/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.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-programs/partial_mod_count_4.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 10:24:46,536 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 10:24:46,539 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 10:24:46,573 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 10:24:46,573 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 10:24:46,575 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 10:24:46,577 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 10:24:46,579 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 10:24:46,582 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 10:24:46,584 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 10:24:46,585 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 10:24:46,587 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 10:24:46,587 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 10:24:46,589 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 10:24:46,591 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 10:24:46,593 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 10:24:46,594 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 10:24:46,596 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 10:24:46,598 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 10:24:46,601 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 10:24:46,604 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 10:24:46,606 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 10:24:46,608 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 10:24:46,609 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 10:24:46,614 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 10:24:46,614 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 10:24:46,615 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 10:24:46,616 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 10:24:46,617 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 10:24:46,619 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 10:24:46,619 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 10:24:46,620 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 10:24:46,622 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 10:24:46,623 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 10:24:46,625 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 10:24:46,626 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 10:24:46,627 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 10:24:46,627 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 10:24:46,627 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 10:24:46,629 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 10:24:46,630 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 10:24:46,631 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-12 10:24:46,682 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 10:24:46,683 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 10:24:46,685 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 10:24:46,688 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 10:24:46,688 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 10:24:46,688 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 10:24:46,689 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 10:24:46,689 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 10:24:46,689 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 10:24:46,689 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 10:24:46,689 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 10:24:46,690 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 10:24:46,690 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 10:24:46,690 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 10:24:46,690 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 10:24:46,690 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 10:24:46,691 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 10:24:46,692 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 10:24:46,693 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 10:24:46,693 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 10:24:46,693 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 10:24:46,693 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 10:24:46,693 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 10:24:46,694 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 10:24:46,695 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 10:24:46,695 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 10:24:46,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 10:24:46,696 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 10:24:46,696 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 10:24:46,696 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 10:24:47,046 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 10:24:47,072 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 10:24:47,079 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 10:24:47,081 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 10:24:47,082 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 10:24:47,083 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-programs/partial_mod_count_4.c [2020-10-12 10:24:47,168 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6e62e011d/e81d29c90a5a4bfb809defbdbc4aa7ee/FLAGebc7b7626 [2020-10-12 10:24:47,717 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 10:24:47,718 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-programs/partial_mod_count_4.c [2020-10-12 10:24:47,726 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6e62e011d/e81d29c90a5a4bfb809defbdbc4aa7ee/FLAGebc7b7626 [2020-10-12 10:24:48,060 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6e62e011d/e81d29c90a5a4bfb809defbdbc4aa7ee [2020-10-12 10:24:48,074 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 10:24:48,077 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 10:24:48,078 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 10:24:48,079 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 10:24:48,083 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 10:24:48,084 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 10:24:48" (1/1) ... [2020-10-12 10:24:48,087 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78a0aa91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:48, skipping insertion in model container [2020-10-12 10:24:48,088 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 10:24:48" (1/1) ... [2020-10-12 10:24:48,098 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 10:24:48,124 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 10:24:48,328 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 10:24:48,335 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 10:24:48,360 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 10:24:48,393 INFO L208 MainTranslator]: Completed translation [2020-10-12 10:24:48,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:48 WrapperNode [2020-10-12 10:24:48,394 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 10:24:48,396 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 10:24:48,396 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 10:24:48,396 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 10:24:48,507 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:48" (1/1) ... [2020-10-12 10:24:48,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:48" (1/1) ... [2020-10-12 10:24:48,518 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:48" (1/1) ... [2020-10-12 10:24:48,518 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:48" (1/1) ... [2020-10-12 10:24:48,529 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:48" (1/1) ... [2020-10-12 10:24:48,537 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:48" (1/1) ... [2020-10-12 10:24:48,538 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:48" (1/1) ... [2020-10-12 10:24:48,540 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 10:24:48,541 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 10:24:48,541 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 10:24:48,541 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 10:24:48,543 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:48" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 10:24:48,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 10:24:48,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 10:24:48,618 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-12 10:24:48,618 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 10:24:48,618 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 10:24:48,618 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-12 10:24:48,618 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 10:24:48,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-12 10:24:48,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-12 10:24:48,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-12 10:24:48,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-12 10:24:48,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 10:24:48,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 10:24:48,922 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 10:24:48,922 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-12 10:24:48,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:24:48 BoogieIcfgContainer [2020-10-12 10:24:48,929 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 10:24:48,930 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 10:24:48,930 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 10:24:48,935 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 10:24:48,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 10:24:48" (1/3) ... [2020-10-12 10:24:48,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@720a3070 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:24:48, skipping insertion in model container [2020-10-12 10:24:48,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:48" (2/3) ... [2020-10-12 10:24:48,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@720a3070 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:24:48, skipping insertion in model container [2020-10-12 10:24:48,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:24:48" (3/3) ... [2020-10-12 10:24:48,940 INFO L109 eAbstractionObserver]: Analyzing ICFG partial_mod_count_4.c [2020-10-12 10:24:48,953 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 10:24:48,964 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 10:24:48,982 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 10:24:49,008 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 10:24:49,008 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 10:24:49,008 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 10:24:49,009 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 10:24:49,009 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 10:24:49,009 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 10:24:49,009 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 10:24:49,009 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 10:24:49,030 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-10-12 10:24:49,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-12 10:24:49,037 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:24:49,038 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:24:49,039 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:24:49,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:24:49,046 INFO L82 PathProgramCache]: Analyzing trace with hash 547567586, now seen corresponding path program 1 times [2020-10-12 10:24:49,056 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:24:49,057 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1900585908] [2020-10-12 10:24:49,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:24:49,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:49,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:49,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:49,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:49,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 10:24:49,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:24:49,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 439 [2020-10-12 10:24:49,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:49,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 10:24:49,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 10:24:49,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 10:24:49,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-10-12 10:24:50,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:24:50,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:50,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:50,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:50,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:24:50,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:24:50,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 10:24:50,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:50,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:24:50,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:24:50,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 10:24:50,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:24:50,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 10:24:50,144 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1900585908] [2020-10-12 10:24:50,148 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 10:24:50,148 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 10:24:50,150 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089688410] [2020-10-12 10:24:50,158 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 10:24:50,158 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:24:50,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 10:24:50,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-12 10:24:50,181 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 8 states. [2020-10-12 10:24:50,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:24:50,636 INFO L93 Difference]: Finished difference Result 59 states and 79 transitions. [2020-10-12 10:24:50,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 10:24:50,639 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2020-10-12 10:24:50,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:24:50,651 INFO L225 Difference]: With dead ends: 59 [2020-10-12 10:24:50,651 INFO L226 Difference]: Without dead ends: 32 [2020-10-12 10:24:50,655 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-12 10:24:50,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-10-12 10:24:50,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-10-12 10:24:50,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-12 10:24:50,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2020-10-12 10:24:50,719 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 14 [2020-10-12 10:24:50,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:24:50,720 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions. [2020-10-12 10:24:50,720 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 10:24:50,721 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2020-10-12 10:24:50,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-12 10:24:50,728 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:24:50,728 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:24:50,729 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 10:24:50,729 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:24:50,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:24:50,730 INFO L82 PathProgramCache]: Analyzing trace with hash -1588214163, now seen corresponding path program 1 times [2020-10-12 10:24:50,730 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:24:50,730 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1083534033] [2020-10-12 10:24:50,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:24:50,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:50,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:50,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:50,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:50,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:51,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:51,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:51,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-12 10:24:51,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 10:24:51,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1246 [2020-10-12 10:24:51,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:51,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 10:24:51,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 10:24:51,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-12 10:24:51,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 10:24:52,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:24:52,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:52,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:52,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:52,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:24:52,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:24:52,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 10:24:52,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:52,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:24:52,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:24:52,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 10:24:52,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-10-12 10:24:52,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 10:24:52,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:52,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:52,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:52,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:24:52,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:24:52,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 10:24:52,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:52,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:24:52,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:24:52,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:24:52,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-12 10:24:52,243 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 10:24:52,243 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1083534033] [2020-10-12 10:24:52,244 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:24:52,244 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-12 10:24:52,244 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713462789] [2020-10-12 10:24:52,248 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 10:24:52,249 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:24:52,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 10:24:52,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-12 10:24:52,250 INFO L87 Difference]: Start difference. First operand 32 states and 38 transitions. Second operand 9 states. [2020-10-12 10:24:52,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:24:52,525 INFO L93 Difference]: Finished difference Result 42 states and 49 transitions. [2020-10-12 10:24:52,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 10:24:52,526 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-10-12 10:24:52,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:24:52,528 INFO L225 Difference]: With dead ends: 42 [2020-10-12 10:24:52,528 INFO L226 Difference]: Without dead ends: 40 [2020-10-12 10:24:52,529 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2020-10-12 10:24:52,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-12 10:24:52,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-10-12 10:24:52,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-12 10:24:52,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 47 transitions. [2020-10-12 10:24:52,539 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 47 transitions. Word has length 22 [2020-10-12 10:24:52,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:24:52,541 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 47 transitions. [2020-10-12 10:24:52,541 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 10:24:52,541 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 47 transitions. [2020-10-12 10:24:52,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-12 10:24:52,542 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:24:52,542 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:24:52,543 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 10:24:52,543 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:24:52,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:24:52,543 INFO L82 PathProgramCache]: Analyzing trace with hash 2013733517, now seen corresponding path program 2 times [2020-10-12 10:24:52,544 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:24:52,544 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1091975552] [2020-10-12 10:24:52,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:24:52,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:52,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:52,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:52,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:52,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:52,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:52,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:54,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:55,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:55,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 10:24:55,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 10:24:55,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3119 [2020-10-12 10:24:55,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:55,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 10:24:55,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 10:24:55,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-12 10:24:55,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:24:55,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:24:55,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:55,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:55,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:55,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:24:55,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:24:55,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 10:24:55,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:55,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:24:55,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:24:55,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 10:24:55,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:24:55,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 10:24:55,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:55,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:55,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:55,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:24:55,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:24:55,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 10:24:55,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:55,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:24:55,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:24:55,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:24:55,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:24:55,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 10:24:55,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:55,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:55,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:55,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:24:55,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:24:55,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 10:24:55,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:55,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:24:55,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:24:55,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:24:55,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:24:55,792 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-12 10:24:55,792 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1091975552] [2020-10-12 10:24:55,792 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:24:55,793 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 10:24:55,793 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535314835] [2020-10-12 10:24:55,793 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 10:24:55,794 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:24:55,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 10:24:55,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-12 10:24:55,794 INFO L87 Difference]: Start difference. First operand 40 states and 47 transitions. Second operand 10 states. [2020-10-12 10:24:56,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:24:56,085 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2020-10-12 10:24:56,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 10:24:56,086 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 30 [2020-10-12 10:24:56,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:24:56,088 INFO L225 Difference]: With dead ends: 50 [2020-10-12 10:24:56,088 INFO L226 Difference]: Without dead ends: 48 [2020-10-12 10:24:56,089 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2020-10-12 10:24:56,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-10-12 10:24:56,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-10-12 10:24:56,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-12 10:24:56,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 56 transitions. [2020-10-12 10:24:56,100 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 56 transitions. Word has length 30 [2020-10-12 10:24:56,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:24:56,100 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 56 transitions. [2020-10-12 10:24:56,100 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 10:24:56,100 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 56 transitions. [2020-10-12 10:24:56,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-12 10:24:56,102 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:24:56,102 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:24:56,102 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 10:24:56,103 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:24:56,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:24:56,103 INFO L82 PathProgramCache]: Analyzing trace with hash 774528685, now seen corresponding path program 3 times [2020-10-12 10:24:56,103 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:24:56,104 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1684093231] [2020-10-12 10:24:56,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:24:56,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:56,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:56,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:56,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:56,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:56,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:56,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:56,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:59,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:01,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:25:01,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 10:25:01,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 10:25:01,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-12 10:25:01,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:25:01,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 10:25:01,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 10:25:01,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-12 10:25:01,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:25:01,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:25:01,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:25:01,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:01,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:25:01,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:25:01,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:25:01,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 10:25:01,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:25:01,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:25:01,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:25:01,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:25:01,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:25:01,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 10:25:01,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:25:01,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:01,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:01,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:25:01,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:25:01,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:25:01,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 10:25:01,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:25:01,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 10:25:01,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 10:25:01,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:25:01,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:25:01,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 10:25:01,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:25:01,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:01,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:01,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:25:01,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:25:01,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:25:01,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 10:25:01,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:25:01,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 10:25:01,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 10:25:01,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:25:01,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:25:01,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-12 10:25:01,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:25:01,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:01,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:25:01,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:25:01,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:25:01,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 10:25:01,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:25:01,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 10:25:01,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 10:25:01,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:25:01,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:25:01,320 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 23 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-12 10:25:01,322 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1684093231] [2020-10-12 10:25:01,322 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:25:01,322 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 10:25:01,323 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192925983] [2020-10-12 10:25:01,323 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 10:25:01,323 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:25:01,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 10:25:01,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-12 10:25:01,325 INFO L87 Difference]: Start difference. First operand 48 states and 56 transitions. Second operand 10 states. [2020-10-12 10:25:01,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:25:01,555 INFO L93 Difference]: Finished difference Result 98 states and 119 transitions. [2020-10-12 10:25:01,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 10:25:01,556 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 38 [2020-10-12 10:25:01,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:25:01,557 INFO L225 Difference]: With dead ends: 98 [2020-10-12 10:25:01,557 INFO L226 Difference]: Without dead ends: 51 [2020-10-12 10:25:01,558 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2020-10-12 10:25:01,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-10-12 10:25:01,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 50. [2020-10-12 10:25:01,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-10-12 10:25:01,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 58 transitions. [2020-10-12 10:25:01,569 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 58 transitions. Word has length 38 [2020-10-12 10:25:01,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:25:01,569 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 58 transitions. [2020-10-12 10:25:01,569 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 10:25:01,569 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 58 transitions. [2020-10-12 10:25:01,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-12 10:25:01,571 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:25:01,571 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:25:01,571 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 10:25:01,571 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:25:01,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:25:01,572 INFO L82 PathProgramCache]: Analyzing trace with hash -1124481880, now seen corresponding path program 1 times [2020-10-12 10:25:01,572 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:25:01,572 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1237211035] [2020-10-12 10:25:01,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:25:01,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:25:01,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:01,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:01,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:01,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:01,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:01,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:01,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:01,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:02,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:02,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:02,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:02,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:06,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:25:06,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-12 10:25:06,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-12 10:25:06,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 10:25:06,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:25:06,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 10:25:06,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 10:25:06,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-12 10:25:06,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:25:06,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:25:06,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:25:06,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:06,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:25:06,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:25:06,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:25:06,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:25:06,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:25:06,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:25:06,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:25:06,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:25:06,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:25:06,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 10:25:06,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:25:06,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:06,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:06,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:25:06,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:25:06,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:25:06,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 10:25:06,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:25:06,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 10:25:06,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 10:25:06,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:25:06,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:25:06,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 10:25:06,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:25:06,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:06,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:06,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:25:06,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:25:06,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:25:06,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 10:25:06,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:25:06,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 10:25:06,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 10:25:06,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:25:06,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:25:06,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-12 10:25:06,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:25:06,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:06,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:25:06,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:25:06,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:25:06,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 10:25:06,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:25:06,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 10:25:06,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 10:25:06,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:25:06,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:25:06,793 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 23 proven. 5 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-12 10:25:06,794 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1237211035] [2020-10-12 10:25:06,794 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:25:06,794 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-12 10:25:06,794 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036298738] [2020-10-12 10:25:06,796 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 10:25:06,796 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:25:06,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 10:25:06,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-10-12 10:25:06,797 INFO L87 Difference]: Start difference. First operand 50 states and 58 transitions. Second operand 11 states. [2020-10-12 10:25:07,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:25:07,071 INFO L93 Difference]: Finished difference Result 103 states and 125 transitions. [2020-10-12 10:25:07,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 10:25:07,072 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 41 [2020-10-12 10:25:07,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:25:07,073 INFO L225 Difference]: With dead ends: 103 [2020-10-12 10:25:07,073 INFO L226 Difference]: Without dead ends: 54 [2020-10-12 10:25:07,075 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2020-10-12 10:25:07,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-12 10:25:07,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 53. [2020-10-12 10:25:07,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-10-12 10:25:07,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 61 transitions. [2020-10-12 10:25:07,090 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 61 transitions. Word has length 41 [2020-10-12 10:25:07,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:25:07,091 INFO L479 AbstractCegarLoop]: Abstraction has 53 states and 61 transitions. [2020-10-12 10:25:07,091 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 10:25:07,091 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 61 transitions. [2020-10-12 10:25:07,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-12 10:25:07,094 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:25:07,095 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:25:07,095 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 10:25:07,095 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:25:07,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:25:07,095 INFO L82 PathProgramCache]: Analyzing trace with hash -1239000883, now seen corresponding path program 2 times [2020-10-12 10:25:07,096 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:25:07,096 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1802038869] [2020-10-12 10:25:07,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:25:07,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:25:07,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:07,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:07,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:07,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:07,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:07,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:07,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:07,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:12,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:25:12,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-12 10:25:12,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 10:25:12,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-12 10:25:12,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:25:12,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 10:25:12,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 10:25:12,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-12 10:25:12,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:25:12,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:25:12,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:25:12,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:12,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:25:12,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:25:12,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:25:12,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:25:12,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:25:12,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:25:12,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:25:12,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:25:12,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:25:12,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 10:25:12,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:25:12,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:12,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:12,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:25:12,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:25:12,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:25:12,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 10:25:12,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:25:12,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 10:25:12,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 10:25:12,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:25:12,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:25:12,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-12 10:25:12,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:25:12,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:12,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:12,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:25:12,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:25:12,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:25:12,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 10:25:12,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:25:12,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 10:25:12,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 10:25:12,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:25:12,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:25:12,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-12 10:25:12,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:25:12,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:12,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:25:12,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:25:12,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:25:12,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 10:25:12,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:25:12,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 10:25:12,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 10:25:12,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:25:12,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:25:12,451 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 27 proven. 5 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-12 10:25:12,452 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1802038869] [2020-10-12 10:25:12,453 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:25:12,453 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 10:25:12,453 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976765254] [2020-10-12 10:25:12,454 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 10:25:12,454 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:25:12,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 10:25:12,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-12 10:25:12,455 INFO L87 Difference]: Start difference. First operand 53 states and 61 transitions. Second operand 13 states. [2020-10-12 10:25:12,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:25:12,822 INFO L93 Difference]: Finished difference Result 132 states and 167 transitions. [2020-10-12 10:25:12,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 10:25:12,823 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 44 [2020-10-12 10:25:12,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:25:12,824 INFO L225 Difference]: With dead ends: 132 [2020-10-12 10:25:12,825 INFO L226 Difference]: Without dead ends: 89 [2020-10-12 10:25:12,826 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2020-10-12 10:25:12,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-10-12 10:25:12,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 55. [2020-10-12 10:25:12,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-12 10:25:12,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 63 transitions. [2020-10-12 10:25:12,839 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 63 transitions. Word has length 44 [2020-10-12 10:25:12,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:25:12,840 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 63 transitions. [2020-10-12 10:25:12,840 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 10:25:12,840 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 63 transitions. [2020-10-12 10:25:12,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-12 10:25:12,841 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:25:12,841 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:25:12,841 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 10:25:12,842 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:25:12,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:25:12,842 INFO L82 PathProgramCache]: Analyzing trace with hash -426602934, now seen corresponding path program 1 times [2020-10-12 10:25:12,842 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:25:12,843 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1792310698] [2020-10-12 10:25:12,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:25:12,852 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-12 10:25:12,853 WARN L168 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-10-12 10:25:12,853 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-12 10:25:12,858 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 10:25:12,877 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-12 10:25:12,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 10:25:12 BoogieIcfgContainer [2020-10-12 10:25:12,877 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 10:25:12,880 INFO L168 Benchmark]: Toolchain (without parser) took 24803.24 ms. Allocated memory was 138.9 MB in the beginning and 483.9 MB in the end (delta: 345.0 MB). Free memory was 102.0 MB in the beginning and 129.3 MB in the end (delta: -27.3 MB). Peak memory consumption was 317.7 MB. Max. memory is 7.1 GB. [2020-10-12 10:25:12,881 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-12 10:25:12,882 INFO L168 Benchmark]: CACSL2BoogieTranslator took 316.60 ms. Allocated memory is still 138.9 MB. Free memory was 101.8 MB in the beginning and 91.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2020-10-12 10:25:12,883 INFO L168 Benchmark]: Boogie Preprocessor took 145.03 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 91.3 MB in the beginning and 180.3 MB in the end (delta: -89.0 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. [2020-10-12 10:25:12,884 INFO L168 Benchmark]: RCFGBuilder took 387.59 ms. Allocated memory is still 202.9 MB. Free memory was 180.3 MB in the beginning and 165.2 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 7.1 GB. [2020-10-12 10:25:12,885 INFO L168 Benchmark]: TraceAbstraction took 23947.47 ms. Allocated memory was 202.9 MB in the beginning and 483.9 MB in the end (delta: 281.0 MB). Free memory was 164.5 MB in the beginning and 129.3 MB in the end (delta: 35.2 MB). Peak memory consumption was 316.2 MB. Max. memory is 7.1 GB. [2020-10-12 10:25:12,888 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 316.60 ms. Allocated memory is still 138.9 MB. Free memory was 101.8 MB in the beginning and 91.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 145.03 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 91.3 MB in the beginning and 180.3 MB in the end (delta: -89.0 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 387.59 ms. Allocated memory is still 202.9 MB. Free memory was 180.3 MB in the beginning and 165.2 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 23947.47 ms. Allocated memory was 202.9 MB in the beginning and 483.9 MB in the end (delta: 281.0 MB). Free memory was 164.5 MB in the beginning and 129.3 MB in the end (delta: 35.2 MB). Peak memory consumption was 316.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 2]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L4] int N = 1000000; [L6] int i,j=0,a[N]; [L7] unsigned int R=4; [L8] i=0 [L8] COND TRUE iN/2) [L8] i++ [L8] COND TRUE iN/2) [L8] i++ [L8] COND TRUE iN/2 [L11] a[i]=i%R [L8] i++ [L8] COND FALSE !(i