/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 --traceabstraction.trace.refinement.strategy CAMEL_SMT_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invariants/odd.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-19 23:47:22,336 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-19 23:47:22,338 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-19 23:47:22,350 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-19 23:47:22,351 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-19 23:47:22,352 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-19 23:47:22,353 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-19 23:47:22,355 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-19 23:47:22,357 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-19 23:47:22,358 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-19 23:47:22,358 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-19 23:47:22,360 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-19 23:47:22,360 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-19 23:47:22,361 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-19 23:47:22,362 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-19 23:47:22,363 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-19 23:47:22,364 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-19 23:47:22,365 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-19 23:47:22,367 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-19 23:47:22,369 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-19 23:47:22,370 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-19 23:47:22,372 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-19 23:47:22,373 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-19 23:47:22,374 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-19 23:47:22,376 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-19 23:47:22,384 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-19 23:47:22,385 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-19 23:47:22,386 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-19 23:47:22,387 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-19 23:47:22,402 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-19 23:47:22,402 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-19 23:47:22,403 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-19 23:47:22,403 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-19 23:47:22,404 INFO L138 SettingsManager]: * Use SBE=true [2020-07-19 23:47:22,404 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-19 23:47:22,404 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-19 23:47:22,404 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-19 23:47:22,404 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-19 23:47:22,405 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-19 23:47:22,405 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-19 23:47:22,405 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-19 23:47:22,405 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-19 23:47:22,405 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-19 23:47:22,406 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-19 23:47:22,406 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-19 23:47:22,406 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-19 23:47:22,406 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-19 23:47:22,406 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-19 23:47:22,407 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-19 23:47:22,407 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-19 23:47:22,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 23:47:22,407 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-19 23:47:22,408 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-19 23:47:22,408 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-19 23:47:22,408 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-19 23:47:22,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-19 23:47:22,408 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-19 23:47:22,408 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-19 23:47:22,409 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_SMT_AM [2020-07-19 23:47:22,704 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-19 23:47:22,717 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-19 23:47:22,721 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-19 23:47:22,722 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-19 23:47:22,723 INFO L275 PluginConnector]: CDTParser initialized [2020-07-19 23:47:22,724 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invariants/odd.c [2020-07-19 23:47:22,785 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67ddf4399/2ab5e82f5fcc4434b5446621af996550/FLAGc89471794 [2020-07-19 23:47:23,199 INFO L306 CDTParser]: Found 1 translation units. [2020-07-19 23:47:23,200 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invariants/odd.c [2020-07-19 23:47:23,206 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67ddf4399/2ab5e82f5fcc4434b5446621af996550/FLAGc89471794 [2020-07-19 23:47:23,575 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67ddf4399/2ab5e82f5fcc4434b5446621af996550 [2020-07-19 23:47:23,585 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-19 23:47:23,589 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-19 23:47:23,590 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-19 23:47:23,590 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-19 23:47:23,593 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-19 23:47:23,594 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:47:23" (1/1) ... [2020-07-19 23:47:23,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d56b154 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:47:23, skipping insertion in model container [2020-07-19 23:47:23,597 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:47:23" (1/1) ... [2020-07-19 23:47:23,605 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-19 23:47:23,620 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-19 23:47:23,768 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 23:47:23,772 INFO L203 MainTranslator]: Completed pre-run [2020-07-19 23:47:23,789 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 23:47:23,804 INFO L208 MainTranslator]: Completed translation [2020-07-19 23:47:23,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:47:23 WrapperNode [2020-07-19 23:47:23,804 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-19 23:47:23,805 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-19 23:47:23,805 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-19 23:47:23,805 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-19 23:47:23,819 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:47:23" (1/1) ... [2020-07-19 23:47:23,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:47:23" (1/1) ... [2020-07-19 23:47:23,824 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:47:23" (1/1) ... [2020-07-19 23:47:23,825 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:47:23" (1/1) ... [2020-07-19 23:47:23,828 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:47:23" (1/1) ... [2020-07-19 23:47:23,833 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:47:23" (1/1) ... [2020-07-19 23:47:23,834 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:47:23" (1/1) ... [2020-07-19 23:47:23,916 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-19 23:47:23,916 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-19 23:47:23,916 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-19 23:47:23,917 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-19 23:47:23,918 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:47:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 23:47:23,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-19 23:47:23,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-19 23:47:23,991 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-19 23:47:23,991 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-19 23:47:23,991 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-19 23:47:23,991 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-19 23:47:23,992 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-19 23:47:23,992 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-19 23:47:23,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-19 23:47:23,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-19 23:47:24,162 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-19 23:47:24,162 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-19 23:47:24,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:47:24 BoogieIcfgContainer [2020-07-19 23:47:24,166 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-19 23:47:24,167 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-19 23:47:24,167 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-19 23:47:24,170 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-19 23:47:24,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 11:47:23" (1/3) ... [2020-07-19 23:47:24,171 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7062a6fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:47:24, skipping insertion in model container [2020-07-19 23:47:24,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:47:23" (2/3) ... [2020-07-19 23:47:24,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7062a6fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:47:24, skipping insertion in model container [2020-07-19 23:47:24,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:47:24" (3/3) ... [2020-07-19 23:47:24,174 INFO L109 eAbstractionObserver]: Analyzing ICFG odd.c [2020-07-19 23:47:24,184 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-19 23:47:24,192 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-19 23:47:24,205 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-19 23:47:24,227 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-19 23:47:24,227 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-19 23:47:24,227 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-19 23:47:24,228 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-19 23:47:24,228 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-19 23:47:24,228 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-19 23:47:24,228 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-19 23:47:24,228 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-19 23:47:24,244 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2020-07-19 23:47:24,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-19 23:47:24,249 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:47:24,250 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:47:24,250 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:47:24,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:47:24,256 INFO L82 PathProgramCache]: Analyzing trace with hash -1871509567, now seen corresponding path program 1 times [2020-07-19 23:47:24,266 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:47:24,266 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710978489] [2020-07-19 23:47:24,267 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@52bf5112 [2020-07-19 23:47:24,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:47:24,362 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710978489] [2020-07-19 23:47:24,363 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 23:47:24,363 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-19 23:47:24,364 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786921269] [2020-07-19 23:47:24,369 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-19 23:47:24,369 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:47:24,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-19 23:47:24,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-19 23:47:24,386 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2020-07-19 23:47:24,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:47:24,408 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2020-07-19 23:47:24,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-19 23:47:24,410 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-07-19 23:47:24,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:47:24,418 INFO L225 Difference]: With dead ends: 31 [2020-07-19 23:47:24,418 INFO L226 Difference]: Without dead ends: 12 [2020-07-19 23:47:24,422 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 [2020-07-19 23:47:24,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-07-19 23:47:24,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-07-19 23:47:24,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-07-19 23:47:24,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2020-07-19 23:47:24,460 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2020-07-19 23:47:24,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:47:24,461 INFO L479 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2020-07-19 23:47:24,461 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-19 23:47:24,461 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2020-07-19 23:47:24,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-19 23:47:24,462 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:47:24,462 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:47:24,463 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-19 23:47:24,463 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:47:24,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:47:24,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1890620952, now seen corresponding path program 1 times [2020-07-19 23:47:24,464 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:47:24,464 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60821807] [2020-07-19 23:47:24,464 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@52bf5112 [2020-07-19 23:47:24,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,589 ERROR L253 erpolLogProxyWrapper]: Interpolant 5 not inductive [2020-07-19 23:47:24,591 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-19 23:47:24,592 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:219) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:874) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:392) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:386) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) 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:326) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) 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$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-19 23:47:24,598 INFO L168 Benchmark]: Toolchain (without parser) took 1010.02 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 103.2 MB in the beginning and 147.8 MB in the end (delta: -44.6 MB). Peak memory consumption was 19.8 MB. Max. memory is 7.1 GB. [2020-07-19 23:47:24,599 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-19 23:47:24,600 INFO L168 Benchmark]: CACSL2BoogieTranslator took 215.05 ms. Allocated memory is still 138.4 MB. Free memory was 103.0 MB in the beginning and 93.6 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2020-07-19 23:47:24,601 INFO L168 Benchmark]: Boogie Preprocessor took 110.80 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 93.6 MB in the beginning and 183.0 MB in the end (delta: -89.4 MB). Peak memory consumption was 14.9 MB. Max. memory is 7.1 GB. [2020-07-19 23:47:24,602 INFO L168 Benchmark]: RCFGBuilder took 249.47 ms. Allocated memory is still 202.9 MB. Free memory was 183.0 MB in the beginning and 171.3 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. [2020-07-19 23:47:24,603 INFO L168 Benchmark]: TraceAbstraction took 428.31 ms. Allocated memory is still 202.9 MB. Free memory was 170.6 MB in the beginning and 147.8 MB in the end (delta: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. [2020-07-19 23:47:24,608 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 215.05 ms. Allocated memory is still 138.4 MB. Free memory was 103.0 MB in the beginning and 93.6 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 110.80 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 93.6 MB in the beginning and 183.0 MB in the end (delta: -89.4 MB). Peak memory consumption was 14.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 249.47 ms. Allocated memory is still 202.9 MB. Free memory was 183.0 MB in the beginning and 171.3 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 428.31 ms. Allocated memory is still 202.9 MB. Free memory was 170.6 MB in the beginning and 147.8 MB in the end (delta: 22.8 MB). Peak memory consumption was 22.8 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:219) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...