/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy CAMEL_NO_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label40.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-19 21:36:43,756 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-19 21:36:43,759 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-19 21:36:43,773 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-07-19 21:36:43,784 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-19 21:36:43,785 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-19 21:36:43,786 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-19 21:36:43,787 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-19 21:36:43,788 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-19 21:36:43,789 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-19 21:36:43,791 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-19 21:36:43,793 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-19 21:36:43,794 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-19 21:36:43,795 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-19 21:36:43,797 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-19 21:36:43,797 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-19 21:36:43,800 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-19 21:36:43,810 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 [2020-07-19 21:36:43,825 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-19 21:36:43,825 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-19 21:36:43,827 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-19 21:36:43,827 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-19 21:36:43,827 INFO L138 SettingsManager]: * Use SBE=true [2020-07-19 21:36:43,827 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-19 21:36:43,827 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-19 21:36:43,828 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-19 21:36:43,828 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-19 21:36:43,828 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-19 21:36:43,828 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-19 21:36:43,828 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-19 21:36:43,829 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-19 21:36:43,829 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-19 21:36:43,829 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-19 21:36:43,829 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-19 21:36:43,829 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-19 21:36:43,830 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-19 21:36:43,830 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-19 21:36:43,830 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-19 21:36:43,830 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-19 21:36:43,830 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 21:36:43,831 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-19 21:36:43,831 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-19 21:36:43,831 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-19 21:36:43,831 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-19 21:36:43,831 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-19 21:36:43,832 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-19 21:36:43,832 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-19 21:36:43,832 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_NO_AM [2020-07-19 21:36:44,133 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-19 21:36:44,151 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-19 21:36:44,155 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-19 21:36:44,157 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-19 21:36:44,159 INFO L275 PluginConnector]: CDTParser initialized [2020-07-19 21:36:44,160 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label40.c [2020-07-19 21:36:44,236 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f48f9f2d6/31b801d98ec5439ab7c57d9f1a345c81/FLAGb5f0ba47c [2020-07-19 21:36:44,857 INFO L306 CDTParser]: Found 1 translation units. [2020-07-19 21:36:44,858 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label40.c [2020-07-19 21:36:44,874 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f48f9f2d6/31b801d98ec5439ab7c57d9f1a345c81/FLAGb5f0ba47c [2020-07-19 21:36:45,092 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f48f9f2d6/31b801d98ec5439ab7c57d9f1a345c81 [2020-07-19 21:36:45,106 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-19 21:36:45,109 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-19 21:36:45,112 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-19 21:36:45,112 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-19 21:36:45,116 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-19 21:36:45,117 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 09:36:45" (1/1) ... [2020-07-19 21:36:45,120 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ef83f1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:36:45, skipping insertion in model container [2020-07-19 21:36:45,120 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 09:36:45" (1/1) ... [2020-07-19 21:36:45,129 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-19 21:36:45,198 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-19 21:36:45,764 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 21:36:45,770 INFO L203 MainTranslator]: Completed pre-run [2020-07-19 21:36:45,978 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 21:36:45,998 INFO L208 MainTranslator]: Completed translation [2020-07-19 21:36:45,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:36:45 WrapperNode [2020-07-19 21:36:45,999 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-19 21:36:45,999 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-19 21:36:45,999 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-19 21:36:46,000 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-19 21:36:46,011 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:36:45" (1/1) ... [2020-07-19 21:36:46,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:36:45" (1/1) ... [2020-07-19 21:36:46,029 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:36:45" (1/1) ... [2020-07-19 21:36:46,029 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:36:45" (1/1) ... [2020-07-19 21:36:46,076 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:36:45" (1/1) ... [2020-07-19 21:36:46,099 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:36:45" (1/1) ... [2020-07-19 21:36:46,118 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:36:45" (1/1) ... [2020-07-19 21:36:46,130 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-19 21:36:46,133 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-19 21:36:46,133 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-19 21:36:46,133 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-19 21:36:46,135 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:36:45" (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 [2020-07-19 21:36:46,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-19 21:36:46,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-19 21:36:46,224 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-19 21:36:46,225 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-19 21:36:46,225 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-19 21:36:46,225 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-19 21:36:46,225 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-19 21:36:46,225 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-19 21:36:46,226 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-19 21:36:46,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-19 21:36:46,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-19 21:36:47,472 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-19 21:36:47,472 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-19 21:36:47,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 09:36:47 BoogieIcfgContainer [2020-07-19 21:36:47,478 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-19 21:36:47,480 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-19 21:36:47,480 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-19 21:36:47,483 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-19 21:36:47,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 09:36:45" (1/3) ... [2020-07-19 21:36:47,485 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e9343af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 09:36:47, skipping insertion in model container [2020-07-19 21:36:47,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:36:45" (2/3) ... [2020-07-19 21:36:47,486 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e9343af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 09:36:47, skipping insertion in model container [2020-07-19 21:36:47,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 09:36:47" (3/3) ... [2020-07-19 21:36:47,488 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label40.c [2020-07-19 21:36:47,499 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-19 21:36:47,508 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-19 21:36:47,523 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-19 21:36:47,549 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-19 21:36:47,550 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-19 21:36:47,550 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-19 21:36:47,550 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-19 21:36:47,550 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-19 21:36:47,550 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-19 21:36:47,551 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-19 21:36:47,551 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-19 21:36:47,575 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-19 21:36:47,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-07-19 21:36:47,586 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:36:47,587 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:36:47,588 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:36:47,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:36:47,595 INFO L82 PathProgramCache]: Analyzing trace with hash -1033095319, now seen corresponding path program 1 times [2020-07-19 21:36:47,605 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:36:47,606 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123729211] [2020-07-19 21:36:47,606 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@756288fb [2020-07-19 21:36:47,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:36:48,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:36:48,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:36:48,177 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123729211] [2020-07-19 21:36:48,178 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:36:48,179 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-19 21:36:48,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962142457] [2020-07-19 21:36:48,185 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-19 21:36:48,186 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:36:48,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-19 21:36:48,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-19 21:36:48,203 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 4 states. [2020-07-19 21:36:49,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:36:49,801 INFO L93 Difference]: Finished difference Result 644 states and 1094 transitions. [2020-07-19 21:36:49,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-19 21:36:49,803 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 95 [2020-07-19 21:36:49,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:36:49,826 INFO L225 Difference]: With dead ends: 644 [2020-07-19 21:36:49,826 INFO L226 Difference]: Without dead ends: 334 [2020-07-19 21:36:49,840 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-19 21:36:49,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2020-07-19 21:36:49,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 327. [2020-07-19 21:36:49,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 327 states. [2020-07-19 21:36:49,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 478 transitions. [2020-07-19 21:36:49,920 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 478 transitions. Word has length 95 [2020-07-19 21:36:49,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:36:49,921 INFO L479 AbstractCegarLoop]: Abstraction has 327 states and 478 transitions. [2020-07-19 21:36:49,921 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-19 21:36:49,922 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 478 transitions. [2020-07-19 21:36:49,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-07-19 21:36:49,928 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:36:49,928 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-07-19 21:36:49,929 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-19 21:36:49,929 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:36:49,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:36:49,930 INFO L82 PathProgramCache]: Analyzing trace with hash -377311506, now seen corresponding path program 1 times [2020-07-19 21:36:49,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:36:49,930 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738843741] [2020-07-19 21:36:49,930 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@756288fb [2020-07-19 21:36:49,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:36:50,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:36:50,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:36:50,153 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:36:50,154 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738843741] [2020-07-19 21:36:50,154 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1202430399] [2020-07-19 21:36:50,154 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@756288fb 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 [2020-07-19 21:36:50,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:36:50,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-19 21:36:50,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:36:50,328 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:36:50,329 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-19 21:36:50,329 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2020-07-19 21:36:50,330 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705076671] [2020-07-19 21:36:50,331 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-19 21:36:50,332 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:36:50,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-19 21:36:50,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-19 21:36:50,332 INFO L87 Difference]: Start difference. First operand 327 states and 478 transitions. Second operand 3 states. [2020-07-19 21:36:51,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:36:51,054 INFO L93 Difference]: Finished difference Result 943 states and 1397 transitions. [2020-07-19 21:36:51,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-19 21:36:51,055 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 103 [2020-07-19 21:36:51,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:36:51,068 INFO L225 Difference]: With dead ends: 943 [2020-07-19 21:36:51,069 INFO L226 Difference]: Without dead ends: 622 [2020-07-19 21:36:51,071 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-19 21:36:51,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2020-07-19 21:36:51,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 621. [2020-07-19 21:36:51,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 621 states. [2020-07-19 21:36:51,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 878 transitions. [2020-07-19 21:36:51,113 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 878 transitions. Word has length 103 [2020-07-19 21:36:51,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:36:51,113 INFO L479 AbstractCegarLoop]: Abstraction has 621 states and 878 transitions. [2020-07-19 21:36:51,114 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-19 21:36:51,114 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 878 transitions. [2020-07-19 21:36:51,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-07-19 21:36:51,119 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:36:51,120 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2020-07-19 21:36:51,332 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-07-19 21:36:51,333 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:36:51,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:36:51,334 INFO L82 PathProgramCache]: Analyzing trace with hash 549151607, now seen corresponding path program 1 times [2020-07-19 21:36:51,335 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:36:51,335 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549956057] [2020-07-19 21:36:51,336 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@756288fb [2020-07-19 21:36:51,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:36:51,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:36:51,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:36:51,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:36:51,562 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-19 21:36:51,563 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549956057] [2020-07-19 21:36:51,563 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1168857437] [2020-07-19 21:36:51,563 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@756288fb 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 [2020-07-19 21:36:51,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:36:51,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-19 21:36:51,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:36:51,731 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:36:51,731 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:36:51,732 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 11 [2020-07-19 21:36:51,732 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739444359] [2020-07-19 21:36:51,735 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-19 21:36:51,735 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:36:51,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-19 21:36:51,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-07-19 21:36:51,736 INFO L87 Difference]: Start difference. First operand 621 states and 878 transitions. Second operand 11 states. [2020-07-19 21:36:53,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:36:53,275 INFO L93 Difference]: Finished difference Result 1690 states and 2493 transitions. [2020-07-19 21:36:53,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-19 21:36:53,276 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 113 [2020-07-19 21:36:53,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:36:53,284 INFO L225 Difference]: With dead ends: 1690 [2020-07-19 21:36:53,285 INFO L226 Difference]: Without dead ends: 1075 [2020-07-19 21:36:53,287 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2020-07-19 21:36:53,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1075 states. [2020-07-19 21:36:53,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1075 to 902. [2020-07-19 21:36:53,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 902 states. [2020-07-19 21:36:53,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 902 states to 902 states and 1243 transitions. [2020-07-19 21:36:53,338 INFO L78 Accepts]: Start accepts. Automaton has 902 states and 1243 transitions. Word has length 113 [2020-07-19 21:36:53,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:36:53,338 INFO L479 AbstractCegarLoop]: Abstraction has 902 states and 1243 transitions. [2020-07-19 21:36:53,338 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-19 21:36:53,338 INFO L276 IsEmpty]: Start isEmpty. Operand 902 states and 1243 transitions. [2020-07-19 21:36:53,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-07-19 21:36:53,344 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:36:53,344 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-07-19 21:36:53,558 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:36:53,559 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:36:53,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:36:53,560 INFO L82 PathProgramCache]: Analyzing trace with hash -587723324, now seen corresponding path program 1 times [2020-07-19 21:36:53,561 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:36:53,561 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474979116] [2020-07-19 21:36:53,562 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@756288fb [2020-07-19 21:36:53,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:36:53,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:36:53,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:36:53,725 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:36:53,726 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474979116] [2020-07-19 21:36:53,726 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:36:53,726 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-19 21:36:53,727 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335408264] [2020-07-19 21:36:53,727 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 21:36:53,728 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:36:53,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 21:36:53,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-19 21:36:53,728 INFO L87 Difference]: Start difference. First operand 902 states and 1243 transitions. Second operand 8 states. [2020-07-19 21:36:55,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:36:55,683 INFO L93 Difference]: Finished difference Result 2567 states and 3685 transitions. [2020-07-19 21:36:55,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-19 21:36:55,685 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 115 [2020-07-19 21:36:55,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:36:55,697 INFO L225 Difference]: With dead ends: 2567 [2020-07-19 21:36:55,697 INFO L226 Difference]: Without dead ends: 1671 [2020-07-19 21:36:55,700 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2020-07-19 21:36:55,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1671 states. [2020-07-19 21:36:55,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1671 to 1358. [2020-07-19 21:36:55,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1358 states. [2020-07-19 21:36:55,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1358 states to 1358 states and 1769 transitions. [2020-07-19 21:36:55,782 INFO L78 Accepts]: Start accepts. Automaton has 1358 states and 1769 transitions. Word has length 115 [2020-07-19 21:36:55,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:36:55,783 INFO L479 AbstractCegarLoop]: Abstraction has 1358 states and 1769 transitions. [2020-07-19 21:36:55,783 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 21:36:55,783 INFO L276 IsEmpty]: Start isEmpty. Operand 1358 states and 1769 transitions. [2020-07-19 21:36:55,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-07-19 21:36:55,788 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:36:55,788 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:36:55,788 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-19 21:36:55,789 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:36:55,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:36:55,789 INFO L82 PathProgramCache]: Analyzing trace with hash -1133854759, now seen corresponding path program 1 times [2020-07-19 21:36:55,789 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:36:55,790 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87544647] [2020-07-19 21:36:55,790 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@756288fb [2020-07-19 21:36:55,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:36:55,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:36:55,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:36:56,034 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:36:56,035 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87544647] [2020-07-19 21:36:56,035 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [53507722] [2020-07-19 21:36:56,035 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@756288fb 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 [2020-07-19 21:36:56,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:36:56,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-19 21:36:56,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:36:56,143 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:36:56,144 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-19 21:36:56,144 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2020-07-19 21:36:56,144 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528002416] [2020-07-19 21:36:56,145 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-19 21:36:56,145 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:36:56,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-19 21:36:56,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-07-19 21:36:56,146 INFO L87 Difference]: Start difference. First operand 1358 states and 1769 transitions. Second operand 3 states. [2020-07-19 21:36:56,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:36:56,685 INFO L93 Difference]: Finished difference Result 3144 states and 4111 transitions. [2020-07-19 21:36:56,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-19 21:36:56,687 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 121 [2020-07-19 21:36:56,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:36:56,694 INFO L225 Difference]: With dead ends: 3144 [2020-07-19 21:36:56,694 INFO L226 Difference]: Without dead ends: 1204 [2020-07-19 21:36:56,700 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-07-19 21:36:56,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1204 states. [2020-07-19 21:36:56,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1204 to 1204. [2020-07-19 21:36:56,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1204 states. [2020-07-19 21:36:56,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1204 states to 1204 states and 1506 transitions. [2020-07-19 21:36:56,738 INFO L78 Accepts]: Start accepts. Automaton has 1204 states and 1506 transitions. Word has length 121 [2020-07-19 21:36:56,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:36:56,738 INFO L479 AbstractCegarLoop]: Abstraction has 1204 states and 1506 transitions. [2020-07-19 21:36:56,738 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-19 21:36:56,739 INFO L276 IsEmpty]: Start isEmpty. Operand 1204 states and 1506 transitions. [2020-07-19 21:36:56,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-07-19 21:36:56,742 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:36:56,743 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2020-07-19 21:36:56,957 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:36:56,958 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:36:56,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:36:56,959 INFO L82 PathProgramCache]: Analyzing trace with hash -1603396301, now seen corresponding path program 1 times [2020-07-19 21:36:56,960 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:36:56,961 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921280406] [2020-07-19 21:36:56,961 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@756288fb [2020-07-19 21:36:56,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:36:57,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:36:57,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:36:57,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:36:57,129 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 27 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-19 21:36:57,130 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921280406] [2020-07-19 21:36:57,131 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1401566968] [2020-07-19 21:36:57,131 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@756288fb 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 [2020-07-19 21:36:57,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:36:57,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-19 21:36:57,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:36:57,385 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-07-19 21:36:57,386 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-19 21:36:57,386 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2020-07-19 21:36:57,387 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275164389] [2020-07-19 21:36:57,388 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-19 21:36:57,389 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:36:57,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-19 21:36:57,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-07-19 21:36:57,390 INFO L87 Difference]: Start difference. First operand 1204 states and 1506 transitions. Second operand 5 states. [2020-07-19 21:36:58,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:36:58,374 INFO L93 Difference]: Finished difference Result 3492 states and 4559 transitions. [2020-07-19 21:36:58,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-19 21:36:58,375 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 124 [2020-07-19 21:36:58,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:36:58,388 INFO L225 Difference]: With dead ends: 3492 [2020-07-19 21:36:58,388 INFO L226 Difference]: Without dead ends: 2294 [2020-07-19 21:36:58,392 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-07-19 21:36:58,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2294 states. [2020-07-19 21:36:58,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2294 to 2261. [2020-07-19 21:36:58,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2261 states. [2020-07-19 21:36:58,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2261 states to 2261 states and 2865 transitions. [2020-07-19 21:36:58,462 INFO L78 Accepts]: Start accepts. Automaton has 2261 states and 2865 transitions. Word has length 124 [2020-07-19 21:36:58,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:36:58,463 INFO L479 AbstractCegarLoop]: Abstraction has 2261 states and 2865 transitions. [2020-07-19 21:36:58,463 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-19 21:36:58,463 INFO L276 IsEmpty]: Start isEmpty. Operand 2261 states and 2865 transitions. [2020-07-19 21:36:58,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-07-19 21:36:58,469 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:36:58,470 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:36:58,683 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:36:58,684 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:36:58,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:36:58,685 INFO L82 PathProgramCache]: Analyzing trace with hash -5916666, now seen corresponding path program 1 times [2020-07-19 21:36:58,685 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:36:58,686 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288764233] [2020-07-19 21:36:58,686 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@756288fb [2020-07-19 21:36:58,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:36:58,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:36:58,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:36:58,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:36:58,927 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 58 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-19 21:36:58,927 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288764233] [2020-07-19 21:36:58,927 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [188879833] [2020-07-19 21:36:58,928 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@756288fb 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 [2020-07-19 21:36:59,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:36:59,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-19 21:36:59,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:36:59,087 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-07-19 21:36:59,087 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-19 21:36:59,087 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2020-07-19 21:36:59,088 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515988215] [2020-07-19 21:36:59,088 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-19 21:36:59,088 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:36:59,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-19 21:36:59,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-19 21:36:59,094 INFO L87 Difference]: Start difference. First operand 2261 states and 2865 transitions. Second operand 3 states. [2020-07-19 21:36:59,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:36:59,570 INFO L93 Difference]: Finished difference Result 4518 states and 5734 transitions. [2020-07-19 21:36:59,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-19 21:36:59,572 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 146 [2020-07-19 21:36:59,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:36:59,585 INFO L225 Difference]: With dead ends: 4518 [2020-07-19 21:36:59,585 INFO L226 Difference]: Without dead ends: 2263 [2020-07-19 21:36:59,591 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-19 21:36:59,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2263 states. [2020-07-19 21:36:59,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2263 to 2261. [2020-07-19 21:36:59,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2261 states. [2020-07-19 21:36:59,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2261 states to 2261 states and 2835 transitions. [2020-07-19 21:36:59,660 INFO L78 Accepts]: Start accepts. Automaton has 2261 states and 2835 transitions. Word has length 146 [2020-07-19 21:36:59,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:36:59,661 INFO L479 AbstractCegarLoop]: Abstraction has 2261 states and 2835 transitions. [2020-07-19 21:36:59,661 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-19 21:36:59,661 INFO L276 IsEmpty]: Start isEmpty. Operand 2261 states and 2835 transitions. [2020-07-19 21:36:59,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-07-19 21:36:59,668 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:36:59,668 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-07-19 21:36:59,882 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-07-19 21:36:59,883 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:36:59,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:36:59,884 INFO L82 PathProgramCache]: Analyzing trace with hash -1143201553, now seen corresponding path program 1 times [2020-07-19 21:36:59,884 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:36:59,885 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678708840] [2020-07-19 21:36:59,885 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@756288fb [2020-07-19 21:36:59,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:36:59,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:36:59,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:36:59,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:37:00,041 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 69 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-19 21:37:00,042 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678708840] [2020-07-19 21:37:00,042 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1825145472] [2020-07-19 21:37:00,042 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@756288fb No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:37:00,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:37:00,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-19 21:37:00,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:37:00,258 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 70 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:37:00,258 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:37:00,259 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 7 [2020-07-19 21:37:00,259 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115946071] [2020-07-19 21:37:00,260 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-19 21:37:00,260 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:37:00,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-19 21:37:00,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-07-19 21:37:00,262 INFO L87 Difference]: Start difference. First operand 2261 states and 2835 transitions. Second operand 7 states. [2020-07-19 21:37:01,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:37:01,471 INFO L93 Difference]: Finished difference Result 5873 states and 7654 transitions. [2020-07-19 21:37:01,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-19 21:37:01,472 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 162 [2020-07-19 21:37:01,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:37:01,493 INFO L225 Difference]: With dead ends: 5873 [2020-07-19 21:37:01,493 INFO L226 Difference]: Without dead ends: 3618 [2020-07-19 21:37:01,501 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-07-19 21:37:01,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3618 states. [2020-07-19 21:37:01,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3618 to 3290. [2020-07-19 21:37:01,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3290 states. [2020-07-19 21:37:01,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3290 states to 3290 states and 3973 transitions. [2020-07-19 21:37:01,603 INFO L78 Accepts]: Start accepts. Automaton has 3290 states and 3973 transitions. Word has length 162 [2020-07-19 21:37:01,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:37:01,604 INFO L479 AbstractCegarLoop]: Abstraction has 3290 states and 3973 transitions. [2020-07-19 21:37:01,604 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-19 21:37:01,604 INFO L276 IsEmpty]: Start isEmpty. Operand 3290 states and 3973 transitions. [2020-07-19 21:37:01,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-07-19 21:37:01,612 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:37:01,613 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-07-19 21:37:01,825 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:37:01,826 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:37:01,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:37:01,826 INFO L82 PathProgramCache]: Analyzing trace with hash -955310860, now seen corresponding path program 1 times [2020-07-19 21:37:01,827 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:37:01,827 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892459285] [2020-07-19 21:37:01,827 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@756288fb [2020-07-19 21:37:01,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:37:01,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:37:01,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:37:01,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:37:02,092 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 86 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-19 21:37:02,093 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892459285] [2020-07-19 21:37:02,093 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [348994121] [2020-07-19 21:37:02,094 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@756288fb No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:37:02,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:37:02,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-19 21:37:02,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:37:02,228 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 87 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:37:02,228 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:37:02,228 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 10 [2020-07-19 21:37:02,229 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927404503] [2020-07-19 21:37:02,230 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-19 21:37:02,230 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:37:02,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-19 21:37:02,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-07-19 21:37:02,230 INFO L87 Difference]: Start difference. First operand 3290 states and 3973 transitions. Second operand 10 states. [2020-07-19 21:37:04,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:37:04,511 INFO L93 Difference]: Finished difference Result 6315 states and 7683 transitions. [2020-07-19 21:37:04,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-07-19 21:37:04,512 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 181 [2020-07-19 21:37:04,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:37:04,526 INFO L225 Difference]: With dead ends: 6315 [2020-07-19 21:37:04,526 INFO L226 Difference]: Without dead ends: 3175 [2020-07-19 21:37:04,535 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=148, Invalid=452, Unknown=0, NotChecked=0, Total=600 [2020-07-19 21:37:04,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3175 states. [2020-07-19 21:37:04,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3175 to 2860. [2020-07-19 21:37:04,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2860 states. [2020-07-19 21:37:04,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2860 states to 2860 states and 3276 transitions. [2020-07-19 21:37:04,606 INFO L78 Accepts]: Start accepts. Automaton has 2860 states and 3276 transitions. Word has length 181 [2020-07-19 21:37:04,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:37:04,606 INFO L479 AbstractCegarLoop]: Abstraction has 2860 states and 3276 transitions. [2020-07-19 21:37:04,606 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-19 21:37:04,607 INFO L276 IsEmpty]: Start isEmpty. Operand 2860 states and 3276 transitions. [2020-07-19 21:37:04,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-07-19 21:37:04,615 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:37:04,615 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, 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, 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] [2020-07-19 21:37:04,828 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:37:04,829 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:37:04,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:37:04,830 INFO L82 PathProgramCache]: Analyzing trace with hash 1874149379, now seen corresponding path program 1 times [2020-07-19 21:37:04,830 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:37:04,830 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961175323] [2020-07-19 21:37:04,831 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@756288fb [2020-07-19 21:37:04,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:37:04,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:37:04,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:37:05,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:37:05,114 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 136 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-19 21:37:05,114 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961175323] [2020-07-19 21:37:05,115 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [183733154] [2020-07-19 21:37:05,115 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@756288fb No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:37:05,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:37:05,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-19 21:37:05,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:37:05,282 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-07-19 21:37:05,282 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:37:05,283 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 9 [2020-07-19 21:37:05,283 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185683] [2020-07-19 21:37:05,283 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-19 21:37:05,283 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:37:05,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-19 21:37:05,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-07-19 21:37:05,284 INFO L87 Difference]: Start difference. First operand 2860 states and 3276 transitions. Second operand 9 states. [2020-07-19 21:37:08,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:37:08,584 INFO L93 Difference]: Finished difference Result 8728 states and 9922 transitions. [2020-07-19 21:37:08,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-07-19 21:37:08,587 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 206 [2020-07-19 21:37:08,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:37:08,605 INFO L225 Difference]: With dead ends: 8728 [2020-07-19 21:37:08,606 INFO L226 Difference]: Without dead ends: 5559 [2020-07-19 21:37:08,614 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=175, Invalid=581, Unknown=0, NotChecked=0, Total=756 [2020-07-19 21:37:08,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5559 states. [2020-07-19 21:37:08,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5559 to 5543. [2020-07-19 21:37:08,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5543 states. [2020-07-19 21:37:08,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5543 states to 5543 states and 6084 transitions. [2020-07-19 21:37:08,729 INFO L78 Accepts]: Start accepts. Automaton has 5543 states and 6084 transitions. Word has length 206 [2020-07-19 21:37:08,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:37:08,729 INFO L479 AbstractCegarLoop]: Abstraction has 5543 states and 6084 transitions. [2020-07-19 21:37:08,729 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-19 21:37:08,729 INFO L276 IsEmpty]: Start isEmpty. Operand 5543 states and 6084 transitions. [2020-07-19 21:37:08,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-07-19 21:37:08,745 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:37:08,746 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:37:08,960 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-07-19 21:37:08,961 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:37:08,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:37:08,962 INFO L82 PathProgramCache]: Analyzing trace with hash -544683209, now seen corresponding path program 1 times [2020-07-19 21:37:08,962 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:37:08,963 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025630528] [2020-07-19 21:37:08,963 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@756288fb [2020-07-19 21:37:09,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:37:09,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:37:09,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:37:09,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:37:09,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:37:09,226 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 231 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-19 21:37:09,227 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025630528] [2020-07-19 21:37:09,227 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1630146098] [2020-07-19 21:37:09,227 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@756288fb No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:37:09,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:37:09,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 554 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-19 21:37:09,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:37:09,511 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2020-07-19 21:37:09,512 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-19 21:37:09,512 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2020-07-19 21:37:09,513 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505531210] [2020-07-19 21:37:09,513 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-19 21:37:09,514 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:37:09,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-19 21:37:09,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-19 21:37:09,515 INFO L87 Difference]: Start difference. First operand 5543 states and 6084 transitions. Second operand 3 states. [2020-07-19 21:37:10,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:37:10,018 INFO L93 Difference]: Finished difference Result 9881 states and 10832 transitions. [2020-07-19 21:37:10,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-19 21:37:10,019 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 254 [2020-07-19 21:37:10,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:37:10,020 INFO L225 Difference]: With dead ends: 9881 [2020-07-19 21:37:10,020 INFO L226 Difference]: Without dead ends: 0 [2020-07-19 21:37:10,035 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-19 21:37:10,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-19 21:37:10,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-19 21:37:10,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-19 21:37:10,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-19 21:37:10,036 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 254 [2020-07-19 21:37:10,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:37:10,036 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-19 21:37:10,036 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-19 21:37:10,036 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-19 21:37:10,037 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-19 21:37:10,249 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:37:10,253 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-19 21:37:10,910 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 200 [2020-07-19 21:37:11,132 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 200 [2020-07-19 21:37:12,777 WARN L193 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 210 DAG size of output: 78 [2020-07-19 21:37:13,924 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 200 DAG size of output: 72 [2020-07-19 21:37:15,042 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 200 DAG size of output: 72 [2020-07-19 21:37:15,047 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-19 21:37:15,048 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a11~0 |old(~a11~0)|) (= ~z~0 |old(~z~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~v~0 |old(~v~0)|) (= ~a17~0 |old(~a17~0)|) (= ~y~0 |old(~y~0)|) (= ~f~0 |old(~f~0)|) (= ~a~0 |old(~a~0)|) (= ~x~0 |old(~x~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a28~0 |old(~a28~0)|) (= ~a25~0 |old(~a25~0)|) (= ~d~0 |old(~d~0)|)) [2020-07-19 21:37:15,048 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-19 21:37:15,048 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,048 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,049 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,049 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,049 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,049 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-19 21:37:15,049 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-19 21:37:15,049 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-19 21:37:15,050 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-19 21:37:15,050 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-19 21:37:15,050 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-19 21:37:15,050 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-19 21:37:15,050 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-19 21:37:15,050 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-19 21:37:15,051 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-19 21:37:15,051 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-19 21:37:15,051 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-19 21:37:15,051 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-19 21:37:15,051 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,051 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,051 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,051 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,051 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-19 21:37:15,052 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,052 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-19 21:37:15,052 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-19 21:37:15,052 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-19 21:37:15,052 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-19 21:37:15,052 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-19 21:37:15,052 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-19 21:37:15,052 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-19 21:37:15,052 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-19 21:37:15,052 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-19 21:37:15,052 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-19 21:37:15,053 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-19 21:37:15,053 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-19 21:37:15,053 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-19 21:37:15,053 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-19 21:37:15,053 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-19 21:37:15,053 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,053 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,053 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,053 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,054 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,054 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 439) no Hoare annotation was computed. [2020-07-19 21:37:15,054 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-19 21:37:15,054 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-19 21:37:15,054 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-19 21:37:15,054 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-19 21:37:15,054 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-19 21:37:15,055 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-19 21:37:15,055 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-19 21:37:15,055 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-19 21:37:15,055 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-19 21:37:15,055 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-19 21:37:15,055 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-19 21:37:15,055 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,055 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,055 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,056 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,056 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,056 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-19 21:37:15,056 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-19 21:37:15,056 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-19 21:37:15,056 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-19 21:37:15,056 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-19 21:37:15,056 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-19 21:37:15,057 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-19 21:37:15,057 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-19 21:37:15,057 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-19 21:37:15,057 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-19 21:37:15,057 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-19 21:37:15,057 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-19 21:37:15,057 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-19 21:37:15,057 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,058 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,058 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,058 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,058 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,058 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-19 21:37:15,058 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-19 21:37:15,058 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-19 21:37:15,058 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-19 21:37:15,059 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-19 21:37:15,059 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-19 21:37:15,059 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-19 21:37:15,059 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-19 21:37:15,059 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-19 21:37:15,059 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-19 21:37:15,059 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-19 21:37:15,059 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-19 21:37:15,060 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-19 21:37:15,060 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-19 21:37:15,060 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-19 21:37:15,060 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-19 21:37:15,060 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,060 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,060 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,060 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,061 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-19 21:37:15,061 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,061 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-19 21:37:15,061 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,061 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-19 21:37:15,061 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-19 21:37:15,061 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-19 21:37:15,061 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,062 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,062 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-19 21:37:15,062 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-19 21:37:15,062 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-19 21:37:15,062 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-19 21:37:15,062 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-19 21:37:15,062 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-19 21:37:15,062 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-19 21:37:15,062 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-19 21:37:15,063 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-19 21:37:15,063 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-19 21:37:15,063 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-19 21:37:15,063 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,063 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,063 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,063 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,063 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,063 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,064 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-19 21:37:15,064 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-19 21:37:15,064 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-19 21:37:15,064 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-19 21:37:15,064 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-19 21:37:15,064 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-19 21:37:15,064 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-19 21:37:15,064 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-19 21:37:15,065 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-19 21:37:15,065 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-19 21:37:15,065 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-19 21:37:15,065 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,065 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,065 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,065 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,065 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,066 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,066 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-19 21:37:15,066 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-19 21:37:15,066 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-19 21:37:15,066 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-19 21:37:15,066 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-19 21:37:15,066 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-19 21:37:15,066 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-19 21:37:15,067 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-19 21:37:15,067 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-19 21:37:15,067 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-19 21:37:15,067 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-19 21:37:15,067 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-19 21:37:15,067 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-19 21:37:15,067 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-19 21:37:15,067 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,067 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,068 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,068 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse24 (<= ~a17~0 8)) (.cse5 (= 1 ~a25~0)) (.cse1 (= ~a11~0 |old(~a11~0)|)) (.cse2 (= ~a17~0 |old(~a17~0)|)) (.cse4 (= ~a19~0 |old(~a19~0)|)) (.cse3 (= ~a28~0 |old(~a28~0)|)) (.cse16 (= ~a25~0 |old(~a25~0)|))) (let ((.cse11 (not (<= 10 |old(~a28~0)|))) (.cse8 (not (<= |old(~a11~0)| 0))) (.cse20 (and .cse1 .cse2 .cse4 .cse3 .cse16)) (.cse18 (and .cse1 .cse24 .cse2 .cse4 .cse3 .cse5)) (.cse0 (not (= 1 |old(~a19~0)|))) (.cse9 (not (<= 9 |old(~a28~0)|))) (.cse6 (not (= 1 |old(~a25~0)|))) (.cse12 (and .cse1 .cse2 .cse4 .cse3 .cse5)) (.cse7 (not (<= |old(~a17~0)| 8))) (.cse17 (not (<= |old(~a28~0)| 7))) (.cse23 (not (<= |old(~a17~0)| 7))) (.cse19 (and .cse1 .cse24 .cse2 .cse4 .cse3 .cse16)) (.cse13 (not (= 8 |old(~a17~0)|))) (.cse22 (and .cse1 .cse2 .cse3 .cse4 .cse16)) (.cse14 (not (<= |old(~a25~0)| 0))) (.cse15 (= 10 |old(~a28~0)|)) (.cse10 (not (<= |old(~a19~0)| 0))) (.cse21 (= |old(~a11~0)| |old(~a19~0)|))) (and (or .cse0 (and .cse1 .cse2 .cse3 .cse4 .cse5) .cse6 .cse7 .cse8) (or .cse9 .cse6 .cse10 .cse11 .cse12 .cse7 .cse8) (or .cse0 .cse13 .cse9 .cse14 .cse15 (and .cse1 .cse4 .cse3 (= 8 ~a17~0) .cse16)) (or .cse0 .cse17 .cse6 .cse18 .cse7) (or .cse14 .cse15 .cse10 .cse19 .cse7 (= 9 |old(~a28~0)|)) (or .cse0 .cse14 .cse20 .cse11 .cse21 .cse7) (or .cse0 .cse13 .cse17 .cse22 .cse14 .cse8) (or .cse9 .cse20 .cse23 .cse7) (or .cse17 .cse18 .cse6 .cse10 .cse7) (or .cse0 .cse9 .cse6 .cse12 .cse7) (or .cse17 .cse23 .cse19) (or .cse13 .cse22 .cse14 .cse15 .cse10 .cse21)))) [2020-07-19 21:37:15,068 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,068 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,068 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,069 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-19 21:37:15,069 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-19 21:37:15,069 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-19 21:37:15,069 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-19 21:37:15,069 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-19 21:37:15,069 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-19 21:37:15,069 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-19 21:37:15,069 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-19 21:37:15,069 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-19 21:37:15,070 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-19 21:37:15,070 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-19 21:37:15,070 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-19 21:37:15,070 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-19 21:37:15,070 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,070 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,070 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,070 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,071 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,071 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,071 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-19 21:37:15,071 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-19 21:37:15,071 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-19 21:37:15,071 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-19 21:37:15,071 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-19 21:37:15,071 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-19 21:37:15,071 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-19 21:37:15,072 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-19 21:37:15,072 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-19 21:37:15,072 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-19 21:37:15,072 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-19 21:37:15,072 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-19 21:37:15,072 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-19 21:37:15,072 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-19 21:37:15,072 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-19 21:37:15,072 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-19 21:37:15,073 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,073 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,073 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,073 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,073 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-19 21:37:15,073 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-19 21:37:15,073 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-19 21:37:15,073 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-19 21:37:15,074 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-19 21:37:15,074 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-19 21:37:15,074 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-19 21:37:15,074 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-19 21:37:15,074 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-19 21:37:15,074 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-19 21:37:15,074 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-19 21:37:15,074 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-19 21:37:15,074 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-19 21:37:15,074 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-19 21:37:15,075 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-19 21:37:15,075 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-19 21:37:15,075 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-19 21:37:15,075 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-19 21:37:15,075 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-19 21:37:15,075 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-19 21:37:15,075 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-19 21:37:15,075 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a11~0 0) (<= ~a25~0 0) (= 8 ~a17~0) (<= ~a28~0 7)) [2020-07-19 21:37:15,076 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-19 21:37:15,076 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-19 21:37:15,076 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a28~0)| 7)) (and (= ~a11~0 |old(~a11~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a25~0 |old(~a25~0)|)) (not (<= |old(~a25~0)| 0)) (not (<= |old(~a11~0)| 0))) [2020-07-19 21:37:15,076 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse7 (<= ~a17~0 7)) (.cse4 (<= ~a19~0 0)) (.cse2 (not (= ~a11~0 ~a19~0))) (.cse8 (<= ~a28~0 7)) (.cse12 (<= ~a11~0 |old(~a11~0)|)) (.cse5 (<= ~a17~0 |old(~a17~0)|)) (.cse6 (<= ~a17~0 8)) (.cse9 (= 1 ~a25~0)) (.cse11 (= 1 ~a19~0)) (.cse0 (not (= 10 ~a28~0))) (.cse1 (<= ~a25~0 0)) (.cse10 (<= 9 ~a28~0)) (.cse3 (= 8 ~a17~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (not (<= |old(~a28~0)| 7)) (and .cse5 .cse6 .cse7 .cse8) (and .cse5 .cse0 .cse6 .cse1 (not (= 9 ~a28~0)) .cse4) (and .cse5 .cse6 .cse4 .cse8 .cse9) (and .cse5 .cse6 .cse7 .cse10) (not (<= |old(~a11~0)| 0)) (and .cse11 .cse5 .cse6 .cse10 .cse9) (and .cse12 .cse5 .cse6 (<= 10 ~a28~0) .cse10 .cse4 .cse9) (not (= 8 |old(~a17~0)|)) (and .cse11 .cse6 .cse1 .cse2 .cse10) (not (<= |old(~a25~0)| 0)) (and .cse11 .cse5 .cse6 .cse8 .cse9) (and (= ~a11~0 |old(~a11~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a28~0 |old(~a28~0)|) (= ~a25~0 |old(~a25~0)|)) (and .cse12 .cse11 .cse5 .cse6 .cse9) (and .cse11 .cse0 .cse1 .cse10 .cse3))) [2020-07-19 21:37:15,076 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-19 21:37:15,077 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-19 21:37:15,077 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse7 (<= ~a17~0 7)) (.cse4 (<= ~a19~0 0)) (.cse2 (not (= ~a11~0 ~a19~0))) (.cse8 (<= ~a28~0 7)) (.cse12 (<= ~a11~0 |old(~a11~0)|)) (.cse5 (<= ~a17~0 |old(~a17~0)|)) (.cse6 (<= ~a17~0 8)) (.cse9 (= 1 ~a25~0)) (.cse11 (= 1 ~a19~0)) (.cse0 (not (= 10 ~a28~0))) (.cse1 (<= ~a25~0 0)) (.cse10 (<= 9 ~a28~0)) (.cse3 (= 8 ~a17~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (not (<= |old(~a28~0)| 7)) (and .cse5 .cse6 .cse7 .cse8) (and .cse5 .cse0 .cse6 .cse1 (not (= 9 ~a28~0)) .cse4) (and .cse5 .cse6 .cse4 .cse8 .cse9) (and .cse5 .cse6 .cse7 .cse10) (not (<= |old(~a11~0)| 0)) (and .cse11 .cse5 .cse6 .cse10 .cse9) (and .cse12 .cse5 .cse6 (<= 10 ~a28~0) .cse10 .cse4 .cse9) (not (= 8 |old(~a17~0)|)) (and .cse11 .cse6 .cse1 .cse2 .cse10) (not (<= |old(~a25~0)| 0)) (and .cse11 .cse5 .cse6 .cse8 .cse9) (and (= ~a11~0 |old(~a11~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a28~0 |old(~a28~0)|) (= ~a25~0 |old(~a25~0)|)) (and .cse12 .cse11 .cse5 .cse6 .cse9) (and .cse11 .cse0 .cse1 .cse10 .cse3))) [2020-07-19 21:37:15,077 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-19 21:37:15,077 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-19 21:37:15,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 09:37:15 BoogieIcfgContainer [2020-07-19 21:37:15,104 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-19 21:37:15,106 INFO L168 Benchmark]: Toolchain (without parser) took 29998.24 ms. Allocated memory was 137.9 MB in the beginning and 657.5 MB in the end (delta: 519.6 MB). Free memory was 101.5 MB in the beginning and 532.8 MB in the end (delta: -431.2 MB). Peak memory consumption was 491.5 MB. Max. memory is 7.1 GB. [2020-07-19 21:37:15,107 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-19 21:37:15,108 INFO L168 Benchmark]: CACSL2BoogieTranslator took 887.09 ms. Allocated memory was 137.9 MB in the beginning and 203.4 MB in the end (delta: 65.5 MB). Free memory was 101.1 MB in the beginning and 171.1 MB in the end (delta: -70.0 MB). Peak memory consumption was 34.8 MB. Max. memory is 7.1 GB. [2020-07-19 21:37:15,108 INFO L168 Benchmark]: Boogie Preprocessor took 130.80 ms. Allocated memory is still 203.4 MB. Free memory was 171.1 MB in the beginning and 166.1 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-19 21:37:15,109 INFO L168 Benchmark]: RCFGBuilder took 1346.16 ms. Allocated memory was 203.4 MB in the beginning and 235.9 MB in the end (delta: 32.5 MB). Free memory was 166.1 MB in the beginning and 181.5 MB in the end (delta: -15.4 MB). Peak memory consumption was 84.5 MB. Max. memory is 7.1 GB. [2020-07-19 21:37:15,110 INFO L168 Benchmark]: TraceAbstraction took 27623.92 ms. Allocated memory was 235.9 MB in the beginning and 657.5 MB in the end (delta: 421.5 MB). Free memory was 181.5 MB in the beginning and 532.8 MB in the end (delta: -351.3 MB). Peak memory consumption was 473.5 MB. Max. memory is 7.1 GB. [2020-07-19 21:37:15,113 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 887.09 ms. Allocated memory was 137.9 MB in the beginning and 203.4 MB in the end (delta: 65.5 MB). Free memory was 101.1 MB in the beginning and 171.1 MB in the end (delta: -70.0 MB). Peak memory consumption was 34.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 130.80 ms. Allocated memory is still 203.4 MB. Free memory was 171.1 MB in the beginning and 166.1 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1346.16 ms. Allocated memory was 203.4 MB in the beginning and 235.9 MB in the end (delta: 32.5 MB). Free memory was 166.1 MB in the beginning and 181.5 MB in the end (delta: -15.4 MB). Peak memory consumption was 84.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 27623.92 ms. Allocated memory was 235.9 MB in the beginning and 657.5 MB in the end (delta: 421.5 MB). Free memory was 181.5 MB in the beginning and 532.8 MB in the end (delta: -351.3 MB). Peak memory consumption was 473.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 439]: 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: 606]: Loop Invariant Derived loop invariant: (((((((((((((((!(1 == \old(a19)) || ((((!(10 == a28) && a25 <= 0) && !(a11 == a19)) && 8 == a17) && a19 <= 0)) || !(\old(a28) <= 7)) || (((a17 <= \old(a17) && a17 <= 8) && a17 <= 7) && a28 <= 7)) || (((((a17 <= \old(a17) && !(10 == a28)) && a17 <= 8) && a25 <= 0) && !(9 == a28)) && a19 <= 0)) || ((((a17 <= \old(a17) && a17 <= 8) && a19 <= 0) && a28 <= 7) && 1 == a25)) || (((a17 <= \old(a17) && a17 <= 8) && a17 <= 7) && 9 <= a28)) || !(\old(a11) <= 0)) || ((((1 == a19 && a17 <= \old(a17)) && a17 <= 8) && 9 <= a28) && 1 == a25)) || ((((((a11 <= \old(a11) && a17 <= \old(a17)) && a17 <= 8) && 10 <= a28) && 9 <= a28) && a19 <= 0) && 1 == a25)) || !(8 == \old(a17))) || ((((1 == a19 && a17 <= 8) && a25 <= 0) && !(a11 == a19)) && 9 <= a28)) || !(\old(a25) <= 0)) || ((((1 == a19 && a17 <= \old(a17)) && a17 <= 8) && a28 <= 7) && 1 == a25)) || ((((a11 == \old(a11) && a17 == \old(a17)) && a19 == \old(a19)) && a28 == \old(a28)) && a25 == \old(a25))) || ((((a11 <= \old(a11) && 1 == a19) && a17 <= \old(a17)) && a17 <= 8) && 1 == a25)) || ((((1 == a19 && !(10 == a28)) && a25 <= 0) && 9 <= a28) && 8 == a17) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 22.7s, OverallIterations: 11, TraceHistogramMax: 4, AutomataDifference: 15.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1160 SDtfs, 5859 SDslu, 534 SDs, 0 SdLazy, 8661 SolverSat, 1616 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1589 GetRequests, 1470 SyntacticMatches, 0 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 356 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5543occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 11 MinimizatonAttempts, 1188 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 178 PreInvPairs, 252 NumberOfFragments, 969 HoareAnnotationTreeSize, 178 FomulaSimplifications, 54753 FormulaSimplificationTreeSizeReduction, 0.8s HoareSimplificationTime, 7 FomulaSimplificationsInter, 18100 FormulaSimplificationTreeSizeReductionInter, 3.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 3030 NumberOfCodeBlocks, 3030 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 3010 ConstructedInterpolants, 0 QuantifiedInterpolants, 1255130 SizeOfPredicates, 15 NumberOfNonLiveVariables, 3625 ConjunctsInSsa, 49 ConjunctsInUnsatCore, 20 InterpolantComputations, 7 PerfectInterpolantSequences, 1262/1383 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...