/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/array-fpi/brs3f.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 12:14:27,304 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 12:14:27,307 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 12:14:27,325 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 12:14:27,326 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 12:14:27,329 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 12:14:27,331 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 12:14:27,340 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 12:14:27,344 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 12:14:27,348 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 12:14:27,350 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 12:14:27,352 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 12:14:27,352 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 12:14:27,354 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 12:14:27,356 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 12:14:27,357 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 12:14:27,359 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 12:14:27,359 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 12:14:27,361 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 12:14:27,365 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 12:14:27,371 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 12:14:27,375 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 12:14:27,376 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 12:14:27,377 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 12:14:27,379 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 12:14:27,382 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-17 12:14:27,382 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-17 12:14:27,383 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-17 12:14:27,384 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-17 12:14:27,384 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-17 12:14:27,385 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-17 12:14:27,385 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-17 12:14:27,385 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-17 12:14:27,386 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 12:14:27,386 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 12:14:27,387 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 12:14:27,388 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 [2020-07-17 12:14:27,402 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 12:14:27,402 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 12:14:27,403 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-17 12:14:27,404 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-17 12:14:27,404 INFO L138 SettingsManager]: * Use SBE=true [2020-07-17 12:14:27,404 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 12:14:27,404 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 12:14:27,404 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 12:14:27,405 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 12:14:27,405 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 12:14:27,405 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 12:14:27,405 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 12:14:27,405 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 12:14:27,406 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 12:14:27,406 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 12:14:27,406 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 12:14:27,406 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 12:14:27,406 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 12:14:27,407 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-17 12:14:27,407 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 12:14:27,407 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 12:14:27,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 12:14:27,407 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 12:14:27,408 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-17 12:14:27,408 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-17 12:14:27,408 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-17 12:14:27,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-17 12:14:27,408 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 12:14:27,408 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-17 12:14:27,409 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-17 12:14:27,690 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 12:14:27,704 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 12:14:27,707 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 12:14:27,709 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 12:14:27,710 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 12:14:27,710 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/brs3f.c [2020-07-17 12:14:27,790 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d4cb5674/519c663bf70a4f0da5ac04808c90a8dd/FLAG80a605dec [2020-07-17 12:14:28,314 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 12:14:28,315 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/brs3f.c [2020-07-17 12:14:28,322 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d4cb5674/519c663bf70a4f0da5ac04808c90a8dd/FLAG80a605dec [2020-07-17 12:14:28,682 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d4cb5674/519c663bf70a4f0da5ac04808c90a8dd [2020-07-17 12:14:28,693 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 12:14:28,696 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 12:14:28,697 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 12:14:28,697 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 12:14:28,701 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 12:14:28,702 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 12:14:28" (1/1) ... [2020-07-17 12:14:28,706 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63745e6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:14:28, skipping insertion in model container [2020-07-17 12:14:28,706 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 12:14:28" (1/1) ... [2020-07-17 12:14:28,714 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 12:14:28,734 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 12:14:28,904 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 12:14:28,914 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 12:14:28,936 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 12:14:28,954 INFO L208 MainTranslator]: Completed translation [2020-07-17 12:14:28,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:14:28 WrapperNode [2020-07-17 12:14:28,955 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 12:14:28,956 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 12:14:28,956 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 12:14:28,956 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 12:14:29,064 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:14:28" (1/1) ... [2020-07-17 12:14:29,064 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:14:28" (1/1) ... [2020-07-17 12:14:29,073 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:14:28" (1/1) ... [2020-07-17 12:14:29,073 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:14:28" (1/1) ... [2020-07-17 12:14:29,080 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:14:28" (1/1) ... [2020-07-17 12:14:29,090 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:14:28" (1/1) ... [2020-07-17 12:14:29,092 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:14:28" (1/1) ... [2020-07-17 12:14:29,094 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 12:14:29,095 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 12:14:29,095 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 12:14:29,095 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 12:14:29,096 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:14:28" (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 [2020-07-17 12:14:29,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 12:14:29,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 12:14:29,173 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-17 12:14:29,173 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-17 12:14:29,173 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 12:14:29,173 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 12:14:29,173 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-17 12:14:29,174 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-17 12:14:29,174 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-17 12:14:29,174 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 12:14:29,174 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-17 12:14:29,174 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 12:14:29,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 12:14:29,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-17 12:14:29,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 12:14:29,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 12:14:29,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 12:14:29,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 12:14:29,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 12:14:29,460 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 12:14:29,460 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-07-17 12:14:29,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 12:14:29 BoogieIcfgContainer [2020-07-17 12:14:29,464 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 12:14:29,466 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 12:14:29,466 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 12:14:29,469 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 12:14:29,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 12:14:28" (1/3) ... [2020-07-17 12:14:29,471 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a14a32a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 12:14:29, skipping insertion in model container [2020-07-17 12:14:29,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:14:28" (2/3) ... [2020-07-17 12:14:29,471 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a14a32a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 12:14:29, skipping insertion in model container [2020-07-17 12:14:29,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 12:14:29" (3/3) ... [2020-07-17 12:14:29,474 INFO L109 eAbstractionObserver]: Analyzing ICFG brs3f.c [2020-07-17 12:14:29,484 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-17 12:14:29,496 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 12:14:29,515 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 12:14:29,539 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 12:14:29,539 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 12:14:29,539 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-17 12:14:29,539 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 12:14:29,539 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 12:14:29,539 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 12:14:29,539 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 12:14:29,539 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 12:14:29,556 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-07-17 12:14:29,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-07-17 12:14:29,562 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:14:29,563 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] [2020-07-17 12:14:29,563 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:14:29,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:14:29,570 INFO L82 PathProgramCache]: Analyzing trace with hash 1824292310, now seen corresponding path program 1 times [2020-07-17 12:14:29,577 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:14:29,577 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456736046] [2020-07-17 12:14:29,578 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:14:29,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:14:29,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:14:29,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:14:29,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 12:14:29,786 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456736046] [2020-07-17 12:14:29,787 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 12:14:29,787 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 12:14:29,788 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470552040] [2020-07-17 12:14:29,793 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 12:14:29,794 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:14:29,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 12:14:29,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 12:14:29,812 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 3 states. [2020-07-17 12:14:29,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:14:29,931 INFO L93 Difference]: Finished difference Result 56 states and 71 transitions. [2020-07-17 12:14:29,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 12:14:29,933 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-07-17 12:14:29,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:14:29,943 INFO L225 Difference]: With dead ends: 56 [2020-07-17 12:14:29,943 INFO L226 Difference]: Without dead ends: 26 [2020-07-17 12:14:29,947 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 12:14:29,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-07-17 12:14:29,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-07-17 12:14:29,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-07-17 12:14:29,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2020-07-17 12:14:29,990 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 21 [2020-07-17 12:14:29,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:14:29,991 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2020-07-17 12:14:29,991 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 12:14:29,991 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2020-07-17 12:14:29,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-07-17 12:14:29,992 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:14:29,993 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] [2020-07-17 12:14:29,993 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 12:14:29,993 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:14:29,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:14:29,994 INFO L82 PathProgramCache]: Analyzing trace with hash 1767537087, now seen corresponding path program 1 times [2020-07-17 12:14:29,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:14:29,995 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966763686] [2020-07-17 12:14:29,995 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:14:30,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:14:30,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:14:30,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:14:30,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 12:14:30,116 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966763686] [2020-07-17 12:14:30,116 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 12:14:30,117 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-17 12:14:30,117 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572867] [2020-07-17 12:14:30,119 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-17 12:14:30,119 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:14:30,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-17 12:14:30,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-17 12:14:30,120 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand 5 states. [2020-07-17 12:14:30,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:14:30,233 INFO L93 Difference]: Finished difference Result 45 states and 55 transitions. [2020-07-17 12:14:30,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-17 12:14:30,234 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-07-17 12:14:30,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:14:30,236 INFO L225 Difference]: With dead ends: 45 [2020-07-17 12:14:30,236 INFO L226 Difference]: Without dead ends: 32 [2020-07-17 12:14:30,237 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-17 12:14:30,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-07-17 12:14:30,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2020-07-17 12:14:30,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-07-17 12:14:30,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2020-07-17 12:14:30,247 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 21 [2020-07-17 12:14:30,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:14:30,247 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2020-07-17 12:14:30,247 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-17 12:14:30,248 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2020-07-17 12:14:30,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-07-17 12:14:30,249 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:14:30,249 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] [2020-07-17 12:14:30,249 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 12:14:30,249 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:14:30,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:14:30,250 INFO L82 PathProgramCache]: Analyzing trace with hash -395878216, now seen corresponding path program 1 times [2020-07-17 12:14:30,250 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:14:30,250 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287395727] [2020-07-17 12:14:30,251 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:14:30,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:14:30,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:14:30,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:14:30,439 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-17 12:14:30,439 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287395727] [2020-07-17 12:14:30,440 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 12:14:30,440 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-17 12:14:30,440 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016258035] [2020-07-17 12:14:30,441 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-17 12:14:30,441 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:14:30,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-17 12:14:30,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-07-17 12:14:30,442 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand 8 states. [2020-07-17 12:14:30,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:14:30,671 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2020-07-17 12:14:30,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-17 12:14:30,672 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2020-07-17 12:14:30,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:14:30,673 INFO L225 Difference]: With dead ends: 39 [2020-07-17 12:14:30,673 INFO L226 Difference]: Without dead ends: 33 [2020-07-17 12:14:30,674 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-07-17 12:14:30,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-07-17 12:14:30,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2020-07-17 12:14:30,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-07-17 12:14:30,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2020-07-17 12:14:30,682 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 27 [2020-07-17 12:14:30,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:14:30,683 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2020-07-17 12:14:30,683 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-17 12:14:30,683 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2020-07-17 12:14:30,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-17 12:14:30,684 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:14:30,685 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-07-17 12:14:30,685 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-17 12:14:30,685 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:14:30,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:14:30,686 INFO L82 PathProgramCache]: Analyzing trace with hash 1239476407, now seen corresponding path program 1 times [2020-07-17 12:14:30,686 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:14:30,686 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105499412] [2020-07-17 12:14:30,686 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:14:30,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:14:30,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:14:30,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:14:30,796 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 12:14:30,796 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105499412] [2020-07-17 12:14:30,797 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1683158016] [2020-07-17 12:14:30,797 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:14:30,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:14:30,864 INFO L264 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-17 12:14:30,872 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 12:14:30,968 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 12:14:30,970 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-17 12:14:30,971 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 11 [2020-07-17 12:14:30,971 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651244424] [2020-07-17 12:14:30,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-17 12:14:30,972 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:14:30,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-17 12:14:30,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-07-17 12:14:30,973 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand 11 states. [2020-07-17 12:14:31,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:14:31,202 INFO L93 Difference]: Finished difference Result 55 states and 62 transitions. [2020-07-17 12:14:31,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-17 12:14:31,202 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 30 [2020-07-17 12:14:31,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:14:31,204 INFO L225 Difference]: With dead ends: 55 [2020-07-17 12:14:31,205 INFO L226 Difference]: Without dead ends: 39 [2020-07-17 12:14:31,205 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2020-07-17 12:14:31,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-07-17 12:14:31,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 35. [2020-07-17 12:14:31,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-07-17 12:14:31,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2020-07-17 12:14:31,221 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 30 [2020-07-17 12:14:31,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:14:31,222 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2020-07-17 12:14:31,222 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-17 12:14:31,222 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2020-07-17 12:14:31,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-07-17 12:14:31,225 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:14:31,226 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-07-17 12:14:31,438 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:14:31,439 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:14:31,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:14:31,439 INFO L82 PathProgramCache]: Analyzing trace with hash 1492634651, now seen corresponding path program 1 times [2020-07-17 12:14:31,440 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:14:31,440 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098965713] [2020-07-17 12:14:31,440 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:14:31,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 12:14:31,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 12:14:31,632 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-17 12:14:31,633 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 12:14:31,633 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-17 12:14:31,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 12:14:31 BoogieIcfgContainer [2020-07-17 12:14:31,674 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 12:14:31,677 INFO L168 Benchmark]: Toolchain (without parser) took 2981.83 ms. Allocated memory was 145.8 MB in the beginning and 237.0 MB in the end (delta: 91.2 MB). Free memory was 102.4 MB in the beginning and 130.5 MB in the end (delta: -28.1 MB). Peak memory consumption was 63.1 MB. Max. memory is 7.1 GB. [2020-07-17 12:14:31,678 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 145.8 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-17 12:14:31,679 INFO L168 Benchmark]: CACSL2BoogieTranslator took 258.56 ms. Allocated memory is still 145.8 MB. Free memory was 102.0 MB in the beginning and 91.6 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-07-17 12:14:31,680 INFO L168 Benchmark]: Boogie Preprocessor took 138.48 ms. Allocated memory was 145.8 MB in the beginning and 203.9 MB in the end (delta: 58.2 MB). Free memory was 91.6 MB in the beginning and 181.4 MB in the end (delta: -89.8 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-07-17 12:14:31,681 INFO L168 Benchmark]: RCFGBuilder took 369.91 ms. Allocated memory is still 203.9 MB. Free memory was 181.4 MB in the beginning and 164.5 MB in the end (delta: 16.9 MB). Peak memory consumption was 16.9 MB. Max. memory is 7.1 GB. [2020-07-17 12:14:31,682 INFO L168 Benchmark]: TraceAbstraction took 2208.58 ms. Allocated memory was 203.9 MB in the beginning and 237.0 MB in the end (delta: 33.0 MB). Free memory was 164.5 MB in the beginning and 130.5 MB in the end (delta: 34.0 MB). Peak memory consumption was 67.0 MB. Max. memory is 7.1 GB. [2020-07-17 12:14:31,687 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 145.8 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 258.56 ms. Allocated memory is still 145.8 MB. Free memory was 102.0 MB in the beginning and 91.6 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 138.48 ms. Allocated memory was 145.8 MB in the beginning and 203.9 MB in the end (delta: 58.2 MB). Free memory was 91.6 MB in the beginning and 181.4 MB in the end (delta: -89.8 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 369.91 ms. Allocated memory is still 203.9 MB. Free memory was 181.4 MB in the beginning and 164.5 MB in the end (delta: 16.9 MB). Peak memory consumption was 16.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2208.58 ms. Allocated memory was 203.9 MB in the beginning and 237.0 MB in the end (delta: 33.0 MB). Free memory was 164.5 MB in the beginning and 130.5 MB in the end (delta: 34.0 MB). Peak memory consumption was 67.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 13]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L17] int N; VAL [\old(N)=32, N=0] [L21] N = __VERIFIER_nondet_int() [L22] COND FALSE !(N <= 0) VAL [\old(N)=0, N=2] [L23] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) VAL [\old(cond)=1, \old(N)=0, N=2] [L11] COND FALSE !(!cond) VAL [\old(cond)=1, \old(N)=0, cond=1, N=2] [L23] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) VAL [\old(N)=0, N=2] [L25] int i; [L26] long long sum[1]; [L27] int *a = malloc(sizeof(int)*N); [L29] i=0 VAL [\old(N)=0, a={-1:0}, i=0, malloc(sizeof(int)*N)={-1:0}, N=2, sum={2:0}] [L29] COND TRUE i