/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_5.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 10:24:54,384 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 10:24:54,387 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 10:24:54,430 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 10:24:54,430 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 10:24:54,439 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 10:24:54,441 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 10:24:54,445 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 10:24:54,448 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 10:24:54,451 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 10:24:54,452 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 10:24:54,453 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 10:24:54,453 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 10:24:54,455 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 10:24:54,459 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 10:24:54,461 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 10:24:54,463 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 10:24:54,464 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 10:24:54,465 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 10:24:54,474 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 10:24:54,476 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 10:24:54,477 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 10:24:54,478 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 10:24:54,479 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 10:24:54,492 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 10:24:54,492 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 10:24:54,492 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 10:24:54,500 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 10:24:54,500 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 10:24:54,501 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 10:24:54,501 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 10:24:54,504 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 10:24:54,505 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 10:24:54,506 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 10:24:54,507 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 10:24:54,510 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 10:24:54,511 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 10:24:54,511 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 10:24:54,512 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 10:24:54,512 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 10:24:54,513 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 10:24:54,515 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 10:24:54,556 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 10:24:54,556 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 10:24:54,558 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 10:24:54,559 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 10:24:54,559 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 10:24:54,559 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 10:24:54,560 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 10:24:54,560 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 10:24:54,560 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 10:24:54,560 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 10:24:54,561 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 10:24:54,561 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 10:24:54,562 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 10:24:54,562 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 10:24:54,562 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 10:24:54,562 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 10:24:54,563 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 10:24:54,563 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 10:24:54,563 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 10:24:54,563 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 10:24:54,564 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 10:24:54,564 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 10:24:54,564 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 10:24:54,564 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 10:24:54,564 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 10:24:54,565 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 10:24:54,565 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 10:24:54,565 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 10:24:54,565 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 10:24:54,565 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 10:24:54,884 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 10:24:54,902 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 10:24:54,908 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 10:24:54,910 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 10:24:54,910 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 10:24:54,911 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-programs/partial_mod_count_5.c [2020-10-12 10:24:54,973 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0fb99ae67/0bff5abee38140d99f18350bd6fd391c/FLAG46bd93e9a [2020-10-12 10:24:55,456 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 10:24:55,457 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-programs/partial_mod_count_5.c [2020-10-12 10:24:55,463 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0fb99ae67/0bff5abee38140d99f18350bd6fd391c/FLAG46bd93e9a [2020-10-12 10:24:55,843 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0fb99ae67/0bff5abee38140d99f18350bd6fd391c [2020-10-12 10:24:55,852 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 10:24:55,854 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 10:24:55,855 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 10:24:55,855 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 10:24:55,860 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 10:24:55,861 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 10:24:55" (1/1) ... [2020-10-12 10:24:55,864 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@574ab8b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:55, skipping insertion in model container [2020-10-12 10:24:55,864 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 10:24:55" (1/1) ... [2020-10-12 10:24:55,877 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 10:24:55,899 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 10:24:56,066 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 10:24:56,071 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 10:24:56,091 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 10:24:56,112 INFO L208 MainTranslator]: Completed translation [2020-10-12 10:24:56,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:56 WrapperNode [2020-10-12 10:24:56,113 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 10:24:56,113 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 10:24:56,114 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 10:24:56,114 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 10:24:56,208 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:56" (1/1) ... [2020-10-12 10:24:56,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:56" (1/1) ... [2020-10-12 10:24:56,217 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:56" (1/1) ... [2020-10-12 10:24:56,217 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:56" (1/1) ... [2020-10-12 10:24:56,224 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:56" (1/1) ... [2020-10-12 10:24:56,229 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:56" (1/1) ... [2020-10-12 10:24:56,231 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:56" (1/1) ... [2020-10-12 10:24:56,233 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 10:24:56,233 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 10:24:56,234 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 10:24:56,234 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 10:24:56,235 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:56" (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 10:24:56,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 10:24:56,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 10:24:56,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-12 10:24:56,296 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 10:24:56,296 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 10:24:56,296 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-12 10:24:56,296 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 10:24:56,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-12 10:24:56,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-12 10:24:56,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-12 10:24:56,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-12 10:24:56,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 10:24:56,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 10:24:56,539 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 10:24:56,540 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-12 10:24:56,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:24:56 BoogieIcfgContainer [2020-10-12 10:24:56,546 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 10:24:56,548 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 10:24:56,549 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 10:24:56,554 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 10:24:56,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 10:24:55" (1/3) ... [2020-10-12 10:24:56,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ed016e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:24:56, skipping insertion in model container [2020-10-12 10:24:56,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:56" (2/3) ... [2020-10-12 10:24:56,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ed016e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:24:56, skipping insertion in model container [2020-10-12 10:24:56,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:24:56" (3/3) ... [2020-10-12 10:24:56,559 INFO L109 eAbstractionObserver]: Analyzing ICFG partial_mod_count_5.c [2020-10-12 10:24:56,575 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 10:24:56,582 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 10:24:56,600 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 10:24:56,630 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 10:24:56,630 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 10:24:56,630 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 10:24:56,630 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 10:24:56,630 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 10:24:56,630 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 10:24:56,631 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 10:24:56,631 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 10:24:56,652 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-10-12 10:24:56,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-12 10:24:56,659 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:24:56,661 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:24:56,661 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:24:56,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:24:56,668 INFO L82 PathProgramCache]: Analyzing trace with hash 547567586, now seen corresponding path program 1 times [2020-10-12 10:24:56,678 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:24:56,678 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1446645234] [2020-10-12 10:24:56,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:24:56,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:56,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:56,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:57,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:57,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 10:24:57,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:24:57,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 351 [2020-10-12 10:24:57,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:57,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 10:24:57,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 10:24:57,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 10:24:57,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 10:24:57,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:24:57,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:57,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:57,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:57,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:24:57,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:24:57,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 10:24:57,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:57,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:24:57,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:24:57,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 10:24:57,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 10:24:57,521 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 10:24:57,522 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1446645234] [2020-10-12 10:24:57,524 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 10:24:57,524 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 10:24:57,525 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130469671] [2020-10-12 10:24:57,534 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 10:24:57,535 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:24:57,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 10:24:57,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-12 10:24:57,548 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 8 states. [2020-10-12 10:24:57,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:24:57,887 INFO L93 Difference]: Finished difference Result 59 states and 79 transitions. [2020-10-12 10:24:57,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 10:24:57,890 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2020-10-12 10:24:57,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:24:57,900 INFO L225 Difference]: With dead ends: 59 [2020-10-12 10:24:57,900 INFO L226 Difference]: Without dead ends: 32 [2020-10-12 10:24:57,904 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-12 10:24:57,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-10-12 10:24:57,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-10-12 10:24:57,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-12 10:24:57,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2020-10-12 10:24:57,950 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 14 [2020-10-12 10:24:57,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:24:57,951 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions. [2020-10-12 10:24:57,951 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 10:24:57,951 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2020-10-12 10:24:57,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-12 10:24:57,954 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:24:57,954 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 10:24:57,955 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 10:24:57,955 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:24:57,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:24:57,956 INFO L82 PathProgramCache]: Analyzing trace with hash -1588214163, now seen corresponding path program 1 times [2020-10-12 10:24:57,956 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:24:57,956 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1512831149] [2020-10-12 10:24:57,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:24:57,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:57,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:58,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:58,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:58,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:58,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:58,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:58,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-12 10:24:58,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 10:24:58,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 958 [2020-10-12 10:24:58,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:58,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 10:24:58,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 10:24:58,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-12 10:24:58,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:24:59,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:24:59,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:59,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:59,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:59,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:24:59,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:24:59,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 10:24:59,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:59,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:24:59,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:24:59,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 10:24:59,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 10:24:59,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 10:24:59,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:59,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:59,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:59,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:24:59,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:24:59,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 10:24:59,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:59,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:24:59,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:24:59,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:24:59,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 10:24:59,189 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 10:24:59,191 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1512831149] [2020-10-12 10:24:59,192 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:24:59,192 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-12 10:24:59,193 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091406771] [2020-10-12 10:24:59,200 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 10:24:59,201 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:24:59,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 10:24:59,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-12 10:24:59,203 INFO L87 Difference]: Start difference. First operand 32 states and 38 transitions. Second operand 9 states. [2020-10-12 10:24:59,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:24:59,575 INFO L93 Difference]: Finished difference Result 42 states and 49 transitions. [2020-10-12 10:24:59,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 10:24:59,577 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-10-12 10:24:59,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:24:59,578 INFO L225 Difference]: With dead ends: 42 [2020-10-12 10:24:59,578 INFO L226 Difference]: Without dead ends: 40 [2020-10-12 10:24:59,580 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2020-10-12 10:24:59,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-12 10:24:59,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-10-12 10:24:59,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-12 10:24:59,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 47 transitions. [2020-10-12 10:24:59,603 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 47 transitions. Word has length 22 [2020-10-12 10:24:59,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:24:59,605 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 47 transitions. [2020-10-12 10:24:59,605 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 10:24:59,605 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 47 transitions. [2020-10-12 10:24:59,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-12 10:24:59,608 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:24:59,609 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 10:24:59,610 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 10:24:59,610 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:24:59,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:24:59,610 INFO L82 PathProgramCache]: Analyzing trace with hash 2013733517, now seen corresponding path program 2 times [2020-10-12 10:24:59,611 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:24:59,611 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [881894045] [2020-10-12 10:24:59,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:24:59,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:59,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:59,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:59,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:59,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:59,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:59,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:01,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:02,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:25:03,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 10:25:03,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 10:25:03,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3372 [2020-10-12 10:25:03,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:25:03,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 10:25:03,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 10:25:03,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-12 10:25:03,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:25:03,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:25:03,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:25:03,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:03,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:25:03,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:25:03,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:25:03,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 10:25:03,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:25:03,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:25:03,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:25:03,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 10:25:03,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:25:03,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 10:25:03,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:25:03,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:03,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:25:03,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:25:03,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:25:03,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 10:25:03,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:25:03,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:25:03,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:25:03,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:25:03,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:25:03,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 10:25:03,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:25:03,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:03,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:25:03,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:25:03,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:25:03,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 10:25:03,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:25:03,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:25:03,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:25:03,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:25:03,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:25:03,152 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 10:25:03,152 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [881894045] [2020-10-12 10:25:03,153 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:25:03,153 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 10:25:03,154 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587594647] [2020-10-12 10:25:03,154 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 10:25:03,154 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:25:03,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 10:25:03,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-12 10:25:03,155 INFO L87 Difference]: Start difference. First operand 40 states and 47 transitions. Second operand 10 states. [2020-10-12 10:25:03,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:25:03,488 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2020-10-12 10:25:03,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 10:25:03,489 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 30 [2020-10-12 10:25:03,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:25:03,490 INFO L225 Difference]: With dead ends: 50 [2020-10-12 10:25:03,490 INFO L226 Difference]: Without dead ends: 48 [2020-10-12 10:25:03,491 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2020-10-12 10:25:03,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-10-12 10:25:03,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-10-12 10:25:03,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-12 10:25:03,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 56 transitions. [2020-10-12 10:25:03,502 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 56 transitions. Word has length 30 [2020-10-12 10:25:03,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:25:03,502 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 56 transitions. [2020-10-12 10:25:03,502 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 10:25:03,502 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 56 transitions. [2020-10-12 10:25:03,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-12 10:25:03,504 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:25:03,504 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 10:25:03,504 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 10:25:03,505 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:25:03,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:25:03,505 INFO L82 PathProgramCache]: Analyzing trace with hash 774528685, now seen corresponding path program 3 times [2020-10-12 10:25:03,505 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:25:03,506 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [293461115] [2020-10-12 10:25:03,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:25:03,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:25:03,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:03,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:03,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:03,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:03,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:03,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:03,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:06,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:08,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:25:08,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 10:25:08,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 10:25:08,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 10:25:08,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:25:08,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 10:25:08,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 10:25:08,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-12 10:25:08,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:25:08,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:25:08,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:25:08,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:08,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:25:08,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:25:08,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:25:08,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:25:08,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:25:08,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:25:08,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:25:08,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:25:08,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:25:08,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 10:25:08,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:25:08,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:08,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:08,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:25:08,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:25:08,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:25:08,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 10:25:08,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:25:08,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 10:25:08,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 10:25:08,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:25:08,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:25:08,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 10:25:08,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:25:08,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:08,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:08,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:25:08,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:25:08,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:25:08,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 10:25:08,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:25:08,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 10:25:08,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 10:25:08,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:25:08,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:25:08,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-12 10:25:08,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:25:08,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:08,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:25:08,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:25:08,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:25:08,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 10:25:08,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:25:08,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 10:25:08,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 10:25:08,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:25:08,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:25:08,736 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 24 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-12 10:25:08,737 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [293461115] [2020-10-12 10:25:08,737 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:25:08,737 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-12 10:25:08,738 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354008724] [2020-10-12 10:25:08,738 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 10:25:08,739 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:25:08,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 10:25:08,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-10-12 10:25:08,740 INFO L87 Difference]: Start difference. First operand 48 states and 56 transitions. Second operand 11 states. [2020-10-12 10:25:08,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:25:08,991 INFO L93 Difference]: Finished difference Result 98 states and 119 transitions. [2020-10-12 10:25:08,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 10:25:08,992 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 38 [2020-10-12 10:25:08,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:25:08,993 INFO L225 Difference]: With dead ends: 98 [2020-10-12 10:25:08,993 INFO L226 Difference]: Without dead ends: 51 [2020-10-12 10:25:08,995 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2020-10-12 10:25:08,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-10-12 10:25:09,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 50. [2020-10-12 10:25:09,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-10-12 10:25:09,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 58 transitions. [2020-10-12 10:25:09,005 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 58 transitions. Word has length 38 [2020-10-12 10:25:09,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:25:09,005 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 58 transitions. [2020-10-12 10:25:09,005 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 10:25:09,006 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 58 transitions. [2020-10-12 10:25:09,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-12 10:25:09,007 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:25:09,007 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 10:25:09,007 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 10:25:09,008 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:25:09,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:25:09,008 INFO L82 PathProgramCache]: Analyzing trace with hash -1124481880, now seen corresponding path program 1 times [2020-10-12 10:25:09,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:25:09,009 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1469955462] [2020-10-12 10:25:09,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:25:09,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:25:09,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:09,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:09,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:09,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:09,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:09,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:09,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:09,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:09,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:10,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:10,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:10,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:14,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:25:14,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-12 10:25:14,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-12 10:25:14,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-12 10:25:14,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:25:14,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 10:25:14,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 10:25:14,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-12 10:25:14,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 10:25:14,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:25:14,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:25:14,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:14,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:25:14,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:25:14,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:25:14,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:25:14,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:25:14,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:25:14,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:25:14,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:25:14,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:25:14,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 10:25:14,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:25:14,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:14,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:14,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:25:14,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:25:14,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:25:14,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 10:25:14,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:25:14,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 10:25:14,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 10:25:14,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:25:14,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:25:14,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 10:25:14,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:25:14,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:14,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:14,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:25:14,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:25:14,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:25:14,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 10:25:14,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:25:14,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 10:25:14,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 10:25:14,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:25:14,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:25:14,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-12 10:25:14,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:25:14,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:14,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:25:14,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:25:14,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:25:14,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 10:25:14,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:25:14,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 10:25:14,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 10:25:14,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:25:14,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:25:14,226 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 10:25:14,227 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1469955462] [2020-10-12 10:25:14,227 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:25:14,227 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-12 10:25:14,228 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712077416] [2020-10-12 10:25:14,229 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 10:25:14,229 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:25:14,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 10:25:14,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-10-12 10:25:14,230 INFO L87 Difference]: Start difference. First operand 50 states and 58 transitions. Second operand 11 states. [2020-10-12 10:25:14,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:25:14,524 INFO L93 Difference]: Finished difference Result 103 states and 125 transitions. [2020-10-12 10:25:14,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 10:25:14,526 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 41 [2020-10-12 10:25:14,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:25:14,528 INFO L225 Difference]: With dead ends: 103 [2020-10-12 10:25:14,528 INFO L226 Difference]: Without dead ends: 54 [2020-10-12 10:25:14,529 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2020-10-12 10:25:14,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-12 10:25:14,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 53. [2020-10-12 10:25:14,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-10-12 10:25:14,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 61 transitions. [2020-10-12 10:25:14,544 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 61 transitions. Word has length 41 [2020-10-12 10:25:14,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:25:14,545 INFO L479 AbstractCegarLoop]: Abstraction has 53 states and 61 transitions. [2020-10-12 10:25:14,545 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 10:25:14,545 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 61 transitions. [2020-10-12 10:25:14,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-12 10:25:14,548 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:25:14,548 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 10:25:14,549 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 10:25:14,549 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:25:14,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:25:14,549 INFO L82 PathProgramCache]: Analyzing trace with hash -1239000883, now seen corresponding path program 2 times [2020-10-12 10:25:14,550 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:25:14,550 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1257845785] [2020-10-12 10:25:14,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:25:14,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:25:14,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:14,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:14,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:14,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:14,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:15,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:15,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:15,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:19,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:25:19,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-12 10:25:19,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 10:25:19,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-12 10:25:19,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:25:19,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 10:25:19,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 10:25:19,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-12 10:25:19,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:25:19,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:25:19,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:25:19,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:19,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:25:19,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:25:19,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:25:19,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 10:25:19,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:25:19,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:25:19,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:25:19,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:25:19,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:25:19,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 10:25:19,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:25:19,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:19,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:19,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:25:19,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:25:19,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:25:19,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 10:25:19,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:25:19,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 10:25:19,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 10:25:19,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:25:19,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 10:25:19,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-12 10:25:19,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:25:19,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:19,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:19,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:25:19,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:25:19,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:25:19,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 10:25:19,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:25:19,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 10:25:19,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 10:25:19,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:25:19,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:25:19,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-12 10:25:19,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:25:19,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:25:19,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:25:19,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:25:19,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:25:19,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 10:25:19,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:25:19,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 10:25:19,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 10:25:19,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:25:19,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:25:19,999 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 27 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-12 10:25:20,000 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1257845785] [2020-10-12 10:25:20,001 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:25:20,001 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-12 10:25:20,002 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127099291] [2020-10-12 10:25:20,003 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 10:25:20,003 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:25:20,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 10:25:20,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-10-12 10:25:20,004 INFO L87 Difference]: Start difference. First operand 53 states and 61 transitions. Second operand 12 states. [2020-10-12 10:25:20,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:25:20,592 INFO L93 Difference]: Finished difference Result 132 states and 167 transitions. [2020-10-12 10:25:20,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 10:25:20,593 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 44 [2020-10-12 10:25:20,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:25:20,595 INFO L225 Difference]: With dead ends: 132 [2020-10-12 10:25:20,597 INFO L226 Difference]: Without dead ends: 89 [2020-10-12 10:25:20,599 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2020-10-12 10:25:20,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-10-12 10:25:20,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 55. [2020-10-12 10:25:20,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-12 10:25:20,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 63 transitions. [2020-10-12 10:25:20,631 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 63 transitions. Word has length 44 [2020-10-12 10:25:20,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:25:20,632 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 63 transitions. [2020-10-12 10:25:20,632 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 10:25:20,632 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 63 transitions. [2020-10-12 10:25:20,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-12 10:25:20,638 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:25:20,639 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 10:25:20,639 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 10:25:20,639 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:25:20,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:25:20,643 INFO L82 PathProgramCache]: Analyzing trace with hash -426602934, now seen corresponding path program 1 times [2020-10-12 10:25:20,644 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:25:20,644 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [861645357] [2020-10-12 10:25:20,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:25:20,661 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-12 10:25:20,661 WARN L168 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-10-12 10:25:20,662 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-12 10:25:20,670 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 10:25:20,702 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-12 10:25:20,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 10:25:20 BoogieIcfgContainer [2020-10-12 10:25:20,703 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 10:25:20,708 INFO L168 Benchmark]: Toolchain (without parser) took 24851.54 ms. Allocated memory was 137.9 MB in the beginning and 477.1 MB in the end (delta: 339.2 MB). Free memory was 100.8 MB in the beginning and 274.2 MB in the end (delta: -173.4 MB). Peak memory consumption was 165.8 MB. Max. memory is 7.1 GB. [2020-10-12 10:25:20,709 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.0 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-10-12 10:25:20,717 INFO L168 Benchmark]: CACSL2BoogieTranslator took 258.37 ms. Allocated memory is still 137.9 MB. Free memory was 100.8 MB in the beginning and 90.6 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2020-10-12 10:25:20,719 INFO L168 Benchmark]: Boogie Preprocessor took 119.58 ms. Allocated memory was 137.9 MB in the beginning and 199.8 MB in the end (delta: 61.9 MB). Free memory was 90.6 MB in the beginning and 177.4 MB in the end (delta: -86.8 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. [2020-10-12 10:25:20,720 INFO L168 Benchmark]: RCFGBuilder took 312.92 ms. Allocated memory is still 199.8 MB. Free memory was 177.4 MB in the beginning and 161.1 MB in the end (delta: 16.3 MB). Peak memory consumption was 16.3 MB. Max. memory is 7.1 GB. [2020-10-12 10:25:20,721 INFO L168 Benchmark]: TraceAbstraction took 24154.92 ms. Allocated memory was 199.8 MB in the beginning and 477.1 MB in the end (delta: 277.3 MB). Free memory was 161.1 MB in the beginning and 274.2 MB in the end (delta: -113.1 MB). Peak memory consumption was 164.2 MB. Max. memory is 7.1 GB. [2020-10-12 10:25:20,739 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.0 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 258.37 ms. Allocated memory is still 137.9 MB. Free memory was 100.8 MB in the beginning and 90.6 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 119.58 ms. Allocated memory was 137.9 MB in the beginning and 199.8 MB in the end (delta: 61.9 MB). Free memory was 90.6 MB in the beginning and 177.4 MB in the end (delta: -86.8 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 312.92 ms. Allocated memory is still 199.8 MB. Free memory was 177.4 MB in the beginning and 161.1 MB in the end (delta: 16.3 MB). Peak memory consumption was 16.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 24154.92 ms. Allocated memory was 199.8 MB in the beginning and 477.1 MB in the end (delta: 277.3 MB). Free memory was 161.1 MB in the beginning and 274.2 MB in the end (delta: -113.1 MB). Peak memory consumption was 164.2 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=5; [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