/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label30.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 13:39:33,463 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 13:39:33,468 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 13:39:33,514 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 13:39:33,514 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 13:39:33,523 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 13:39:33,526 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 13:39:33,530 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 13:39:33,533 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 13:39:33,536 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 13:39:33,537 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 13:39:33,538 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 13:39:33,539 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 13:39:33,542 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 13:39:33,545 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 13:39:33,547 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 13:39:33,548 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 13:39:33,549 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 13:39:33,551 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 13:39:33,553 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 13:39:33,555 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 13:39:33,556 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 13:39:33,557 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 13:39:33,558 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 13:39:33,560 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-04 13:39:33,569 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 13:39:33,570 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 13:39:33,571 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 13:39:33,572 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-04 13:39:33,614 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 13:39:33,615 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 13:39:33,616 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-04 13:39:33,617 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-04 13:39:33,617 INFO L138 SettingsManager]: * Use SBE=true [2020-09-04 13:39:33,617 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 13:39:33,618 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 13:39:33,618 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 13:39:33,618 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 13:39:33,618 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 13:39:33,619 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 13:39:33,619 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 13:39:33,619 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 13:39:33,620 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 13:39:33,621 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 13:39:33,621 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 13:39:33,621 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 13:39:33,622 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 13:39:33,622 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-04 13:39:33,622 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 13:39:33,622 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 13:39:33,623 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 13:39:33,623 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 13:39:33,623 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-04 13:39:33,623 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-04 13:39:33,623 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-04 13:39:33,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-04 13:39:33,624 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 13:39:33,624 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-04 13:39:33,624 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-04 13:39:34,114 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 13:39:34,138 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 13:39:34,142 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 13:39:34,144 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 13:39:34,144 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 13:39:34,145 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label30.c [2020-09-04 13:39:34,227 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/262cfddc4/cb5babbba0054f48b08ae84d490c792b/FLAG1266c4dd6 [2020-09-04 13:39:34,905 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 13:39:34,906 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label30.c [2020-09-04 13:39:34,925 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/262cfddc4/cb5babbba0054f48b08ae84d490c792b/FLAG1266c4dd6 [2020-09-04 13:39:35,129 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/262cfddc4/cb5babbba0054f48b08ae84d490c792b [2020-09-04 13:39:35,144 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 13:39:35,146 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 13:39:35,148 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 13:39:35,148 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 13:39:35,152 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 13:39:35,153 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 01:39:35" (1/1) ... [2020-09-04 13:39:35,158 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a86aac7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:39:35, skipping insertion in model container [2020-09-04 13:39:35,158 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 01:39:35" (1/1) ... [2020-09-04 13:39:35,168 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 13:39:35,242 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 13:39:35,856 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 13:39:35,863 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 13:39:36,005 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 13:39:36,026 INFO L208 MainTranslator]: Completed translation [2020-09-04 13:39:36,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:39:36 WrapperNode [2020-09-04 13:39:36,027 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 13:39:36,028 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 13:39:36,028 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 13:39:36,028 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 13:39:36,042 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:39:36" (1/1) ... [2020-09-04 13:39:36,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:39:36" (1/1) ... [2020-09-04 13:39:36,065 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:39:36" (1/1) ... [2020-09-04 13:39:36,066 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:39:36" (1/1) ... [2020-09-04 13:39:36,111 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:39:36" (1/1) ... [2020-09-04 13:39:36,138 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:39:36" (1/1) ... [2020-09-04 13:39:36,147 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:39:36" (1/1) ... [2020-09-04 13:39:36,174 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 13:39:36,175 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 13:39:36,175 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 13:39:36,176 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 13:39:36,177 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:39:36" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 13:39:36,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 13:39:36,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 13:39:36,260 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-04 13:39:36,260 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 13:39:36,260 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-04 13:39:36,260 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 13:39:36,261 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 13:39:36,261 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-04 13:39:36,261 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 13:39:36,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 13:39:36,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 13:39:37,790 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 13:39:37,790 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-04 13:39:37,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 01:39:37 BoogieIcfgContainer [2020-09-04 13:39:37,798 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 13:39:37,800 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 13:39:37,800 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 13:39:37,804 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 13:39:37,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 01:39:35" (1/3) ... [2020-09-04 13:39:37,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bbc50e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 01:39:37, skipping insertion in model container [2020-09-04 13:39:37,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:39:36" (2/3) ... [2020-09-04 13:39:37,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bbc50e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 01:39:37, skipping insertion in model container [2020-09-04 13:39:37,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 01:39:37" (3/3) ... [2020-09-04 13:39:37,809 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label30.c [2020-09-04 13:39:37,821 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-04 13:39:37,831 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 13:39:37,854 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 13:39:37,889 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 13:39:37,889 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 13:39:37,889 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-04 13:39:37,890 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 13:39:37,890 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 13:39:37,890 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 13:39:37,890 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 13:39:37,890 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 13:39:37,919 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-09-04 13:39:37,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-09-04 13:39:37,930 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:39:37,932 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] [2020-09-04 13:39:37,932 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:39:37,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:39:37,940 INFO L82 PathProgramCache]: Analyzing trace with hash 2061919546, now seen corresponding path program 1 times [2020-09-04 13:39:37,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:39:37,952 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527860882] [2020-09-04 13:39:37,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:39:38,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:38,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:39:38,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:38,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:39:38,340 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527860882] [2020-09-04 13:39:38,342 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 13:39:38,342 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 13:39:38,343 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778117709] [2020-09-04 13:39:38,351 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-04 13:39:38,352 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:39:38,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-04 13:39:38,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-04 13:39:38,379 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 5 states. [2020-09-04 13:39:41,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:39:41,672 INFO L93 Difference]: Finished difference Result 902 states and 1625 transitions. [2020-09-04 13:39:41,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-04 13:39:41,680 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 49 [2020-09-04 13:39:41,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:39:41,712 INFO L225 Difference]: With dead ends: 902 [2020-09-04 13:39:41,712 INFO L226 Difference]: Without dead ends: 564 [2020-09-04 13:39:41,722 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-04 13:39:41,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-09-04 13:39:41,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 376. [2020-09-04 13:39:41,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2020-09-04 13:39:41,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 528 transitions. [2020-09-04 13:39:41,821 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 528 transitions. Word has length 49 [2020-09-04 13:39:41,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:39:41,821 INFO L479 AbstractCegarLoop]: Abstraction has 376 states and 528 transitions. [2020-09-04 13:39:41,822 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-04 13:39:41,822 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 528 transitions. [2020-09-04 13:39:41,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-09-04 13:39:41,829 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:39:41,829 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-04 13:39:41,830 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 13:39:41,830 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:39:41,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:39:41,831 INFO L82 PathProgramCache]: Analyzing trace with hash 783093133, now seen corresponding path program 1 times [2020-09-04 13:39:41,831 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:39:41,831 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664608823] [2020-09-04 13:39:41,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:39:41,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:42,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:39:42,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:42,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:39:42,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:42,291 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:39:42,292 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664608823] [2020-09-04 13:39:42,292 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 13:39:42,293 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-04 13:39:42,293 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552159324] [2020-09-04 13:39:42,295 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-04 13:39:42,295 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:39:42,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-04 13:39:42,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-04 13:39:42,296 INFO L87 Difference]: Start difference. First operand 376 states and 528 transitions. Second operand 8 states. [2020-09-04 13:39:44,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:39:44,406 INFO L93 Difference]: Finished difference Result 942 states and 1295 transitions. [2020-09-04 13:39:44,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-04 13:39:44,407 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 132 [2020-09-04 13:39:44,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:39:44,412 INFO L225 Difference]: With dead ends: 942 [2020-09-04 13:39:44,413 INFO L226 Difference]: Without dead ends: 572 [2020-09-04 13:39:44,415 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-09-04 13:39:44,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2020-09-04 13:39:44,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 564. [2020-09-04 13:39:44,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 564 states. [2020-09-04 13:39:44,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 745 transitions. [2020-09-04 13:39:44,460 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 745 transitions. Word has length 132 [2020-09-04 13:39:44,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:39:44,464 INFO L479 AbstractCegarLoop]: Abstraction has 564 states and 745 transitions. [2020-09-04 13:39:44,464 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-04 13:39:44,464 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 745 transitions. [2020-09-04 13:39:44,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-09-04 13:39:44,474 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:39:44,475 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-04 13:39:44,475 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 13:39:44,475 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:39:44,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:39:44,476 INFO L82 PathProgramCache]: Analyzing trace with hash 1340716769, now seen corresponding path program 1 times [2020-09-04 13:39:44,476 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:39:44,476 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148125319] [2020-09-04 13:39:44,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:39:44,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:44,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:39:44,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:44,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:39:44,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:44,838 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 38 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-04 13:39:44,839 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148125319] [2020-09-04 13:39:44,840 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1522820759] [2020-09-04 13:39:44,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 13:39:44,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:44,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 4 conjunts are in the unsatisfiable core [2020-09-04 13:39:44,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:39:45,069 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:39:45,069 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-09-04 13:39:45,070 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 7 [2020-09-04 13:39:45,070 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310344080] [2020-09-04 13:39:45,071 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 13:39:45,071 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:39:45,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 13:39:45,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-04 13:39:45,072 INFO L87 Difference]: Start difference. First operand 564 states and 745 transitions. Second operand 3 states. [2020-09-04 13:39:46,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:39:46,049 INFO L93 Difference]: Finished difference Result 1118 states and 1494 transitions. [2020-09-04 13:39:46,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 13:39:46,050 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2020-09-04 13:39:46,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:39:46,057 INFO L225 Difference]: With dead ends: 1118 [2020-09-04 13:39:46,057 INFO L226 Difference]: Without dead ends: 1116 [2020-09-04 13:39:46,058 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-04 13:39:46,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2020-09-04 13:39:46,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 750. [2020-09-04 13:39:46,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 750 states. [2020-09-04 13:39:46,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 1054 transitions. [2020-09-04 13:39:46,124 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 1054 transitions. Word has length 158 [2020-09-04 13:39:46,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:39:46,125 INFO L479 AbstractCegarLoop]: Abstraction has 750 states and 1054 transitions. [2020-09-04 13:39:46,126 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 13:39:46,126 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 1054 transitions. [2020-09-04 13:39:46,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-09-04 13:39:46,132 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:39:46,132 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:39:46,348 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-09-04 13:39:46,348 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:39:46,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:39:46,349 INFO L82 PathProgramCache]: Analyzing trace with hash 1341152017, now seen corresponding path program 1 times [2020-09-04 13:39:46,350 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:39:46,350 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888953031] [2020-09-04 13:39:46,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:39:46,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:46,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:39:46,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:46,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:39:46,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:46,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-09-04 13:39:46,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:46,589 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 84 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-04 13:39:46,590 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888953031] [2020-09-04 13:39:46,590 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [119892533] [2020-09-04 13:39:46,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 13:39:46,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:46,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 6 conjunts are in the unsatisfiable core [2020-09-04 13:39:46,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:39:46,773 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2020-09-04 13:39:46,774 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-09-04 13:39:46,774 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 10 [2020-09-04 13:39:46,774 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174123512] [2020-09-04 13:39:46,775 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-04 13:39:46,776 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:39:46,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-04 13:39:46,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-09-04 13:39:46,777 INFO L87 Difference]: Start difference. First operand 750 states and 1054 transitions. Second operand 5 states. [2020-09-04 13:39:48,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:39:48,259 INFO L93 Difference]: Finished difference Result 1892 states and 2738 transitions. [2020-09-04 13:39:48,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-04 13:39:48,261 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 202 [2020-09-04 13:39:48,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:39:48,272 INFO L225 Difference]: With dead ends: 1892 [2020-09-04 13:39:48,272 INFO L226 Difference]: Without dead ends: 1148 [2020-09-04 13:39:48,276 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2020-09-04 13:39:48,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1148 states. [2020-09-04 13:39:48,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1148 to 1126. [2020-09-04 13:39:48,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1126 states. [2020-09-04 13:39:48,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1126 states to 1126 states and 1479 transitions. [2020-09-04 13:39:48,317 INFO L78 Accepts]: Start accepts. Automaton has 1126 states and 1479 transitions. Word has length 202 [2020-09-04 13:39:48,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:39:48,318 INFO L479 AbstractCegarLoop]: Abstraction has 1126 states and 1479 transitions. [2020-09-04 13:39:48,318 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-04 13:39:48,318 INFO L276 IsEmpty]: Start isEmpty. Operand 1126 states and 1479 transitions. [2020-09-04 13:39:48,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-09-04 13:39:48,322 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:39:48,322 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:39:48,535 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:39:48,535 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:39:48,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:39:48,536 INFO L82 PathProgramCache]: Analyzing trace with hash -2013904043, now seen corresponding path program 1 times [2020-09-04 13:39:48,536 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:39:48,536 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132066025] [2020-09-04 13:39:48,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:39:48,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:48,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:39:48,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:48,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:39:48,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:48,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-04 13:39:48,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:48,897 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 82 proven. 8 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-09-04 13:39:48,897 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132066025] [2020-09-04 13:39:48,898 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2136386880] [2020-09-04 13:39:48,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 13:39:48,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:48,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 4 conjunts are in the unsatisfiable core [2020-09-04 13:39:48,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:39:49,043 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-09-04 13:39:49,044 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-09-04 13:39:49,044 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 8 [2020-09-04 13:39:49,044 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943313401] [2020-09-04 13:39:49,045 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 13:39:49,045 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:39:49,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 13:39:49,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-04 13:39:49,046 INFO L87 Difference]: Start difference. First operand 1126 states and 1479 transitions. Second operand 3 states. [2020-09-04 13:39:50,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:39:50,220 INFO L93 Difference]: Finished difference Result 3166 states and 4238 transitions. [2020-09-04 13:39:50,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 13:39:50,222 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 216 [2020-09-04 13:39:50,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:39:50,233 INFO L225 Difference]: With dead ends: 3166 [2020-09-04 13:39:50,233 INFO L226 Difference]: Without dead ends: 2046 [2020-09-04 13:39:50,237 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-04 13:39:50,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2046 states. [2020-09-04 13:39:50,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2046 to 1862. [2020-09-04 13:39:50,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1862 states. [2020-09-04 13:39:50,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1862 states to 1862 states and 2342 transitions. [2020-09-04 13:39:50,297 INFO L78 Accepts]: Start accepts. Automaton has 1862 states and 2342 transitions. Word has length 216 [2020-09-04 13:39:50,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:39:50,298 INFO L479 AbstractCegarLoop]: Abstraction has 1862 states and 2342 transitions. [2020-09-04 13:39:50,298 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 13:39:50,298 INFO L276 IsEmpty]: Start isEmpty. Operand 1862 states and 2342 transitions. [2020-09-04 13:39:50,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-09-04 13:39:50,303 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:39:50,303 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:39:50,517 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:39:50,517 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:39:50,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:39:50,518 INFO L82 PathProgramCache]: Analyzing trace with hash 540782893, now seen corresponding path program 1 times [2020-09-04 13:39:50,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:39:50,519 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457197209] [2020-09-04 13:39:50,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:39:50,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:50,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:39:50,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:50,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:39:50,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:50,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-04 13:39:50,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:50,821 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 82 proven. 8 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2020-09-04 13:39:50,822 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457197209] [2020-09-04 13:39:50,822 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [514491745] [2020-09-04 13:39:50,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 13:39:50,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:50,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 4 conjunts are in the unsatisfiable core [2020-09-04 13:39:50,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:39:51,061 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-09-04 13:39:51,061 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-09-04 13:39:51,062 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2020-09-04 13:39:51,063 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259123341] [2020-09-04 13:39:51,063 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 13:39:51,064 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:39:51,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 13:39:51,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-04 13:39:51,064 INFO L87 Difference]: Start difference. First operand 1862 states and 2342 transitions. Second operand 3 states. [2020-09-04 13:39:52,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:39:52,212 INFO L93 Difference]: Finished difference Result 4452 states and 5757 transitions. [2020-09-04 13:39:52,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 13:39:52,213 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 228 [2020-09-04 13:39:52,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:39:52,228 INFO L225 Difference]: With dead ends: 4452 [2020-09-04 13:39:52,229 INFO L226 Difference]: Without dead ends: 2596 [2020-09-04 13:39:52,234 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-04 13:39:52,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2596 states. [2020-09-04 13:39:52,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2596 to 2414. [2020-09-04 13:39:52,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2414 states. [2020-09-04 13:39:52,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2414 states to 2414 states and 3016 transitions. [2020-09-04 13:39:52,311 INFO L78 Accepts]: Start accepts. Automaton has 2414 states and 3016 transitions. Word has length 228 [2020-09-04 13:39:52,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:39:52,312 INFO L479 AbstractCegarLoop]: Abstraction has 2414 states and 3016 transitions. [2020-09-04 13:39:52,312 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 13:39:52,313 INFO L276 IsEmpty]: Start isEmpty. Operand 2414 states and 3016 transitions. [2020-09-04 13:39:52,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2020-09-04 13:39:52,320 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:39:52,321 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:39:52,535 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:39:52,535 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:39:52,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:39:52,536 INFO L82 PathProgramCache]: Analyzing trace with hash -1697739374, now seen corresponding path program 1 times [2020-09-04 13:39:52,536 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:39:52,536 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90903134] [2020-09-04 13:39:52,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:39:52,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:52,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:39:52,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:52,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:39:52,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:52,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-04 13:39:52,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:53,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-04 13:39:53,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:53,449 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 160 proven. 203 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-04 13:39:53,450 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90903134] [2020-09-04 13:39:53,450 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1876121382] [2020-09-04 13:39:53,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 13:39:53,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:53,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 4 conjunts are in the unsatisfiable core [2020-09-04 13:39:53,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:39:53,677 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2020-09-04 13:39:53,678 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-09-04 13:39:53,678 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2020-09-04 13:39:53,679 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567054978] [2020-09-04 13:39:53,679 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 13:39:53,680 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:39:53,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 13:39:53,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-09-04 13:39:53,680 INFO L87 Difference]: Start difference. First operand 2414 states and 3016 transitions. Second operand 3 states. [2020-09-04 13:39:54,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:39:54,798 INFO L93 Difference]: Finished difference Result 5556 states and 7102 transitions. [2020-09-04 13:39:54,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 13:39:54,799 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 325 [2020-09-04 13:39:54,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:39:54,815 INFO L225 Difference]: With dead ends: 5556 [2020-09-04 13:39:54,815 INFO L226 Difference]: Without dead ends: 3148 [2020-09-04 13:39:54,822 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-09-04 13:39:54,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3148 states. [2020-09-04 13:39:54,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3148 to 2784. [2020-09-04 13:39:54,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2784 states. [2020-09-04 13:39:54,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2784 states to 2784 states and 3534 transitions. [2020-09-04 13:39:54,894 INFO L78 Accepts]: Start accepts. Automaton has 2784 states and 3534 transitions. Word has length 325 [2020-09-04 13:39:54,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:39:54,895 INFO L479 AbstractCegarLoop]: Abstraction has 2784 states and 3534 transitions. [2020-09-04 13:39:54,896 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 13:39:54,896 INFO L276 IsEmpty]: Start isEmpty. Operand 2784 states and 3534 transitions. [2020-09-04 13:39:54,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2020-09-04 13:39:54,905 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:39:54,906 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:39:55,120 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-09-04 13:39:55,120 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:39:55,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:39:55,121 INFO L82 PathProgramCache]: Analyzing trace with hash 1554306481, now seen corresponding path program 1 times [2020-09-04 13:39:55,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:39:55,121 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811448923] [2020-09-04 13:39:55,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:39:55,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:55,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:39:55,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:55,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:39:55,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:55,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-04 13:39:55,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:55,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-04 13:39:55,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:55,920 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 160 proven. 232 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-04 13:39:55,921 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811448923] [2020-09-04 13:39:55,921 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [694022628] [2020-09-04 13:39:55,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:39:56,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:56,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 4 conjunts are in the unsatisfiable core [2020-09-04 13:39:56,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:39:56,149 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2020-09-04 13:39:56,149 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-09-04 13:39:56,150 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2020-09-04 13:39:56,150 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446513592] [2020-09-04 13:39:56,151 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 13:39:56,151 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:39:56,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 13:39:56,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-09-04 13:39:56,152 INFO L87 Difference]: Start difference. First operand 2784 states and 3534 transitions. Second operand 3 states. [2020-09-04 13:39:57,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:39:57,277 INFO L93 Difference]: Finished difference Result 5752 states and 7553 transitions. [2020-09-04 13:39:57,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 13:39:57,277 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 350 [2020-09-04 13:39:57,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:39:57,292 INFO L225 Difference]: With dead ends: 5752 [2020-09-04 13:39:57,292 INFO L226 Difference]: Without dead ends: 3338 [2020-09-04 13:39:57,298 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-09-04 13:39:57,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3338 states. [2020-09-04 13:39:57,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3338 to 3156. [2020-09-04 13:39:57,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3156 states. [2020-09-04 13:39:57,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3156 states to 3156 states and 4131 transitions. [2020-09-04 13:39:57,376 INFO L78 Accepts]: Start accepts. Automaton has 3156 states and 4131 transitions. Word has length 350 [2020-09-04 13:39:57,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:39:57,377 INFO L479 AbstractCegarLoop]: Abstraction has 3156 states and 4131 transitions. [2020-09-04 13:39:57,377 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 13:39:57,377 INFO L276 IsEmpty]: Start isEmpty. Operand 3156 states and 4131 transitions. [2020-09-04 13:39:57,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2020-09-04 13:39:57,390 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:39:57,391 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:39:57,604 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:39:57,604 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:39:57,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:39:57,606 INFO L82 PathProgramCache]: Analyzing trace with hash -954117331, now seen corresponding path program 1 times [2020-09-04 13:39:57,606 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:39:57,606 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500681892] [2020-09-04 13:39:57,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:39:57,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:57,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:39:57,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:57,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:39:57,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:57,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-04 13:39:57,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:58,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-04 13:39:58,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:58,441 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 160 proven. 239 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-04 13:39:58,441 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500681892] [2020-09-04 13:39:58,441 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1416701044] [2020-09-04 13:39:58,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:39:58,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:58,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 585 conjuncts, 4 conjunts are in the unsatisfiable core [2020-09-04 13:39:58,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:39:58,710 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2020-09-04 13:39:58,710 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-09-04 13:39:58,711 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2020-09-04 13:39:58,711 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154549135] [2020-09-04 13:39:58,712 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 13:39:58,712 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:39:58,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 13:39:58,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-09-04 13:39:58,713 INFO L87 Difference]: Start difference. First operand 3156 states and 4131 transitions. Second operand 3 states. [2020-09-04 13:39:59,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:39:59,696 INFO L93 Difference]: Finished difference Result 4446 states and 5796 transitions. [2020-09-04 13:39:59,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 13:39:59,697 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 364 [2020-09-04 13:39:59,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:39:59,723 INFO L225 Difference]: With dead ends: 4446 [2020-09-04 13:39:59,723 INFO L226 Difference]: Without dead ends: 4444 [2020-09-04 13:39:59,726 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-09-04 13:39:59,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4444 states. [2020-09-04 13:39:59,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4444 to 3166. [2020-09-04 13:39:59,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3166 states. [2020-09-04 13:39:59,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3166 states to 3166 states and 4151 transitions. [2020-09-04 13:39:59,842 INFO L78 Accepts]: Start accepts. Automaton has 3166 states and 4151 transitions. Word has length 364 [2020-09-04 13:39:59,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:39:59,844 INFO L479 AbstractCegarLoop]: Abstraction has 3166 states and 4151 transitions. [2020-09-04 13:39:59,844 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 13:39:59,844 INFO L276 IsEmpty]: Start isEmpty. Operand 3166 states and 4151 transitions. [2020-09-04 13:39:59,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2020-09-04 13:39:59,864 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:39:59,864 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:40:00,077 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:40:00,077 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:40:00,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:40:00,078 INFO L82 PathProgramCache]: Analyzing trace with hash -750146287, now seen corresponding path program 1 times [2020-09-04 13:40:00,078 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:40:00,078 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499260526] [2020-09-04 13:40:00,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:40:00,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:00,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:40:00,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:00,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:40:00,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:00,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-04 13:40:00,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:00,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-04 13:40:00,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:00,899 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 160 proven. 239 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-04 13:40:00,899 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499260526] [2020-09-04 13:40:00,899 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [16089505] [2020-09-04 13:40:00,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:40:01,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:40:01,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 621 conjuncts, 4 conjunts are in the unsatisfiable core [2020-09-04 13:40:01,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:40:01,239 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2020-09-04 13:40:01,239 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-09-04 13:40:01,240 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2020-09-04 13:40:01,240 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85637042] [2020-09-04 13:40:01,241 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 13:40:01,241 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:40:01,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 13:40:01,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-09-04 13:40:01,242 INFO L87 Difference]: Start difference. First operand 3166 states and 4151 transitions. Second operand 3 states. [2020-09-04 13:40:02,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:40:02,254 INFO L93 Difference]: Finished difference Result 6876 states and 9077 transitions. [2020-09-04 13:40:02,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 13:40:02,257 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 398 [2020-09-04 13:40:02,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:40:02,258 INFO L225 Difference]: With dead ends: 6876 [2020-09-04 13:40:02,258 INFO L226 Difference]: Without dead ends: 0 [2020-09-04 13:40:02,273 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 403 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-09-04 13:40:02,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-04 13:40:02,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-04 13:40:02,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-04 13:40:02,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-04 13:40:02,274 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 398 [2020-09-04 13:40:02,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:40:02,274 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-04 13:40:02,274 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 13:40:02,275 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-04 13:40:02,275 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-04 13:40:02,489 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-09-04 13:40:02,493 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-04 13:40:03,944 WARN L193 SmtUtils]: Spent 599.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 30 [2020-09-04 13:40:04,111 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-04 13:40:04,111 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a24~0 |old(~a24~0)|) (= ~inputC~0 |old(~inputC~0)|) (= ~a21~0 |old(~a21~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputA~0 |old(~inputA~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= ~a12~0 |old(~a12~0)|) (= ~inputB~0 |old(~inputB~0)|) (= ~a15~0 |old(~a15~0)|)) [2020-09-04 13:40:04,112 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-04 13:40:04,112 INFO L268 CegarLoopResult]: For program point L432(lines 432 870) no Hoare annotation was computed. [2020-09-04 13:40:04,112 INFO L268 CegarLoopResult]: For program point L366(lines 366 870) no Hoare annotation was computed. [2020-09-04 13:40:04,112 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,112 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,112 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,113 INFO L268 CegarLoopResult]: For program point L235(lines 235 870) no Hoare annotation was computed. [2020-09-04 13:40:04,113 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-09-04 13:40:04,113 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-09-04 13:40:04,113 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-09-04 13:40:04,113 INFO L268 CegarLoopResult]: For program point L764(lines 764 870) no Hoare annotation was computed. [2020-09-04 13:40:04,113 INFO L268 CegarLoopResult]: For program point L632(lines 632 870) no Hoare annotation was computed. [2020-09-04 13:40:04,114 INFO L268 CegarLoopResult]: For program point L500(lines 500 870) no Hoare annotation was computed. [2020-09-04 13:40:04,114 INFO L268 CegarLoopResult]: For program point L831(lines 831 870) no Hoare annotation was computed. [2020-09-04 13:40:04,114 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,114 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,114 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,114 INFO L268 CegarLoopResult]: For program point L700(lines 700 870) no Hoare annotation was computed. [2020-09-04 13:40:04,114 INFO L268 CegarLoopResult]: For program point L568(lines 568 870) no Hoare annotation was computed. [2020-09-04 13:40:04,115 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-09-04 13:40:04,115 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-09-04 13:40:04,115 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-09-04 13:40:04,115 INFO L268 CegarLoopResult]: For program point L305(lines 305 870) no Hoare annotation was computed. [2020-09-04 13:40:04,115 INFO L268 CegarLoopResult]: For program point L438(lines 438 870) no Hoare annotation was computed. [2020-09-04 13:40:04,115 INFO L268 CegarLoopResult]: For program point L372(lines 372 870) no Hoare annotation was computed. [2020-09-04 13:40:04,115 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,115 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,115 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,116 INFO L268 CegarLoopResult]: For program point L241(lines 241 870) no Hoare annotation was computed. [2020-09-04 13:40:04,116 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-09-04 13:40:04,116 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-09-04 13:40:04,116 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-09-04 13:40:04,116 INFO L268 CegarLoopResult]: For program point L638(lines 638 870) no Hoare annotation was computed. [2020-09-04 13:40:04,116 INFO L268 CegarLoopResult]: For program point L506(lines 506 870) no Hoare annotation was computed. [2020-09-04 13:40:04,116 INFO L268 CegarLoopResult]: For program point L837(lines 837 870) no Hoare annotation was computed. [2020-09-04 13:40:04,117 INFO L268 CegarLoopResult]: For program point L771(lines 771 870) no Hoare annotation was computed. [2020-09-04 13:40:04,117 INFO L268 CegarLoopResult]: For program point L573(lines 573 870) no Hoare annotation was computed. [2020-09-04 13:40:04,117 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,117 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,117 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,117 INFO L268 CegarLoopResult]: For program point L706(lines 706 870) no Hoare annotation was computed. [2020-09-04 13:40:04,117 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-09-04 13:40:04,118 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-09-04 13:40:04,118 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-09-04 13:40:04,118 INFO L268 CegarLoopResult]: For program point L311(lines 311 870) no Hoare annotation was computed. [2020-09-04 13:40:04,118 INFO L268 CegarLoopResult]: For program point L444(lines 444 870) no Hoare annotation was computed. [2020-09-04 13:40:04,118 INFO L268 CegarLoopResult]: For program point L378(lines 378 870) no Hoare annotation was computed. [2020-09-04 13:40:04,118 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,118 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,119 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,119 INFO L268 CegarLoopResult]: For program point L247(lines 247 870) no Hoare annotation was computed. [2020-09-04 13:40:04,119 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-09-04 13:40:04,119 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-09-04 13:40:04,119 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-09-04 13:40:04,119 INFO L268 CegarLoopResult]: For program point L842(lines 842 870) no Hoare annotation was computed. [2020-09-04 13:40:04,119 INFO L268 CegarLoopResult]: For program point L644(lines 644 870) no Hoare annotation was computed. [2020-09-04 13:40:04,120 INFO L268 CegarLoopResult]: For program point L512(lines 512 870) no Hoare annotation was computed. [2020-09-04 13:40:04,120 INFO L268 CegarLoopResult]: For program point L777(lines 777 870) no Hoare annotation was computed. [2020-09-04 13:40:04,120 INFO L268 CegarLoopResult]: For program point L579(lines 579 870) no Hoare annotation was computed. [2020-09-04 13:40:04,120 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,120 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,120 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,120 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,121 INFO L268 CegarLoopResult]: For program point L712(lines 712 870) no Hoare annotation was computed. [2020-09-04 13:40:04,121 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-09-04 13:40:04,121 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-09-04 13:40:04,121 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-09-04 13:40:04,121 INFO L268 CegarLoopResult]: For program point L449(lines 449 870) no Hoare annotation was computed. [2020-09-04 13:40:04,121 INFO L268 CegarLoopResult]: For program point L317(lines 317 870) no Hoare annotation was computed. [2020-09-04 13:40:04,121 INFO L268 CegarLoopResult]: For program point L384(lines 384 870) no Hoare annotation was computed. [2020-09-04 13:40:04,122 INFO L268 CegarLoopResult]: For program point L252(lines 252 870) no Hoare annotation was computed. [2020-09-04 13:40:04,122 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,122 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,122 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,122 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-09-04 13:40:04,122 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-09-04 13:40:04,122 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-09-04 13:40:04,124 INFO L268 CegarLoopResult]: For program point L848(lines 848 870) no Hoare annotation was computed. [2020-09-04 13:40:04,124 INFO L268 CegarLoopResult]: For program point L650(lines 650 870) no Hoare annotation was computed. [2020-09-04 13:40:04,124 INFO L268 CegarLoopResult]: For program point L518(lines 518 870) no Hoare annotation was computed. [2020-09-04 13:40:04,124 INFO L268 CegarLoopResult]: For program point L783(lines 783 870) no Hoare annotation was computed. [2020-09-04 13:40:04,124 INFO L268 CegarLoopResult]: For program point L585(lines 585 870) no Hoare annotation was computed. [2020-09-04 13:40:04,125 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,125 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,125 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,125 INFO L268 CegarLoopResult]: For program point L718(lines 718 870) no Hoare annotation was computed. [2020-09-04 13:40:04,125 INFO L268 CegarLoopResult]: For program point L454(lines 454 870) no Hoare annotation was computed. [2020-09-04 13:40:04,125 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-09-04 13:40:04,125 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-09-04 13:40:04,126 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-09-04 13:40:04,126 INFO L268 CegarLoopResult]: For program point L323(lines 323 870) no Hoare annotation was computed. [2020-09-04 13:40:04,127 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse0 (and (= ~a24~0 |old(~a24~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a12~0 |old(~a12~0)|) (= ~a15~0 |old(~a15~0)|)))) (and (or .cse0 (not (<= |old(~a21~0)| 6))) (or (not (<= 8 |old(~a21~0)|)) .cse0) (or .cse0 (not (<= 7 |old(~a15~0)|))) (or .cse0 (not (<= |old(~a15~0)| 5))))) [2020-09-04 13:40:04,127 INFO L268 CegarLoopResult]: For program point L390(lines 390 870) no Hoare annotation was computed. [2020-09-04 13:40:04,127 INFO L268 CegarLoopResult]: For program point L258(lines 258 870) no Hoare annotation was computed. [2020-09-04 13:40:04,127 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,128 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,128 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,128 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-09-04 13:40:04,128 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-09-04 13:40:04,128 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-09-04 13:40:04,128 INFO L268 CegarLoopResult]: For program point L854(lines 854 870) no Hoare annotation was computed. [2020-09-04 13:40:04,128 INFO L268 CegarLoopResult]: For program point L656(lines 656 870) no Hoare annotation was computed. [2020-09-04 13:40:04,129 INFO L268 CegarLoopResult]: For program point L524(lines 524 870) no Hoare annotation was computed. [2020-09-04 13:40:04,129 INFO L268 CegarLoopResult]: For program point L789(lines 789 870) no Hoare annotation was computed. [2020-09-04 13:40:04,129 INFO L268 CegarLoopResult]: For program point L591(lines 591 870) no Hoare annotation was computed. [2020-09-04 13:40:04,129 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,129 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,129 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,129 INFO L268 CegarLoopResult]: For program point L724(lines 724 870) no Hoare annotation was computed. [2020-09-04 13:40:04,129 INFO L268 CegarLoopResult]: For program point L460(lines 460 870) no Hoare annotation was computed. [2020-09-04 13:40:04,130 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-09-04 13:40:04,130 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-09-04 13:40:04,130 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-09-04 13:40:04,130 INFO L268 CegarLoopResult]: For program point L329(lines 329 870) no Hoare annotation was computed. [2020-09-04 13:40:04,130 INFO L268 CegarLoopResult]: For program point L396(lines 396 870) no Hoare annotation was computed. [2020-09-04 13:40:04,130 INFO L268 CegarLoopResult]: For program point L264(lines 264 870) no Hoare annotation was computed. [2020-09-04 13:40:04,130 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,131 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,131 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,131 INFO L268 CegarLoopResult]: For program point L859(lines 859 870) no Hoare annotation was computed. [2020-09-04 13:40:04,131 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-09-04 13:40:04,131 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-09-04 13:40:04,131 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-09-04 13:40:04,131 INFO L268 CegarLoopResult]: For program point L662(lines 662 870) no Hoare annotation was computed. [2020-09-04 13:40:04,132 INFO L268 CegarLoopResult]: For program point L530(lines 530 870) no Hoare annotation was computed. [2020-09-04 13:40:04,132 INFO L268 CegarLoopResult]: For program point L795(lines 795 870) no Hoare annotation was computed. [2020-09-04 13:40:04,132 INFO L268 CegarLoopResult]: For program point L597(lines 597 870) no Hoare annotation was computed. [2020-09-04 13:40:04,132 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,132 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,132 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,132 INFO L268 CegarLoopResult]: For program point L730(lines 730 870) no Hoare annotation was computed. [2020-09-04 13:40:04,132 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-09-04 13:40:04,133 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-09-04 13:40:04,133 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-09-04 13:40:04,133 INFO L268 CegarLoopResult]: For program point L467(lines 467 870) no Hoare annotation was computed. [2020-09-04 13:40:04,133 INFO L268 CegarLoopResult]: For program point L335(lines 335 870) no Hoare annotation was computed. [2020-09-04 13:40:04,133 INFO L268 CegarLoopResult]: For program point L269(lines 269 870) no Hoare annotation was computed. [2020-09-04 13:40:04,133 INFO L268 CegarLoopResult]: For program point L402(lines 402 870) no Hoare annotation was computed. [2020-09-04 13:40:04,133 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,134 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,134 INFO L268 CegarLoopResult]: For program point L865(lines 865 870) no Hoare annotation was computed. [2020-09-04 13:40:04,134 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-09-04 13:40:04,135 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-09-04 13:40:04,135 INFO L268 CegarLoopResult]: For program point L668(lines 668 870) no Hoare annotation was computed. [2020-09-04 13:40:04,135 INFO L268 CegarLoopResult]: For program point L536(lines 536 870) no Hoare annotation was computed. [2020-09-04 13:40:04,135 INFO L268 CegarLoopResult]: For program point L801(lines 801 870) no Hoare annotation was computed. [2020-09-04 13:40:04,135 INFO L268 CegarLoopResult]: For program point L735(lines 735 870) no Hoare annotation was computed. [2020-09-04 13:40:04,135 INFO L268 CegarLoopResult]: For program point L603(lines 603 870) no Hoare annotation was computed. [2020-09-04 13:40:04,135 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 133) no Hoare annotation was computed. [2020-09-04 13:40:04,136 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,136 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,136 INFO L268 CegarLoopResult]: For program point L472(lines 472 870) no Hoare annotation was computed. [2020-09-04 13:40:04,136 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-09-04 13:40:04,136 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-09-04 13:40:04,136 INFO L268 CegarLoopResult]: For program point L341(lines 341 870) no Hoare annotation was computed. [2020-09-04 13:40:04,136 INFO L268 CegarLoopResult]: For program point L275(lines 275 870) no Hoare annotation was computed. [2020-09-04 13:40:04,137 INFO L268 CegarLoopResult]: For program point L408(lines 408 870) no Hoare annotation was computed. [2020-09-04 13:40:04,137 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,137 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,137 INFO L268 CegarLoopResult]: For program point L541(lines 541 870) no Hoare annotation was computed. [2020-09-04 13:40:04,137 INFO L268 CegarLoopResult]: For program point L211(lines 211 870) no Hoare annotation was computed. [2020-09-04 13:40:04,137 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-09-04 13:40:04,137 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-09-04 13:40:04,138 INFO L268 CegarLoopResult]: For program point L674(lines 674 870) no Hoare annotation was computed. [2020-09-04 13:40:04,138 INFO L268 CegarLoopResult]: For program point L807(lines 807 870) no Hoare annotation was computed. [2020-09-04 13:40:04,138 INFO L268 CegarLoopResult]: For program point L741(lines 741 870) no Hoare annotation was computed. [2020-09-04 13:40:04,138 INFO L268 CegarLoopResult]: For program point L609(lines 609 870) no Hoare annotation was computed. [2020-09-04 13:40:04,138 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,138 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,138 INFO L268 CegarLoopResult]: For program point L478(lines 478 870) no Hoare annotation was computed. [2020-09-04 13:40:04,138 INFO L268 CegarLoopResult]: For program point L280(lines 280 870) no Hoare annotation was computed. [2020-09-04 13:40:04,139 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-09-04 13:40:04,140 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-09-04 13:40:04,141 INFO L268 CegarLoopResult]: For program point L677(lines 677 870) no Hoare annotation was computed. [2020-09-04 13:40:04,141 INFO L268 CegarLoopResult]: For program point L347(lines 347 870) no Hoare annotation was computed. [2020-09-04 13:40:04,141 INFO L268 CegarLoopResult]: For program point L414(lines 414 870) no Hoare annotation was computed. [2020-09-04 13:40:04,141 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,141 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,141 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,141 INFO L268 CegarLoopResult]: For program point L547(lines 547 870) no Hoare annotation was computed. [2020-09-04 13:40:04,142 INFO L268 CegarLoopResult]: For program point L217(lines 217 870) no Hoare annotation was computed. [2020-09-04 13:40:04,142 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-09-04 13:40:04,142 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-09-04 13:40:04,142 INFO L268 CegarLoopResult]: For program point L747(lines 747 870) no Hoare annotation was computed. [2020-09-04 13:40:04,142 INFO L268 CegarLoopResult]: For program point L615(lines 615 870) no Hoare annotation was computed. [2020-09-04 13:40:04,142 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,142 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,143 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-09-04 13:40:04,143 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,143 INFO L268 CegarLoopResult]: For program point L814(lines 814 870) no Hoare annotation was computed. [2020-09-04 13:40:04,143 INFO L268 CegarLoopResult]: For program point L484(lines 484 870) no Hoare annotation was computed. [2020-09-04 13:40:04,143 INFO L268 CegarLoopResult]: For program point L286(lines 286 870) no Hoare annotation was computed. [2020-09-04 13:40:04,143 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-09-04 13:40:04,143 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-09-04 13:40:04,143 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-04 13:40:04,144 INFO L268 CegarLoopResult]: For program point L683(lines 683 870) no Hoare annotation was computed. [2020-09-04 13:40:04,144 INFO L268 CegarLoopResult]: For program point L353(lines 353 870) no Hoare annotation was computed. [2020-09-04 13:40:04,144 INFO L268 CegarLoopResult]: For program point L552(lines 552 870) no Hoare annotation was computed. [2020-09-04 13:40:04,144 INFO L268 CegarLoopResult]: For program point L420(lines 420 870) no Hoare annotation was computed. [2020-09-04 13:40:04,144 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,144 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,144 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,145 INFO L268 CegarLoopResult]: For program point L223(lines 223 870) no Hoare annotation was computed. [2020-09-04 13:40:04,145 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-09-04 13:40:04,145 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-09-04 13:40:04,145 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-04 13:40:04,145 INFO L268 CegarLoopResult]: For program point L752(lines 752 870) no Hoare annotation was computed. [2020-09-04 13:40:04,145 INFO L268 CegarLoopResult]: For program point L819(lines 819 870) no Hoare annotation was computed. [2020-09-04 13:40:04,145 INFO L268 CegarLoopResult]: For program point L621(lines 621 870) no Hoare annotation was computed. [2020-09-04 13:40:04,146 INFO L268 CegarLoopResult]: For program point L555(lines 555 870) no Hoare annotation was computed. [2020-09-04 13:40:04,146 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,146 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,146 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,146 INFO L268 CegarLoopResult]: For program point L688(lines 688 870) no Hoare annotation was computed. [2020-09-04 13:40:04,146 INFO L268 CegarLoopResult]: For program point L490(lines 490 870) no Hoare annotation was computed. [2020-09-04 13:40:04,146 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-09-04 13:40:04,146 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-09-04 13:40:04,147 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-09-04 13:40:04,147 INFO L268 CegarLoopResult]: For program point L359(lines 359 870) no Hoare annotation was computed. [2020-09-04 13:40:04,147 INFO L268 CegarLoopResult]: For program point L293(lines 293 870) no Hoare annotation was computed. [2020-09-04 13:40:04,147 INFO L268 CegarLoopResult]: For program point L426(lines 426 870) no Hoare annotation was computed. [2020-09-04 13:40:04,147 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,147 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,148 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,148 INFO L268 CegarLoopResult]: For program point L229(lines 229 870) no Hoare annotation was computed. [2020-09-04 13:40:04,148 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-09-04 13:40:04,148 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-09-04 13:40:04,148 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-09-04 13:40:04,148 INFO L268 CegarLoopResult]: For program point L758(lines 758 870) no Hoare annotation was computed. [2020-09-04 13:40:04,148 INFO L268 CegarLoopResult]: For program point L626(lines 626 870) no Hoare annotation was computed. [2020-09-04 13:40:04,148 INFO L268 CegarLoopResult]: For program point L825(lines 825 870) no Hoare annotation was computed. [2020-09-04 13:40:04,149 INFO L268 CegarLoopResult]: For program point L561(lines 561 870) no Hoare annotation was computed. [2020-09-04 13:40:04,149 INFO L268 CegarLoopResult]: For program point L495(lines 495 870) no Hoare annotation was computed. [2020-09-04 13:40:04,149 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,149 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,149 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2020-09-04 13:40:04,149 INFO L268 CegarLoopResult]: For program point L694(lines 694 870) no Hoare annotation was computed. [2020-09-04 13:40:04,149 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-09-04 13:40:04,150 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-09-04 13:40:04,150 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-09-04 13:40:04,150 INFO L268 CegarLoopResult]: For program point L299(lines 299 870) no Hoare annotation was computed. [2020-09-04 13:40:04,150 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-04 13:40:04,150 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= 7 ~a21~0) (<= 8 ~a15~0) (<= (+ ~a12~0 49) 0) (<= ~a15~0 8)) [2020-09-04 13:40:04,152 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-04 13:40:04,152 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-04 13:40:04,154 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 874 890) the Hoare annotation is: (or (not (<= 8 |old(~a15~0)|)) (not (<= |old(~a15~0)| 8)) (not (<= 7 |old(~a21~0)|)) (and (<= 8 ~a15~0) (= ~a24~0 |old(~a24~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a12~0 |old(~a12~0)|) (<= ~a15~0 |old(~a15~0)|)) (not (<= (+ |old(~a12~0)| 49) 0))) [2020-09-04 13:40:04,155 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2020-09-04 13:40:04,155 INFO L264 CegarLoopResult]: At program point L888(line 888) the Hoare annotation is: (or (<= ~a15~0 5) (<= 8 ~a21~0) (<= 7 ~a15~0) (not (<= 8 |old(~a15~0)|)) (not (<= |old(~a15~0)| 8)) (not (<= 7 |old(~a21~0)|)) (<= ~a21~0 6) (not (<= (+ |old(~a12~0)| 49) 0))) [2020-09-04 13:40:04,155 INFO L268 CegarLoopResult]: For program point L888-1(line 888) no Hoare annotation was computed. [2020-09-04 13:40:04,155 INFO L268 CegarLoopResult]: For program point L885(line 885) no Hoare annotation was computed. [2020-09-04 13:40:04,155 INFO L264 CegarLoopResult]: At program point L880-2(lines 880 889) the Hoare annotation is: (or (<= ~a15~0 5) (<= 8 ~a21~0) (<= 7 ~a15~0) (not (<= 8 |old(~a15~0)|)) (not (<= |old(~a15~0)| 8)) (not (<= 7 |old(~a21~0)|)) (<= ~a21~0 6) (not (<= (+ |old(~a12~0)| 49) 0))) [2020-09-04 13:40:04,156 INFO L268 CegarLoopResult]: For program point L880-3(lines 874 890) no Hoare annotation was computed. [2020-09-04 13:40:04,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 01:40:04 BoogieIcfgContainer [2020-09-04 13:40:04,188 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 13:40:04,200 INFO L168 Benchmark]: Toolchain (without parser) took 29044.46 ms. Allocated memory was 148.9 MB in the beginning and 679.5 MB in the end (delta: 530.6 MB). Free memory was 101.9 MB in the beginning and 149.8 MB in the end (delta: -47.9 MB). Peak memory consumption was 482.6 MB. Max. memory is 7.1 GB. [2020-09-04 13:40:04,201 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 148.9 MB. Free memory was 122.2 MB in the beginning and 122.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 13:40:04,203 INFO L168 Benchmark]: CACSL2BoogieTranslator took 880.37 ms. Allocated memory was 148.9 MB in the beginning and 205.0 MB in the end (delta: 56.1 MB). Free memory was 101.7 MB in the beginning and 159.9 MB in the end (delta: -58.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. [2020-09-04 13:40:04,204 INFO L168 Benchmark]: Boogie Preprocessor took 146.35 ms. Allocated memory is still 205.0 MB. Free memory was 159.9 MB in the beginning and 154.1 MB in the end (delta: 5.8 MB). Peak memory consumption was 5.8 MB. Max. memory is 7.1 GB. [2020-09-04 13:40:04,207 INFO L168 Benchmark]: RCFGBuilder took 1623.18 ms. Allocated memory was 205.0 MB in the beginning and 234.9 MB in the end (delta: 29.9 MB). Free memory was 154.1 MB in the beginning and 140.7 MB in the end (delta: 13.4 MB). Peak memory consumption was 67.0 MB. Max. memory is 7.1 GB. [2020-09-04 13:40:04,207 INFO L168 Benchmark]: TraceAbstraction took 26388.66 ms. Allocated memory was 234.9 MB in the beginning and 679.5 MB in the end (delta: 444.6 MB). Free memory was 139.4 MB in the beginning and 149.8 MB in the end (delta: -10.5 MB). Peak memory consumption was 434.1 MB. Max. memory is 7.1 GB. [2020-09-04 13:40:04,217 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 148.9 MB. Free memory was 122.2 MB in the beginning and 122.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 880.37 ms. Allocated memory was 148.9 MB in the beginning and 205.0 MB in the end (delta: 56.1 MB). Free memory was 101.7 MB in the beginning and 159.9 MB in the end (delta: -58.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 146.35 ms. Allocated memory is still 205.0 MB. Free memory was 159.9 MB in the beginning and 154.1 MB in the end (delta: 5.8 MB). Peak memory consumption was 5.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1623.18 ms. Allocated memory was 205.0 MB in the beginning and 234.9 MB in the end (delta: 29.9 MB). Free memory was 154.1 MB in the beginning and 140.7 MB in the end (delta: 13.4 MB). Peak memory consumption was 67.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 26388.66 ms. Allocated memory was 234.9 MB in the beginning and 679.5 MB in the end (delta: 444.6 MB). Free memory was 139.4 MB in the beginning and 149.8 MB in the end (delta: -10.5 MB). Peak memory consumption was 434.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 133]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 880]: Loop Invariant Derived loop invariant: ((((((a15 <= 5 || 8 <= a21) || 7 <= a15) || !(8 <= \old(a15))) || !(\old(a15) <= 8)) || !(7 <= \old(a21))) || a21 <= 6) || !(\old(a12) + 49 <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 254 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 24.6s, OverallIterations: 10, TraceHistogramMax: 4, AutomataDifference: 14.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1607 SDtfs, 3008 SDslu, 200 SDs, 0 SdLazy, 6919 SolverSat, 1347 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2357 GetRequests, 2283 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3166occurred in iteration=9, 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, 10 MinimizatonAttempts, 2774 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 92 PreInvPairs, 136 NumberOfFragments, 217 HoareAnnotationTreeSize, 92 FomulaSimplifications, 11701 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 7 FomulaSimplificationsInter, 2897 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 4.4s InterpolantComputationTime, 4663 NumberOfCodeBlocks, 4663 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 4645 ConstructedInterpolants, 0 QuantifiedInterpolants, 4729399 SizeOfPredicates, 15 NumberOfNonLiveVariables, 3818 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 18 InterpolantComputations, 10 PerfectInterpolantSequences, 3271/4266 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...