/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 BIGGEST_EQUIVALENCE_CLASS --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/loops/for_bounded_loop1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-20 06:06:21,599 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 06:06:21,601 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 06:06:21,617 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 06:06:21,618 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 06:06:21,619 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 06:06:21,620 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 06:06:21,622 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 06:06:21,624 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 06:06:21,625 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 06:06:21,626 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 06:06:21,627 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 06:06:21,628 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 06:06:21,629 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 06:06:21,630 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 06:06:21,631 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 06:06:21,632 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 06:06:21,635 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 06:06:21,638 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 06:06:21,641 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 06:06:21,643 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 06:06:21,644 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 06:06:21,645 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 06:06:21,646 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 06:06:21,649 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 06:06:21,649 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 06:06:21,649 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 06:06:21,650 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 06:06:21,651 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 06:06:21,652 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 06:06:21,652 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 06:06:21,653 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 06:06:21,654 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 06:06:21,655 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 06:06:21,656 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 06:06:21,656 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 06:06:21,657 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 06:06:21,657 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 06:06:21,657 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 06:06:21,658 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 06:06:21,659 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 06:06:21,660 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 [2020-07-20 06:06:21,689 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 06:06:21,689 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 06:06:21,690 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 06:06:21,691 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 06:06:21,691 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 06:06:21,691 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 06:06:21,692 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 06:06:21,692 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 06:06:21,692 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 06:06:21,692 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 06:06:21,693 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 06:06:21,693 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 06:06:21,693 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 06:06:21,694 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 06:06:21,694 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 06:06:21,694 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 06:06:21,694 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 06:06:21,695 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 06:06:21,695 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 06:06:21,695 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 06:06:21,696 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 06:06:21,696 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 06:06:21,696 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 06:06:21,697 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 06:06:21,697 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 06:06:21,697 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 06:06:21,697 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 06:06:21,698 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 06:06:21,698 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 06:06:21,698 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> BIGGEST_EQUIVALENCE_CLASS 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 [2020-07-20 06:06:22,152 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 06:06:22,172 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 06:06:22,177 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 06:06:22,181 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 06:06:22,182 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 06:06:22,183 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/for_bounded_loop1.c [2020-07-20 06:06:22,299 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2f4bd6c9/2cb83edd248145e9b8f490817218f914/FLAG551b93785 [2020-07-20 06:06:22,928 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 06:06:22,930 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/for_bounded_loop1.c [2020-07-20 06:06:22,941 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2f4bd6c9/2cb83edd248145e9b8f490817218f914/FLAG551b93785 [2020-07-20 06:06:23,276 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2f4bd6c9/2cb83edd248145e9b8f490817218f914 [2020-07-20 06:06:23,292 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 06:06:23,298 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 06:06:23,302 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 06:06:23,303 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 06:06:23,311 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 06:06:23,313 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 06:06:23" (1/1) ... [2020-07-20 06:06:23,319 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7250cabc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:06:23, skipping insertion in model container [2020-07-20 06:06:23,320 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 06:06:23" (1/1) ... [2020-07-20 06:06:23,331 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 06:06:23,366 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 06:06:23,667 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 06:06:23,674 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 06:06:23,698 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 06:06:23,719 INFO L208 MainTranslator]: Completed translation [2020-07-20 06:06:23,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:06:23 WrapperNode [2020-07-20 06:06:23,721 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 06:06:23,724 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 06:06:23,724 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 06:06:23,725 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 06:06:23,744 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:06:23" (1/1) ... [2020-07-20 06:06:23,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:06:23" (1/1) ... [2020-07-20 06:06:23,751 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:06:23" (1/1) ... [2020-07-20 06:06:23,752 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:06:23" (1/1) ... [2020-07-20 06:06:23,758 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:06:23" (1/1) ... [2020-07-20 06:06:23,763 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:06:23" (1/1) ... [2020-07-20 06:06:23,766 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:06:23" (1/1) ... [2020-07-20 06:06:23,880 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 06:06:23,884 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 06:06:23,884 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 06:06:23,884 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 06:06:23,892 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:06:23" (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 [2020-07-20 06:06:24,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 06:06:24,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 06:06:24,013 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-20 06:06:24,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-20 06:06:24,013 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 06:06:24,013 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 06:06:24,013 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-20 06:06:24,014 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-20 06:06:24,014 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-20 06:06:24,014 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 06:06:24,014 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 06:06:24,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 06:06:24,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 06:06:24,376 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 06:06:24,376 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 06:06:24,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 06:06:24 BoogieIcfgContainer [2020-07-20 06:06:24,387 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 06:06:24,390 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 06:06:24,390 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 06:06:24,398 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 06:06:24,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 06:06:23" (1/3) ... [2020-07-20 06:06:24,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38187ceb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 06:06:24, skipping insertion in model container [2020-07-20 06:06:24,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:06:23" (2/3) ... [2020-07-20 06:06:24,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38187ceb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 06:06:24, skipping insertion in model container [2020-07-20 06:06:24,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 06:06:24" (3/3) ... [2020-07-20 06:06:24,407 INFO L109 eAbstractionObserver]: Analyzing ICFG for_bounded_loop1.c [2020-07-20 06:06:24,427 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-20 06:06:24,442 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 06:06:24,468 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 06:06:24,509 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 06:06:24,510 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 06:06:24,510 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-20 06:06:24,511 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 06:06:24,511 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 06:06:24,511 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 06:06:24,511 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 06:06:24,511 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 06:06:24,544 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-07-20 06:06:24,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-20 06:06:24,557 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:06:24,559 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 06:06:24,560 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:06:24,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:06:24,573 INFO L82 PathProgramCache]: Analyzing trace with hash 1474053726, now seen corresponding path program 1 times [2020-07-20 06:06:24,587 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:06:24,588 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260585572] [2020-07-20 06:06:24,588 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3ea64c7e [2020-07-20 06:06:24,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:06:24,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:06:24,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 06:06:24,791 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260585572] [2020-07-20 06:06:24,794 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 06:06:24,795 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-20 06:06:24,797 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311068881] [2020-07-20 06:06:24,806 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-20 06:06:24,807 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:06:24,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-20 06:06:24,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 06:06:24,830 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 2 states. [2020-07-20 06:06:24,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:06:24,869 INFO L93 Difference]: Finished difference Result 40 states and 54 transitions. [2020-07-20 06:06:24,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-20 06:06:24,871 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-07-20 06:06:24,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:06:24,888 INFO L225 Difference]: With dead ends: 40 [2020-07-20 06:06:24,888 INFO L226 Difference]: Without dead ends: 19 [2020-07-20 06:06:24,898 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 [2020-07-20 06:06:24,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-07-20 06:06:24,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-07-20 06:06:24,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-07-20 06:06:24,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2020-07-20 06:06:24,965 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 11 [2020-07-20 06:06:24,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:06:24,966 INFO L479 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2020-07-20 06:06:24,966 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-20 06:06:24,966 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2020-07-20 06:06:24,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-20 06:06:24,968 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:06:24,968 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 06:06:24,969 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-20 06:06:24,970 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:06:24,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:06:24,971 INFO L82 PathProgramCache]: Analyzing trace with hash 1462047953, now seen corresponding path program 1 times [2020-07-20 06:06:24,971 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:06:24,972 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115774445] [2020-07-20 06:06:24,972 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3ea64c7e [2020-07-20 06:06:25,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:06:25,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:06:25,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 06:06:25,065 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115774445] [2020-07-20 06:06:25,066 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 06:06:25,067 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 06:06:25,067 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097344165] [2020-07-20 06:06:25,071 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 06:06:25,072 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:06:25,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 06:06:25,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 06:06:25,073 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 3 states. [2020-07-20 06:06:25,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:06:25,134 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2020-07-20 06:06:25,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 06:06:25,135 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-07-20 06:06:25,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:06:25,137 INFO L225 Difference]: With dead ends: 27 [2020-07-20 06:06:25,137 INFO L226 Difference]: Without dead ends: 20 [2020-07-20 06:06:25,138 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 06:06:25,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-07-20 06:06:25,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-07-20 06:06:25,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-07-20 06:06:25,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2020-07-20 06:06:25,147 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 11 [2020-07-20 06:06:25,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:06:25,147 INFO L479 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2020-07-20 06:06:25,147 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 06:06:25,148 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2020-07-20 06:06:25,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-20 06:06:25,148 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:06:25,148 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 06:06:25,149 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-20 06:06:25,149 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:06:25,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:06:25,150 INFO L82 PathProgramCache]: Analyzing trace with hash 1463775831, now seen corresponding path program 1 times [2020-07-20 06:06:25,150 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:06:25,150 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315193713] [2020-07-20 06:06:25,150 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3ea64c7e [2020-07-20 06:06:25,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:06:25,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:06:25,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 06:06:25,460 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315193713] [2020-07-20 06:06:25,461 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 06:06:25,461 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 06:06:25,463 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135848261] [2020-07-20 06:06:25,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 06:06:25,464 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:06:25,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 06:06:25,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 06:06:25,466 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 6 states. [2020-07-20 06:06:25,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:06:25,608 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2020-07-20 06:06:25,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 06:06:25,610 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-07-20 06:06:25,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:06:25,611 INFO L225 Difference]: With dead ends: 28 [2020-07-20 06:06:25,611 INFO L226 Difference]: Without dead ends: 26 [2020-07-20 06:06:25,612 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-20 06:06:25,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-07-20 06:06:25,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2020-07-20 06:06:25,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-07-20 06:06:25,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2020-07-20 06:06:25,624 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 11 [2020-07-20 06:06:25,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:06:25,625 INFO L479 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2020-07-20 06:06:25,625 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 06:06:25,625 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2020-07-20 06:06:25,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-07-20 06:06:25,626 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:06:25,626 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 06:06:25,626 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-20 06:06:25,627 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:06:25,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:06:25,627 INFO L82 PathProgramCache]: Analyzing trace with hash -541842987, now seen corresponding path program 1 times [2020-07-20 06:06:25,628 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:06:25,628 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401652251] [2020-07-20 06:06:25,628 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3ea64c7e [2020-07-20 06:06:25,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:06:25,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:06:25,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 06:06:25,800 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 06:06:25,801 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401652251] [2020-07-20 06:06:25,802 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 06:06:25,802 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-20 06:06:25,802 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280240151] [2020-07-20 06:06:25,803 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 06:06:25,803 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 06:06:25,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 06:06:25,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-07-20 06:06:25,804 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 7 states. [2020-07-20 06:06:25,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 06:06:25,972 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2020-07-20 06:06:25,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 06:06:25,974 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-07-20 06:06:25,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 06:06:25,976 INFO L225 Difference]: With dead ends: 32 [2020-07-20 06:06:25,976 INFO L226 Difference]: Without dead ends: 28 [2020-07-20 06:06:25,977 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-07-20 06:06:25,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-07-20 06:06:25,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2020-07-20 06:06:25,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-07-20 06:06:25,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2020-07-20 06:06:25,987 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 18 [2020-07-20 06:06:25,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 06:06:25,987 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2020-07-20 06:06:25,988 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 06:06:25,988 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2020-07-20 06:06:25,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-20 06:06:25,989 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 06:06:25,989 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 06:06:25,990 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-20 06:06:25,990 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 06:06:25,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 06:06:25,991 INFO L82 PathProgramCache]: Analyzing trace with hash 814692392, now seen corresponding path program 1 times [2020-07-20 06:06:25,991 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 06:06:25,991 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860700899] [2020-07-20 06:06:25,992 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3ea64c7e [2020-07-20 06:06:26,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 06:06:26,015 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 06:06:26,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 06:06:26,038 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 06:06:26,074 INFO L174 FreeRefinementEngine]: Strategy CAMEL_SMT_AM found a feasible trace [2020-07-20 06:06:26,075 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 06:06:26,075 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-20 06:06:26,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 06:06:26 BoogieIcfgContainer [2020-07-20 06:06:26,107 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 06:06:26,110 INFO L168 Benchmark]: Toolchain (without parser) took 2815.59 ms. Allocated memory was 143.1 MB in the beginning and 201.3 MB in the end (delta: 58.2 MB). Free memory was 101.1 MB in the beginning and 94.8 MB in the end (delta: 6.3 MB). Peak memory consumption was 64.5 MB. Max. memory is 7.1 GB. [2020-07-20 06:06:26,112 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 143.1 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-20 06:06:26,113 INFO L168 Benchmark]: CACSL2BoogieTranslator took 420.30 ms. Allocated memory is still 143.1 MB. Free memory was 100.9 MB in the beginning and 91.2 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-07-20 06:06:26,114 INFO L168 Benchmark]: Boogie Preprocessor took 156.80 ms. Allocated memory was 143.1 MB in the beginning and 201.3 MB in the end (delta: 58.2 MB). Free memory was 91.2 MB in the beginning and 180.9 MB in the end (delta: -89.6 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. [2020-07-20 06:06:26,115 INFO L168 Benchmark]: RCFGBuilder took 503.84 ms. Allocated memory is still 201.3 MB. Free memory was 180.9 MB in the beginning and 166.4 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. [2020-07-20 06:06:26,116 INFO L168 Benchmark]: TraceAbstraction took 1717.41 ms. Allocated memory is still 201.3 MB. Free memory was 166.4 MB in the beginning and 94.8 MB in the end (delta: 71.6 MB). Peak memory consumption was 71.6 MB. Max. memory is 7.1 GB. [2020-07-20 06:06:26,121 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 143.1 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 420.30 ms. Allocated memory is still 143.1 MB. Free memory was 100.9 MB in the beginning and 91.2 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 156.80 ms. Allocated memory was 143.1 MB in the beginning and 201.3 MB in the end (delta: 58.2 MB). Free memory was 91.2 MB in the beginning and 180.9 MB in the end (delta: -89.6 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 503.84 ms. Allocated memory is still 201.3 MB. Free memory was 180.9 MB in the beginning and 166.4 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1717.41 ms. Allocated memory is still 201.3 MB. Free memory was 166.4 MB in the beginning and 94.8 MB in the end (delta: 71.6 MB). Peak memory consumption was 71.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 9]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L17] int i=0, x=0, y=0; [L18] int n=__VERIFIER_nondet_int(); [L19] COND FALSE !(!(n>0)) [L20] i=0 VAL [i=0, n=1, x=0, y=0] [L20] COND TRUE i