher]: treesize reduction 6, result has 77.8 percent of original size [2021-04-15 23:38:02,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-15 23:38:02,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-15 23:38:02,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-15 23:38:02,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,219 INFO L147 QuantifierPusher]: treesize reduction 2, result has 90.5 percent of original size 19 [2021-04-15 23:38:02,220 INFO L142 QuantifierPusher]: treesize reduction 2, result has 90.5 percent of original size [2021-04-15 23:38:02,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-15 23:38:02,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-15 23:38:02,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-15 23:38:02,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-15 23:38:02,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-15 23:38:02,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-15 23:38:02,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-15 23:38:02,257 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.4 percent of original size [2021-04-15 23:38:02,258 INFO L147 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size 17 [2021-04-15 23:38:02,258 INFO L142 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-04-15 23:38:02,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-15 23:38:02,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-15 23:38:02,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-15 23:38:02,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,279 INFO L147 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size 13 [2021-04-15 23:38:02,280 INFO L142 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-04-15 23:38:02,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-15 23:38:02,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-15 23:38:02,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-15 23:38:02,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-15 23:38:02,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-15 23:38:02,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-15 23:38:02,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-15 23:38:02,302 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.9 percent of original size [2021-04-15 23:38:02,303 INFO L147 QuantifierPusher]: treesize reduction 2, result has 88.2 percent of original size 15 [2021-04-15 23:38:02,304 INFO L142 QuantifierPusher]: treesize reduction 2, result has 88.2 percent of original size [2021-04-15 23:38:02,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-15 23:38:02,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-15 23:38:02,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-15 23:38:02,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,326 INFO L147 QuantifierPusher]: treesize reduction 2, result has 88.2 percent of original size 15 [2021-04-15 23:38:02,326 INFO L142 QuantifierPusher]: treesize reduction 2, result has 88.2 percent of original size [2021-04-15 23:38:02,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-15 23:38:02,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-15 23:38:02,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-15 23:38:02,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-15 23:38:02,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-15 23:38:02,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-15 23:38:02,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-15 23:38:02,350 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.6 percent of original size [2021-04-15 23:38:02,352 INFO L147 QuantifierPusher]: treesize reduction 5, result has 73.7 percent of original size 14 [2021-04-15 23:38:02,353 INFO L142 QuantifierPusher]: treesize reduction 5, result has 75.0 percent of original size [2021-04-15 23:38:02,353 INFO L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-04-15 23:38:02,353 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-04-15 23:38:02,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:02,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:02,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:02,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:02,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:02,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:02,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:02,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:02,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:02,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:02,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:02,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:02,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:02,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:02,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:02,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:02,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:02,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:02,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:38:02,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:38:02,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:38:02,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:38:02,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-15 23:38:02,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:38:02,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:38:02,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-15 23:38:02,418 INFO L142 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size [2021-04-15 23:38:02,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:02,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:02,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:02,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-15 23:38:02,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-15 23:38:02,420 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 23:38:02,421 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-15 23:38:02,421 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17] total 31 [2021-04-15 23:38:02,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108260226] [2021-04-15 23:38:02,421 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-04-15 23:38:02,421 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 23:38:02,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-04-15 23:38:02,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=804, Unknown=0, NotChecked=0, Total=930 [2021-04-15 23:38:02,422 INFO L87 Difference]: Start difference. First operand 33 states and 33 transitions. Second operand has 31 states, 31 states have (on average 1.6451612903225807) internal successors, (51), 28 states have internal predecessors, (51), 3 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:38:03,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 23:38:03,244 INFO L93 Difference]: Finished difference Result 38 states and 39 transitions. [2021-04-15 23:38:03,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-04-15 23:38:03,244 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 1.6451612903225807) internal successors, (51), 28 states have internal predecessors, (51), 3 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2021-04-15 23:38:03,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 23:38:03,245 INFO L225 Difference]: With dead ends: 38 [2021-04-15 23:38:03,245 INFO L226 Difference]: Without dead ends: 0 [2021-04-15 23:38:03,245 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 509 ImplicationChecksByTransitivity, 1042.3ms TimeCoverageRelationStatistics Valid=301, Invalid=2051, Unknown=0, NotChecked=0, Total=2352 [2021-04-15 23:38:03,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-04-15 23:38:03,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-04-15 23:38:03,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 23:38:03,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-04-15 23:38:03,246 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2021-04-15 23:38:03,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 23:38:03,246 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-04-15 23:38:03,246 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 1.6451612903225807) internal successors, (51), 28 states have internal predecessors, (51), 3 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-15 23:38:03,246 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-04-15 23:38:03,246 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-04-15 23:38:03,457 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-15 23:38:03,458 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-04-15 23:38:03,551 INFO L198 CegarLoopUtils]: For program point reach_errorEXIT(line 12) no Hoare annotation was computed. [2021-04-15 23:38:03,551 INFO L198 CegarLoopUtils]: For program point reach_errorENTRY(line 12) no Hoare annotation was computed. [2021-04-15 23:38:03,551 INFO L198 CegarLoopUtils]: For program point L12-1(line 12) no Hoare annotation was computed. [2021-04-15 23:38:03,551 INFO L198 CegarLoopUtils]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2021-04-15 23:38:03,551 INFO L194 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string0.offset| |old(#t~string0.offset)|) (= |old(#length)| |#length|) (= |#t~string1.base| |old(#t~string1.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string0.base| |old(#t~string0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|) (= |#t~string1.offset| |old(#t~string1.offset)|)) [2021-04-15 23:38:03,552 INFO L198 CegarLoopUtils]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2021-04-15 23:38:03,552 INFO L198 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-04-15 23:38:03,552 INFO L201 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-04-15 23:38:03,552 INFO L201 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-04-15 23:38:03,552 INFO L198 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-04-15 23:38:03,552 INFO L198 CegarLoopUtils]: For program point L15(line 15) no Hoare annotation was computed. [2021-04-15 23:38:03,552 INFO L198 CegarLoopUtils]: For program point assume_abort_if_notENTRY(lines 14 16) no Hoare annotation was computed. [2021-04-15 23:38:03,552 INFO L198 CegarLoopUtils]: For program point L15-2(lines 14 16) no Hoare annotation was computed. [2021-04-15 23:38:03,552 INFO L198 CegarLoopUtils]: For program point assume_abort_if_notEXIT(lines 14 16) no Hoare annotation was computed. [2021-04-15 23:38:03,552 INFO L198 CegarLoopUtils]: For program point L35-2(lines 24 49) no Hoare annotation was computed. [2021-04-15 23:38:03,552 INFO L198 CegarLoopUtils]: For program point mainEXIT(lines 24 49) no Hoare annotation was computed. [2021-04-15 23:38:03,552 INFO L194 CegarLoopUtils]: At program point L46(line 46) the Hoare annotation is: (let ((.cse1 (* 4294967296 (div main_~a~0 4294967296))) (.cse0 (+ (* 4294967296 (div main_~b~0 4294967296)) main_~a~0))) (and (<= main_~b~0 main_~a~0) (< .cse0 (+ .cse1 main_~b~0 1)) (<= (+ .cse1 main_~b~0) .cse0))) [2021-04-15 23:38:03,552 INFO L198 CegarLoopUtils]: For program point mainFINAL(lines 24 49) no Hoare annotation was computed. [2021-04-15 23:38:03,552 INFO L198 CegarLoopUtils]: For program point L30(lines 30 34) no Hoare annotation was computed. [2021-04-15 23:38:03,552 INFO L201 CegarLoopUtils]: At program point mainENTRY(lines 24 49) the Hoare annotation is: true [2021-04-15 23:38:03,552 INFO L198 CegarLoopUtils]: For program point L45(lines 45 47) no Hoare annotation was computed. [2021-04-15 23:38:03,553 INFO L198 CegarLoopUtils]: For program point L39(lines 39 43) no Hoare annotation was computed. [2021-04-15 23:38:03,553 INFO L198 CegarLoopUtils]: For program point L39-2(lines 24 49) no Hoare annotation was computed. [2021-04-15 23:38:03,553 INFO L198 CegarLoopUtils]: For program point L35(lines 35 44) no Hoare annotation was computed. [2021-04-15 23:38:03,553 INFO L198 CegarLoopUtils]: For program point L18-2(lines 17 22) no Hoare annotation was computed. [2021-04-15 23:38:03,553 INFO L201 CegarLoopUtils]: At program point __VERIFIER_assertENTRY(lines 17 22) the Hoare annotation is: true [2021-04-15 23:38:03,553 INFO L198 CegarLoopUtils]: For program point __VERIFIER_assertEXIT(lines 17 22) no Hoare annotation was computed. [2021-04-15 23:38:03,553 INFO L198 CegarLoopUtils]: For program point L19(line 19) no Hoare annotation was computed. [2021-04-15 23:38:03,553 INFO L198 CegarLoopUtils]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-04-15 23:38:03,553 INFO L198 CegarLoopUtils]: For program point L18(lines 18 20) no Hoare annotation was computed. [2021-04-15 23:38:03,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.04 11:38:03 BoogieIcfgContainer [2021-04-15 23:38:03,557 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-15 23:38:03,557 INFO L168 Benchmark]: Toolchain (without parser) took 6446.62 ms. Allocated memory was 241.2 MB in the beginning and 289.4 MB in the end (delta: 48.2 MB). Free memory was 206.6 MB in the beginning and 178.6 MB in the end (delta: 28.0 MB). Peak memory consumption was 77.1 MB. Max. memory is 8.0 GB. [2021-04-15 23:38:03,557 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 241.2 MB. Free memory is still 222.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-04-15 23:38:03,557 INFO L168 Benchmark]: CACSL2BoogieTranslator took 164.69 ms. Allocated memory is still 241.2 MB. Free memory was 206.4 MB in the beginning and 223.8 MB in the end (delta: -17.4 MB). Peak memory consumption was 17.7 MB. Max. memory is 8.0 GB. [2021-04-15 23:38:03,557 INFO L168 Benchmark]: Boogie Preprocessor took 44.64 ms. Allocated memory is still 241.2 MB. Free memory was 223.8 MB in the beginning and 223.4 MB in the end (delta: 454.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-04-15 23:38:03,557 INFO L168 Benchmark]: RCFGBuilder took 267.60 ms. Allocated memory is still 241.2 MB. Free memory was 223.0 MB in the beginning and 208.7 MB in the end (delta: 14.3 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-04-15 23:38:03,558 INFO L168 Benchmark]: TraceAbstraction took 5964.62 ms. Allocated memory was 241.2 MB in the beginning and 289.4 MB in the end (delta: 48.2 MB). Free memory was 208.0 MB in the beginning and 178.6 MB in the end (delta: 29.4 MB). Peak memory consumption was 78.3 MB. Max. memory is 8.0 GB. [2021-04-15 23:38:03,558 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 241.2 MB. Free memory is still 222.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 164.69 ms. Allocated memory is still 241.2 MB. Free memory was 206.4 MB in the beginning and 223.8 MB in the end (delta: -17.4 MB). Peak memory consumption was 17.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 44.64 ms. Allocated memory is still 241.2 MB. Free memory was 223.8 MB in the beginning and 223.4 MB in the end (delta: 454.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 267.60 ms. Allocated memory is still 241.2 MB. Free memory was 223.0 MB in the beginning and 208.7 MB in the end (delta: 14.3 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5964.62 ms. Allocated memory was 241.2 MB in the beginning and 289.4 MB in the end (delta: 48.2 MB). Free memory was 208.0 MB in the beginning and 178.6 MB in the end (delta: 29.4 MB). Peak memory consumption was 78.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5812.1ms, OverallIterations: 8, TraceHistogramMax: 7, EmptinessCheckTime: 25.2ms, AutomataDifference: 2094.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 93.7ms, InitialAbstractionConstructionTime: 10.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 137 SDtfs, 199 SDslu, 260 SDs, 0 SdLazy, 974 SolverSat, 98 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 480.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 245 GetRequests, 107 SyntacticMatches, 2 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 902 ImplicationChecksByTransitivity, 2434.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=6, InterpolantAutomatonStates: 78, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 44.7ms AutomataMinimizationTime, 8 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 6 LocationsWithAnnotation, 19 PreInvPairs, 28 NumberOfFragments, 64 HoareAnnotationTreeSize, 19 FomulaSimplifications, 228 FormulaSimplificationTreeSizeReduction, 40.2ms HoareSimplificationTime, 6 FomulaSimplificationsInter, 324 FormulaSimplificationTreeSizeReductionInter, 46.5ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 42.8ms SsaConstructionTime, 247.4ms SatisfiabilityAnalysisTime, 2046.2ms InterpolantComputationTime, 280 NumberOfCodeBlocks, 280 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 267 ConstructedInterpolants, 0 QuantifiedInterpolants, 2597 SizeOfPredicates, 9 NumberOfNonLiveVariables, 637 ConjunctsInSsa, 145 ConjunctsInUnsatCore, 13 InterpolantComputations, 3 PerfectInterpolantSequences, 36/216 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...