/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/eca-rers2012/Problem10_label43.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 18:37:17,813 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 18:37:17,818 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 18:37:17,884 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-10-23 18:37:18,008 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 [2020-10-23 18:37:18,069 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 18:37:18,070 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 18:37:18,075 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-23 18:37:18,075 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-23 18:37:18,075 INFO L138 SettingsManager]: * Use SBE=true [2020-10-23 18:37:18,076 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 18:37:18,076 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 18:37:18,076 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 18:37:18,076 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 18:37:18,077 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 18:37:18,078 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 18:37:18,079 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 18:37:18,079 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 18:37:18,079 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 18:37:18,079 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 18:37:18,079 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 18:37:18,080 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 18:37:18,080 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 18:37:18,080 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-23 18:37:18,080 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 18:37:18,081 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 18:37:18,081 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 18:37:18,081 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 18:37:18,082 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-23 18:37:18,082 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-23 18:37:18,082 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-23 18:37:18,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-23 18:37:18,083 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 18:37:18,083 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-23 18:37:18,083 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 18:37:18,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 18:37:18,616 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 18:37:18,621 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 18:37:18,622 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 18:37:18,623 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 18:37:18,625 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label43.c [2020-10-23 18:37:18,717 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3727c4499/fd4916c6390048ed9709aad72d6336aa/FLAG067cba9fd [2020-10-23 18:37:19,582 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 18:37:19,586 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label43.c [2020-10-23 18:37:19,621 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3727c4499/fd4916c6390048ed9709aad72d6336aa/FLAG067cba9fd [2020-10-23 18:37:19,763 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3727c4499/fd4916c6390048ed9709aad72d6336aa [2020-10-23 18:37:19,769 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 18:37:19,780 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 18:37:19,786 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 18:37:19,786 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 18:37:19,791 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 18:37:19,793 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:37:19" (1/1) ... [2020-10-23 18:37:19,804 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7653d3e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:37:19, skipping insertion in model container [2020-10-23 18:37:19,804 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:37:19" (1/1) ... [2020-10-23 18:37:19,815 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 18:37:19,897 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 18:37:20,478 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:37:20,501 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 18:37:20,715 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:37:20,745 INFO L208 MainTranslator]: Completed translation [2020-10-23 18:37:20,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:37:20 WrapperNode [2020-10-23 18:37:20,746 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 18:37:20,748 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 18:37:20,748 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 18:37:20,748 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 18:37:20,763 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:37:20" (1/1) ... [2020-10-23 18:37:20,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:37:20" (1/1) ... [2020-10-23 18:37:20,786 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:37:20" (1/1) ... [2020-10-23 18:37:20,786 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:37:20" (1/1) ... [2020-10-23 18:37:20,829 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:37:20" (1/1) ... [2020-10-23 18:37:20,845 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:37:20" (1/1) ... [2020-10-23 18:37:20,854 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:37:20" (1/1) ... [2020-10-23 18:37:20,874 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 18:37:20,875 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 18:37:20,875 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 18:37:20,875 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 18:37:20,880 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:37:20" (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 [2020-10-23 18:37:20,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 18:37:20,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 18:37:20,976 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 18:37:20,976 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-23 18:37:20,976 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 18:37:20,978 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-23 18:37:20,978 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 18:37:20,978 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 18:37:20,978 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 18:37:20,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 18:37:20,979 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 18:37:20,980 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-23 18:37:20,980 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 18:37:20,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 18:37:20,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 18:37:20,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 18:37:20,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 18:37:20,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 18:37:20,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 18:37:22,661 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 18:37:22,661 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-23 18:37:22,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:37:22 BoogieIcfgContainer [2020-10-23 18:37:22,664 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 18:37:22,666 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 18:37:22,666 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 18:37:22,671 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 18:37:22,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 06:37:19" (1/3) ... [2020-10-23 18:37:22,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ecce4d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:37:22, skipping insertion in model container [2020-10-23 18:37:22,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:37:20" (2/3) ... [2020-10-23 18:37:22,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ecce4d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:37:22, skipping insertion in model container [2020-10-23 18:37:22,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:37:22" (3/3) ... [2020-10-23 18:37:22,675 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label43.c [2020-10-23 18:37:22,688 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-23 18:37:22,695 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 18:37:22,713 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 18:37:22,747 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 18:37:22,747 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 18:37:22,747 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-23 18:37:22,748 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 18:37:22,748 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 18:37:22,748 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 18:37:22,748 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 18:37:22,748 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 18:37:22,776 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states. [2020-10-23 18:37:22,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-23 18:37:22,785 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:37:22,787 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:37:22,788 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:37:22,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:37:22,795 INFO L82 PathProgramCache]: Analyzing trace with hash -1695836620, now seen corresponding path program 1 times [2020-10-23 18:37:22,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:37:22,808 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903896203] [2020-10-23 18:37:22,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:37:22,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:23,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:37:23,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:23,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:37:23,436 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903896203] [2020-10-23 18:37:23,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:37:23,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 18:37:23,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491628870] [2020-10-23 18:37:23,445 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-23 18:37:23,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:37:23,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-23 18:37:23,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-23 18:37:23,465 INFO L87 Difference]: Start difference. First operand 219 states. Second operand 5 states. [2020-10-23 18:37:26,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:37:26,719 INFO L93 Difference]: Finished difference Result 735 states and 1307 transitions. [2020-10-23 18:37:26,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-23 18:37:26,722 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 42 [2020-10-23 18:37:26,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:37:26,742 INFO L225 Difference]: With dead ends: 735 [2020-10-23 18:37:26,742 INFO L226 Difference]: Without dead ends: 448 [2020-10-23 18:37:26,752 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-23 18:37:26,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2020-10-23 18:37:26,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 442. [2020-10-23 18:37:26,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2020-10-23 18:37:26,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 673 transitions. [2020-10-23 18:37:26,862 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 673 transitions. Word has length 42 [2020-10-23 18:37:26,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:37:26,863 INFO L481 AbstractCegarLoop]: Abstraction has 442 states and 673 transitions. [2020-10-23 18:37:26,863 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-23 18:37:26,863 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 673 transitions. [2020-10-23 18:37:26,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-23 18:37:26,869 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:37:26,870 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:37:26,870 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 18:37:26,871 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:37:26,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:37:26,872 INFO L82 PathProgramCache]: Analyzing trace with hash -2087357916, now seen corresponding path program 1 times [2020-10-23 18:37:26,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:37:26,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088099647] [2020-10-23 18:37:26,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:37:26,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:27,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:37:27,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:27,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:37:27,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:27,231 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:37:27,232 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088099647] [2020-10-23 18:37:27,232 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:37:27,232 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-23 18:37:27,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948527534] [2020-10-23 18:37:27,235 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-23 18:37:27,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:37:27,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-23 18:37:27,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-23 18:37:27,237 INFO L87 Difference]: Start difference. First operand 442 states and 673 transitions. Second operand 8 states. [2020-10-23 18:37:29,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:37:29,777 INFO L93 Difference]: Finished difference Result 1043 states and 1614 transitions. [2020-10-23 18:37:29,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-23 18:37:29,779 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 115 [2020-10-23 18:37:29,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:37:29,784 INFO L225 Difference]: With dead ends: 1043 [2020-10-23 18:37:29,785 INFO L226 Difference]: Without dead ends: 607 [2020-10-23 18:37:29,787 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-23 18:37:29,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2020-10-23 18:37:29,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 593. [2020-10-23 18:37:29,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 593 states. [2020-10-23 18:37:29,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 830 transitions. [2020-10-23 18:37:29,849 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 830 transitions. Word has length 115 [2020-10-23 18:37:29,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:37:29,850 INFO L481 AbstractCegarLoop]: Abstraction has 593 states and 830 transitions. [2020-10-23 18:37:29,850 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-23 18:37:29,850 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 830 transitions. [2020-10-23 18:37:29,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-23 18:37:29,854 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:37:29,854 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:37:29,855 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 18:37:29,855 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:37:29,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:37:29,856 INFO L82 PathProgramCache]: Analyzing trace with hash -2048344808, now seen corresponding path program 1 times [2020-10-23 18:37:29,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:37:29,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705130777] [2020-10-23 18:37:29,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:37:29,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:30,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:37:30,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:30,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:37:30,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:30,242 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:37:30,243 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705130777] [2020-10-23 18:37:30,243 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [83959850] [2020-10-23 18:37:30,243 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 [2020-10-23 18:37:30,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:30,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-23 18:37:30,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:37:30,496 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 18:37:30,599 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-23 18:37:30,627 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-23 18:37:30,885 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 18:37:31,043 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:37:31,044 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:37:31,044 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 10 [2020-10-23 18:37:31,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910238358] [2020-10-23 18:37:31,045 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 18:37:31,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:37:31,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 18:37:31,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-23 18:37:31,047 INFO L87 Difference]: Start difference. First operand 593 states and 830 transitions. Second operand 10 states. [2020-10-23 18:37:35,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:37:35,963 INFO L93 Difference]: Finished difference Result 2287 states and 3598 transitions. [2020-10-23 18:37:35,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-23 18:37:35,964 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 121 [2020-10-23 18:37:35,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:37:36,001 INFO L225 Difference]: With dead ends: 2287 [2020-10-23 18:37:36,002 INFO L226 Difference]: Without dead ends: 1700 [2020-10-23 18:37:36,009 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 121 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=87, Invalid=219, Unknown=0, NotChecked=0, Total=306 [2020-10-23 18:37:36,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1700 states. [2020-10-23 18:37:36,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1700 to 1344. [2020-10-23 18:37:36,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1344 states. [2020-10-23 18:37:36,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1344 states to 1344 states and 1876 transitions. [2020-10-23 18:37:36,156 INFO L78 Accepts]: Start accepts. Automaton has 1344 states and 1876 transitions. Word has length 121 [2020-10-23 18:37:36,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:37:36,157 INFO L481 AbstractCegarLoop]: Abstraction has 1344 states and 1876 transitions. [2020-10-23 18:37:36,157 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 18:37:36,157 INFO L276 IsEmpty]: Start isEmpty. Operand 1344 states and 1876 transitions. [2020-10-23 18:37:36,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-10-23 18:37:36,165 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:37:36,166 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:37:36,380 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-10-23 18:37:36,381 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:37:36,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:37:36,382 INFO L82 PathProgramCache]: Analyzing trace with hash -513013164, now seen corresponding path program 1 times [2020-10-23 18:37:36,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:37:36,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718428823] [2020-10-23 18:37:36,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:37:36,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:36,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:37:36,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:36,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:37:36,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:36,826 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:37:36,827 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718428823] [2020-10-23 18:37:36,828 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:37:36,828 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 18:37:36,828 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582138845] [2020-10-23 18:37:36,830 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-23 18:37:36,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:37:36,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-23 18:37:36,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-23 18:37:36,833 INFO L87 Difference]: Start difference. First operand 1344 states and 1876 transitions. Second operand 7 states. [2020-10-23 18:37:39,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:37:39,120 INFO L93 Difference]: Finished difference Result 3455 states and 4980 transitions. [2020-10-23 18:37:39,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-23 18:37:39,121 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 178 [2020-10-23 18:37:39,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:37:39,136 INFO L225 Difference]: With dead ends: 3455 [2020-10-23 18:37:39,136 INFO L226 Difference]: Without dead ends: 2117 [2020-10-23 18:37:39,142 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-23 18:37:39,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2117 states. [2020-10-23 18:37:39,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2117 to 1938. [2020-10-23 18:37:39,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1938 states. [2020-10-23 18:37:39,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1938 states to 1938 states and 2571 transitions. [2020-10-23 18:37:39,285 INFO L78 Accepts]: Start accepts. Automaton has 1938 states and 2571 transitions. Word has length 178 [2020-10-23 18:37:39,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:37:39,287 INFO L481 AbstractCegarLoop]: Abstraction has 1938 states and 2571 transitions. [2020-10-23 18:37:39,287 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-23 18:37:39,287 INFO L276 IsEmpty]: Start isEmpty. Operand 1938 states and 2571 transitions. [2020-10-23 18:37:39,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-10-23 18:37:39,300 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:37:39,300 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:37:39,301 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 18:37:39,301 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:37:39,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:37:39,302 INFO L82 PathProgramCache]: Analyzing trace with hash 744287608, now seen corresponding path program 1 times [2020-10-23 18:37:39,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:37:39,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425133586] [2020-10-23 18:37:39,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:37:39,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:39,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:37:39,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:39,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:37:39,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:39,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-23 18:37:39,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:39,836 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 135 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-23 18:37:39,836 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425133586] [2020-10-23 18:37:39,837 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [165259816] [2020-10-23 18:37:39,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2020-10-23 18:37:39,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:37:39,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:37:39,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:37:40,150 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 136 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:37:40,151 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:37:40,151 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2020-10-23 18:37:40,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034345952] [2020-10-23 18:37:40,153 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 18:37:40,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:37:40,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 18:37:40,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-23 18:37:40,154 INFO L87 Difference]: Start difference. First operand 1938 states and 2571 transitions. Second operand 10 states. [2020-10-23 18:37:44,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:37:44,682 INFO L93 Difference]: Finished difference Result 5514 states and 7656 transitions. [2020-10-23 18:37:44,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-23 18:37:44,683 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 248 [2020-10-23 18:37:44,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:37:44,684 INFO L225 Difference]: With dead ends: 5514 [2020-10-23 18:37:44,684 INFO L226 Difference]: Without dead ends: 0 [2020-10-23 18:37:44,700 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=140, Invalid=412, Unknown=0, NotChecked=0, Total=552 [2020-10-23 18:37:44,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-23 18:37:44,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-23 18:37:44,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-23 18:37:44,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-23 18:37:44,701 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 248 [2020-10-23 18:37:44,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:37:44,702 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-23 18:37:44,702 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 18:37:44,702 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-23 18:37:44,702 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-23 18:37:44,916 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:37:44,921 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-23 18:37:45,045 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 104 [2020-10-23 18:37:45,689 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 30 [2020-10-23 18:37:46,192 WARN L193 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 24 [2020-10-23 18:37:46,410 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 12 [2020-10-23 18:37:46,585 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 30 [2020-10-23 18:37:46,590 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-23 18:37:46,590 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-23 18:37:46,590 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-23 18:37:46,590 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-23 18:37:46,591 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-23 18:37:46,591 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~inputB~0 |old(~inputB~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~a4~0 |old(~a4~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a10~0 |old(~a10~0)|)) [2020-10-23 18:37:46,591 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-23 18:37:46,591 INFO L274 CegarLoopResult]: For program point L531(lines 531 574) no Hoare annotation was computed. [2020-10-23 18:37:46,591 INFO L274 CegarLoopResult]: For program point L432(lines 432 574) no Hoare annotation was computed. [2020-10-23 18:37:46,591 INFO L274 CegarLoopResult]: For program point L267(lines 267 574) no Hoare annotation was computed. [2020-10-23 18:37:46,591 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-23 18:37:46,592 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-23 18:37:46,592 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-23 18:37:46,592 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-23 18:37:46,593 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-23 18:37:46,593 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-23 18:37:46,594 INFO L274 CegarLoopResult]: For program point L565(lines 565 574) no Hoare annotation was computed. [2020-10-23 18:37:46,594 INFO L274 CegarLoopResult]: For program point L400(lines 400 574) no Hoare annotation was computed. [2020-10-23 18:37:46,595 INFO L274 CegarLoopResult]: For program point L367(lines 367 574) no Hoare annotation was computed. [2020-10-23 18:37:46,596 INFO L274 CegarLoopResult]: For program point L467(lines 467 574) no Hoare annotation was computed. [2020-10-23 18:37:46,596 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,596 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,597 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,597 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,597 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,597 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,597 INFO L274 CegarLoopResult]: For program point L501(lines 501 574) no Hoare annotation was computed. [2020-10-23 18:37:46,598 INFO L274 CegarLoopResult]: For program point L303(lines 303 574) no Hoare annotation was computed. [2020-10-23 18:37:46,599 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-23 18:37:46,599 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-23 18:37:46,599 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-23 18:37:46,600 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-23 18:37:46,600 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-23 18:37:46,600 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-23 18:37:46,601 INFO L274 CegarLoopResult]: For program point L337(lines 337 574) no Hoare annotation was computed. [2020-10-23 18:37:46,601 INFO L274 CegarLoopResult]: For program point L238(lines 238 574) no Hoare annotation was computed. [2020-10-23 18:37:46,601 INFO L274 CegarLoopResult]: For program point L536(lines 536 574) no Hoare annotation was computed. [2020-10-23 18:37:46,601 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,601 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,601 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,601 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,602 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,602 INFO L274 CegarLoopResult]: For program point L438(lines 438 574) no Hoare annotation was computed. [2020-10-23 18:37:46,602 INFO L274 CegarLoopResult]: For program point L405(lines 405 574) no Hoare annotation was computed. [2020-10-23 18:37:46,602 INFO L274 CegarLoopResult]: For program point L372(lines 372 574) no Hoare annotation was computed. [2020-10-23 18:37:46,602 INFO L274 CegarLoopResult]: For program point L273(lines 273 574) no Hoare annotation was computed. [2020-10-23 18:37:46,603 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-23 18:37:46,603 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-23 18:37:46,603 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-23 18:37:46,603 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-23 18:37:46,603 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-23 18:37:46,603 INFO L274 CegarLoopResult]: For program point L571(lines 571 574) no Hoare annotation was computed. [2020-10-23 18:37:46,604 INFO L274 CegarLoopResult]: For program point L241(lines 241 574) no Hoare annotation was computed. [2020-10-23 18:37:46,604 INFO L274 CegarLoopResult]: For program point L506(lines 506 574) no Hoare annotation was computed. [2020-10-23 18:37:46,605 INFO L274 CegarLoopResult]: For program point L473(lines 473 574) no Hoare annotation was computed. [2020-10-23 18:37:46,605 INFO L274 CegarLoopResult]: For program point L308(lines 308 574) no Hoare annotation was computed. [2020-10-23 18:37:46,605 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,606 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,608 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,608 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,608 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,608 INFO L274 CegarLoopResult]: For program point L342(lines 342 574) no Hoare annotation was computed. [2020-10-23 18:37:46,608 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-23 18:37:46,608 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-23 18:37:46,608 INFO L270 CegarLoopResult]: At program point L111(line 111) the Hoare annotation is: (and (not (<= 23 |old(~a1~0)|)) (not (<= 2 |old(~a10~0)|)) (= 8 |old(~a19~0)|)) [2020-10-23 18:37:46,609 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-23 18:37:46,609 INFO L274 CegarLoopResult]: For program point L111-1(line 111) no Hoare annotation was computed. [2020-10-23 18:37:46,609 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-23 18:37:46,609 INFO L274 CegarLoopResult]: For program point L542(lines 542 574) no Hoare annotation was computed. [2020-10-23 18:37:46,609 INFO L274 CegarLoopResult]: For program point L410(lines 410 574) no Hoare annotation was computed. [2020-10-23 18:37:46,609 INFO L274 CegarLoopResult]: For program point L377(lines 377 574) no Hoare annotation was computed. [2020-10-23 18:37:46,609 INFO L274 CegarLoopResult]: For program point L212(lines 212 574) no Hoare annotation was computed. [2020-10-23 18:37:46,609 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,610 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,610 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,610 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,610 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,610 INFO L274 CegarLoopResult]: For program point L444(lines 444 574) no Hoare annotation was computed. [2020-10-23 18:37:46,610 INFO L274 CegarLoopResult]: For program point L279(lines 279 574) no Hoare annotation was computed. [2020-10-23 18:37:46,610 INFO L274 CegarLoopResult]: For program point L246(lines 246 574) no Hoare annotation was computed. [2020-10-23 18:37:46,610 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-23 18:37:46,610 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-23 18:37:46,611 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-23 18:37:46,611 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-23 18:37:46,611 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-23 18:37:46,611 INFO L274 CegarLoopResult]: For program point L511(lines 511 574) no Hoare annotation was computed. [2020-10-23 18:37:46,611 INFO L274 CegarLoopResult]: For program point L478(lines 478 574) no Hoare annotation was computed. [2020-10-23 18:37:46,611 INFO L274 CegarLoopResult]: For program point L380(lines 380 574) no Hoare annotation was computed. [2020-10-23 18:37:46,611 INFO L274 CegarLoopResult]: For program point L347(lines 347 574) no Hoare annotation was computed. [2020-10-23 18:37:46,611 INFO L274 CegarLoopResult]: For program point L314(lines 314 574) no Hoare annotation was computed. [2020-10-23 18:37:46,611 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,612 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,612 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,613 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,613 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,614 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-23 18:37:46,614 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-23 18:37:46,614 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-23 18:37:46,615 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-23 18:37:46,615 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-23 18:37:46,615 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,615 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,616 INFO L274 CegarLoopResult]: For program point L547(lines 547 574) no Hoare annotation was computed. [2020-10-23 18:37:46,616 INFO L274 CegarLoopResult]: For program point L217(lines 217 574) no Hoare annotation was computed. [2020-10-23 18:37:46,616 INFO L274 CegarLoopResult]: For program point L416(lines 416 574) no Hoare annotation was computed. [2020-10-23 18:37:46,616 INFO L274 CegarLoopResult]: For program point L251(lines 251 574) no Hoare annotation was computed. [2020-10-23 18:37:46,616 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,616 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,616 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,616 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,617 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,617 INFO L274 CegarLoopResult]: For program point L516(lines 516 574) no Hoare annotation was computed. [2020-10-23 18:37:46,619 INFO L274 CegarLoopResult]: For program point L483(lines 483 574) no Hoare annotation was computed. [2020-10-23 18:37:46,620 INFO L274 CegarLoopResult]: For program point L450(lines 450 574) no Hoare annotation was computed. [2020-10-23 18:37:46,621 INFO L274 CegarLoopResult]: For program point L285(lines 285 574) no Hoare annotation was computed. [2020-10-23 18:37:46,621 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-23 18:37:46,621 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-23 18:37:46,621 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-23 18:37:46,621 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-23 18:37:46,621 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-23 18:37:46,621 INFO L274 CegarLoopResult]: For program point L550(lines 550 574) no Hoare annotation was computed. [2020-10-23 18:37:46,621 INFO L274 CegarLoopResult]: For program point L385(lines 385 574) no Hoare annotation was computed. [2020-10-23 18:37:46,625 INFO L274 CegarLoopResult]: For program point L319(lines 319 574) no Hoare annotation was computed. [2020-10-23 18:37:46,626 INFO L274 CegarLoopResult]: For program point L353(lines 353 574) no Hoare annotation was computed. [2020-10-23 18:37:46,627 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,627 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,627 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,627 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,627 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-23 18:37:46,627 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,627 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,628 INFO L274 CegarLoopResult]: For program point L519(lines 519 574) no Hoare annotation was computed. [2020-10-23 18:37:46,628 INFO L274 CegarLoopResult]: For program point L288(lines 288 574) no Hoare annotation was computed. [2020-10-23 18:37:46,628 INFO L274 CegarLoopResult]: For program point L222(lines 222 574) no Hoare annotation was computed. [2020-10-23 18:37:46,628 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-23 18:37:46,628 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-23 18:37:46,628 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-23 18:37:46,628 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-23 18:37:46,628 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-23 18:37:46,628 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-23 18:37:46,629 INFO L274 CegarLoopResult]: For program point L421(lines 421 574) no Hoare annotation was computed. [2020-10-23 18:37:46,629 INFO L274 CegarLoopResult]: For program point L322(lines 322 574) no Hoare annotation was computed. [2020-10-23 18:37:46,629 INFO L274 CegarLoopResult]: For program point L256(lines 256 574) no Hoare annotation was computed. [2020-10-23 18:37:46,629 INFO L274 CegarLoopResult]: For program point L356(lines 356 574) no Hoare annotation was computed. [2020-10-23 18:37:46,629 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,629 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,629 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,629 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,629 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,629 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,630 INFO L274 CegarLoopResult]: For program point L489(lines 489 574) no Hoare annotation was computed. [2020-10-23 18:37:46,630 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 576) the Hoare annotation is: (let ((.cse0 (and (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)))) (and (or .cse0 (= 8 |old(~a19~0)|)) (or .cse0 (not (<= 2 |old(~a10~0)|))) (or (not (<= 23 |old(~a1~0)|)) .cse0))) [2020-10-23 18:37:46,630 INFO L274 CegarLoopResult]: For program point L456(lines 456 574) no Hoare annotation was computed. [2020-10-23 18:37:46,630 INFO L274 CegarLoopResult]: For program point L390(lines 390 574) no Hoare annotation was computed. [2020-10-23 18:37:46,630 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-23 18:37:46,630 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-23 18:37:46,630 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-23 18:37:46,630 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-23 18:37:46,631 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-23 18:37:46,631 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-23 18:37:46,631 INFO L274 CegarLoopResult]: For program point L556(lines 556 574) no Hoare annotation was computed. [2020-10-23 18:37:46,631 INFO L274 CegarLoopResult]: For program point L325(lines 325 574) no Hoare annotation was computed. [2020-10-23 18:37:46,631 INFO L274 CegarLoopResult]: For program point L359(lines 359 574) no Hoare annotation was computed. [2020-10-23 18:37:46,631 INFO L274 CegarLoopResult]: For program point L293(lines 293 574) no Hoare annotation was computed. [2020-10-23 18:37:46,631 INFO L274 CegarLoopResult]: For program point L227(lines 227 574) no Hoare annotation was computed. [2020-10-23 18:37:46,631 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,632 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,632 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,632 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,632 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,632 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,632 INFO L274 CegarLoopResult]: For program point L525(lines 525 574) no Hoare annotation was computed. [2020-10-23 18:37:46,632 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-23 18:37:46,632 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-23 18:37:46,633 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-23 18:37:46,633 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-23 18:37:46,633 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-23 18:37:46,633 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-23 18:37:46,633 INFO L274 CegarLoopResult]: For program point L559(lines 559 574) no Hoare annotation was computed. [2020-10-23 18:37:46,633 INFO L274 CegarLoopResult]: For program point L427(lines 427 574) no Hoare annotation was computed. [2020-10-23 18:37:46,633 INFO L274 CegarLoopResult]: For program point L328(lines 328 574) no Hoare annotation was computed. [2020-10-23 18:37:46,633 INFO L274 CegarLoopResult]: For program point L262(lines 262 574) no Hoare annotation was computed. [2020-10-23 18:37:46,633 INFO L274 CegarLoopResult]: For program point L395(lines 395 574) no Hoare annotation was computed. [2020-10-23 18:37:46,633 INFO L274 CegarLoopResult]: For program point L362(lines 362 574) no Hoare annotation was computed. [2020-10-23 18:37:46,634 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,634 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,634 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,634 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,634 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,634 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,634 INFO L274 CegarLoopResult]: For program point L528(lines 528 574) no Hoare annotation was computed. [2020-10-23 18:37:46,634 INFO L274 CegarLoopResult]: For program point L495(lines 495 574) no Hoare annotation was computed. [2020-10-23 18:37:46,635 INFO L274 CegarLoopResult]: For program point L462(lines 462 574) no Hoare annotation was computed. [2020-10-23 18:37:46,635 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-23 18:37:46,635 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-23 18:37:46,635 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-23 18:37:46,635 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-23 18:37:46,635 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-23 18:37:46,635 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-23 18:37:46,635 INFO L274 CegarLoopResult]: For program point L331(lines 331 574) no Hoare annotation was computed. [2020-10-23 18:37:46,635 INFO L274 CegarLoopResult]: For program point L298(lines 298 574) no Hoare annotation was computed. [2020-10-23 18:37:46,636 INFO L274 CegarLoopResult]: For program point L233(lines 233 574) no Hoare annotation was computed. [2020-10-23 18:37:46,636 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,636 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,636 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,636 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,636 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,636 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 576) no Hoare annotation was computed. [2020-10-23 18:37:46,641 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-23 18:37:46,641 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= 23 ~a1~0) (<= 9 ~a19~0) (= ~a10~0 0) (<= ~a19~0 9)) [2020-10-23 18:37:46,642 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-23 18:37:46,642 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-23 18:37:46,642 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 578 594) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (and (<= 9 ~a19~0) (<= ~a19~0 9) (= ~a1~0 |old(~a1~0)|) (= ~a10~0 |old(~a10~0)|)) (not (<= 9 |old(~a19~0)|)) (not (<= |old(~a19~0)| 9)) (not (= 0 |old(~a10~0)|))) [2020-10-23 18:37:46,642 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 578 594) no Hoare annotation was computed. [2020-10-23 18:37:46,642 INFO L270 CegarLoopResult]: At program point L592(line 592) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9))) (or (not (<= 23 |old(~a1~0)|)) (and (<= 23 ~a1~0) .cse0) (and (not (= ~a19~0 8)) .cse0) (not (<= 9 |old(~a19~0)|)) (and (<= 9 ~a19~0) (<= |old(~a10~0)| ~a10~0)) (not (<= |old(~a19~0)| 9)) (not (= 0 |old(~a10~0)|)) (<= 2 ~a10~0))) [2020-10-23 18:37:46,642 INFO L274 CegarLoopResult]: For program point L592-1(line 592) no Hoare annotation was computed. [2020-10-23 18:37:46,642 INFO L274 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-23 18:37:46,643 INFO L270 CegarLoopResult]: At program point L584-2(lines 584 593) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9))) (or (not (<= 23 |old(~a1~0)|)) (and (<= 23 ~a1~0) .cse0) (and (not (= ~a19~0 8)) .cse0) (not (<= 9 |old(~a19~0)|)) (and (<= 9 ~a19~0) (<= |old(~a10~0)| ~a10~0)) (not (<= |old(~a19~0)| 9)) (not (= 0 |old(~a10~0)|)) (<= 2 ~a10~0))) [2020-10-23 18:37:46,643 INFO L274 CegarLoopResult]: For program point L584-3(lines 578 594) no Hoare annotation was computed. [2020-10-23 18:37:46,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 06:37:46 BoogieIcfgContainer [2020-10-23 18:37:46,677 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 18:37:46,681 INFO L168 Benchmark]: Toolchain (without parser) took 26906.24 ms. Allocated memory was 151.0 MB in the beginning and 388.0 MB in the end (delta: 237.0 MB). Free memory was 123.9 MB in the beginning and 265.0 MB in the end (delta: -141.1 MB). Peak memory consumption was 228.1 MB. Max. memory is 8.0 GB. [2020-10-23 18:37:46,683 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 151.0 MB. Free memory is still 123.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 18:37:46,684 INFO L168 Benchmark]: CACSL2BoogieTranslator took 960.83 ms. Allocated memory is still 151.0 MB. Free memory was 123.4 MB in the beginning and 128.7 MB in the end (delta: -5.4 MB). Peak memory consumption was 26.3 MB. Max. memory is 8.0 GB. [2020-10-23 18:37:46,693 INFO L168 Benchmark]: Boogie Preprocessor took 126.04 ms. Allocated memory is still 151.0 MB. Free memory was 128.7 MB in the beginning and 123.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-23 18:37:46,694 INFO L168 Benchmark]: RCFGBuilder took 1789.53 ms. Allocated memory is still 151.0 MB. Free memory was 123.9 MB in the beginning and 104.7 MB in the end (delta: 19.2 MB). Peak memory consumption was 80.6 MB. Max. memory is 8.0 GB. [2020-10-23 18:37:46,695 INFO L168 Benchmark]: TraceAbstraction took 24011.49 ms. Allocated memory was 151.0 MB in the beginning and 388.0 MB in the end (delta: 237.0 MB). Free memory was 104.2 MB in the beginning and 265.0 MB in the end (delta: -160.8 MB). Peak memory consumption was 207.2 MB. Max. memory is 8.0 GB. [2020-10-23 18:37:46,704 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 151.0 MB. Free memory is still 123.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 960.83 ms. Allocated memory is still 151.0 MB. Free memory was 123.4 MB in the beginning and 128.7 MB in the end (delta: -5.4 MB). Peak memory consumption was 26.3 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 126.04 ms. Allocated memory is still 151.0 MB. Free memory was 128.7 MB in the beginning and 123.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1789.53 ms. Allocated memory is still 151.0 MB. Free memory was 123.9 MB in the beginning and 104.7 MB in the end (delta: 19.2 MB). Peak memory consumption was 80.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 24011.49 ms. Allocated memory was 151.0 MB in the beginning and 388.0 MB in the end (delta: 237.0 MB). Free memory was 104.2 MB in the beginning and 265.0 MB in the end (delta: -160.8 MB). Peak memory consumption was 207.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 584]: Loop Invariant Derived loop invariant: ((((((!(23 <= \old(a1)) || (23 <= a1 && a19 <= 9)) || (!(a19 == 8) && a19 <= 9)) || !(9 <= \old(a19))) || (9 <= a19 && \old(a10) <= a10)) || !(\old(a19) <= 9)) || !(0 == \old(a10))) || 2 <= a10 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 219 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 22.1s, OverallIterations: 5, TraceHistogramMax: 3, AutomataDifference: 17.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 145 SDtfs, 3106 SDslu, 258 SDs, 0 SdLazy, 6945 SolverSat, 1280 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 451 GetRequests, 386 SyntacticMatches, 1 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1938occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 555 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 133 PreInvPairs, 195 NumberOfFragments, 247 HoareAnnotationTreeSize, 133 FomulaSimplifications, 41058 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 9 FomulaSimplificationsInter, 3796 FormulaSimplificationTreeSizeReductionInter, 1.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 1073 NumberOfCodeBlocks, 1073 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1066 ConstructedInterpolants, 2 QuantifiedInterpolants, 520113 SizeOfPredicates, 3 NumberOfNonLiveVariables, 816 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 346/412 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...