/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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label24.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 16:54:01,306 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 16:54:01,309 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 16:54:01,343 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-08-22 16:54:01,391 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 [2020-08-22 16:54:01,413 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 16:54:01,413 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 16:54:01,414 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 16:54:01,414 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 16:54:01,415 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 16:54:01,415 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 16:54:01,415 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 16:54:01,415 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 16:54:01,415 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 16:54:01,416 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 16:54:01,419 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 16:54:01,419 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 16:54:01,419 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 16:54:01,419 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 16:54:01,420 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 16:54:01,420 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 16:54:01,420 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 16:54:01,420 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 16:54:01,421 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 16:54:01,421 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 16:54:01,421 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 16:54:01,421 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 16:54:01,421 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 16:54:01,422 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 16:54:01,422 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 16:54:01,422 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 16:54:01,422 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 16:54:01,422 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 16:54:01,422 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 16:54:01,423 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-08-22 16:54:01,754 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 16:54:01,771 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 16:54:01,775 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 16:54:01,776 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 16:54:01,776 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 16:54:01,777 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label24.c [2020-08-22 16:54:01,847 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2799ea137/b197a7ff685742f8b97c5e8ff6669cb8/FLAGd96853155 [2020-08-22 16:54:02,476 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 16:54:02,477 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label24.c [2020-08-22 16:54:02,488 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2799ea137/b197a7ff685742f8b97c5e8ff6669cb8/FLAGd96853155 [2020-08-22 16:54:02,745 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2799ea137/b197a7ff685742f8b97c5e8ff6669cb8 [2020-08-22 16:54:02,753 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 16:54:02,755 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 16:54:02,756 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 16:54:02,756 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 16:54:02,759 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 16:54:02,761 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:54:02" (1/1) ... [2020-08-22 16:54:02,763 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62c38a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:54:02, skipping insertion in model container [2020-08-22 16:54:02,764 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:54:02" (1/1) ... [2020-08-22 16:54:02,774 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 16:54:02,837 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 16:54:03,461 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 16:54:03,470 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 16:54:03,650 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 16:54:03,675 INFO L208 MainTranslator]: Completed translation [2020-08-22 16:54:03,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:54:03 WrapperNode [2020-08-22 16:54:03,676 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 16:54:03,677 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 16:54:03,677 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 16:54:03,677 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 16:54:03,690 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:54:03" (1/1) ... [2020-08-22 16:54:03,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:54:03" (1/1) ... [2020-08-22 16:54:03,709 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:54:03" (1/1) ... [2020-08-22 16:54:03,710 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:54:03" (1/1) ... [2020-08-22 16:54:03,753 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:54:03" (1/1) ... [2020-08-22 16:54:03,778 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:54:03" (1/1) ... [2020-08-22 16:54:03,786 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:54:03" (1/1) ... [2020-08-22 16:54:03,798 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 16:54:03,798 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 16:54:03,798 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 16:54:03,799 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 16:54:03,799 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:54:03" (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 [2020-08-22 16:54:03,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 16:54:03,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 16:54:03,884 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-08-22 16:54:03,884 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 16:54:03,884 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-08-22 16:54:03,885 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 16:54:03,885 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 16:54:03,885 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-22 16:54:03,885 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 16:54:03,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 16:54:03,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 16:54:05,601 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 16:54:05,602 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-22 16:54:05,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:54:05 BoogieIcfgContainer [2020-08-22 16:54:05,617 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 16:54:05,621 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 16:54:05,621 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 16:54:05,625 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 16:54:05,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 04:54:02" (1/3) ... [2020-08-22 16:54:05,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dddc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:54:05, skipping insertion in model container [2020-08-22 16:54:05,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:54:03" (2/3) ... [2020-08-22 16:54:05,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dddc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:54:05, skipping insertion in model container [2020-08-22 16:54:05,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:54:05" (3/3) ... [2020-08-22 16:54:05,632 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label24.c [2020-08-22 16:54:05,644 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-08-22 16:54:05,658 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 16:54:05,675 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 16:54:05,717 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 16:54:05,718 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 16:54:05,719 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-08-22 16:54:05,719 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 16:54:05,719 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 16:54:05,719 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 16:54:05,719 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 16:54:05,720 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 16:54:05,754 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-08-22 16:54:05,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-08-22 16:54:05,770 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:54:05,771 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] [2020-08-22 16:54:05,772 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:54:05,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:54:05,783 INFO L82 PathProgramCache]: Analyzing trace with hash 2116109586, now seen corresponding path program 1 times [2020-08-22 16:54:05,794 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:54:05,795 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559954271] [2020-08-22 16:54:05,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:54:06,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:06,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:54:06,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:06,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:54:06,312 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559954271] [2020-08-22 16:54:06,314 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 16:54:06,314 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 16:54:06,316 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206582343] [2020-08-22 16:54:06,323 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 16:54:06,324 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:54:06,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 16:54:06,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-22 16:54:06,344 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 5 states. [2020-08-22 16:54:09,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:54:09,132 INFO L93 Difference]: Finished difference Result 886 states and 1613 transitions. [2020-08-22 16:54:09,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 16:54:09,139 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2020-08-22 16:54:09,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:54:09,169 INFO L225 Difference]: With dead ends: 886 [2020-08-22 16:54:09,170 INFO L226 Difference]: Without dead ends: 564 [2020-08-22 16:54:09,184 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-22 16:54:09,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-08-22 16:54:09,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 558. [2020-08-22 16:54:09,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 558 states. [2020-08-22 16:54:09,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 906 transitions. [2020-08-22 16:54:09,289 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 906 transitions. Word has length 47 [2020-08-22 16:54:09,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:54:09,289 INFO L479 AbstractCegarLoop]: Abstraction has 558 states and 906 transitions. [2020-08-22 16:54:09,289 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 16:54:09,290 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 906 transitions. [2020-08-22 16:54:09,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-08-22 16:54:09,296 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:54:09,296 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-08-22 16:54:09,297 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 16:54:09,297 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:54:09,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:54:09,298 INFO L82 PathProgramCache]: Analyzing trace with hash -1939521290, now seen corresponding path program 1 times [2020-08-22 16:54:09,298 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:54:09,298 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052179193] [2020-08-22 16:54:09,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:54:09,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:09,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:54:09,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:09,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 16:54:09,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:09,645 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:54:09,645 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052179193] [2020-08-22 16:54:09,646 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 16:54:09,646 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 16:54:09,646 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194906675] [2020-08-22 16:54:09,649 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 16:54:09,649 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:54:09,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 16:54:09,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-22 16:54:09,651 INFO L87 Difference]: Start difference. First operand 558 states and 906 transitions. Second operand 8 states. [2020-08-22 16:54:11,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:54:11,631 INFO L93 Difference]: Finished difference Result 1320 states and 2174 transitions. [2020-08-22 16:54:11,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-22 16:54:11,632 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 121 [2020-08-22 16:54:11,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:54:11,640 INFO L225 Difference]: With dead ends: 1320 [2020-08-22 16:54:11,640 INFO L226 Difference]: Without dead ends: 768 [2020-08-22 16:54:11,642 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-08-22 16:54:11,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2020-08-22 16:54:11,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 566. [2020-08-22 16:54:11,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 566 states. [2020-08-22 16:54:11,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 819 transitions. [2020-08-22 16:54:11,682 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 819 transitions. Word has length 121 [2020-08-22 16:54:11,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:54:11,683 INFO L479 AbstractCegarLoop]: Abstraction has 566 states and 819 transitions. [2020-08-22 16:54:11,683 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 16:54:11,684 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 819 transitions. [2020-08-22 16:54:11,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-08-22 16:54:11,687 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:54:11,687 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-08-22 16:54:11,687 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 16:54:11,687 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:54:11,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:54:11,688 INFO L82 PathProgramCache]: Analyzing trace with hash -2114473467, now seen corresponding path program 1 times [2020-08-22 16:54:11,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:54:11,688 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301779791] [2020-08-22 16:54:11,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:54:11,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:11,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:54:11,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:11,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 16:54:11,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:11,995 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:54:11,995 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301779791] [2020-08-22 16:54:11,995 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 16:54:11,995 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 16:54:11,996 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006007348] [2020-08-22 16:54:11,996 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 16:54:11,996 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:54:11,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 16:54:11,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-22 16:54:11,997 INFO L87 Difference]: Start difference. First operand 566 states and 819 transitions. Second operand 8 states. [2020-08-22 16:54:13,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:54:13,977 INFO L93 Difference]: Finished difference Result 1330 states and 1917 transitions. [2020-08-22 16:54:13,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-22 16:54:13,978 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 130 [2020-08-22 16:54:13,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:54:13,992 INFO L225 Difference]: With dead ends: 1330 [2020-08-22 16:54:13,992 INFO L226 Difference]: Without dead ends: 770 [2020-08-22 16:54:13,995 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-08-22 16:54:13,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2020-08-22 16:54:14,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 754. [2020-08-22 16:54:14,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 754 states. [2020-08-22 16:54:14,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 1023 transitions. [2020-08-22 16:54:14,060 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 1023 transitions. Word has length 130 [2020-08-22 16:54:14,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:54:14,063 INFO L479 AbstractCegarLoop]: Abstraction has 754 states and 1023 transitions. [2020-08-22 16:54:14,064 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 16:54:14,064 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 1023 transitions. [2020-08-22 16:54:14,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-08-22 16:54:14,085 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:54:14,085 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:54:14,086 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 16:54:14,087 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:54:14,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:54:14,087 INFO L82 PathProgramCache]: Analyzing trace with hash -1539058259, now seen corresponding path program 1 times [2020-08-22 16:54:14,088 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:54:14,088 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917438510] [2020-08-22 16:54:14,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:54:14,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:14,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:54:14,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:14,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 16:54:14,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:14,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-22 16:54:14,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:14,452 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 81 proven. 2 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-08-22 16:54:14,453 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917438510] [2020-08-22 16:54:14,454 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1516425717] [2020-08-22 16:54:14,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:54:14,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:14,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 4 conjunts are in the unsatisfiable core [2020-08-22 16:54:14,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-08-22 16:54:14,770 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-08-22 16:54:14,771 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-08-22 16:54:14,771 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2020-08-22 16:54:14,772 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636251103] [2020-08-22 16:54:14,773 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 16:54:14,773 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:54:14,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 16:54:14,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-22 16:54:14,774 INFO L87 Difference]: Start difference. First operand 754 states and 1023 transitions. Second operand 3 states. [2020-08-22 16:54:15,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:54:15,854 INFO L93 Difference]: Finished difference Result 2236 states and 3079 transitions. [2020-08-22 16:54:15,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 16:54:15,855 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 214 [2020-08-22 16:54:15,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:54:15,864 INFO L225 Difference]: With dead ends: 2236 [2020-08-22 16:54:15,864 INFO L226 Difference]: Without dead ends: 1488 [2020-08-22 16:54:15,867 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 219 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-22 16:54:15,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1488 states. [2020-08-22 16:54:15,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1488 to 1304. [2020-08-22 16:54:15,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1304 states. [2020-08-22 16:54:15,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1304 states to 1304 states and 1677 transitions. [2020-08-22 16:54:15,931 INFO L78 Accepts]: Start accepts. Automaton has 1304 states and 1677 transitions. Word has length 214 [2020-08-22 16:54:15,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:54:15,932 INFO L479 AbstractCegarLoop]: Abstraction has 1304 states and 1677 transitions. [2020-08-22 16:54:15,932 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 16:54:15,933 INFO L276 IsEmpty]: Start isEmpty. Operand 1304 states and 1677 transitions. [2020-08-22 16:54:15,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2020-08-22 16:54:15,940 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:54:15,940 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-08-22 16:54:16,154 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:54:16,155 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:54:16,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:54:16,156 INFO L82 PathProgramCache]: Analyzing trace with hash -266552290, now seen corresponding path program 1 times [2020-08-22 16:54:16,156 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:54:16,157 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169165915] [2020-08-22 16:54:16,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:54:16,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:16,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:54:16,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:16,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 16:54:16,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:16,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-22 16:54:16,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:16,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-08-22 16:54:16,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:17,025 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 154 proven. 191 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-08-22 16:54:17,025 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169165915] [2020-08-22 16:54:17,050 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [586100653] [2020-08-22 16:54:17,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:54:17,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:17,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 15 conjunts are in the unsatisfiable core [2020-08-22 16:54:17,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-08-22 16:54:17,455 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 4, 4, 1] term [2020-08-22 16:54:17,456 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-08-22 16:54:17,458 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-08-22 16:54:17,462 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-08-22 16:54:17,768 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 309 proven. 2 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-08-22 16:54:17,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-08-22 16:54:17,768 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2020-08-22 16:54:17,769 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904204753] [2020-08-22 16:54:17,770 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-08-22 16:54:17,770 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:54:17,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-08-22 16:54:17,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2020-08-22 16:54:17,777 INFO L87 Difference]: Start difference. First operand 1304 states and 1677 transitions. Second operand 15 states. [2020-08-22 16:54:22,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:54:22,368 INFO L93 Difference]: Finished difference Result 3314 states and 4315 transitions. [2020-08-22 16:54:22,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-08-22 16:54:22,369 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 317 [2020-08-22 16:54:22,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:54:22,381 INFO L225 Difference]: With dead ends: 3314 [2020-08-22 16:54:22,381 INFO L226 Difference]: Without dead ends: 1969 [2020-08-22 16:54:22,386 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 338 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 396 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=334, Invalid=1226, Unknown=0, NotChecked=0, Total=1560 [2020-08-22 16:54:22,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1969 states. [2020-08-22 16:54:22,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1878. [2020-08-22 16:54:22,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1878 states. [2020-08-22 16:54:22,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1878 states to 1878 states and 2155 transitions. [2020-08-22 16:54:22,450 INFO L78 Accepts]: Start accepts. Automaton has 1878 states and 2155 transitions. Word has length 317 [2020-08-22 16:54:22,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:54:22,454 INFO L479 AbstractCegarLoop]: Abstraction has 1878 states and 2155 transitions. [2020-08-22 16:54:22,455 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-08-22 16:54:22,455 INFO L276 IsEmpty]: Start isEmpty. Operand 1878 states and 2155 transitions. [2020-08-22 16:54:22,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2020-08-22 16:54:22,462 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:54:22,463 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-08-22 16:54:22,676 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:54:22,677 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:54:22,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:54:22,679 INFO L82 PathProgramCache]: Analyzing trace with hash -1074149043, now seen corresponding path program 1 times [2020-08-22 16:54:22,679 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:54:22,680 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876628489] [2020-08-22 16:54:22,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:54:22,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:22,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:54:22,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:22,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 16:54:22,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:22,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-08-22 16:54:22,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:23,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-08-22 16:54:23,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:23,419 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 267 proven. 2 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2020-08-22 16:54:23,419 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876628489] [2020-08-22 16:54:23,420 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [575967481] [2020-08-22 16:54:23,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2020-08-22 16:54:23,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:23,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 562 conjuncts, 6 conjunts are in the unsatisfiable core [2020-08-22 16:54:23,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-08-22 16:54:23,625 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 1] term [2020-08-22 16:54:23,626 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-08-22 16:54:23,790 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 221 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2020-08-22 16:54:23,791 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-08-22 16:54:23,791 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2020-08-22 16:54:23,791 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803222732] [2020-08-22 16:54:23,792 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 16:54:23,792 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:54:23,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 16:54:23,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-08-22 16:54:23,793 INFO L87 Difference]: Start difference. First operand 1878 states and 2155 transitions. Second operand 5 states. [2020-08-22 16:54:24,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:54:24,992 INFO L93 Difference]: Finished difference Result 4522 states and 5333 transitions. [2020-08-22 16:54:24,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-22 16:54:24,996 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 342 [2020-08-22 16:54:24,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:54:25,008 INFO L225 Difference]: With dead ends: 4522 [2020-08-22 16:54:25,008 INFO L226 Difference]: Without dead ends: 2650 [2020-08-22 16:54:25,013 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 345 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2020-08-22 16:54:25,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2650 states. [2020-08-22 16:54:25,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2650 to 2648. [2020-08-22 16:54:25,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2648 states. [2020-08-22 16:54:25,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2648 states to 2648 states and 3100 transitions. [2020-08-22 16:54:25,081 INFO L78 Accepts]: Start accepts. Automaton has 2648 states and 3100 transitions. Word has length 342 [2020-08-22 16:54:25,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:54:25,081 INFO L479 AbstractCegarLoop]: Abstraction has 2648 states and 3100 transitions. [2020-08-22 16:54:25,081 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 16:54:25,082 INFO L276 IsEmpty]: Start isEmpty. Operand 2648 states and 3100 transitions. [2020-08-22 16:54:25,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 453 [2020-08-22 16:54:25,093 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:54:25,093 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:54:25,307 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:54:25,308 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:54:25,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:54:25,309 INFO L82 PathProgramCache]: Analyzing trace with hash 1203933665, now seen corresponding path program 1 times [2020-08-22 16:54:25,309 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:54:25,310 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853874303] [2020-08-22 16:54:25,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:54:25,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:25,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:54:25,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:25,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 16:54:25,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:25,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-22 16:54:25,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:25,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-22 16:54:25,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:25,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2020-08-22 16:54:25,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:26,279 INFO L134 CoverageAnalysis]: Checked inductivity of 710 backedges. 481 proven. 152 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-08-22 16:54:26,280 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853874303] [2020-08-22 16:54:26,280 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [541676983] [2020-08-22 16:54:26,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:54:26,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:26,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 709 conjuncts, 7 conjunts are in the unsatisfiable core [2020-08-22 16:54:26,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-08-22 16:54:26,817 INFO L134 CoverageAnalysis]: Checked inductivity of 710 backedges. 561 proven. 2 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2020-08-22 16:54:26,818 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-08-22 16:54:26,818 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5] total 15 [2020-08-22 16:54:26,818 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946062745] [2020-08-22 16:54:26,820 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-08-22 16:54:26,820 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:54:26,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-08-22 16:54:26,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2020-08-22 16:54:26,821 INFO L87 Difference]: Start difference. First operand 2648 states and 3100 transitions. Second operand 15 states. [2020-08-22 16:54:35,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:54:35,800 INFO L93 Difference]: Finished difference Result 6768 states and 8081 transitions. [2020-08-22 16:54:35,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2020-08-22 16:54:35,801 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 452 [2020-08-22 16:54:35,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:54:35,850 INFO L225 Difference]: With dead ends: 6768 [2020-08-22 16:54:35,850 INFO L226 Difference]: Without dead ends: 4308 [2020-08-22 16:54:35,858 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 554 GetRequests, 494 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1128 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=581, Invalid=3201, Unknown=0, NotChecked=0, Total=3782 [2020-08-22 16:54:35,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4308 states. [2020-08-22 16:54:35,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4308 to 2832. [2020-08-22 16:54:35,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2832 states. [2020-08-22 16:54:35,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2832 states to 2832 states and 3282 transitions. [2020-08-22 16:54:35,949 INFO L78 Accepts]: Start accepts. Automaton has 2832 states and 3282 transitions. Word has length 452 [2020-08-22 16:54:35,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:54:35,950 INFO L479 AbstractCegarLoop]: Abstraction has 2832 states and 3282 transitions. [2020-08-22 16:54:35,950 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-08-22 16:54:35,950 INFO L276 IsEmpty]: Start isEmpty. Operand 2832 states and 3282 transitions. [2020-08-22 16:54:35,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 537 [2020-08-22 16:54:35,957 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:54:35,958 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:54:36,171 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:54:36,171 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:54:36,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:54:36,173 INFO L82 PathProgramCache]: Analyzing trace with hash -1066963527, now seen corresponding path program 1 times [2020-08-22 16:54:36,173 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:54:36,173 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600395347] [2020-08-22 16:54:36,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:54:36,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:36,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:54:36,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:36,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 16:54:36,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:36,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-22 16:54:36,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:36,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-22 16:54:36,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:36,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2020-08-22 16:54:36,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:36,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2020-08-22 16:54:36,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:37,394 INFO L134 CoverageAnalysis]: Checked inductivity of 1076 backedges. 518 proven. 81 refuted. 0 times theorem prover too weak. 477 trivial. 0 not checked. [2020-08-22 16:54:37,394 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600395347] [2020-08-22 16:54:37,395 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2056174528] [2020-08-22 16:54:37,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2020-08-22 16:54:37,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:37,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 832 conjuncts, 11 conjunts are in the unsatisfiable core [2020-08-22 16:54:37,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-08-22 16:54:37,674 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 4, 4, 1] term [2020-08-22 16:54:37,674 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-08-22 16:54:37,678 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-08-22 16:54:37,685 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-08-22 16:54:38,341 INFO L134 CoverageAnalysis]: Checked inductivity of 1076 backedges. 762 proven. 2 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2020-08-22 16:54:38,342 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-08-22 16:54:38,342 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 11 [2020-08-22 16:54:38,342 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063823554] [2020-08-22 16:54:38,344 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-22 16:54:38,344 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:54:38,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-22 16:54:38,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-08-22 16:54:38,345 INFO L87 Difference]: Start difference. First operand 2832 states and 3282 transitions. Second operand 11 states. [2020-08-22 16:54:41,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:54:41,686 INFO L93 Difference]: Finished difference Result 6136 states and 7192 transitions. [2020-08-22 16:54:41,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-08-22 16:54:41,687 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 536 [2020-08-22 16:54:41,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:54:41,699 INFO L225 Difference]: With dead ends: 6136 [2020-08-22 16:54:41,700 INFO L226 Difference]: Without dead ends: 3453 [2020-08-22 16:54:41,706 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 588 GetRequests, 560 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=199, Invalid=613, Unknown=0, NotChecked=0, Total=812 [2020-08-22 16:54:41,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3453 states. [2020-08-22 16:54:41,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3453 to 3380. [2020-08-22 16:54:41,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3380 states. [2020-08-22 16:54:41,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3380 states to 3380 states and 3729 transitions. [2020-08-22 16:54:41,775 INFO L78 Accepts]: Start accepts. Automaton has 3380 states and 3729 transitions. Word has length 536 [2020-08-22 16:54:41,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:54:41,776 INFO L479 AbstractCegarLoop]: Abstraction has 3380 states and 3729 transitions. [2020-08-22 16:54:41,776 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-22 16:54:41,776 INFO L276 IsEmpty]: Start isEmpty. Operand 3380 states and 3729 transitions. [2020-08-22 16:54:41,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 637 [2020-08-22 16:54:41,785 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:54:41,785 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2020-08-22 16:54:42,000 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:54:42,000 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:54:42,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:54:42,001 INFO L82 PathProgramCache]: Analyzing trace with hash 629641869, now seen corresponding path program 1 times [2020-08-22 16:54:42,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:54:42,002 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124307431] [2020-08-22 16:54:42,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:54:42,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:42,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:54:42,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:42,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 16:54:42,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:42,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-22 16:54:42,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:42,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-22 16:54:42,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:42,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-08-22 16:54:42,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:42,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 523 [2020-08-22 16:54:42,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:43,048 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 549 proven. 73 refuted. 0 times theorem prover too weak. 538 trivial. 0 not checked. [2020-08-22 16:54:43,049 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124307431] [2020-08-22 16:54:43,049 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [288927256] [2020-08-22 16:54:43,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2020-08-22 16:54:43,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:43,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 933 conjuncts, 4 conjunts are in the unsatisfiable core [2020-08-22 16:54:43,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-08-22 16:54:43,524 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 795 proven. 2 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2020-08-22 16:54:43,525 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-08-22 16:54:43,525 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 8 [2020-08-22 16:54:43,525 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290003163] [2020-08-22 16:54:43,526 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 16:54:43,527 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:54:43,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 16:54:43,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-08-22 16:54:43,527 INFO L87 Difference]: Start difference. First operand 3380 states and 3729 transitions. Second operand 8 states. [2020-08-22 16:54:45,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:54:45,058 INFO L93 Difference]: Finished difference Result 7682 states and 8614 transitions. [2020-08-22 16:54:45,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-22 16:54:45,063 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 636 [2020-08-22 16:54:45,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:54:45,081 INFO L225 Difference]: With dead ends: 7682 [2020-08-22 16:54:45,082 INFO L226 Difference]: Without dead ends: 4490 [2020-08-22 16:54:45,089 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 666 GetRequests, 653 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-08-22 16:54:45,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4490 states. [2020-08-22 16:54:45,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4490 to 4478. [2020-08-22 16:54:45,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4478 states. [2020-08-22 16:54:45,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4478 states to 4478 states and 4969 transitions. [2020-08-22 16:54:45,190 INFO L78 Accepts]: Start accepts. Automaton has 4478 states and 4969 transitions. Word has length 636 [2020-08-22 16:54:45,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:54:45,191 INFO L479 AbstractCegarLoop]: Abstraction has 4478 states and 4969 transitions. [2020-08-22 16:54:45,191 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 16:54:45,191 INFO L276 IsEmpty]: Start isEmpty. Operand 4478 states and 4969 transitions. [2020-08-22 16:54:45,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 643 [2020-08-22 16:54:45,206 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:54:45,207 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:54:45,421 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:54:45,422 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:54:45,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:54:45,422 INFO L82 PathProgramCache]: Analyzing trace with hash 813075049, now seen corresponding path program 1 times [2020-08-22 16:54:45,423 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:54:45,423 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809539634] [2020-08-22 16:54:45,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:54:45,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:45,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:54:45,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:45,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 16:54:45,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:45,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-22 16:54:45,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:45,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-22 16:54:45,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:45,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-08-22 16:54:45,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:45,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2020-08-22 16:54:45,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:46,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 529 [2020-08-22 16:54:46,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:46,646 INFO L134 CoverageAnalysis]: Checked inductivity of 1560 backedges. 892 proven. 343 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2020-08-22 16:54:46,646 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809539634] [2020-08-22 16:54:46,647 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [317202326] [2020-08-22 16:54:46,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2020-08-22 16:54:46,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:46,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 973 conjuncts, 7 conjunts are in the unsatisfiable core [2020-08-22 16:54:46,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-08-22 16:54:47,098 INFO L134 CoverageAnalysis]: Checked inductivity of 1560 backedges. 1080 proven. 2 refuted. 0 times theorem prover too weak. 478 trivial. 0 not checked. [2020-08-22 16:54:47,099 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-08-22 16:54:47,099 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5] total 14 [2020-08-22 16:54:47,099 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82955423] [2020-08-22 16:54:47,100 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-08-22 16:54:47,101 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:54:47,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-08-22 16:54:47,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2020-08-22 16:54:47,101 INFO L87 Difference]: Start difference. First operand 4478 states and 4969 transitions. Second operand 14 states. [2020-08-22 16:54:52,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:54:52,686 INFO L93 Difference]: Finished difference Result 9961 states and 11173 transitions. [2020-08-22 16:54:52,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-08-22 16:54:52,687 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 642 [2020-08-22 16:54:52,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:54:52,708 INFO L225 Difference]: With dead ends: 9961 [2020-08-22 16:54:52,708 INFO L226 Difference]: Without dead ends: 5638 [2020-08-22 16:54:52,717 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 717 GetRequests, 677 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 428 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=342, Invalid=1380, Unknown=0, NotChecked=0, Total=1722 [2020-08-22 16:54:52,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5638 states. [2020-08-22 16:54:52,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5638 to 5048. [2020-08-22 16:54:52,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5048 states. [2020-08-22 16:54:52,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5048 states to 5048 states and 5596 transitions. [2020-08-22 16:54:52,833 INFO L78 Accepts]: Start accepts. Automaton has 5048 states and 5596 transitions. Word has length 642 [2020-08-22 16:54:52,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:54:52,834 INFO L479 AbstractCegarLoop]: Abstraction has 5048 states and 5596 transitions. [2020-08-22 16:54:52,834 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-08-22 16:54:52,834 INFO L276 IsEmpty]: Start isEmpty. Operand 5048 states and 5596 transitions. [2020-08-22 16:54:52,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 769 [2020-08-22 16:54:52,846 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:54:52,847 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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] [2020-08-22 16:54:53,060 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-08-22 16:54:53,060 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:54:53,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:54:53,061 INFO L82 PathProgramCache]: Analyzing trace with hash 95380981, now seen corresponding path program 1 times [2020-08-22 16:54:53,061 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:54:53,062 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589319013] [2020-08-22 16:54:53,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:54:53,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:53,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:54:53,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:53,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 16:54:53,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:53,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-22 16:54:53,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:53,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-22 16:54:53,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:53,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-08-22 16:54:53,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:53,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-08-22 16:54:53,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:53,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2020-08-22 16:54:53,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:53,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 655 [2020-08-22 16:54:53,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:54,504 INFO L134 CoverageAnalysis]: Checked inductivity of 2186 backedges. 648 proven. 268 refuted. 0 times theorem prover too weak. 1270 trivial. 0 not checked. [2020-08-22 16:54:54,505 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589319013] [2020-08-22 16:54:54,505 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [690862004] [2020-08-22 16:54:54,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2020-08-22 16:54:54,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:54,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 1136 conjuncts, 7 conjunts are in the unsatisfiable core [2020-08-22 16:54:54,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-08-22 16:54:54,803 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-08-22 16:54:54,804 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-08-22 16:54:54,805 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-08-22 16:54:55,166 INFO L134 CoverageAnalysis]: Checked inductivity of 2186 backedges. 1519 proven. 2 refuted. 0 times theorem prover too weak. 665 trivial. 0 not checked. [2020-08-22 16:54:55,166 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-08-22 16:54:55,167 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 12 [2020-08-22 16:54:55,167 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483192136] [2020-08-22 16:54:55,169 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-22 16:54:55,169 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:54:55,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-22 16:54:55,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-08-22 16:54:55,169 INFO L87 Difference]: Start difference. First operand 5048 states and 5596 transitions. Second operand 12 states. [2020-08-22 16:54:58,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:54:58,813 INFO L93 Difference]: Finished difference Result 11552 states and 12741 transitions. [2020-08-22 16:54:58,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-08-22 16:54:58,814 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 768 [2020-08-22 16:54:58,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:54:58,836 INFO L225 Difference]: With dead ends: 11552 [2020-08-22 16:54:58,837 INFO L226 Difference]: Without dead ends: 6694 [2020-08-22 16:54:58,847 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 822 GetRequests, 793 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=191, Invalid=679, Unknown=0, NotChecked=0, Total=870 [2020-08-22 16:54:58,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6694 states. [2020-08-22 16:54:58,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6694 to 4868. [2020-08-22 16:54:58,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4868 states. [2020-08-22 16:54:58,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4868 states to 4868 states and 5410 transitions. [2020-08-22 16:54:58,949 INFO L78 Accepts]: Start accepts. Automaton has 4868 states and 5410 transitions. Word has length 768 [2020-08-22 16:54:58,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:54:58,950 INFO L479 AbstractCegarLoop]: Abstraction has 4868 states and 5410 transitions. [2020-08-22 16:54:58,950 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-22 16:54:58,950 INFO L276 IsEmpty]: Start isEmpty. Operand 4868 states and 5410 transitions. [2020-08-22 16:54:58,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 796 [2020-08-22 16:54:58,964 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:54:58,965 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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] [2020-08-22 16:54:59,180 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-08-22 16:54:59,180 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:54:59,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:54:59,181 INFO L82 PathProgramCache]: Analyzing trace with hash 1074697562, now seen corresponding path program 1 times [2020-08-22 16:54:59,181 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:54:59,181 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387373251] [2020-08-22 16:54:59,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:54:59,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:59,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:54:59,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:59,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 16:54:59,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:59,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-22 16:54:59,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:59,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-22 16:54:59,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:59,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-08-22 16:54:59,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:59,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-08-22 16:54:59,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:54:59,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 682 [2020-08-22 16:54:59,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:00,044 INFO L134 CoverageAnalysis]: Checked inductivity of 1769 backedges. 754 proven. 73 refuted. 0 times theorem prover too weak. 942 trivial. 0 not checked. [2020-08-22 16:55:00,044 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387373251] [2020-08-22 16:55:00,044 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2032813649] [2020-08-22 16:55:00,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2020-08-22 16:55:00,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:00,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 1132 conjuncts, 7 conjunts are in the unsatisfiable core [2020-08-22 16:55:00,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-08-22 16:55:00,745 INFO L134 CoverageAnalysis]: Checked inductivity of 1769 backedges. 1243 proven. 10 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2020-08-22 16:55:00,746 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-08-22 16:55:00,746 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2020-08-22 16:55:00,747 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902926757] [2020-08-22 16:55:00,748 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 16:55:00,748 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:55:00,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 16:55:00,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-08-22 16:55:00,749 INFO L87 Difference]: Start difference. First operand 4868 states and 5410 transitions. Second operand 10 states. [2020-08-22 16:55:03,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:55:03,059 INFO L93 Difference]: Finished difference Result 11204 states and 12532 transitions. [2020-08-22 16:55:03,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-08-22 16:55:03,060 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 795 [2020-08-22 16:55:03,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:55:03,078 INFO L225 Difference]: With dead ends: 11204 [2020-08-22 16:55:03,078 INFO L226 Difference]: Without dead ends: 6526 [2020-08-22 16:55:03,086 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 833 GetRequests, 815 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=268, Unknown=0, NotChecked=0, Total=380 [2020-08-22 16:55:03,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6526 states. [2020-08-22 16:55:03,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6526 to 6154. [2020-08-22 16:55:03,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6154 states. [2020-08-22 16:55:03,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6154 states to 6154 states and 6872 transitions. [2020-08-22 16:55:03,197 INFO L78 Accepts]: Start accepts. Automaton has 6154 states and 6872 transitions. Word has length 795 [2020-08-22 16:55:03,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:55:03,198 INFO L479 AbstractCegarLoop]: Abstraction has 6154 states and 6872 transitions. [2020-08-22 16:55:03,198 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 16:55:03,198 INFO L276 IsEmpty]: Start isEmpty. Operand 6154 states and 6872 transitions. [2020-08-22 16:55:03,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 802 [2020-08-22 16:55:03,213 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:55:03,214 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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] [2020-08-22 16:55:03,429 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:55:03,430 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:55:03,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:55:03,430 INFO L82 PathProgramCache]: Analyzing trace with hash 848396150, now seen corresponding path program 1 times [2020-08-22 16:55:03,431 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:55:03,431 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41442833] [2020-08-22 16:55:03,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:55:03,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:03,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:55:03,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:03,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 16:55:03,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:03,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-22 16:55:03,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:03,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-22 16:55:03,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:03,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-08-22 16:55:03,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:03,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-08-22 16:55:03,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:03,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 576 [2020-08-22 16:55:03,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:04,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 688 [2020-08-22 16:55:04,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:05,194 INFO L134 CoverageAnalysis]: Checked inductivity of 2195 backedges. 825 proven. 89 refuted. 0 times theorem prover too weak. 1281 trivial. 0 not checked. [2020-08-22 16:55:05,195 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41442833] [2020-08-22 16:55:05,195 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1179111876] [2020-08-22 16:55:05,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:55:05,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:05,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 1172 conjuncts, 9 conjunts are in the unsatisfiable core [2020-08-22 16:55:05,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-08-22 16:55:05,825 INFO L134 CoverageAnalysis]: Checked inductivity of 2195 backedges. 1382 proven. 2 refuted. 0 times theorem prover too weak. 811 trivial. 0 not checked. [2020-08-22 16:55:05,825 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-08-22 16:55:05,826 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5] total 14 [2020-08-22 16:55:05,826 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620099642] [2020-08-22 16:55:05,827 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-08-22 16:55:05,827 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:55:05,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-08-22 16:55:05,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-08-22 16:55:05,828 INFO L87 Difference]: Start difference. First operand 6154 states and 6872 transitions. Second operand 14 states. [2020-08-22 16:55:11,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:55:11,989 INFO L93 Difference]: Finished difference Result 12881 states and 14375 transitions. [2020-08-22 16:55:11,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-08-22 16:55:11,990 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 801 [2020-08-22 16:55:11,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:55:12,011 INFO L225 Difference]: With dead ends: 12881 [2020-08-22 16:55:12,011 INFO L226 Difference]: Without dead ends: 6751 [2020-08-22 16:55:12,024 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 881 GetRequests, 837 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 512 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=411, Invalid=1569, Unknown=0, NotChecked=0, Total=1980 [2020-08-22 16:55:12,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6751 states. [2020-08-22 16:55:12,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6751 to 5968. [2020-08-22 16:55:12,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5968 states. [2020-08-22 16:55:12,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5968 states to 5968 states and 6545 transitions. [2020-08-22 16:55:12,152 INFO L78 Accepts]: Start accepts. Automaton has 5968 states and 6545 transitions. Word has length 801 [2020-08-22 16:55:12,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:55:12,152 INFO L479 AbstractCegarLoop]: Abstraction has 5968 states and 6545 transitions. [2020-08-22 16:55:12,152 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-08-22 16:55:12,153 INFO L276 IsEmpty]: Start isEmpty. Operand 5968 states and 6545 transitions. [2020-08-22 16:55:12,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 872 [2020-08-22 16:55:12,166 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:55:12,167 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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] [2020-08-22 16:55:12,381 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:55:12,381 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:55:12,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:55:12,382 INFO L82 PathProgramCache]: Analyzing trace with hash 1556654866, now seen corresponding path program 1 times [2020-08-22 16:55:12,382 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:55:12,382 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136166328] [2020-08-22 16:55:12,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:55:12,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:12,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:55:12,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:12,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 16:55:12,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:12,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-22 16:55:12,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:12,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-22 16:55:12,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:12,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-08-22 16:55:12,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:12,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-08-22 16:55:12,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:12,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 579 [2020-08-22 16:55:12,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:12,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 758 [2020-08-22 16:55:12,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:13,441 INFO L134 CoverageAnalysis]: Checked inductivity of 2263 backedges. 616 proven. 158 refuted. 0 times theorem prover too weak. 1489 trivial. 0 not checked. [2020-08-22 16:55:13,442 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136166328] [2020-08-22 16:55:13,442 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [249496213] [2020-08-22 16:55:13,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:55:13,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:13,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 1248 conjuncts, 4 conjunts are in the unsatisfiable core [2020-08-22 16:55:13,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-08-22 16:55:14,045 INFO L134 CoverageAnalysis]: Checked inductivity of 2263 backedges. 1450 proven. 2 refuted. 0 times theorem prover too weak. 811 trivial. 0 not checked. [2020-08-22 16:55:14,046 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-08-22 16:55:14,046 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 11 [2020-08-22 16:55:14,046 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622357282] [2020-08-22 16:55:14,047 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-22 16:55:14,047 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:55:14,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-22 16:55:14,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-08-22 16:55:14,048 INFO L87 Difference]: Start difference. First operand 5968 states and 6545 transitions. Second operand 11 states. [2020-08-22 16:55:17,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:55:17,440 INFO L93 Difference]: Finished difference Result 12302 states and 13457 transitions. [2020-08-22 16:55:17,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-08-22 16:55:17,441 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 871 [2020-08-22 16:55:17,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:55:17,458 INFO L225 Difference]: With dead ends: 12302 [2020-08-22 16:55:17,458 INFO L226 Difference]: Without dead ends: 6524 [2020-08-22 16:55:17,467 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 925 GetRequests, 899 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=170, Invalid=586, Unknown=0, NotChecked=0, Total=756 [2020-08-22 16:55:17,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6524 states. [2020-08-22 16:55:17,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6524 to 5972. [2020-08-22 16:55:17,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5972 states. [2020-08-22 16:55:17,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5972 states to 5972 states and 6474 transitions. [2020-08-22 16:55:17,579 INFO L78 Accepts]: Start accepts. Automaton has 5972 states and 6474 transitions. Word has length 871 [2020-08-22 16:55:17,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:55:17,580 INFO L479 AbstractCegarLoop]: Abstraction has 5972 states and 6474 transitions. [2020-08-22 16:55:17,580 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-22 16:55:17,581 INFO L276 IsEmpty]: Start isEmpty. Operand 5972 states and 6474 transitions. [2020-08-22 16:55:17,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 971 [2020-08-22 16:55:17,596 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:55:17,596 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 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] [2020-08-22 16:55:17,811 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-08-22 16:55:17,811 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:55:17,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:55:17,812 INFO L82 PathProgramCache]: Analyzing trace with hash -1319533531, now seen corresponding path program 1 times [2020-08-22 16:55:17,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:55:17,812 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490066977] [2020-08-22 16:55:17,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:55:17,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:18,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:55:18,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:18,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 16:55:18,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:18,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-22 16:55:18,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:18,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-22 16:55:18,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:18,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-08-22 16:55:18,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:18,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-08-22 16:55:18,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:18,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-08-22 16:55:18,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:18,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-08-22 16:55:18,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:18,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-08-22 16:55:18,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:18,925 INFO L134 CoverageAnalysis]: Checked inductivity of 2876 backedges. 826 proven. 71 refuted. 0 times theorem prover too weak. 1979 trivial. 0 not checked. [2020-08-22 16:55:18,925 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490066977] [2020-08-22 16:55:18,925 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [872141244] [2020-08-22 16:55:18,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:55:19,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:19,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 1382 conjuncts, 21 conjunts are in the unsatisfiable core [2020-08-22 16:55:19,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-08-22 16:55:19,216 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-08-22 16:55:19,259 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-08-22 16:55:19,270 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-08-22 16:55:19,488 INFO L603 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-08-22 16:55:20,087 INFO L134 CoverageAnalysis]: Checked inductivity of 2876 backedges. 1513 proven. 10 refuted. 0 times theorem prover too weak. 1353 trivial. 0 not checked. [2020-08-22 16:55:20,087 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-08-22 16:55:20,088 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 19 [2020-08-22 16:55:20,088 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201871013] [2020-08-22 16:55:20,089 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-08-22 16:55:20,089 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:55:20,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-08-22 16:55:20,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2020-08-22 16:55:20,090 INFO L87 Difference]: Start difference. First operand 5972 states and 6474 transitions. Second operand 19 states. [2020-08-22 16:55:28,150 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2020-08-22 16:55:31,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:55:31,382 INFO L93 Difference]: Finished difference Result 14142 states and 15296 transitions. [2020-08-22 16:55:31,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2020-08-22 16:55:31,383 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 970 [2020-08-22 16:55:31,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:55:31,405 INFO L225 Difference]: With dead ends: 14142 [2020-08-22 16:55:31,405 INFO L226 Difference]: Without dead ends: 8360 [2020-08-22 16:55:31,416 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1116 GetRequests, 1033 SyntacticMatches, 1 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 2456 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=970, Invalid=6002, Unknown=0, NotChecked=0, Total=6972 [2020-08-22 16:55:31,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8360 states. [2020-08-22 16:55:31,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8360 to 6894. [2020-08-22 16:55:31,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6894 states. [2020-08-22 16:55:31,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6894 states to 6894 states and 7330 transitions. [2020-08-22 16:55:31,546 INFO L78 Accepts]: Start accepts. Automaton has 6894 states and 7330 transitions. Word has length 970 [2020-08-22 16:55:31,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:55:31,547 INFO L479 AbstractCegarLoop]: Abstraction has 6894 states and 7330 transitions. [2020-08-22 16:55:31,547 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-08-22 16:55:31,547 INFO L276 IsEmpty]: Start isEmpty. Operand 6894 states and 7330 transitions. [2020-08-22 16:55:31,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1515 [2020-08-22 16:55:31,576 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:55:31,577 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:55:31,792 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-08-22 16:55:31,792 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:55:31,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:55:31,793 INFO L82 PathProgramCache]: Analyzing trace with hash 1398103861, now seen corresponding path program 1 times [2020-08-22 16:55:31,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:55:31,793 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582857447] [2020-08-22 16:55:31,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:55:31,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:32,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:55:32,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:32,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 16:55:32,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:32,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-22 16:55:32,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:32,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-22 16:55:32,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:32,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-08-22 16:55:32,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:32,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-08-22 16:55:32,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:32,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-08-22 16:55:32,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:32,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-08-22 16:55:32,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:32,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-08-22 16:55:32,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:32,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-08-22 16:55:32,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:32,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-08-22 16:55:32,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:32,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-08-22 16:55:32,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:33,682 INFO L134 CoverageAnalysis]: Checked inductivity of 6489 backedges. 2564 proven. 97 refuted. 0 times theorem prover too weak. 3828 trivial. 0 not checked. [2020-08-22 16:55:33,682 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582857447] [2020-08-22 16:55:33,682 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1978398409] [2020-08-22 16:55:33,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:55:34,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:34,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 2039 conjuncts, 6 conjunts are in the unsatisfiable core [2020-08-22 16:55:34,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-08-22 16:55:34,129 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-08-22 16:55:34,135 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-08-22 16:55:34,138 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-08-22 16:55:34,148 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-08-22 16:55:34,149 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-08-22 16:55:34,184 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-08-22 16:55:34,218 WARN L333 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Possible infinite loop detected aux_mod_52 already exists [2020-08-22 16:55:34,218 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 16:55:34,219 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-22 16:55:34,219 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739313413] [2020-08-22 16:55:34,220 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 16:55:34,220 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:55:34,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 16:55:34,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-22 16:55:34,221 INFO L87 Difference]: Start difference. First operand 6894 states and 7330 transitions. Second operand 8 states. [2020-08-22 16:55:36,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:55:36,790 INFO L93 Difference]: Finished difference Result 16370 states and 17501 transitions. [2020-08-22 16:55:36,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-22 16:55:36,791 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1514 [2020-08-22 16:55:36,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:55:36,809 INFO L225 Difference]: With dead ends: 16370 [2020-08-22 16:55:36,810 INFO L226 Difference]: Without dead ends: 8738 [2020-08-22 16:55:36,822 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1511 GetRequests, 1500 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-08-22 16:55:36,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8738 states. [2020-08-22 16:55:36,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8738 to 7632. [2020-08-22 16:55:36,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7632 states. [2020-08-22 16:55:36,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7632 states to 7632 states and 8043 transitions. [2020-08-22 16:55:36,972 INFO L78 Accepts]: Start accepts. Automaton has 7632 states and 8043 transitions. Word has length 1514 [2020-08-22 16:55:36,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:55:36,974 INFO L479 AbstractCegarLoop]: Abstraction has 7632 states and 8043 transitions. [2020-08-22 16:55:36,974 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 16:55:36,974 INFO L276 IsEmpty]: Start isEmpty. Operand 7632 states and 8043 transitions. [2020-08-22 16:55:37,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1651 [2020-08-22 16:55:37,008 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:55:37,009 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 8, 8, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 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, 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] [2020-08-22 16:55:37,222 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2020-08-22 16:55:37,223 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:55:37,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:55:37,224 INFO L82 PathProgramCache]: Analyzing trace with hash -1464304767, now seen corresponding path program 1 times [2020-08-22 16:55:37,224 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:55:37,224 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975018917] [2020-08-22 16:55:37,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:55:37,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:37,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:55:37,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:37,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 16:55:37,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:37,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-22 16:55:37,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:37,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-22 16:55:37,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:37,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-08-22 16:55:37,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:37,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-08-22 16:55:37,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:37,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-08-22 16:55:37,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:37,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-08-22 16:55:37,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:38,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-08-22 16:55:38,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:38,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-08-22 16:55:38,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:38,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-08-22 16:55:38,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:38,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-08-22 16:55:38,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:38,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-08-22 16:55:38,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:38,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1537 [2020-08-22 16:55:38,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:39,729 INFO L134 CoverageAnalysis]: Checked inductivity of 8459 backedges. 1341 proven. 343 refuted. 0 times theorem prover too weak. 6775 trivial. 0 not checked. [2020-08-22 16:55:39,729 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975018917] [2020-08-22 16:55:39,729 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [17710675] [2020-08-22 16:55:39,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:55:40,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:55:40,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 2251 conjuncts, 11 conjunts are in the unsatisfiable core [2020-08-22 16:55:40,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-08-22 16:55:40,227 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-08-22 16:55:40,238 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-08-22 16:55:40,242 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-08-22 16:55:40,421 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-08-22 16:55:41,617 INFO L134 CoverageAnalysis]: Checked inductivity of 8459 backedges. 2514 proven. 88 refuted. 0 times theorem prover too weak. 5857 trivial. 0 not checked. [2020-08-22 16:55:41,618 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-08-22 16:55:41,618 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 17 [2020-08-22 16:55:41,619 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108188636] [2020-08-22 16:55:41,620 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-08-22 16:55:41,620 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:55:41,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-08-22 16:55:41,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2020-08-22 16:55:41,621 INFO L87 Difference]: Start difference. First operand 7632 states and 8043 transitions. Second operand 17 states. [2020-08-22 16:55:58,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:55:58,550 INFO L93 Difference]: Finished difference Result 18032 states and 19145 transitions. [2020-08-22 16:55:58,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2020-08-22 16:55:58,550 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 1650 [2020-08-22 16:55:58,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:55:58,552 INFO L225 Difference]: With dead ends: 18032 [2020-08-22 16:55:58,552 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 16:55:58,566 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1811 GetRequests, 1731 SyntacticMatches, 3 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2003 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1148, Invalid=5014, Unknown=0, NotChecked=0, Total=6162 [2020-08-22 16:55:58,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 16:55:58,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 16:55:58,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 16:55:58,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 16:55:58,566 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1650 [2020-08-22 16:55:58,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:55:58,567 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 16:55:58,567 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-08-22 16:55:58,567 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 16:55:58,567 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 16:55:58,770 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:55:58,772 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 16:55:59,075 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 122 [2020-08-22 16:55:59,331 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 123 [2020-08-22 16:56:00,216 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 122 [2020-08-22 16:56:00,466 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 122 [2020-08-22 16:56:01,317 WARN L193 SmtUtils]: Spent 558.00 ms on a formula simplification. DAG size of input: 400 DAG size of output: 389 [2020-08-22 16:56:01,742 WARN L193 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 400 DAG size of output: 389 [2020-08-22 16:56:01,881 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 28 [2020-08-22 16:56:07,410 WARN L193 SmtUtils]: Spent 5.50 s on a formula simplification. DAG size of input: 569 DAG size of output: 114 [2020-08-22 16:56:10,609 WARN L193 SmtUtils]: Spent 3.15 s on a formula simplification. DAG size of input: 405 DAG size of output: 71 [2020-08-22 16:56:13,769 WARN L193 SmtUtils]: Spent 3.16 s on a formula simplification. DAG size of input: 405 DAG size of output: 71 [2020-08-22 16:56:13,774 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-22 16:56:13,775 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a24~0 |old(~a24~0)|) (= ~inputC~0 |old(~inputC~0)|) (= ~a21~0 |old(~a21~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputA~0 |old(~inputA~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= ~a12~0 |old(~a12~0)|) (= ~inputB~0 |old(~inputB~0)|) (= ~a15~0 |old(~a15~0)|)) [2020-08-22 16:56:13,775 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-22 16:56:13,775 INFO L268 CegarLoopResult]: For program point L432(lines 432 870) no Hoare annotation was computed. [2020-08-22 16:56:13,775 INFO L268 CegarLoopResult]: For program point L366(lines 366 870) no Hoare annotation was computed. [2020-08-22 16:56:13,775 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,775 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,776 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,776 INFO L268 CegarLoopResult]: For program point L235(lines 235 870) no Hoare annotation was computed. [2020-08-22 16:56:13,776 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-08-22 16:56:13,776 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-08-22 16:56:13,776 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-08-22 16:56:13,776 INFO L268 CegarLoopResult]: For program point L764(lines 764 870) no Hoare annotation was computed. [2020-08-22 16:56:13,776 INFO L268 CegarLoopResult]: For program point L632(lines 632 870) no Hoare annotation was computed. [2020-08-22 16:56:13,777 INFO L268 CegarLoopResult]: For program point L500(lines 500 870) no Hoare annotation was computed. [2020-08-22 16:56:13,777 INFO L268 CegarLoopResult]: For program point L831(lines 831 870) no Hoare annotation was computed. [2020-08-22 16:56:13,777 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,777 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,777 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,777 INFO L268 CegarLoopResult]: For program point L700(lines 700 870) no Hoare annotation was computed. [2020-08-22 16:56:13,777 INFO L268 CegarLoopResult]: For program point L568(lines 568 870) no Hoare annotation was computed. [2020-08-22 16:56:13,777 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-08-22 16:56:13,777 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-08-22 16:56:13,778 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-08-22 16:56:13,778 INFO L268 CegarLoopResult]: For program point L305(lines 305 870) no Hoare annotation was computed. [2020-08-22 16:56:13,778 INFO L268 CegarLoopResult]: For program point L438(lines 438 870) no Hoare annotation was computed. [2020-08-22 16:56:13,778 INFO L268 CegarLoopResult]: For program point L372(lines 372 870) no Hoare annotation was computed. [2020-08-22 16:56:13,778 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,778 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,778 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,778 INFO L268 CegarLoopResult]: For program point L241(lines 241 870) no Hoare annotation was computed. [2020-08-22 16:56:13,778 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-08-22 16:56:13,778 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-08-22 16:56:13,778 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-08-22 16:56:13,778 INFO L268 CegarLoopResult]: For program point L638(lines 638 870) no Hoare annotation was computed. [2020-08-22 16:56:13,778 INFO L268 CegarLoopResult]: For program point L506(lines 506 870) no Hoare annotation was computed. [2020-08-22 16:56:13,778 INFO L268 CegarLoopResult]: For program point L837(lines 837 870) no Hoare annotation was computed. [2020-08-22 16:56:13,779 INFO L268 CegarLoopResult]: For program point L771(lines 771 870) no Hoare annotation was computed. [2020-08-22 16:56:13,779 INFO L268 CegarLoopResult]: For program point L573(lines 573 870) no Hoare annotation was computed. [2020-08-22 16:56:13,779 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,779 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,779 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,779 INFO L268 CegarLoopResult]: For program point L706(lines 706 870) no Hoare annotation was computed. [2020-08-22 16:56:13,779 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-08-22 16:56:13,779 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-08-22 16:56:13,779 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-08-22 16:56:13,780 INFO L268 CegarLoopResult]: For program point L311(lines 311 870) no Hoare annotation was computed. [2020-08-22 16:56:13,780 INFO L268 CegarLoopResult]: For program point L444(lines 444 870) no Hoare annotation was computed. [2020-08-22 16:56:13,780 INFO L268 CegarLoopResult]: For program point L378(lines 378 870) no Hoare annotation was computed. [2020-08-22 16:56:13,780 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,780 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,780 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,780 INFO L268 CegarLoopResult]: For program point L247(lines 247 870) no Hoare annotation was computed. [2020-08-22 16:56:13,780 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-08-22 16:56:13,780 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-08-22 16:56:13,781 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-08-22 16:56:13,781 INFO L268 CegarLoopResult]: For program point L842(lines 842 870) no Hoare annotation was computed. [2020-08-22 16:56:13,781 INFO L268 CegarLoopResult]: For program point L644(lines 644 870) no Hoare annotation was computed. [2020-08-22 16:56:13,781 INFO L268 CegarLoopResult]: For program point L512(lines 512 870) no Hoare annotation was computed. [2020-08-22 16:56:13,781 INFO L268 CegarLoopResult]: For program point L777(lines 777 870) no Hoare annotation was computed. [2020-08-22 16:56:13,781 INFO L268 CegarLoopResult]: For program point L579(lines 579 870) no Hoare annotation was computed. [2020-08-22 16:56:13,781 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,781 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,781 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,782 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,782 INFO L268 CegarLoopResult]: For program point L712(lines 712 870) no Hoare annotation was computed. [2020-08-22 16:56:13,782 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-08-22 16:56:13,782 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-08-22 16:56:13,782 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-08-22 16:56:13,782 INFO L268 CegarLoopResult]: For program point L449(lines 449 870) no Hoare annotation was computed. [2020-08-22 16:56:13,782 INFO L268 CegarLoopResult]: For program point L317(lines 317 870) no Hoare annotation was computed. [2020-08-22 16:56:13,782 INFO L268 CegarLoopResult]: For program point L384(lines 384 870) no Hoare annotation was computed. [2020-08-22 16:56:13,782 INFO L268 CegarLoopResult]: For program point L252(lines 252 870) no Hoare annotation was computed. [2020-08-22 16:56:13,783 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,783 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,783 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,783 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-08-22 16:56:13,783 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-08-22 16:56:13,783 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-08-22 16:56:13,783 INFO L268 CegarLoopResult]: For program point L848(lines 848 870) no Hoare annotation was computed. [2020-08-22 16:56:13,783 INFO L268 CegarLoopResult]: For program point L650(lines 650 870) no Hoare annotation was computed. [2020-08-22 16:56:13,783 INFO L268 CegarLoopResult]: For program point L518(lines 518 870) no Hoare annotation was computed. [2020-08-22 16:56:13,783 INFO L268 CegarLoopResult]: For program point L783(lines 783 870) no Hoare annotation was computed. [2020-08-22 16:56:13,784 INFO L268 CegarLoopResult]: For program point L585(lines 585 870) no Hoare annotation was computed. [2020-08-22 16:56:13,784 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,784 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,784 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,784 INFO L268 CegarLoopResult]: For program point L718(lines 718 870) no Hoare annotation was computed. [2020-08-22 16:56:13,784 INFO L268 CegarLoopResult]: For program point L454(lines 454 870) no Hoare annotation was computed. [2020-08-22 16:56:13,784 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-08-22 16:56:13,784 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-08-22 16:56:13,784 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-08-22 16:56:13,784 INFO L268 CegarLoopResult]: For program point L323(lines 323 870) no Hoare annotation was computed. [2020-08-22 16:56:13,785 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse12 (= ~a21~0 |old(~a21~0)|)) (.cse13 (not (= ~a15~0 6))) (.cse2 (= ~a24~0 1)) (.cse14 (<= ~a15~0 8)) (.cse3 (= ~a12~0 |old(~a12~0)|)) (.cse4 (= ~a15~0 |old(~a15~0)|))) (let ((.cse0 (not (<= 19 |old(~a12~0)|))) (.cse5 (not (<= 10 |old(~a21~0)|))) (.cse7 (and .cse12 .cse13 .cse2 .cse14 .cse3 .cse4)) (.cse10 (not (= 7 |old(~a21~0)|))) (.cse15 (not (<= |old(~a21~0)| 6))) (.cse9 (= 6 |old(~a15~0)|)) (.cse8 (not (<= |old(~a15~0)| 8))) (.cse1 (not (= |old(~a24~0)| 1))) (.cse11 (not (<= 8 |old(~a15~0)|))) (.cse6 (and .cse12 .cse2 .cse3 .cse4))) (and (or .cse0 .cse1 (not (= 9 |old(~a21~0)|)) (and .cse2 (= ~a21~0 9) .cse3 .cse4)) (or .cse0 .cse1 .cse5 .cse6) (or .cse0 .cse7 .cse1 .cse8 .cse9) (or .cse7 .cse1 (not (<= |old(~a12~0)| 10)) .cse8 .cse9) (or .cse0 .cse10 .cse1 .cse11 (and .cse2 .cse3 (= 7 ~a21~0) .cse4)) (or .cse1 .cse5 .cse6 (not (<= |old(~a12~0)| 11))) (or .cse7 .cse10 .cse1 .cse8 .cse9) (or (and (= 5 ~a15~0) .cse12 .cse13 .cse2 .cse14 .cse3) .cse1 (not (= 6 |old(~a21~0)|)) (not (= 5 |old(~a15~0)|))) (or .cse1 .cse6 (not (<= 13 |old(~a12~0)|)) .cse8 .cse15 (forall ((aux_div_31 Int)) (let ((.cse16 (* 5 aux_div_31))) (or (not (<= |old(~a12~0)| aux_div_31)) (not (<= 366341 .cse16)) (not (<= .cse16 366413)))))) (or (and (= ~a24~0 |old(~a24~0)|) .cse12 .cse13 .cse14 .cse3 .cse4) .cse8 .cse15 .cse9 (not (<= (+ |old(~a12~0)| 49) 0))) (or .cse1 (not (= 8 |old(~a21~0)|)) (not (= 9 |old(~a15~0)|)) (and .cse2 (= ~a21~0 8) .cse3 .cse4)) (or (not (<= 8 |old(~a21~0)|)) .cse1 .cse6 .cse8) (or .cse1 .cse11 .cse6 (not (<= 12849 |old(~a12~0)|)) (not (<= |old(~a21~0)| 7)))))) [2020-08-22 16:56:13,785 INFO L268 CegarLoopResult]: For program point L390(lines 390 870) no Hoare annotation was computed. [2020-08-22 16:56:13,785 INFO L268 CegarLoopResult]: For program point L258(lines 258 870) no Hoare annotation was computed. [2020-08-22 16:56:13,785 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,785 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,785 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,786 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-08-22 16:56:13,786 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-08-22 16:56:13,786 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-08-22 16:56:13,786 INFO L268 CegarLoopResult]: For program point L854(lines 854 870) no Hoare annotation was computed. [2020-08-22 16:56:13,786 INFO L268 CegarLoopResult]: For program point L656(lines 656 870) no Hoare annotation was computed. [2020-08-22 16:56:13,786 INFO L268 CegarLoopResult]: For program point L524(lines 524 870) no Hoare annotation was computed. [2020-08-22 16:56:13,786 INFO L268 CegarLoopResult]: For program point L789(lines 789 870) no Hoare annotation was computed. [2020-08-22 16:56:13,786 INFO L268 CegarLoopResult]: For program point L591(lines 591 870) no Hoare annotation was computed. [2020-08-22 16:56:13,786 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,787 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,787 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,787 INFO L268 CegarLoopResult]: For program point L724(lines 724 870) no Hoare annotation was computed. [2020-08-22 16:56:13,787 INFO L268 CegarLoopResult]: For program point L460(lines 460 870) no Hoare annotation was computed. [2020-08-22 16:56:13,787 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-08-22 16:56:13,787 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-08-22 16:56:13,787 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-08-22 16:56:13,787 INFO L268 CegarLoopResult]: For program point L329(lines 329 870) no Hoare annotation was computed. [2020-08-22 16:56:13,787 INFO L268 CegarLoopResult]: For program point L396(lines 396 870) no Hoare annotation was computed. [2020-08-22 16:56:13,788 INFO L268 CegarLoopResult]: For program point L264(lines 264 870) no Hoare annotation was computed. [2020-08-22 16:56:13,788 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,788 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,788 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,788 INFO L268 CegarLoopResult]: For program point L859(lines 859 870) no Hoare annotation was computed. [2020-08-22 16:56:13,788 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-08-22 16:56:13,788 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-08-22 16:56:13,788 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-08-22 16:56:13,788 INFO L268 CegarLoopResult]: For program point L662(lines 662 870) no Hoare annotation was computed. [2020-08-22 16:56:13,788 INFO L268 CegarLoopResult]: For program point L530(lines 530 870) no Hoare annotation was computed. [2020-08-22 16:56:13,789 INFO L268 CegarLoopResult]: For program point L795(lines 795 870) no Hoare annotation was computed. [2020-08-22 16:56:13,789 INFO L268 CegarLoopResult]: For program point L597(lines 597 870) no Hoare annotation was computed. [2020-08-22 16:56:13,789 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,789 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,789 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,789 INFO L268 CegarLoopResult]: For program point L730(lines 730 870) no Hoare annotation was computed. [2020-08-22 16:56:13,789 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-08-22 16:56:13,789 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-08-22 16:56:13,789 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-08-22 16:56:13,790 INFO L268 CegarLoopResult]: For program point L467(lines 467 870) no Hoare annotation was computed. [2020-08-22 16:56:13,790 INFO L268 CegarLoopResult]: For program point L335(lines 335 870) no Hoare annotation was computed. [2020-08-22 16:56:13,790 INFO L268 CegarLoopResult]: For program point L269(lines 269 870) no Hoare annotation was computed. [2020-08-22 16:56:13,790 INFO L268 CegarLoopResult]: For program point L402(lines 402 870) no Hoare annotation was computed. [2020-08-22 16:56:13,790 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,790 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,790 INFO L268 CegarLoopResult]: For program point L865(lines 865 870) no Hoare annotation was computed. [2020-08-22 16:56:13,790 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-08-22 16:56:13,790 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-08-22 16:56:13,790 INFO L268 CegarLoopResult]: For program point L668(lines 668 870) no Hoare annotation was computed. [2020-08-22 16:56:13,791 INFO L268 CegarLoopResult]: For program point L536(lines 536 870) no Hoare annotation was computed. [2020-08-22 16:56:13,791 INFO L268 CegarLoopResult]: For program point L801(lines 801 870) no Hoare annotation was computed. [2020-08-22 16:56:13,791 INFO L268 CegarLoopResult]: For program point L735(lines 735 870) no Hoare annotation was computed. [2020-08-22 16:56:13,791 INFO L268 CegarLoopResult]: For program point L603(lines 603 870) no Hoare annotation was computed. [2020-08-22 16:56:13,791 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 127) no Hoare annotation was computed. [2020-08-22 16:56:13,791 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,791 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,791 INFO L268 CegarLoopResult]: For program point L472(lines 472 870) no Hoare annotation was computed. [2020-08-22 16:56:13,792 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-08-22 16:56:13,792 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-08-22 16:56:13,792 INFO L268 CegarLoopResult]: For program point L341(lines 341 870) no Hoare annotation was computed. [2020-08-22 16:56:13,792 INFO L268 CegarLoopResult]: For program point L275(lines 275 870) no Hoare annotation was computed. [2020-08-22 16:56:13,792 INFO L268 CegarLoopResult]: For program point L408(lines 408 870) no Hoare annotation was computed. [2020-08-22 16:56:13,792 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,792 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,792 INFO L268 CegarLoopResult]: For program point L541(lines 541 870) no Hoare annotation was computed. [2020-08-22 16:56:13,792 INFO L268 CegarLoopResult]: For program point L211(lines 211 870) no Hoare annotation was computed. [2020-08-22 16:56:13,792 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-08-22 16:56:13,792 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-08-22 16:56:13,792 INFO L268 CegarLoopResult]: For program point L674(lines 674 870) no Hoare annotation was computed. [2020-08-22 16:56:13,793 INFO L268 CegarLoopResult]: For program point L807(lines 807 870) no Hoare annotation was computed. [2020-08-22 16:56:13,793 INFO L268 CegarLoopResult]: For program point L741(lines 741 870) no Hoare annotation was computed. [2020-08-22 16:56:13,793 INFO L268 CegarLoopResult]: For program point L609(lines 609 870) no Hoare annotation was computed. [2020-08-22 16:56:13,793 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,793 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,793 INFO L268 CegarLoopResult]: For program point L478(lines 478 870) no Hoare annotation was computed. [2020-08-22 16:56:13,793 INFO L268 CegarLoopResult]: For program point L280(lines 280 870) no Hoare annotation was computed. [2020-08-22 16:56:13,793 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-08-22 16:56:13,793 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-08-22 16:56:13,793 INFO L268 CegarLoopResult]: For program point L677(lines 677 870) no Hoare annotation was computed. [2020-08-22 16:56:13,793 INFO L268 CegarLoopResult]: For program point L347(lines 347 870) no Hoare annotation was computed. [2020-08-22 16:56:13,793 INFO L268 CegarLoopResult]: For program point L414(lines 414 870) no Hoare annotation was computed. [2020-08-22 16:56:13,793 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,793 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,793 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,794 INFO L268 CegarLoopResult]: For program point L547(lines 547 870) no Hoare annotation was computed. [2020-08-22 16:56:13,794 INFO L268 CegarLoopResult]: For program point L217(lines 217 870) no Hoare annotation was computed. [2020-08-22 16:56:13,794 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-08-22 16:56:13,794 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-08-22 16:56:13,794 INFO L268 CegarLoopResult]: For program point L747(lines 747 870) no Hoare annotation was computed. [2020-08-22 16:56:13,794 INFO L268 CegarLoopResult]: For program point L615(lines 615 870) no Hoare annotation was computed. [2020-08-22 16:56:13,794 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,794 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,794 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-08-22 16:56:13,794 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,794 INFO L268 CegarLoopResult]: For program point L814(lines 814 870) no Hoare annotation was computed. [2020-08-22 16:56:13,794 INFO L268 CegarLoopResult]: For program point L484(lines 484 870) no Hoare annotation was computed. [2020-08-22 16:56:13,794 INFO L268 CegarLoopResult]: For program point L286(lines 286 870) no Hoare annotation was computed. [2020-08-22 16:56:13,794 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-08-22 16:56:13,794 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-08-22 16:56:13,795 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-08-22 16:56:13,795 INFO L268 CegarLoopResult]: For program point L683(lines 683 870) no Hoare annotation was computed. [2020-08-22 16:56:13,795 INFO L268 CegarLoopResult]: For program point L353(lines 353 870) no Hoare annotation was computed. [2020-08-22 16:56:13,795 INFO L268 CegarLoopResult]: For program point L552(lines 552 870) no Hoare annotation was computed. [2020-08-22 16:56:13,795 INFO L268 CegarLoopResult]: For program point L420(lines 420 870) no Hoare annotation was computed. [2020-08-22 16:56:13,795 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,795 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,795 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,795 INFO L268 CegarLoopResult]: For program point L223(lines 223 870) no Hoare annotation was computed. [2020-08-22 16:56:13,795 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-08-22 16:56:13,795 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-08-22 16:56:13,795 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-08-22 16:56:13,795 INFO L268 CegarLoopResult]: For program point L752(lines 752 870) no Hoare annotation was computed. [2020-08-22 16:56:13,795 INFO L268 CegarLoopResult]: For program point L819(lines 819 870) no Hoare annotation was computed. [2020-08-22 16:56:13,795 INFO L268 CegarLoopResult]: For program point L621(lines 621 870) no Hoare annotation was computed. [2020-08-22 16:56:13,796 INFO L268 CegarLoopResult]: For program point L555(lines 555 870) no Hoare annotation was computed. [2020-08-22 16:56:13,796 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,796 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,796 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,796 INFO L268 CegarLoopResult]: For program point L688(lines 688 870) no Hoare annotation was computed. [2020-08-22 16:56:13,796 INFO L268 CegarLoopResult]: For program point L490(lines 490 870) no Hoare annotation was computed. [2020-08-22 16:56:13,796 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-08-22 16:56:13,796 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-08-22 16:56:13,796 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-08-22 16:56:13,796 INFO L268 CegarLoopResult]: For program point L359(lines 359 870) no Hoare annotation was computed. [2020-08-22 16:56:13,796 INFO L268 CegarLoopResult]: For program point L293(lines 293 870) no Hoare annotation was computed. [2020-08-22 16:56:13,797 INFO L268 CegarLoopResult]: For program point L426(lines 426 870) no Hoare annotation was computed. [2020-08-22 16:56:13,797 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,797 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,797 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,797 INFO L268 CegarLoopResult]: For program point L229(lines 229 870) no Hoare annotation was computed. [2020-08-22 16:56:13,797 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-08-22 16:56:13,797 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-08-22 16:56:13,797 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-08-22 16:56:13,798 INFO L268 CegarLoopResult]: For program point L758(lines 758 870) no Hoare annotation was computed. [2020-08-22 16:56:13,798 INFO L268 CegarLoopResult]: For program point L626(lines 626 870) no Hoare annotation was computed. [2020-08-22 16:56:13,798 INFO L268 CegarLoopResult]: For program point L825(lines 825 870) no Hoare annotation was computed. [2020-08-22 16:56:13,798 INFO L268 CegarLoopResult]: For program point L561(lines 561 870) no Hoare annotation was computed. [2020-08-22 16:56:13,798 INFO L268 CegarLoopResult]: For program point L495(lines 495 870) no Hoare annotation was computed. [2020-08-22 16:56:13,798 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,798 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,798 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2020-08-22 16:56:13,799 INFO L268 CegarLoopResult]: For program point L694(lines 694 870) no Hoare annotation was computed. [2020-08-22 16:56:13,799 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-08-22 16:56:13,799 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-08-22 16:56:13,799 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-08-22 16:56:13,799 INFO L268 CegarLoopResult]: For program point L299(lines 299 870) no Hoare annotation was computed. [2020-08-22 16:56:13,799 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-22 16:56:13,799 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= (+ ~a12~0 49) 0) (= ~a15~0 8) (= ~a24~0 1) (= 7 ~a21~0)) [2020-08-22 16:56:13,799 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-22 16:56:13,800 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-22 16:56:13,800 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 874 890) the Hoare annotation is: (or (not (= 7 |old(~a21~0)|)) (not (= |old(~a24~0)| 1)) (and (= ~a15~0 8) (= ~a24~0 1) (= ~a12~0 |old(~a12~0)|) (= 7 ~a21~0)) (not (= 8 |old(~a15~0)|)) (not (<= (+ |old(~a12~0)| 49) 0))) [2020-08-22 16:56:13,800 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2020-08-22 16:56:13,800 INFO L264 CegarLoopResult]: At program point L888(line 888) the Hoare annotation is: (let ((.cse2 (<= 19 ~a12~0)) (.cse3 (<= 8 ~a15~0)) (.cse7 (<= ~a21~0 6)) (.cse5 (not (= ~a15~0 6))) (.cse4 (= 7 ~a21~0)) (.cse6 (<= ~a15~0 8)) (.cse0 (= ~a24~0 1)) (.cse1 (<= 10 ~a21~0))) (or (and .cse0 .cse1 .cse2) (not (= |old(~a24~0)| 1)) (and .cse0 (= ~a21~0 8) (= ~a15~0 9)) (and .cse0 (= ~a21~0 9) .cse2) (not (= 8 |old(~a15~0)|)) (and .cse3 .cse0 .cse4 .cse2) (and (<= (+ ~a12~0 49) 0) .cse5 .cse6 .cse7) (not (<= (+ |old(~a12~0)| 49) 0)) (and (<= ~a12~0 10) .cse5 .cse0 .cse6) (not (= 7 |old(~a21~0)|)) (and .cse5 .cse0 .cse6 .cse2) (and (<= 13 ~a12~0) .cse0 .cse6 (<= ~a12~0 73282) .cse7) (and .cse3 (<= 12849 ~a12~0) .cse0 .cse7) (and .cse0 .cse5 .cse6 .cse4) (and (= 5 ~a15~0) (= ~a21~0 6) .cse0) (and (<= 8 ~a21~0) .cse0 .cse6) (and (<= ~a12~0 11) .cse0 .cse1))) [2020-08-22 16:56:13,800 INFO L268 CegarLoopResult]: For program point L888-1(line 888) no Hoare annotation was computed. [2020-08-22 16:56:13,800 INFO L268 CegarLoopResult]: For program point L885(line 885) no Hoare annotation was computed. [2020-08-22 16:56:13,801 INFO L264 CegarLoopResult]: At program point L880-2(lines 880 889) the Hoare annotation is: (let ((.cse2 (<= 19 ~a12~0)) (.cse3 (<= 8 ~a15~0)) (.cse7 (<= ~a21~0 6)) (.cse5 (not (= ~a15~0 6))) (.cse4 (= 7 ~a21~0)) (.cse6 (<= ~a15~0 8)) (.cse0 (= ~a24~0 1)) (.cse1 (<= 10 ~a21~0))) (or (and .cse0 .cse1 .cse2) (not (= |old(~a24~0)| 1)) (and .cse0 (= ~a21~0 8) (= ~a15~0 9)) (and .cse0 (= ~a21~0 9) .cse2) (not (= 8 |old(~a15~0)|)) (and .cse3 .cse0 .cse4 .cse2) (and (<= (+ ~a12~0 49) 0) .cse5 .cse6 .cse7) (not (<= (+ |old(~a12~0)| 49) 0)) (and (<= ~a12~0 10) .cse5 .cse0 .cse6) (not (= 7 |old(~a21~0)|)) (and .cse5 .cse0 .cse6 .cse2) (and (<= 13 ~a12~0) .cse0 .cse6 (<= ~a12~0 73282) .cse7) (and .cse3 (<= 12849 ~a12~0) .cse0 .cse7) (and .cse0 .cse5 .cse6 .cse4) (and (= 5 ~a15~0) (= ~a21~0 6) .cse0) (and (<= 8 ~a21~0) .cse0 .cse6) (and (<= ~a12~0 11) .cse0 .cse1))) [2020-08-22 16:56:13,801 INFO L268 CegarLoopResult]: For program point L880-3(lines 874 890) no Hoare annotation was computed. [2020-08-22 16:56:13,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 04:56:13 BoogieIcfgContainer [2020-08-22 16:56:13,840 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 16:56:13,842 INFO L168 Benchmark]: Toolchain (without parser) took 131086.68 ms. Allocated memory was 147.3 MB in the beginning and 2.3 GB in the end (delta: 2.1 GB). Free memory was 101.3 MB in the beginning and 909.5 MB in the end (delta: -808.1 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2020-08-22 16:56:13,843 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 147.3 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-08-22 16:56:13,844 INFO L168 Benchmark]: CACSL2BoogieTranslator took 920.11 ms. Allocated memory was 147.3 MB in the beginning and 204.5 MB in the end (delta: 57.1 MB). Free memory was 101.1 MB in the beginning and 161.4 MB in the end (delta: -60.3 MB). Peak memory consumption was 30.0 MB. Max. memory is 7.1 GB. [2020-08-22 16:56:13,845 INFO L168 Benchmark]: Boogie Preprocessor took 121.14 ms. Allocated memory is still 204.5 MB. Free memory was 161.4 MB in the beginning and 156.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 7.1 GB. [2020-08-22 16:56:13,845 INFO L168 Benchmark]: RCFGBuilder took 1819.38 ms. Allocated memory was 204.5 MB in the beginning and 237.5 MB in the end (delta: 33.0 MB). Free memory was 156.0 MB in the beginning and 148.0 MB in the end (delta: 8.0 MB). Peak memory consumption was 72.2 MB. Max. memory is 7.1 GB. [2020-08-22 16:56:13,846 INFO L168 Benchmark]: TraceAbstraction took 128218.60 ms. Allocated memory was 237.5 MB in the beginning and 2.3 GB in the end (delta: 2.0 GB). Free memory was 148.0 MB in the beginning and 909.5 MB in the end (delta: -761.4 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2020-08-22 16:56:13,853 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 147.3 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 920.11 ms. Allocated memory was 147.3 MB in the beginning and 204.5 MB in the end (delta: 57.1 MB). Free memory was 101.1 MB in the beginning and 161.4 MB in the end (delta: -60.3 MB). Peak memory consumption was 30.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 121.14 ms. Allocated memory is still 204.5 MB. Free memory was 161.4 MB in the beginning and 156.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1819.38 ms. Allocated memory was 204.5 MB in the beginning and 237.5 MB in the end (delta: 33.0 MB). Free memory was 156.0 MB in the beginning and 148.0 MB in the end (delta: 8.0 MB). Peak memory consumption was 72.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 128218.60 ms. Allocated memory was 237.5 MB in the beginning and 2.3 GB in the end (delta: 2.0 GB). Free memory was 148.0 MB in the beginning and 909.5 MB in the end (delta: -761.4 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 127]: 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: 880]: Loop Invariant Derived loop invariant: (((((((((((((((((a24 == 1 && 10 <= a21) && 19 <= a12) || !(\old(a24) == 1)) || ((a24 == 1 && a21 == 8) && a15 == 9)) || ((a24 == 1 && a21 == 9) && 19 <= a12)) || !(8 == \old(a15))) || (((8 <= a15 && a24 == 1) && 7 == a21) && 19 <= a12)) || (((a12 + 49 <= 0 && !(a15 == 6)) && a15 <= 8) && a21 <= 6)) || !(\old(a12) + 49 <= 0)) || (((a12 <= 10 && !(a15 == 6)) && a24 == 1) && a15 <= 8)) || !(7 == \old(a21))) || (((!(a15 == 6) && a24 == 1) && a15 <= 8) && 19 <= a12)) || ((((13 <= a12 && a24 == 1) && a15 <= 8) && a12 <= 73282) && a21 <= 6)) || (((8 <= a15 && 12849 <= a12) && a24 == 1) && a21 <= 6)) || (((a24 == 1 && !(a15 == 6)) && a15 <= 8) && 7 == a21)) || ((5 == a15 && a21 == 6) && a24 == 1)) || ((8 <= a21 && a24 == 1) && a15 <= 8)) || ((a12 <= 11 && a24 == 1) && 10 <= a21) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 254 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 113.0s, OverallIterations: 17, TraceHistogramMax: 14, AutomataDifference: 79.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 15.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 945 SDtfs, 38288 SDslu, 1724 SDs, 0 SdLazy, 43220 SolverSat, 5773 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 46.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11415 GetRequests, 10901 SyntacticMatches, 10 SemanticMatches, 504 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 7516 ImplicationChecksByTransitivity, 16.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7632occurred in iteration=16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 17 MinimizatonAttempts, 8757 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 398 PreInvPairs, 548 NumberOfFragments, 855 HoareAnnotationTreeSize, 398 FomulaSimplifications, 56858994 FormulaSimplificationTreeSizeReduction, 2.9s HoareSimplificationTime, 7 FomulaSimplificationsInter, 16644742 FormulaSimplificationTreeSizeReductionInter, 11.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 3.8s SatisfiabilityAnalysisTime, 14.7s InterpolantComputationTime, 19800 NumberOfCodeBlocks, 19800 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 19770 ConstructedInterpolants, 3 QuantifiedInterpolants, 35604955 SizeOfPredicates, 10 NumberOfNonLiveVariables, 13264 ConjunctsInSsa, 113 ConjunctsInUnsatCore, 30 InterpolantComputations, 5 PerfectInterpolantSequences, 54794/56861 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...