/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-patterns/array6_pattern.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 10:24:13,665 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 10:24:13,668 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 10:24:13,694 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 10:24:13,694 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 10:24:13,695 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 10:24:13,697 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 10:24:13,699 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 10:24:13,700 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 10:24:13,701 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 10:24:13,702 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 10:24:13,704 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 10:24:13,704 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 10:24:13,705 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 10:24:13,706 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 10:24:13,708 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 10:24:13,708 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 10:24:13,709 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 10:24:13,711 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 10:24:13,713 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 10:24:13,715 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 10:24:13,716 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 10:24:13,717 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 10:24:13,718 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 10:24:13,720 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 10:24:13,721 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 10:24:13,721 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 10:24:13,722 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 10:24:13,722 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 10:24:13,723 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 10:24:13,723 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 10:24:13,724 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 10:24:13,725 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 10:24:13,726 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 10:24:13,727 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 10:24:13,727 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 10:24:13,728 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 10:24:13,728 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 10:24:13,728 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 10:24:13,729 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 10:24:13,730 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 10:24:13,731 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 10:24:13,755 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 10:24:13,755 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 10:24:13,756 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 10:24:13,757 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 10:24:13,757 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 10:24:13,757 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 10:24:13,757 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 10:24:13,757 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 10:24:13,758 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 10:24:13,758 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 10:24:13,758 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 10:24:13,758 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 10:24:13,759 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 10:24:13,759 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 10:24:13,759 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 10:24:13,759 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 10:24:13,759 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 10:24:13,760 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 10:24:13,760 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 10:24:13,760 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 10:24:13,760 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 10:24:13,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 10:24:13,761 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 10:24:13,761 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 10:24:13,761 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 10:24:13,761 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 10:24:13,761 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 10:24:13,762 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 10:24:13,762 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 10:24:13,764 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 10:24:14,160 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 10:24:14,172 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 10:24:14,176 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 10:24:14,178 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 10:24:14,178 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 10:24:14,179 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-patterns/array6_pattern.c [2020-10-12 10:24:14,274 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/76f6b4d35/7a4cacca0c5943b4a7c4b379442442a1/FLAG0334feae1 [2020-10-12 10:24:14,836 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 10:24:14,837 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-patterns/array6_pattern.c [2020-10-12 10:24:14,851 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/76f6b4d35/7a4cacca0c5943b4a7c4b379442442a1/FLAG0334feae1 [2020-10-12 10:24:15,185 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/76f6b4d35/7a4cacca0c5943b4a7c4b379442442a1 [2020-10-12 10:24:15,195 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 10:24:15,197 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 10:24:15,198 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 10:24:15,198 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 10:24:15,202 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 10:24:15,203 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 10:24:15" (1/1) ... [2020-10-12 10:24:15,206 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@240fc400 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:15, skipping insertion in model container [2020-10-12 10:24:15,207 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 10:24:15" (1/1) ... [2020-10-12 10:24:15,215 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 10:24:15,240 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 10:24:15,434 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 10:24:15,438 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 10:24:15,468 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 10:24:15,490 INFO L208 MainTranslator]: Completed translation [2020-10-12 10:24:15,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:15 WrapperNode [2020-10-12 10:24:15,491 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 10:24:15,492 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 10:24:15,492 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 10:24:15,492 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 10:24:15,610 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:15" (1/1) ... [2020-10-12 10:24:15,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:15" (1/1) ... [2020-10-12 10:24:15,620 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:15" (1/1) ... [2020-10-12 10:24:15,621 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:15" (1/1) ... [2020-10-12 10:24:15,630 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:15" (1/1) ... [2020-10-12 10:24:15,636 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:15" (1/1) ... [2020-10-12 10:24:15,638 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:15" (1/1) ... [2020-10-12 10:24:15,641 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 10:24:15,641 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 10:24:15,642 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 10:24:15,642 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 10:24:15,643 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:15" (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 10:24:15,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 10:24:15,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 10:24:15,710 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-12 10:24:15,710 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-12 10:24:15,710 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 10:24:15,711 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 10:24:15,711 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 10:24:15,711 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-12 10:24:15,711 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-12 10:24:15,711 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 10:24:15,711 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_short [2020-10-12 10:24:15,712 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 10:24:15,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-12 10:24:15,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-12 10:24:15,712 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-12 10:24:15,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-12 10:24:15,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 10:24:15,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 10:24:16,089 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 10:24:16,090 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-12 10:24:16,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:24:16 BoogieIcfgContainer [2020-10-12 10:24:16,094 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 10:24:16,096 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 10:24:16,096 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 10:24:16,099 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 10:24:16,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 10:24:15" (1/3) ... [2020-10-12 10:24:16,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8cca9fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:24:16, skipping insertion in model container [2020-10-12 10:24:16,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:24:15" (2/3) ... [2020-10-12 10:24:16,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8cca9fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:24:16, skipping insertion in model container [2020-10-12 10:24:16,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:24:16" (3/3) ... [2020-10-12 10:24:16,104 INFO L109 eAbstractionObserver]: Analyzing ICFG array6_pattern.c [2020-10-12 10:24:16,116 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 10:24:16,124 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 10:24:16,138 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 10:24:16,159 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 10:24:16,160 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 10:24:16,160 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 10:24:16,160 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 10:24:16,160 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 10:24:16,161 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 10:24:16,161 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 10:24:16,161 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 10:24:16,180 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-10-12 10:24:16,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-12 10:24:16,186 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:24:16,187 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:24:16,188 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:24:16,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:24:16,195 INFO L82 PathProgramCache]: Analyzing trace with hash 1226662526, now seen corresponding path program 1 times [2020-10-12 10:24:16,202 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:24:16,203 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1107814769] [2020-10-12 10:24:16,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:24:16,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:16,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:16,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:16,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:16,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:16,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-12 10:24:16,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 10:24:16,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 425 [2020-10-12 10:24:16,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:16,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 10:24:16,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-12 10:24:16,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 10:24:16,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-12 10:24:16,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:24:16,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:16,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:16,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:16,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:24:16,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:24:16,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 10:24:16,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:16,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:24:16,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:24:16,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:24:16,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:24:16,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 10:24:16,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:16,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:16,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:16,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:16,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:24:16,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:24:16,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 10:24:16,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:16,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:24:16,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 10:24:16,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:24:16,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:24:16,952 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 10:24:16,953 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1107814769] [2020-10-12 10:24:16,955 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 10:24:16,956 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 10:24:16,957 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837543776] [2020-10-12 10:24:16,962 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 10:24:16,963 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:24:16,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 10:24:16,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-12 10:24:16,982 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 6 states. [2020-10-12 10:24:17,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:24:17,215 INFO L93 Difference]: Finished difference Result 68 states and 92 transitions. [2020-10-12 10:24:17,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 10:24:17,217 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2020-10-12 10:24:17,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:24:17,228 INFO L225 Difference]: With dead ends: 68 [2020-10-12 10:24:17,229 INFO L226 Difference]: Without dead ends: 27 [2020-10-12 10:24:17,233 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-12 10:24:17,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-10-12 10:24:17,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-10-12 10:24:17,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-12 10:24:17,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2020-10-12 10:24:17,283 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 20 [2020-10-12 10:24:17,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:24:17,284 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2020-10-12 10:24:17,284 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 10:24:17,284 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2020-10-12 10:24:17,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-12 10:24:17,287 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:24:17,287 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:24:17,287 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 10:24:17,288 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:24:17,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:24:17,288 INFO L82 PathProgramCache]: Analyzing trace with hash 328288985, now seen corresponding path program 1 times [2020-10-12 10:24:17,289 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:24:17,289 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1457149178] [2020-10-12 10:24:17,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:24:17,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:17,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:17,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:17,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:18,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:19,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:19,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-12 10:24:19,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 10:24:19,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1982 [2020-10-12 10:24:19,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:19,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 10:24:19,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-12 10:24:19,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 10:24:19,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:24:19,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:24:19,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:19,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:19,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:19,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:24:19,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:24:19,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 10:24:19,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:19,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:24:19,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:24:19,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:24:19,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:24:19,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 10:24:19,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:19,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:19,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:19,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:24:19,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:24:19,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:24:19,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:19,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:24:19,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:24:19,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:24:19,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:24:19,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-12 10:24:19,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:19,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:19,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:19,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:24:19,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:24:19,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 10:24:19,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:19,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 10:24:19,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:24:19,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 10:24:19,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:24:19,473 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-12 10:24:19,474 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1457149178] [2020-10-12 10:24:19,474 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:24:19,474 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 10:24:19,475 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827994882] [2020-10-12 10:24:19,478 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 10:24:19,479 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:24:19,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 10:24:19,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-12 10:24:19,491 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand 8 states. [2020-10-12 10:24:19,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:24:19,942 INFO L93 Difference]: Finished difference Result 41 states and 44 transitions. [2020-10-12 10:24:19,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 10:24:19,942 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 29 [2020-10-12 10:24:19,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:24:19,946 INFO L225 Difference]: With dead ends: 41 [2020-10-12 10:24:19,946 INFO L226 Difference]: Without dead ends: 36 [2020-10-12 10:24:19,948 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2020-10-12 10:24:19,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-12 10:24:19,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 35. [2020-10-12 10:24:19,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-12 10:24:19,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2020-10-12 10:24:19,960 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 29 [2020-10-12 10:24:19,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:24:19,960 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2020-10-12 10:24:19,961 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 10:24:19,961 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2020-10-12 10:24:19,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-12 10:24:19,962 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:24:19,962 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:24:19,963 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 10:24:19,963 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:24:19,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:24:19,963 INFO L82 PathProgramCache]: Analyzing trace with hash -1354266537, now seen corresponding path program 2 times [2020-10-12 10:24:19,964 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:24:19,964 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1194257057] [2020-10-12 10:24:19,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:24:19,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:19,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:20,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:20,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:20,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:20,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:23,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:23,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-12 10:24:23,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 10:24:23,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3169 [2020-10-12 10:24:23,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:23,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 10:24:23,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-12 10:24:23,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 10:24:23,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:24:23,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:24:23,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:23,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:23,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:23,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:24:23,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:24:23,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 10:24:23,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:23,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:24:23,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:24:23,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:24:23,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:24:23,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 10:24:23,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:23,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:23,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:23,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:24:23,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:24:23,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:24:23,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:23,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:24:23,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:24:23,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:24:23,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:24:23,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-12 10:24:23,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:23,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:23,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:23,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:24:23,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:24:23,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 10:24:23,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:23,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 10:24:23,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:24:23,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 10:24:23,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:24:23,280 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-12 10:24:23,280 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1194257057] [2020-10-12 10:24:23,281 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:24:23,281 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-12 10:24:23,281 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240812007] [2020-10-12 10:24:23,282 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 10:24:23,282 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:24:23,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 10:24:23,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-12 10:24:23,283 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand 9 states. [2020-10-12 10:24:23,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:24:23,611 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2020-10-12 10:24:23,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 10:24:23,612 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 31 [2020-10-12 10:24:23,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:24:23,613 INFO L225 Difference]: With dead ends: 42 [2020-10-12 10:24:23,613 INFO L226 Difference]: Without dead ends: 37 [2020-10-12 10:24:23,614 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2020-10-12 10:24:23,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-12 10:24:23,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-10-12 10:24:23,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-12 10:24:23,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2020-10-12 10:24:23,624 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 31 [2020-10-12 10:24:23,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:24:23,624 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2020-10-12 10:24:23,624 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 10:24:23,625 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2020-10-12 10:24:23,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-12 10:24:23,626 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:24:23,626 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:24:23,627 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 10:24:23,627 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:24:23,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:24:23,628 INFO L82 PathProgramCache]: Analyzing trace with hash 912547413, now seen corresponding path program 3 times [2020-10-12 10:24:23,628 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:24:23,628 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2068967273] [2020-10-12 10:24:23,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:24:23,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:23,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:23,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:23,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:23,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:23,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:28,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:28,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-12 10:24:28,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 10:24:28,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4374 [2020-10-12 10:24:28,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:28,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 10:24:28,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-12 10:24:28,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 10:24:28,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:24:28,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:24:28,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:28,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:28,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:28,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:24:28,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:24:28,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:24:28,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:28,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:24:28,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:24:28,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:24:28,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:24:28,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 10:24:28,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:28,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:28,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:28,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:24:28,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:24:28,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:24:28,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:28,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:24:28,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:24:28,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:24:28,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:24:28,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-12 10:24:28,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:24:28,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:28,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:24:28,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:24:28,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:24:28,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:24:28,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 10:24:28,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:24:28,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 10:24:28,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 10:24:28,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:24:28,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:24:28,224 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-12 10:24:28,224 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2068967273] [2020-10-12 10:24:28,225 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 10:24:28,226 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 10:24:28,226 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7974004] [2020-10-12 10:24:28,226 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 10:24:28,227 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:24:28,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 10:24:28,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-12 10:24:28,228 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand 10 states. [2020-10-12 10:24:28,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:24:28,627 INFO L93 Difference]: Finished difference Result 66 states and 71 transitions. [2020-10-12 10:24:28,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 10:24:28,628 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 33 [2020-10-12 10:24:28,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:24:28,630 INFO L225 Difference]: With dead ends: 66 [2020-10-12 10:24:28,630 INFO L226 Difference]: Without dead ends: 39 [2020-10-12 10:24:28,631 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2020-10-12 10:24:28,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-10-12 10:24:28,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 38. [2020-10-12 10:24:28,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-12 10:24:28,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2020-10-12 10:24:28,651 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 33 [2020-10-12 10:24:28,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:24:28,651 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2020-10-12 10:24:28,652 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 10:24:28,652 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2020-10-12 10:24:28,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-12 10:24:28,655 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:24:28,659 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:24:28,659 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 10:24:28,660 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:24:28,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:24:28,660 INFO L82 PathProgramCache]: Analyzing trace with hash 1177833491, now seen corresponding path program 1 times [2020-10-12 10:24:28,660 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:24:28,661 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1841852221] [2020-10-12 10:24:28,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:24:28,676 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-12 10:24:28,676 WARN L168 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-10-12 10:24:28,677 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-12 10:24:28,683 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 10:24:28,707 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-12 10:24:28,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 10:24:28 BoogieIcfgContainer [2020-10-12 10:24:28,708 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 10:24:28,711 INFO L168 Benchmark]: Toolchain (without parser) took 13513.38 ms. Allocated memory was 146.3 MB in the beginning and 369.1 MB in the end (delta: 222.8 MB). Free memory was 102.2 MB in the beginning and 210.2 MB in the end (delta: -108.1 MB). Peak memory consumption was 114.8 MB. Max. memory is 7.1 GB. [2020-10-12 10:24:28,715 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 146.3 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-12 10:24:28,718 INFO L168 Benchmark]: CACSL2BoogieTranslator took 292.86 ms. Allocated memory is still 146.3 MB. Free memory was 102.0 MB in the beginning and 91.2 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. [2020-10-12 10:24:28,720 INFO L168 Benchmark]: Boogie Preprocessor took 149.42 ms. Allocated memory was 146.3 MB in the beginning and 202.4 MB in the end (delta: 56.1 MB). Free memory was 91.2 MB in the beginning and 179.5 MB in the end (delta: -88.3 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2020-10-12 10:24:28,725 INFO L168 Benchmark]: RCFGBuilder took 452.82 ms. Allocated memory is still 202.4 MB. Free memory was 179.5 MB in the beginning and 161.9 MB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 7.1 GB. [2020-10-12 10:24:28,727 INFO L168 Benchmark]: TraceAbstraction took 12612.73 ms. Allocated memory was 202.4 MB in the beginning and 369.1 MB in the end (delta: 166.7 MB). Free memory was 161.9 MB in the beginning and 210.2 MB in the end (delta: -48.3 MB). Peak memory consumption was 118.4 MB. Max. memory is 7.1 GB. [2020-10-12 10:24:28,738 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 146.3 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 292.86 ms. Allocated memory is still 146.3 MB. Free memory was 102.0 MB in the beginning and 91.2 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 149.42 ms. Allocated memory was 146.3 MB in the beginning and 202.4 MB in the end (delta: 56.1 MB). Free memory was 91.2 MB in the beginning and 179.5 MB in the end (delta: -88.3 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 452.82 ms. Allocated memory is still 202.4 MB. Free memory was 179.5 MB in the beginning and 161.9 MB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12612.73 ms. Allocated memory was 202.4 MB in the beginning and 369.1 MB in the end (delta: 166.7 MB). Free memory was 161.9 MB in the beginning and 210.2 MB in the end (delta: -48.3 MB). Peak memory consumption was 118.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 31]: 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: [L35] signed long long ARR_SIZE ; [L39] ARR_SIZE = (signed long long)__VERIFIER_nondet_short() [L40] CALL assume_abort_if_not(ARR_SIZE > 0) [L29] COND FALSE !(!cond) [L40] RET assume_abort_if_not(ARR_SIZE > 0) [L42] int array1[ARR_SIZE] ; [L43] int array2[ARR_SIZE] ; [L44] int count = 0, num = -1 ; [L45] signed long long sum = 0 ; [L46] int temp ; [L47] short index ; [L49] count=0 [L49] COND TRUE count 0 && index < ARR_SIZE-1) [L29] COND FALSE !(!cond) [L59] RET assume_abort_if_not(index > 0 && index < ARR_SIZE-1) [L61] EXPR array1[index-1] [L61] EXPR array1[index+1] [L61] array1[index] = array1[index-1] + array1[index+1] [L62] EXPR array2[index-1] [L62] EXPR array2[index+1] [L62] array2[index] = array2[index-1] + array2[index+1] [L64] temp = __VERIFIER_nondet_int() [L65] COND TRUE temp == 0 [L68] count=0 [L68] COND TRUE count