/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/Problem02_label22.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 11:25:10,582 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 11:25:10,585 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 11:25:10,596 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 11:25:10,597 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 11:25:10,598 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 11:25:10,599 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 11:25:10,600 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 11:25:10,602 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 11:25:10,603 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 11:25:10,604 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 11:25:10,605 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 11:25:10,605 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 11:25:10,606 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 11:25:10,607 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 11:25:10,608 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 11:25:10,609 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 11:25:10,610 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 11:25:10,612 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 11:25:10,614 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 11:25:10,615 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 11:25:10,617 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 11:25:10,618 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 11:25:10,618 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 11:25:10,621 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-07 11:25:10,628 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 11:25:10,629 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 11:25:10,630 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 11:25:10,631 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-07 11:25:10,646 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 11:25:10,646 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 11:25:10,647 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-07 11:25:10,647 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-07 11:25:10,648 INFO L138 SettingsManager]: * Use SBE=true [2020-07-07 11:25:10,648 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 11:25:10,648 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 11:25:10,648 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 11:25:10,648 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 11:25:10,648 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 11:25:10,649 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 11:25:10,649 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 11:25:10,649 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 11:25:10,649 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 11:25:10,649 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 11:25:10,650 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 11:25:10,650 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 11:25:10,650 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 11:25:10,650 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-07 11:25:10,650 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 11:25:10,651 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 11:25:10,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 11:25:10,651 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 11:25:10,651 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-07 11:25:10,652 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-07 11:25:10,652 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-07 11:25:10,652 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-07 11:25:10,652 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 11:25:10,652 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-07 11:25:10,652 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-07 11:25:10,924 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 11:25:10,941 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 11:25:10,945 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 11:25:10,947 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 11:25:10,947 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 11:25:10,948 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label22.c [2020-07-07 11:25:11,023 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ce3a3159/1aa8f60ae64d4087b94f52075e93773f/FLAG386807b89 [2020-07-07 11:25:11,665 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 11:25:11,666 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label22.c [2020-07-07 11:25:11,690 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ce3a3159/1aa8f60ae64d4087b94f52075e93773f/FLAG386807b89 [2020-07-07 11:25:11,895 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ce3a3159/1aa8f60ae64d4087b94f52075e93773f [2020-07-07 11:25:11,903 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 11:25:11,905 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 11:25:11,906 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 11:25:11,906 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 11:25:11,910 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 11:25:11,911 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 11:25:11" (1/1) ... [2020-07-07 11:25:11,914 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@440771f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:25:11, skipping insertion in model container [2020-07-07 11:25:11,914 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 11:25:11" (1/1) ... [2020-07-07 11:25:11,922 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 11:25:11,972 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 11:25:12,447 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 11:25:12,462 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 11:25:12,714 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 11:25:12,732 INFO L208 MainTranslator]: Completed translation [2020-07-07 11:25:12,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:25:12 WrapperNode [2020-07-07 11:25:12,733 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 11:25:12,733 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 11:25:12,734 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 11:25:12,734 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 11:25:12,749 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:25:12" (1/1) ... [2020-07-07 11:25:12,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:25:12" (1/1) ... [2020-07-07 11:25:12,794 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:25:12" (1/1) ... [2020-07-07 11:25:12,794 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:25:12" (1/1) ... [2020-07-07 11:25:12,872 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:25:12" (1/1) ... [2020-07-07 11:25:12,895 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:25:12" (1/1) ... [2020-07-07 11:25:12,900 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:25:12" (1/1) ... [2020-07-07 11:25:12,907 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 11:25:12,907 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 11:25:12,907 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 11:25:12,908 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 11:25:12,909 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:25:12" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 11:25:12,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 11:25:12,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 11:25:12,984 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-07 11:25:12,984 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 11:25:12,984 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-07 11:25:12,985 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 11:25:12,985 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 11:25:12,986 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-07 11:25:12,986 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 11:25:12,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 11:25:12,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 11:25:14,177 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 11:25:14,178 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-07 11:25:14,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 11:25:14 BoogieIcfgContainer [2020-07-07 11:25:14,185 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 11:25:14,186 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 11:25:14,187 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 11:25:14,190 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 11:25:14,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 11:25:11" (1/3) ... [2020-07-07 11:25:14,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2402a006 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 11:25:14, skipping insertion in model container [2020-07-07 11:25:14,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:25:12" (2/3) ... [2020-07-07 11:25:14,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2402a006 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 11:25:14, skipping insertion in model container [2020-07-07 11:25:14,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 11:25:14" (3/3) ... [2020-07-07 11:25:14,194 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label22.c [2020-07-07 11:25:14,206 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-07 11:25:14,214 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 11:25:14,228 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 11:25:14,254 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 11:25:14,254 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 11:25:14,254 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-07 11:25:14,254 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 11:25:14,255 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 11:25:14,255 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 11:25:14,255 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 11:25:14,255 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 11:25:14,279 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-07 11:25:14,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-07-07 11:25:14,291 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:25:14,293 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:25:14,293 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:25:14,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:25:14,300 INFO L82 PathProgramCache]: Analyzing trace with hash -1125290487, now seen corresponding path program 1 times [2020-07-07 11:25:14,308 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:25:14,309 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880340163] [2020-07-07 11:25:14,309 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:25:14,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:14,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:14,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:25:14,888 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880340163] [2020-07-07 11:25:14,889 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:25:14,890 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 11:25:14,891 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861536570] [2020-07-07 11:25:14,897 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 11:25:14,898 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:25:14,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 11:25:14,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-07 11:25:14,916 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 5 states. [2020-07-07 11:25:16,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:25:16,600 INFO L93 Difference]: Finished difference Result 627 states and 1073 transitions. [2020-07-07 11:25:16,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 11:25:16,603 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 103 [2020-07-07 11:25:16,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:25:16,621 INFO L225 Difference]: With dead ends: 627 [2020-07-07 11:25:16,621 INFO L226 Difference]: Without dead ends: 327 [2020-07-07 11:25:16,630 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-07-07 11:25:16,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-07-07 11:25:16,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 319. [2020-07-07 11:25:16,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-07-07 11:25:16,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 480 transitions. [2020-07-07 11:25:16,728 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 480 transitions. Word has length 103 [2020-07-07 11:25:16,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:25:16,729 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 480 transitions. [2020-07-07 11:25:16,729 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 11:25:16,729 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 480 transitions. [2020-07-07 11:25:16,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-07-07 11:25:16,734 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:25:16,734 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:25:16,735 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 11:25:16,735 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:25:16,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:25:16,735 INFO L82 PathProgramCache]: Analyzing trace with hash 1652959172, now seen corresponding path program 1 times [2020-07-07 11:25:16,736 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:25:16,736 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409131072] [2020-07-07 11:25:16,736 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:25:16,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:16,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:16,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:16,914 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:25:16,915 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409131072] [2020-07-07 11:25:16,915 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:25:16,915 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-07 11:25:16,915 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712454857] [2020-07-07 11:25:16,917 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 11:25:16,918 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:25:16,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 11:25:16,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-07-07 11:25:16,918 INFO L87 Difference]: Start difference. First operand 319 states and 480 transitions. Second operand 9 states. [2020-07-07 11:25:19,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:25:19,070 INFO L93 Difference]: Finished difference Result 1102 states and 1690 transitions. [2020-07-07 11:25:19,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-07 11:25:19,071 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 118 [2020-07-07 11:25:19,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:25:19,083 INFO L225 Difference]: With dead ends: 1102 [2020-07-07 11:25:19,083 INFO L226 Difference]: Without dead ends: 789 [2020-07-07 11:25:19,087 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2020-07-07 11:25:19,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2020-07-07 11:25:19,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 772. [2020-07-07 11:25:19,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 772 states. [2020-07-07 11:25:19,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 772 states to 772 states and 1127 transitions. [2020-07-07 11:25:19,185 INFO L78 Accepts]: Start accepts. Automaton has 772 states and 1127 transitions. Word has length 118 [2020-07-07 11:25:19,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:25:19,188 INFO L479 AbstractCegarLoop]: Abstraction has 772 states and 1127 transitions. [2020-07-07 11:25:19,188 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 11:25:19,188 INFO L276 IsEmpty]: Start isEmpty. Operand 772 states and 1127 transitions. [2020-07-07 11:25:19,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-07-07 11:25:19,199 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:25:19,199 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:25:19,200 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 11:25:19,200 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:25:19,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:25:19,201 INFO L82 PathProgramCache]: Analyzing trace with hash 1223232159, now seen corresponding path program 1 times [2020-07-07 11:25:19,201 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:25:19,201 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814549058] [2020-07-07 11:25:19,202 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:25:19,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:19,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:19,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:19,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:19,476 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-07 11:25:19,477 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814549058] [2020-07-07 11:25:19,477 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1299922056] [2020-07-07 11:25:19,477 INFO L94 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 [2020-07-07 11:25:19,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:19,573 INFO L264 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-07 11:25:19,584 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:25:19,664 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 23 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:25:19,665 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 11:25:19,665 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5] total 12 [2020-07-07 11:25:19,666 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017219909] [2020-07-07 11:25:19,667 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-07 11:25:19,667 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:25:19,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-07 11:25:19,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-07-07 11:25:19,668 INFO L87 Difference]: Start difference. First operand 772 states and 1127 transitions. Second operand 12 states. [2020-07-07 11:25:21,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:25:21,268 INFO L93 Difference]: Finished difference Result 1395 states and 2061 transitions. [2020-07-07 11:25:21,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-07 11:25:21,269 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 126 [2020-07-07 11:25:21,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:25:21,273 INFO L225 Difference]: With dead ends: 1395 [2020-07-07 11:25:21,273 INFO L226 Difference]: Without dead ends: 629 [2020-07-07 11:25:21,276 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2020-07-07 11:25:21,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2020-07-07 11:25:21,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 611. [2020-07-07 11:25:21,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 611 states. [2020-07-07 11:25:21,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 865 transitions. [2020-07-07 11:25:21,304 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 865 transitions. Word has length 126 [2020-07-07 11:25:21,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:25:21,305 INFO L479 AbstractCegarLoop]: Abstraction has 611 states and 865 transitions. [2020-07-07 11:25:21,305 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-07 11:25:21,305 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 865 transitions. [2020-07-07 11:25:21,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-07-07 11:25:21,308 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:25:21,308 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:25:21,521 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-07-07 11:25:21,522 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:25:21,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:25:21,523 INFO L82 PathProgramCache]: Analyzing trace with hash 553113585, now seen corresponding path program 1 times [2020-07-07 11:25:21,523 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:25:21,524 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933932827] [2020-07-07 11:25:21,524 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:25:21,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:21,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:21,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:21,730 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:25:21,731 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933932827] [2020-07-07 11:25:21,731 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:25:21,731 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-07 11:25:21,732 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086280162] [2020-07-07 11:25:21,733 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 11:25:21,734 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:25:21,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 11:25:21,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-07-07 11:25:21,735 INFO L87 Difference]: Start difference. First operand 611 states and 865 transitions. Second operand 9 states. [2020-07-07 11:25:23,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:25:23,626 INFO L93 Difference]: Finished difference Result 2306 states and 3400 transitions. [2020-07-07 11:25:23,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-07 11:25:23,627 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 125 [2020-07-07 11:25:23,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:25:23,639 INFO L225 Difference]: With dead ends: 2306 [2020-07-07 11:25:23,640 INFO L226 Difference]: Without dead ends: 1701 [2020-07-07 11:25:23,643 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2020-07-07 11:25:23,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1701 states. [2020-07-07 11:25:23,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1701 to 1511. [2020-07-07 11:25:23,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1511 states. [2020-07-07 11:25:23,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1511 states to 1511 states and 2087 transitions. [2020-07-07 11:25:23,755 INFO L78 Accepts]: Start accepts. Automaton has 1511 states and 2087 transitions. Word has length 125 [2020-07-07 11:25:23,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:25:23,756 INFO L479 AbstractCegarLoop]: Abstraction has 1511 states and 2087 transitions. [2020-07-07 11:25:23,756 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 11:25:23,756 INFO L276 IsEmpty]: Start isEmpty. Operand 1511 states and 2087 transitions. [2020-07-07 11:25:23,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-07 11:25:23,765 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:25:23,765 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:25:23,766 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 11:25:23,766 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:25:23,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:25:23,766 INFO L82 PathProgramCache]: Analyzing trace with hash 299140729, now seen corresponding path program 1 times [2020-07-07 11:25:23,767 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:25:23,767 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264063958] [2020-07-07 11:25:23,767 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:25:23,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:23,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:23,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:24,063 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:25:24,063 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264063958] [2020-07-07 11:25:24,064 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1344594610] [2020-07-07 11:25:24,064 INFO L94 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 [2020-07-07 11:25:24,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:24,145 INFO L264 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-07 11:25:24,150 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:25:24,183 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:25:24,184 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-07 11:25:24,184 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2020-07-07 11:25:24,185 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301144155] [2020-07-07 11:25:24,185 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 11:25:24,185 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:25:24,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 11:25:24,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-07-07 11:25:24,186 INFO L87 Difference]: Start difference. First operand 1511 states and 2087 transitions. Second operand 3 states. [2020-07-07 11:25:24,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:25:24,745 INFO L93 Difference]: Finished difference Result 4176 states and 5902 transitions. [2020-07-07 11:25:24,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 11:25:24,746 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 129 [2020-07-07 11:25:24,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:25:24,759 INFO L225 Difference]: With dead ends: 4176 [2020-07-07 11:25:24,759 INFO L226 Difference]: Without dead ends: 2671 [2020-07-07 11:25:24,763 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-07-07 11:25:24,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2671 states. [2020-07-07 11:25:24,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2671 to 2383. [2020-07-07 11:25:24,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2383 states. [2020-07-07 11:25:24,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2383 states to 2383 states and 3049 transitions. [2020-07-07 11:25:24,839 INFO L78 Accepts]: Start accepts. Automaton has 2383 states and 3049 transitions. Word has length 129 [2020-07-07 11:25:24,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:25:24,840 INFO L479 AbstractCegarLoop]: Abstraction has 2383 states and 3049 transitions. [2020-07-07 11:25:24,840 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 11:25:24,840 INFO L276 IsEmpty]: Start isEmpty. Operand 2383 states and 3049 transitions. [2020-07-07 11:25:24,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-07-07 11:25:24,846 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:25:24,847 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:25:25,059 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:25:25,060 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:25:25,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:25:25,061 INFO L82 PathProgramCache]: Analyzing trace with hash -1054792408, now seen corresponding path program 1 times [2020-07-07 11:25:25,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:25:25,062 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626705724] [2020-07-07 11:25:25,063 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:25:25,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:25,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:25,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:25,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:25,327 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 27 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-07-07 11:25:25,327 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626705724] [2020-07-07 11:25:25,329 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [508735816] [2020-07-07 11:25:25,329 INFO L94 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 [2020-07-07 11:25:25,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:25,434 INFO L264 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-07 11:25:25,452 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:25:25,498 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-07 11:25:25,499 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-07 11:25:25,499 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2020-07-07 11:25:25,508 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011074065] [2020-07-07 11:25:25,509 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 11:25:25,510 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:25:25,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 11:25:25,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-07-07 11:25:25,511 INFO L87 Difference]: Start difference. First operand 2383 states and 3049 transitions. Second operand 3 states. [2020-07-07 11:25:26,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:25:26,084 INFO L93 Difference]: Finished difference Result 5638 states and 7437 transitions. [2020-07-07 11:25:26,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 11:25:26,084 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 138 [2020-07-07 11:25:26,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:25:26,101 INFO L225 Difference]: With dead ends: 5638 [2020-07-07 11:25:26,101 INFO L226 Difference]: Without dead ends: 3261 [2020-07-07 11:25:26,108 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-07-07 11:25:26,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3261 states. [2020-07-07 11:25:26,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3261 to 3261. [2020-07-07 11:25:26,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3261 states. [2020-07-07 11:25:26,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3261 states to 3261 states and 4108 transitions. [2020-07-07 11:25:26,255 INFO L78 Accepts]: Start accepts. Automaton has 3261 states and 4108 transitions. Word has length 138 [2020-07-07 11:25:26,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:25:26,255 INFO L479 AbstractCegarLoop]: Abstraction has 3261 states and 4108 transitions. [2020-07-07 11:25:26,255 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 11:25:26,256 INFO L276 IsEmpty]: Start isEmpty. Operand 3261 states and 4108 transitions. [2020-07-07 11:25:26,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-07-07 11:25:26,264 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:25:26,264 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:25:26,477 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:25:26,478 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:25:26,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:25:26,478 INFO L82 PathProgramCache]: Analyzing trace with hash 434774726, now seen corresponding path program 1 times [2020-07-07 11:25:26,479 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:25:26,479 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123482026] [2020-07-07 11:25:26,479 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:25:26,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:26,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:26,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:26,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:26,658 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 56 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-07 11:25:26,659 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123482026] [2020-07-07 11:25:26,659 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713233667] [2020-07-07 11:25:26,659 INFO L94 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 [2020-07-07 11:25:26,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:26,748 INFO L264 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-07 11:25:26,751 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:25:26,807 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:25:26,807 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 11:25:26,808 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5] total 13 [2020-07-07 11:25:26,808 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539461102] [2020-07-07 11:25:26,809 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-07 11:25:26,809 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:25:26,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-07 11:25:26,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-07-07 11:25:26,810 INFO L87 Difference]: Start difference. First operand 3261 states and 4108 transitions. Second operand 13 states. [2020-07-07 11:25:29,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:25:29,045 INFO L93 Difference]: Finished difference Result 7204 states and 9365 transitions. [2020-07-07 11:25:29,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-07-07 11:25:29,046 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 154 [2020-07-07 11:25:29,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:25:29,065 INFO L225 Difference]: With dead ends: 7204 [2020-07-07 11:25:29,065 INFO L226 Difference]: Without dead ends: 3949 [2020-07-07 11:25:29,074 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=202, Invalid=554, Unknown=0, NotChecked=0, Total=756 [2020-07-07 11:25:29,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3949 states. [2020-07-07 11:25:29,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3949 to 3197. [2020-07-07 11:25:29,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3197 states. [2020-07-07 11:25:29,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3197 states to 3197 states and 4111 transitions. [2020-07-07 11:25:29,170 INFO L78 Accepts]: Start accepts. Automaton has 3197 states and 4111 transitions. Word has length 154 [2020-07-07 11:25:29,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:25:29,171 INFO L479 AbstractCegarLoop]: Abstraction has 3197 states and 4111 transitions. [2020-07-07 11:25:29,171 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-07 11:25:29,171 INFO L276 IsEmpty]: Start isEmpty. Operand 3197 states and 4111 transitions. [2020-07-07 11:25:29,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-07-07 11:25:29,180 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:25:29,181 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:25:29,394 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:25:29,395 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:25:29,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:25:29,396 INFO L82 PathProgramCache]: Analyzing trace with hash -144950901, now seen corresponding path program 1 times [2020-07-07 11:25:29,396 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:25:29,396 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40714265] [2020-07-07 11:25:29,396 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:25:29,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:29,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:29,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:29,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:29,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:29,664 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 57 proven. 7 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-07-07 11:25:29,664 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40714265] [2020-07-07 11:25:29,665 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [457290464] [2020-07-07 11:25:29,665 INFO L94 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 [2020-07-07 11:25:29,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:25:29,802 INFO L264 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-07 11:25:29,812 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:25:29,889 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-07-07 11:25:29,889 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-07 11:25:29,889 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2020-07-07 11:25:29,890 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724498167] [2020-07-07 11:25:29,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 11:25:29,891 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:25:29,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 11:25:29,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-07 11:25:29,891 INFO L87 Difference]: Start difference. First operand 3197 states and 4111 transitions. Second operand 3 states. [2020-07-07 11:25:30,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:25:30,608 INFO L93 Difference]: Finished difference Result 6388 states and 8262 transitions. [2020-07-07 11:25:30,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 11:25:30,609 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 162 [2020-07-07 11:25:30,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:25:30,610 INFO L225 Difference]: With dead ends: 6388 [2020-07-07 11:25:30,610 INFO L226 Difference]: Without dead ends: 0 [2020-07-07 11:25:30,629 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-07 11:25:30,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-07 11:25:30,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-07 11:25:30,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-07 11:25:30,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-07 11:25:30,631 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 162 [2020-07-07 11:25:30,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:25:30,631 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-07 11:25:30,632 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 11:25:30,632 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-07 11:25:30,632 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-07 11:25:30,847 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:25:30,851 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-07 11:25:31,223 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 105 [2020-07-07 11:25:31,340 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 105 [2020-07-07 11:25:31,792 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 34 [2020-07-07 11:25:31,994 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 26 [2020-07-07 11:25:32,143 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 26 [2020-07-07 11:25:32,146 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-07 11:25:32,147 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a11~0 |old(~a11~0)|) (= ~z~0 |old(~z~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~v~0 |old(~v~0)|) (= ~a17~0 |old(~a17~0)|) (= ~y~0 |old(~y~0)|) (= ~f~0 |old(~f~0)|) (= ~a~0 |old(~a~0)|) (= ~x~0 |old(~x~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a28~0 |old(~a28~0)|) (= ~a25~0 |old(~a25~0)|) (= ~d~0 |old(~d~0)|)) [2020-07-07 11:25:32,147 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-07 11:25:32,147 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,148 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,148 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,148 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,148 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,148 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-07 11:25:32,148 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-07 11:25:32,148 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-07 11:25:32,148 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-07 11:25:32,149 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-07 11:25:32,149 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-07 11:25:32,149 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-07 11:25:32,149 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-07 11:25:32,154 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-07 11:25:32,154 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-07 11:25:32,154 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-07 11:25:32,154 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-07 11:25:32,154 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-07 11:25:32,154 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,154 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,155 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,155 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,155 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-07 11:25:32,155 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,155 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-07 11:25:32,155 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-07 11:25:32,155 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-07 11:25:32,155 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-07 11:25:32,156 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-07 11:25:32,156 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-07 11:25:32,156 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-07 11:25:32,156 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-07 11:25:32,156 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-07 11:25:32,156 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-07 11:25:32,158 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-07 11:25:32,159 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-07 11:25:32,159 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-07 11:25:32,159 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-07 11:25:32,159 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-07 11:25:32,159 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,159 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,159 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,159 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,159 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,160 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 463) no Hoare annotation was computed. [2020-07-07 11:25:32,160 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-07 11:25:32,160 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-07 11:25:32,160 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-07 11:25:32,160 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-07 11:25:32,160 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-07 11:25:32,160 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-07 11:25:32,160 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-07 11:25:32,161 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-07 11:25:32,161 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-07 11:25:32,161 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-07 11:25:32,161 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-07 11:25:32,161 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,166 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,166 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,166 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,166 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,166 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-07 11:25:32,166 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-07 11:25:32,166 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-07 11:25:32,167 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-07 11:25:32,167 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-07 11:25:32,167 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-07 11:25:32,167 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-07 11:25:32,167 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-07 11:25:32,167 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-07 11:25:32,167 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-07 11:25:32,167 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-07 11:25:32,167 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-07 11:25:32,168 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-07 11:25:32,168 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,168 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,168 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,168 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,168 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,168 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-07 11:25:32,168 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-07 11:25:32,168 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-07 11:25:32,169 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-07 11:25:32,169 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-07 11:25:32,169 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-07 11:25:32,169 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-07 11:25:32,169 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-07 11:25:32,169 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-07 11:25:32,169 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-07 11:25:32,169 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-07 11:25:32,170 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-07 11:25:32,170 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-07 11:25:32,170 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-07 11:25:32,170 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-07 11:25:32,170 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-07 11:25:32,172 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,172 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,173 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,173 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,173 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-07 11:25:32,173 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,173 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-07 11:25:32,173 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,173 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-07 11:25:32,174 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-07 11:25:32,174 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-07 11:25:32,174 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,174 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,174 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-07 11:25:32,174 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-07 11:25:32,174 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-07 11:25:32,174 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-07 11:25:32,175 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-07 11:25:32,175 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-07 11:25:32,175 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-07 11:25:32,175 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-07 11:25:32,175 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-07 11:25:32,175 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-07 11:25:32,175 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-07 11:25:32,175 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,175 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,176 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,176 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,176 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,176 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,176 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-07 11:25:32,176 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-07 11:25:32,176 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-07 11:25:32,176 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-07 11:25:32,177 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-07 11:25:32,177 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-07 11:25:32,177 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-07 11:25:32,177 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-07 11:25:32,177 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-07 11:25:32,177 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-07 11:25:32,177 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-07 11:25:32,177 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,178 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,178 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,178 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,178 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,178 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,178 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-07 11:25:32,178 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-07 11:25:32,178 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-07 11:25:32,179 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-07 11:25:32,179 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-07 11:25:32,179 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-07 11:25:32,179 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-07 11:25:32,179 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-07 11:25:32,179 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-07 11:25:32,179 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-07 11:25:32,179 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-07 11:25:32,179 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-07 11:25:32,180 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-07 11:25:32,180 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-07 11:25:32,180 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,180 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,180 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,180 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse1 (= ~a11~0 |old(~a11~0)|)) (.cse2 (= ~a19~0 |old(~a19~0)|)) (.cse3 (= ~a28~0 |old(~a28~0)|)) (.cse4 (= ~a25~0 |old(~a25~0)|))) (let ((.cse5 (and .cse1 (= ~a17~0 |old(~a17~0)|) .cse2 .cse3 .cse4)) (.cse0 (not (<= |old(~a17~0)| 8)))) (and (or (not (<= 8 |old(~a17~0)|)) .cse0 (and .cse1 .cse2 .cse3 (= 8 ~a17~0) .cse4)) (or (not (<= |old(~a28~0)| 7)) .cse5 .cse0) (or (not (<= 9 |old(~a28~0)|)) .cse5 .cse0)))) [2020-07-07 11:25:32,181 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,181 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,181 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,181 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-07 11:25:32,181 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-07 11:25:32,181 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-07 11:25:32,181 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-07 11:25:32,181 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-07 11:25:32,181 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-07 11:25:32,182 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-07 11:25:32,182 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-07 11:25:32,182 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-07 11:25:32,182 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-07 11:25:32,182 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-07 11:25:32,182 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-07 11:25:32,182 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-07 11:25:32,182 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,182 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,183 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,183 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,183 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,183 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,183 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-07 11:25:32,183 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-07 11:25:32,183 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-07 11:25:32,183 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-07 11:25:32,183 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-07 11:25:32,184 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-07 11:25:32,184 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-07 11:25:32,184 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-07 11:25:32,184 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-07 11:25:32,184 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-07 11:25:32,184 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-07 11:25:32,184 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-07 11:25:32,184 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-07 11:25:32,184 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-07 11:25:32,184 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-07 11:25:32,185 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-07 11:25:32,185 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,185 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,185 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,185 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,185 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-07 11:25:32,185 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-07 11:25:32,185 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-07 11:25:32,186 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-07 11:25:32,186 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-07 11:25:32,186 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-07 11:25:32,186 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-07 11:25:32,186 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-07 11:25:32,186 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-07 11:25:32,186 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-07 11:25:32,186 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-07 11:25:32,187 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-07 11:25:32,187 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-07 11:25:32,187 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-07 11:25:32,187 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-07 11:25:32,187 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-07 11:25:32,187 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-07 11:25:32,187 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-07 11:25:32,187 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-07 11:25:32,187 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-07 11:25:32,188 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-07 11:25:32,188 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a11~0 0) (<= ~a25~0 0) (= 8 ~a17~0) (<= ~a28~0 7)) [2020-07-07 11:25:32,188 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-07 11:25:32,188 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-07 11:25:32,188 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (<= |old(~a28~0)| 7)) (not (<= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (not (<= |old(~a17~0)| 8)) (and (= ~a11~0 |old(~a11~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a28~0 |old(~a28~0)|) (= 8 ~a17~0) (= ~a25~0 |old(~a25~0)|)) (not (<= |old(~a11~0)| 0))) [2020-07-07 11:25:32,188 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (or (and (<= ~a17~0 8) (<= 9 ~a28~0)) (not (= 8 |old(~a17~0)|)) (and (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 7)) (not (<= |old(~a28~0)| 7)) (not (<= |old(~a25~0)| 0)) (not (<= |old(~a11~0)| 0)) (= 8 ~a17~0)) [2020-07-07 11:25:32,188 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-07 11:25:32,188 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-07 11:25:32,189 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (or (and (<= ~a17~0 8) (<= 9 ~a28~0)) (not (= 8 |old(~a17~0)|)) (and (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 7)) (not (<= |old(~a28~0)| 7)) (not (<= |old(~a25~0)| 0)) (not (<= |old(~a11~0)| 0)) (= 8 ~a17~0)) [2020-07-07 11:25:32,189 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-07 11:25:32,189 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-07 11:25:32,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 11:25:32 BoogieIcfgContainer [2020-07-07 11:25:32,219 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 11:25:32,222 INFO L168 Benchmark]: Toolchain (without parser) took 20316.64 ms. Allocated memory was 144.7 MB in the beginning and 504.4 MB in the end (delta: 359.7 MB). Free memory was 99.9 MB in the beginning and 341.0 MB in the end (delta: -241.2 MB). Peak memory consumption was 344.1 MB. Max. memory is 7.1 GB. [2020-07-07 11:25:32,223 INFO L168 Benchmark]: CDTParser took 1.21 ms. Allocated memory is still 144.7 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-07 11:25:32,230 INFO L168 Benchmark]: CACSL2BoogieTranslator took 827.15 ms. Allocated memory was 144.7 MB in the beginning and 204.5 MB in the end (delta: 59.8 MB). Free memory was 99.7 MB in the beginning and 171.5 MB in the end (delta: -71.8 MB). Peak memory consumption was 30.9 MB. Max. memory is 7.1 GB. [2020-07-07 11:25:32,231 INFO L168 Benchmark]: Boogie Preprocessor took 173.57 ms. Allocated memory is still 204.5 MB. Free memory was 171.5 MB in the beginning and 166.6 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-07-07 11:25:32,232 INFO L168 Benchmark]: RCFGBuilder took 1277.87 ms. Allocated memory was 204.5 MB in the beginning and 236.5 MB in the end (delta: 32.0 MB). Free memory was 166.6 MB in the beginning and 182.3 MB in the end (delta: -15.8 MB). Peak memory consumption was 84.5 MB. Max. memory is 7.1 GB. [2020-07-07 11:25:32,234 INFO L168 Benchmark]: TraceAbstraction took 18033.17 ms. Allocated memory was 236.5 MB in the beginning and 504.4 MB in the end (delta: 267.9 MB). Free memory was 182.3 MB in the beginning and 341.0 MB in the end (delta: -158.7 MB). Peak memory consumption was 334.8 MB. Max. memory is 7.1 GB. [2020-07-07 11:25:32,244 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.21 ms. Allocated memory is still 144.7 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 827.15 ms. Allocated memory was 144.7 MB in the beginning and 204.5 MB in the end (delta: 59.8 MB). Free memory was 99.7 MB in the beginning and 171.5 MB in the end (delta: -71.8 MB). Peak memory consumption was 30.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 173.57 ms. Allocated memory is still 204.5 MB. Free memory was 171.5 MB in the beginning and 166.6 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1277.87 ms. Allocated memory was 204.5 MB in the beginning and 236.5 MB in the end (delta: 32.0 MB). Free memory was 166.6 MB in the beginning and 182.3 MB in the end (delta: -15.8 MB). Peak memory consumption was 84.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18033.17 ms. Allocated memory was 236.5 MB in the beginning and 504.4 MB in the end (delta: 267.9 MB). Free memory was 182.3 MB in the beginning and 341.0 MB in the end (delta: -158.7 MB). Peak memory consumption was 334.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 463]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: ((((((a17 <= 8 && 9 <= a28) || !(8 == \old(a17))) || (a17 <= \old(a17) && a28 <= 7)) || !(\old(a28) <= 7)) || !(\old(a25) <= 0)) || !(\old(a11) <= 0)) || 8 == a17 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 16.5s, OverallIterations: 8, TraceHistogramMax: 4, AutomataDifference: 11.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 665 SDtfs, 4646 SDslu, 385 SDs, 0 SdLazy, 6219 SolverSat, 1674 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 838 GetRequests, 748 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3261occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 8 MinimizatonAttempts, 1273 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 108 PreInvPairs, 150 NumberOfFragments, 247 HoareAnnotationTreeSize, 108 FomulaSimplifications, 34460 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3660 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 1764 NumberOfCodeBlocks, 1764 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1751 ConstructedInterpolants, 0 QuantifiedInterpolants, 759778 SizeOfPredicates, 7 NumberOfNonLiveVariables, 1966 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 13 InterpolantComputations, 6 PerfectInterpolantSequences, 474/501 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...