/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 09:17:15,730 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 09:17:15,732 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 09:17:15,758 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 09:17:15,758 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 09:17:15,760 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 09:17:15,761 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 09:17:15,763 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 09:17:15,765 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 09:17:15,766 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 09:17:15,767 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 09:17:15,768 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 09:17:15,768 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 09:17:15,769 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 09:17:15,770 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 09:17:15,771 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 09:17:15,772 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 09:17:15,773 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 09:17:15,775 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 09:17:15,777 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 09:17:15,779 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 09:17:15,780 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 09:17:15,781 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 09:17:15,782 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 09:17:15,784 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 09:17:15,785 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 09:17:15,785 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 09:17:15,786 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 09:17:15,786 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 09:17:15,787 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 09:17:15,787 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 09:17:15,788 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 09:17:15,789 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 09:17:15,790 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 09:17:15,791 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 09:17:15,791 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 09:17:15,792 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 09:17:15,792 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 09:17:15,792 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 09:17:15,793 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 09:17:15,794 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 09:17:15,794 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 [2020-10-14 09:17:15,818 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 09:17:15,819 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 09:17:15,820 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 09:17:15,820 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 09:17:15,821 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 09:17:15,821 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 09:17:15,821 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 09:17:15,821 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 09:17:15,821 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 09:17:15,822 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 09:17:15,822 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 09:17:15,822 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 09:17:15,822 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 09:17:15,822 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 09:17:15,823 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 09:17:15,823 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 09:17:15,823 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 09:17:15,823 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 09:17:15,824 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 09:17:15,824 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 09:17:15,824 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 09:17:15,824 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 09:17:15,824 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 09:17:15,825 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 09:17:15,825 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 09:17:15,825 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 09:17:15,825 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 09:17:15,826 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 09:17:15,826 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 09:17:15,826 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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 09:17:16,159 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 09:17:16,180 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 09:17:16,185 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 09:17:16,188 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 09:17:16,188 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 09:17:16,189 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2020-10-14 09:17:16,261 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/23b6219ff/15f880ef3b8542118ae024f9d6a1de29/FLAGf51ca9494 [2020-10-14 09:17:17,301 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 09:17:17,302 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2020-10-14 09:17:17,407 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/23b6219ff/15f880ef3b8542118ae024f9d6a1de29/FLAGf51ca9494 [2020-10-14 09:17:17,573 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/23b6219ff/15f880ef3b8542118ae024f9d6a1de29 [2020-10-14 09:17:17,584 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 09:17:17,586 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 09:17:17,591 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 09:17:17,591 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 09:17:17,595 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 09:17:17,596 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:17:17" (1/1) ... [2020-10-14 09:17:17,600 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2876d654 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:17:17, skipping insertion in model container [2020-10-14 09:17:17,601 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:17:17" (1/1) ... [2020-10-14 09:17:17,610 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 09:17:18,076 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 09:17:21,334 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 09:17:21,368 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 09:17:23,139 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 09:17:23,187 INFO L208 MainTranslator]: Completed translation [2020-10-14 09:17:23,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:17:23 WrapperNode [2020-10-14 09:17:23,187 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 09:17:23,188 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 09:17:23,188 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 09:17:23,188 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 09:17:23,203 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:17:23" (1/1) ... [2020-10-14 09:17:23,205 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:17:23" (1/1) ... [2020-10-14 09:17:23,334 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:17:23" (1/1) ... [2020-10-14 09:17:23,334 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:17:23" (1/1) ... [2020-10-14 09:17:23,547 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:17:23" (1/1) ... [2020-10-14 09:17:23,696 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:17:23" (1/1) ... [2020-10-14 09:17:23,743 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:17:23" (1/1) ... [2020-10-14 09:17:23,814 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 09:17:23,815 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 09:17:23,815 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 09:17:23,815 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 09:17:23,816 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:17:23" (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 [2020-10-14 09:17:23,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 09:17:23,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 09:17:23,878 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 09:17:23,879 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 09:17:23,879 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 09:17:23,879 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-14 09:17:23,879 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-14 09:17:23,879 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-14 09:17:23,880 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 09:17:23,880 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 09:17:23,880 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-14 09:17:23,880 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-14 09:17:23,880 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-14 09:17:23,881 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-14 09:17:23,881 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-14 09:17:23,881 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-14 09:17:23,881 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-14 09:17:23,881 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-14 09:17:23,882 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-14 09:17:23,882 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 09:17:23,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 09:17:23,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 09:17:36,968 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 09:17:36,969 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-14 09:17:36,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 09:17:36 BoogieIcfgContainer [2020-10-14 09:17:36,998 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 09:17:37,002 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 09:17:37,002 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 09:17:37,005 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 09:17:37,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 09:17:17" (1/3) ... [2020-10-14 09:17:37,007 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@483f8323 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 09:17:37, skipping insertion in model container [2020-10-14 09:17:37,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:17:23" (2/3) ... [2020-10-14 09:17:37,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@483f8323 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 09:17:37, skipping insertion in model container [2020-10-14 09:17:37,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 09:17:36" (3/3) ... [2020-10-14 09:17:37,011 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2020-10-14 09:17:37,022 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 09:17:37,034 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 19 error locations. [2020-10-14 09:17:37,048 INFO L251 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2020-10-14 09:17:37,094 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 09:17:37,095 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 09:17:37,095 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 09:17:37,095 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 09:17:37,095 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 09:17:37,095 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 09:17:37,095 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 09:17:37,096 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 09:17:37,200 INFO L276 IsEmpty]: Start isEmpty. Operand 6351 states. [2020-10-14 09:17:37,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-14 09:17:37,249 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 09:17:37,251 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 09:17:37,251 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 09:17:37,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 09:17:37,258 INFO L82 PathProgramCache]: Analyzing trace with hash 840809464, now seen corresponding path program 1 times [2020-10-14 09:17:37,267 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 09:17:37,268 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1364746749] [2020-10-14 09:17:37,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 09:17:38,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:17:38,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:17:38,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:17:43,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:17:43,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 09:17:43,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 09:17:43,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5289 [2020-10-14 09:17:43,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:17:43,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:17:43,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 09:17:43,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 09:17:43,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-14 09:17:43,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 09:17:55,921 WARN L193 SmtUtils]: Spent 11.98 s on a formula simplification that was a NOOP. DAG size: 1777 [2020-10-14 09:17:55,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 09:17:56,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:17:56,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:17:56,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:17:56,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 09:17:56,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 09:17:56,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-10-14 09:17:56,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:17:56,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:17:56,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 09:17:56,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 09:17:56,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 09:17:56,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 09:17:56,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 09:17:56,464 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1364746749] [2020-10-14 09:17:56,466 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 09:17:56,466 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 09:17:56,467 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985325983] [2020-10-14 09:17:56,472 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 09:17:56,473 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 09:17:56,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 09:17:56,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 09:17:56,489 INFO L87 Difference]: Start difference. First operand 6351 states. Second operand 6 states. [2020-10-14 09:18:08,655 WARN L193 SmtUtils]: Spent 11.86 s on a formula simplification that was a NOOP. DAG size: 1786 [2020-10-14 09:20:05,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 09:20:05,737 INFO L93 Difference]: Finished difference Result 9436 states and 16436 transitions. [2020-10-14 09:20:05,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 09:20:05,740 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 82 [2020-10-14 09:20:05,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 09:20:05,807 INFO L225 Difference]: With dead ends: 9436 [2020-10-14 09:20:05,808 INFO L226 Difference]: Without dead ends: 6007 [2020-10-14 09:20:05,826 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 24.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-14 09:20:05,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6007 states. [2020-10-14 09:20:06,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6007 to 5974. [2020-10-14 09:20:06,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5974 states. [2020-10-14 09:20:06,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5974 states to 5974 states and 7706 transitions. [2020-10-14 09:20:06,157 INFO L78 Accepts]: Start accepts. Automaton has 5974 states and 7706 transitions. Word has length 82 [2020-10-14 09:20:06,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 09:20:06,159 INFO L479 AbstractCegarLoop]: Abstraction has 5974 states and 7706 transitions. [2020-10-14 09:20:06,159 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 09:20:06,159 INFO L276 IsEmpty]: Start isEmpty. Operand 5974 states and 7706 transitions. [2020-10-14 09:20:06,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-14 09:20:06,180 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 09:20:06,180 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 09:20:06,181 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 09:20:06,181 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 09:20:06,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 09:20:06,182 INFO L82 PathProgramCache]: Analyzing trace with hash 842610855, now seen corresponding path program 1 times [2020-10-14 09:20:06,183 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 09:20:06,183 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1525096763] [2020-10-14 09:20:06,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 09:20:06,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:20:06,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:20:06,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:20:07,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:20:10,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:20:11,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:20:11,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 09:20:11,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 09:20:11,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5085 [2020-10-14 09:20:11,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:20:11,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:20:11,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 09:20:11,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 09:20:11,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-14 09:20:11,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 09:20:23,994 WARN L193 SmtUtils]: Spent 12.17 s on a formula simplification that was a NOOP. DAG size: 1777 [2020-10-14 09:20:23,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 09:20:24,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:20:24,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:20:24,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:20:24,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 09:20:24,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 09:20:24,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-10-14 09:20:24,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:20:24,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:20:24,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 09:20:24,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 09:20:24,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 09:20:24,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 09:20:24,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 09:20:24,504 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1525096763] [2020-10-14 09:20:24,504 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 09:20:24,504 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 09:20:24,505 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94920919] [2020-10-14 09:20:24,507 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 09:20:24,507 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 09:20:24,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 09:20:24,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 09:20:24,508 INFO L87 Difference]: Start difference. First operand 5974 states and 7706 transitions. Second operand 6 states. [2020-10-14 09:20:36,518 WARN L193 SmtUtils]: Spent 11.70 s on a formula simplification that was a NOOP. DAG size: 1786