/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/loops/trex03-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 11:33:05,943 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 11:33:05,945 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 11:33:05,958 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 11:33:05,958 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 11:33:05,959 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 11:33:05,961 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 11:33:05,963 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 11:33:05,964 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 11:33:05,965 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 11:33:05,966 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 11:33:05,968 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 11:33:05,968 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 11:33:05,969 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 11:33:05,970 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 11:33:05,971 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 11:33:05,972 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 11:33:05,973 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 11:33:05,975 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 11:33:05,977 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 11:33:05,979 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 11:33:05,980 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 11:33:05,981 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 11:33:05,982 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 11:33:05,984 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-07 11:33:05,993 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 11:33:05,994 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 11:33:05,994 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 11:33:05,995 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-07 11:33:06,010 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 11:33:06,010 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 11:33:06,011 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-07 11:33:06,011 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-07 11:33:06,012 INFO L138 SettingsManager]: * Use SBE=true [2020-07-07 11:33:06,012 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 11:33:06,012 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 11:33:06,012 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 11:33:06,012 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 11:33:06,013 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 11:33:06,013 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 11:33:06,013 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 11:33:06,013 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 11:33:06,013 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 11:33:06,014 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 11:33:06,014 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 11:33:06,014 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 11:33:06,014 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 11:33:06,015 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-07 11:33:06,015 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 11:33:06,015 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 11:33:06,015 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 11:33:06,015 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 11:33:06,016 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-07 11:33:06,016 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-07 11:33:06,016 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-07 11:33:06,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-07 11:33:06,016 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 11:33:06,017 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-07 11:33:06,017 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-07 11:33:06,288 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 11:33:06,306 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 11:33:06,309 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 11:33:06,311 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 11:33:06,311 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 11:33:06,312 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/trex03-2.c [2020-07-07 11:33:06,393 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6c3cd6e7/131bb3e839c1413f997d2b45a32bd846/FLAG22d61d181 [2020-07-07 11:33:06,873 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 11:33:06,874 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/trex03-2.c [2020-07-07 11:33:06,878 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6c3cd6e7/131bb3e839c1413f997d2b45a32bd846/FLAG22d61d181 [2020-07-07 11:33:07,245 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6c3cd6e7/131bb3e839c1413f997d2b45a32bd846 [2020-07-07 11:33:07,253 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 11:33:07,256 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 11:33:07,257 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 11:33:07,257 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 11:33:07,261 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 11:33:07,262 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 11:33:07" (1/1) ... [2020-07-07 11:33:07,265 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@308002dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:33:07, skipping insertion in model container [2020-07-07 11:33:07,266 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 11:33:07" (1/1) ... [2020-07-07 11:33:07,274 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 11:33:07,297 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 11:33:07,479 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 11:33:07,483 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 11:33:07,500 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 11:33:07,511 INFO L208 MainTranslator]: Completed translation [2020-07-07 11:33:07,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:33:07 WrapperNode [2020-07-07 11:33:07,512 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 11:33:07,512 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 11:33:07,512 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 11:33:07,513 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 11:33:07,524 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:33:07" (1/1) ... [2020-07-07 11:33:07,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:33:07" (1/1) ... [2020-07-07 11:33:07,614 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:33:07" (1/1) ... [2020-07-07 11:33:07,615 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:33:07" (1/1) ... [2020-07-07 11:33:07,621 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:33:07" (1/1) ... [2020-07-07 11:33:07,626 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:33:07" (1/1) ... [2020-07-07 11:33:07,627 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:33:07" (1/1) ... [2020-07-07 11:33:07,629 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 11:33:07,629 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 11:33:07,629 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 11:33:07,629 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 11:33:07,630 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:33:07" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 11:33:07,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 11:33:07,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 11:33:07,700 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-07 11:33:07,700 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 11:33:07,700 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 11:33:07,700 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-07 11:33:07,700 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-07-07 11:33:07,700 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-07-07 11:33:07,701 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 11:33:07,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 11:33:07,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 11:33:07,894 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 11:33:07,894 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-07 11:33:07,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 11:33:07 BoogieIcfgContainer [2020-07-07 11:33:07,898 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 11:33:07,900 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 11:33:07,900 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 11:33:07,903 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 11:33:07,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 11:33:07" (1/3) ... [2020-07-07 11:33:07,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7000d230 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 11:33:07, skipping insertion in model container [2020-07-07 11:33:07,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:33:07" (2/3) ... [2020-07-07 11:33:07,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7000d230 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 11:33:07, skipping insertion in model container [2020-07-07 11:33:07,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 11:33:07" (3/3) ... [2020-07-07 11:33:07,906 INFO L109 eAbstractionObserver]: Analyzing ICFG trex03-2.c [2020-07-07 11:33:07,918 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-07 11:33:07,925 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 11:33:07,940 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 11:33:07,964 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 11:33:07,964 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 11:33:07,964 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-07 11:33:07,965 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 11:33:07,965 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 11:33:07,965 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 11:33:07,965 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 11:33:07,965 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 11:33:07,983 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-07-07 11:33:07,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-07 11:33:07,989 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:33:07,990 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:33:07,991 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:33:07,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:33:07,995 INFO L82 PathProgramCache]: Analyzing trace with hash -859010367, now seen corresponding path program 1 times [2020-07-07 11:33:08,003 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:33:08,003 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544272466] [2020-07-07 11:33:08,004 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:33:08,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:08,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:08,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:33:08,108 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544272466] [2020-07-07 11:33:08,109 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:33:08,109 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-07 11:33:08,110 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587135727] [2020-07-07 11:33:08,114 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-07 11:33:08,115 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:33:08,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-07 11:33:08,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-07 11:33:08,127 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2020-07-07 11:33:08,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:33:08,145 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2020-07-07 11:33:08,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-07 11:33:08,147 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-07-07 11:33:08,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:33:08,153 INFO L225 Difference]: With dead ends: 33 [2020-07-07 11:33:08,153 INFO L226 Difference]: Without dead ends: 14 [2020-07-07 11:33:08,157 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-07 11:33:08,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2020-07-07 11:33:08,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2020-07-07 11:33:08,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-07-07 11:33:08,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2020-07-07 11:33:08,193 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 10 [2020-07-07 11:33:08,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:33:08,193 INFO L479 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2020-07-07 11:33:08,194 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-07 11:33:08,194 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2020-07-07 11:33:08,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-07 11:33:08,195 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:33:08,195 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:33:08,195 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 11:33:08,196 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:33:08,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:33:08,196 INFO L82 PathProgramCache]: Analyzing trace with hash -873786703, now seen corresponding path program 1 times [2020-07-07 11:33:08,197 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:33:08,197 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018269272] [2020-07-07 11:33:08,198 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:33:08,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:08,307 ERROR L253 erpolLogProxyWrapper]: Interpolant 4 not inductive [2020-07-07 11:33:08,310 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 11:33:08,310 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: generated interpolants did not pass sanity check at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:222) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:884) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:385) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:332) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:332) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:191) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:166) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:337) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:239) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-07 11:33:08,316 INFO L168 Benchmark]: Toolchain (without parser) took 1059.92 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 102.8 MB in the beginning and 144.4 MB in the end (delta: -41.6 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2020-07-07 11:33:08,317 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-07 11:33:08,318 INFO L168 Benchmark]: CACSL2BoogieTranslator took 255.13 ms. Allocated memory is still 137.9 MB. Free memory was 102.6 MB in the beginning and 92.9 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2020-07-07 11:33:08,319 INFO L168 Benchmark]: Boogie Preprocessor took 116.47 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 92.9 MB in the beginning and 180.2 MB in the end (delta: -87.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. [2020-07-07 11:33:08,320 INFO L168 Benchmark]: RCFGBuilder took 269.33 ms. Allocated memory is still 201.3 MB. Free memory was 179.5 MB in the beginning and 167.4 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB. [2020-07-07 11:33:08,321 INFO L168 Benchmark]: TraceAbstraction took 413.76 ms. Allocated memory is still 201.3 MB. Free memory was 166.7 MB in the beginning and 144.4 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. [2020-07-07 11:33:08,326 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 255.13 ms. Allocated memory is still 137.9 MB. Free memory was 102.6 MB in the beginning and 92.9 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 116.47 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 92.9 MB in the beginning and 180.2 MB in the end (delta: -87.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 269.33 ms. Allocated memory is still 201.3 MB. Free memory was 179.5 MB in the beginning and 167.4 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 413.76 ms. Allocated memory is still 201.3 MB. Free memory was 166.7 MB in the beginning and 144.4 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: generated interpolants did not pass sanity check de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: generated interpolants did not pass sanity check: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:222) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...