/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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/pals_lcr-var-start-time.5.ufo.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 02:38:51,888 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 02:38:51,891 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 02:38:51,934 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 02:38:51,935 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 02:38:51,943 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 02:38:51,945 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 02:38:51,948 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 02:38:51,951 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 02:38:51,954 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 02:38:51,955 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 02:38:51,956 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 02:38:51,956 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 02:38:51,959 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 02:38:51,961 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 02:38:51,962 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 02:38:51,964 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 02:38:51,964 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 02:38:51,966 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 02:38:51,973 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 02:38:51,975 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 02:38:51,976 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 02:38:51,977 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 02:38:51,977 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 02:38:51,991 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 02:38:51,991 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 02:38:51,991 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 02:38:51,992 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 02:38:51,992 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 02:38:51,998 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 02:38:51,998 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 02:38:51,999 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 02:38:52,000 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 02:38:52,000 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 02:38:52,001 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 02:38:52,001 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 02:38:52,004 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 02:38:52,004 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 02:38:52,005 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 02:38:52,005 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 02:38:52,006 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 02:38:52,007 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 [2020-10-15 02:38:52,027 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 02:38:52,027 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 02:38:52,028 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 02:38:52,029 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 02:38:52,029 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 02:38:52,029 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 02:38:52,029 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 02:38:52,029 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 02:38:52,030 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 02:38:52,030 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 02:38:52,030 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 02:38:52,030 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 02:38:52,030 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 02:38:52,031 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 02:38:52,031 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 02:38:52,031 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 02:38:52,031 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 02:38:52,031 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 02:38:52,031 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 02:38:52,032 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 02:38:52,032 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 02:38:52,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 02:38:52,032 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 02:38:52,032 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 02:38:52,033 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 02:38:52,033 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 02:38:52,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 02:38:52,033 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 02:38:52,033 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 02:38:52,034 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 02:38:52,333 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 02:38:52,350 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 02:38:52,358 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 02:38:52,360 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 02:38:52,361 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 02:38:52,361 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.5.ufo.BOUNDED-10.pals.c [2020-10-15 02:38:52,429 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fdef12940/5ac78b92ab9b4a5fa619f0403818d35c/FLAG9d7b22dce [2020-10-15 02:38:52,851 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 02:38:52,851 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.5.ufo.BOUNDED-10.pals.c [2020-10-15 02:38:52,864 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fdef12940/5ac78b92ab9b4a5fa619f0403818d35c/FLAG9d7b22dce [2020-10-15 02:38:53,194 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fdef12940/5ac78b92ab9b4a5fa619f0403818d35c [2020-10-15 02:38:53,202 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 02:38:53,203 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 02:38:53,204 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 02:38:53,204 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 02:38:53,208 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 02:38:53,209 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:38:53" (1/1) ... [2020-10-15 02:38:53,212 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cfd413 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:38:53, skipping insertion in model container [2020-10-15 02:38:53,212 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:38:53" (1/1) ... [2020-10-15 02:38:53,221 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 02:38:53,279 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 02:38:53,625 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:38:53,634 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 02:38:53,823 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:38:53,850 INFO L208 MainTranslator]: Completed translation [2020-10-15 02:38:53,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:38:53 WrapperNode [2020-10-15 02:38:53,851 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 02:38:53,852 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 02:38:53,852 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 02:38:53,852 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 02:38:53,866 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:38:53" (1/1) ... [2020-10-15 02:38:53,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:38:53" (1/1) ... [2020-10-15 02:38:53,881 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:38:53" (1/1) ... [2020-10-15 02:38:53,882 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:38:53" (1/1) ... [2020-10-15 02:38:53,898 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:38:53" (1/1) ... [2020-10-15 02:38:53,911 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:38:53" (1/1) ... [2020-10-15 02:38:53,914 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:38:53" (1/1) ... [2020-10-15 02:38:53,918 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 02:38:53,919 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 02:38:53,919 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 02:38:53,919 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 02:38:53,920 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:38:53" (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 [2020-10-15 02:38:53,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 02:38:53,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 02:38:53,988 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 02:38:53,989 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-15 02:38:53,989 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-15 02:38:53,989 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-15 02:38:53,989 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-15 02:38:53,990 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-15 02:38:53,990 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-15 02:38:53,990 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-15 02:38:53,990 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 02:38:53,990 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-15 02:38:53,991 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 02:38:53,991 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 02:38:53,991 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 02:38:53,992 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-15 02:38:53,992 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 02:38:53,992 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 02:38:53,992 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-15 02:38:53,992 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-15 02:38:53,993 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-15 02:38:53,993 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-15 02:38:53,993 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-15 02:38:53,993 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-15 02:38:53,994 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-15 02:38:53,994 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-15 02:38:53,994 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-15 02:38:53,994 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 02:38:53,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 02:38:53,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 02:38:54,694 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 02:38:54,695 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-15 02:38:54,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:38:54 BoogieIcfgContainer [2020-10-15 02:38:54,700 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 02:38:54,701 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 02:38:54,702 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 02:38:54,705 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 02:38:54,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:38:53" (1/3) ... [2020-10-15 02:38:54,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@696e88cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:38:54, skipping insertion in model container [2020-10-15 02:38:54,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:38:53" (2/3) ... [2020-10-15 02:38:54,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@696e88cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:38:54, skipping insertion in model container [2020-10-15 02:38:54,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:38:54" (3/3) ... [2020-10-15 02:38:54,708 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.ufo.BOUNDED-10.pals.c [2020-10-15 02:38:54,718 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 02:38:54,726 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 02:38:54,740 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 02:38:54,765 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 02:38:54,766 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 02:38:54,766 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 02:38:54,766 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 02:38:54,766 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 02:38:54,766 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 02:38:54,767 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 02:38:54,767 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 02:38:54,788 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states. [2020-10-15 02:38:54,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-15 02:38:54,799 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:38:54,800 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] [2020-10-15 02:38:54,801 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:38:54,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:38:54,807 INFO L82 PathProgramCache]: Analyzing trace with hash 993895196, now seen corresponding path program 1 times [2020-10-15 02:38:54,815 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:38:54,816 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [211599659] [2020-10-15 02:38:54,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:38:55,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:55,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:55,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:55,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-15 02:38:55,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:55,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 407 [2020-10-15 02:38:55,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:55,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:55,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:55,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-15 02:38:55,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:55,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-15 02:38:55,723 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-15 02:38:55,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:38:55,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:55,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:55,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:55,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:38:55,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:55,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-15 02:38:55,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:55,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:55,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:55,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:38:55,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:55,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:55,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:38:55,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:55,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:55,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:55,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:38:55,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:55,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:38:55,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:55,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:55,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:55,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:38:55,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:55,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:55,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-15 02:38:55,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:55,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:55,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:55,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:38:55,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:55,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:38:55,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:55,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:55,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:55,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:38:55,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:55,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:55,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-15 02:38:55,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:55,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:55,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:55,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:38:55,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:55,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 02:38:55,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:55,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:55,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:55,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:38:55,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:55,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-15 02:38:55,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-15 02:38:55,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:55,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:55,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:55,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:38:55,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:55,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:38:55,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:55,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:55,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:55,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:38:55,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:55,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:55,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-15 02:38:55,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:55,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:55,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:55,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:38:55,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:55,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:38:55,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:55,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:55,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:55,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:38:55,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:55,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:55,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-15 02:38:55,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:55,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:55,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:55,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:38:55,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:55,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:38:55,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:55,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:55,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:55,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:38:55,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:55,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:56,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-15 02:38:56,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:56,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:56,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:56,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:38:56,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:56,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:38:56,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:56,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:56,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:56,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:38:56,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:56,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:56,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-15 02:38:56,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:56,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:56,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:56,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:38:56,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:56,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:38:56,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:56,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:56,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:56,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:38:56,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:56,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:56,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:38:56,090 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [211599659] [2020-10-15 02:38:56,093 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:38:56,093 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 02:38:56,094 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943407750] [2020-10-15 02:38:56,098 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 02:38:56,099 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:38:56,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 02:38:56,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-15 02:38:56,115 INFO L87 Difference]: Start difference. First operand 159 states. Second operand 8 states. [2020-10-15 02:38:57,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:38:57,264 INFO L93 Difference]: Finished difference Result 276 states and 410 transitions. [2020-10-15 02:38:57,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-15 02:38:57,265 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 67 [2020-10-15 02:38:57,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:38:57,278 INFO L225 Difference]: With dead ends: 276 [2020-10-15 02:38:57,278 INFO L226 Difference]: Without dead ends: 159 [2020-10-15 02:38:57,282 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-10-15 02:38:57,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2020-10-15 02:38:57,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 154. [2020-10-15 02:38:57,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-10-15 02:38:57,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 234 transitions. [2020-10-15 02:38:57,341 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 234 transitions. Word has length 67 [2020-10-15 02:38:57,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:38:57,341 INFO L479 AbstractCegarLoop]: Abstraction has 154 states and 234 transitions. [2020-10-15 02:38:57,341 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 02:38:57,342 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 234 transitions. [2020-10-15 02:38:57,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-15 02:38:57,345 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:38:57,345 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] [2020-10-15 02:38:57,346 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 02:38:57,346 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:38:57,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:38:57,346 INFO L82 PathProgramCache]: Analyzing trace with hash -1762732070, now seen corresponding path program 1 times [2020-10-15 02:38:57,346 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:38:57,347 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1644049336] [2020-10-15 02:38:57,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:38:57,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:57,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:58,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:58,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-15 02:38:58,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:58,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 723 [2020-10-15 02:38:58,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:58,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:58,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:38:58,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-15 02:38:58,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:38:58,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:58,321 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-15 02:38:58,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:38:58,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:58,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:58,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:58,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:38:58,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:58,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 02:38:58,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:58,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:58,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:58,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:38:58,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:58,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-15 02:38:58,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:38:58,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:58,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:58,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:58,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:38:58,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:58,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 02:38:58,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:58,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:58,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:38:58,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:38:58,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:38:58,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:58,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-15 02:38:58,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:58,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:58,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:58,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:38:58,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:58,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:38:58,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:58,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:58,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:38:58,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:38:58,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:38:58,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:58,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-15 02:38:58,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:58,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:58,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:58,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:38:58,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:58,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:38:58,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:58,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:58,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:58,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:38:58,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:58,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:58,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-15 02:38:58,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:58,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:58,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:58,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:38:58,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:58,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:38:58,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:58,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:58,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:58,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:38:58,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:58,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:58,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-15 02:38:58,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:58,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:58,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:58,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:38:58,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:58,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:38:58,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:58,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:58,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:58,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:38:58,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:58,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:58,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-15 02:38:58,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:58,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:58,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:58,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:38:58,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:58,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:38:58,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:58,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:58,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:58,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:38:58,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:58,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:58,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-15 02:38:58,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:58,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:58,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:58,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:38:58,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:58,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:38:58,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:58,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:58,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:58,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:38:58,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:58,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:58,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-15 02:38:58,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:38:58,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:38:58,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:38:58,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:38:58,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:38:58,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:38:58,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:38:58,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:38:58,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:38:58,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:38:58,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:38:58,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:38:58,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:38:58,722 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1644049336] [2020-10-15 02:38:58,722 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:38:58,723 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-15 02:38:58,723 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913708210] [2020-10-15 02:38:58,726 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 02:38:58,726 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:38:58,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 02:38:58,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-15 02:38:58,728 INFO L87 Difference]: Start difference. First operand 154 states and 234 transitions. Second operand 14 states. [2020-10-15 02:38:58,998 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-15 02:38:59,168 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2020-10-15 02:38:59,416 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-10-15 02:38:59,555 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-15 02:39:01,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:39:01,284 INFO L93 Difference]: Finished difference Result 280 states and 416 transitions. [2020-10-15 02:39:01,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 02:39:01,284 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 67 [2020-10-15 02:39:01,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:39:01,289 INFO L225 Difference]: With dead ends: 280 [2020-10-15 02:39:01,289 INFO L226 Difference]: Without dead ends: 170 [2020-10-15 02:39:01,291 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:39:01,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-10-15 02:39:01,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 154. [2020-10-15 02:39:01,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-10-15 02:39:01,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 202 transitions. [2020-10-15 02:39:01,315 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 202 transitions. Word has length 67 [2020-10-15 02:39:01,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:39:01,315 INFO L479 AbstractCegarLoop]: Abstraction has 154 states and 202 transitions. [2020-10-15 02:39:01,316 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-15 02:39:01,316 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 202 transitions. [2020-10-15 02:39:01,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-15 02:39:01,319 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:39:01,319 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:39:01,320 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 02:39:01,320 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:39:01,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:39:01,320 INFO L82 PathProgramCache]: Analyzing trace with hash 1968782851, now seen corresponding path program 1 times [2020-10-15 02:39:01,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:39:01,321 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1399405357] [2020-10-15 02:39:01,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:39:01,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:01,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:01,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:01,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:01,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:03,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:03,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:06,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:06,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-15 02:39:06,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:39:06,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-15 02:39:06,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:06,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:06,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-15 02:39:06,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-15 02:39:06,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-15 02:39:06,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:39:06,598 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-15 02:39:06,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:39:06,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:06,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:06,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:06,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:39:06,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:06,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:39:06,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:06,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:06,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:39:06,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:06,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:39:06,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:39:06,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:39:06,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:06,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:06,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:06,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-15 02:39:06,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:06,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-15 02:39:06,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:06,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:06,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:39:06,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:06,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-15 02:39:06,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 02:39:06,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-15 02:39:06,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:06,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:06,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:06,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:39:06,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:06,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:39:06,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:06,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:06,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:39:06,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:06,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:39:06,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:06,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-15 02:39:06,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:06,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:06,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:06,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:39:06,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:06,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-15 02:39:06,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:06,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:06,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:39:06,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:39:06,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:39:06,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:39:06,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-15 02:39:06,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:06,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:06,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:06,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:39:06,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:06,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:39:06,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:06,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:06,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:39:06,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:39:06,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:39:06,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:39:06,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-15 02:39:06,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:06,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:06,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:06,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:39:06,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:06,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-15 02:39:06,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:06,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:06,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:39:06,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:39:06,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:39:06,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:39:07,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-15 02:39:07,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:07,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:07,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:07,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:39:07,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:07,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-15 02:39:07,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:07,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:07,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:39:07,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:39:07,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:39:07,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:39:07,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-15 02:39:07,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:07,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:07,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:07,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:39:07,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:07,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-15 02:39:07,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:07,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:07,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:39:07,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:39:07,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:39:07,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:39:07,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-15 02:39:07,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:07,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:07,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:07,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:39:07,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:07,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-15 02:39:07,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:07,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:07,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:39:07,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:39:07,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:39:07,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:39:07,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:39:07,295 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1399405357] [2020-10-15 02:39:07,295 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:39:07,296 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-15 02:39:07,296 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473964258] [2020-10-15 02:39:07,297 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-15 02:39:07,297 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:39:07,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-15 02:39:07,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2020-10-15 02:39:07,299 INFO L87 Difference]: Start difference. First operand 154 states and 202 transitions. Second operand 19 states. [2020-10-15 02:39:07,747 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 140 [2020-10-15 02:39:07,910 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-15 02:39:08,052 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-10-15 02:39:08,203 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-10-15 02:39:08,515 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 139 [2020-10-15 02:39:08,819 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71 [2020-10-15 02:39:09,114 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 74 [2020-10-15 02:39:09,692 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 74 [2020-10-15 02:39:10,435 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 74 [2020-10-15 02:39:11,452 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 74 [2020-10-15 02:39:12,926 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-10-15 02:39:13,112 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-15 02:39:13,273 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-15 02:39:13,563 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 142 [2020-10-15 02:39:15,303 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 70 [2020-10-15 02:39:16,459 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 76 [2020-10-15 02:39:16,869 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2020-10-15 02:39:18,014 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 76 [2020-10-15 02:39:18,362 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2020-10-15 02:39:19,428 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 76 [2020-10-15 02:39:19,712 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2020-10-15 02:39:20,802 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 76 [2020-10-15 02:39:21,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:39:21,887 INFO L93 Difference]: Finished difference Result 1397 states and 2011 transitions. [2020-10-15 02:39:21,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2020-10-15 02:39:21,887 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 98 [2020-10-15 02:39:21,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:39:21,905 INFO L225 Difference]: With dead ends: 1397 [2020-10-15 02:39:21,905 INFO L226 Difference]: Without dead ends: 1293 [2020-10-15 02:39:21,916 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4048 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=2135, Invalid=9637, Unknown=0, NotChecked=0, Total=11772 [2020-10-15 02:39:21,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1293 states. [2020-10-15 02:39:22,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1293 to 1218. [2020-10-15 02:39:22,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1218 states. [2020-10-15 02:39:22,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1218 states to 1218 states and 1781 transitions. [2020-10-15 02:39:22,067 INFO L78 Accepts]: Start accepts. Automaton has 1218 states and 1781 transitions. Word has length 98 [2020-10-15 02:39:22,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:39:22,068 INFO L479 AbstractCegarLoop]: Abstraction has 1218 states and 1781 transitions. [2020-10-15 02:39:22,068 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-15 02:39:22,069 INFO L276 IsEmpty]: Start isEmpty. Operand 1218 states and 1781 transitions. [2020-10-15 02:39:22,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-15 02:39:22,084 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:39:22,084 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:39:22,084 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 02:39:22,085 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:39:22,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:39:22,085 INFO L82 PathProgramCache]: Analyzing trace with hash 700162888, now seen corresponding path program 1 times [2020-10-15 02:39:22,085 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:39:22,086 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1747684681] [2020-10-15 02:39:22,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:39:22,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:22,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:22,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:22,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:22,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:22,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:27,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:27,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-15 02:39:27,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:39:27,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-15 02:39:27,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:27,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:27,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:39:27,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-15 02:39:27,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-15 02:39:27,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:39:27,332 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-15 02:39:27,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:39:27,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:27,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:27,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:27,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:39:27,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:27,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:39:27,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:27,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:27,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:39:27,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:27,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:39:27,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:39:27,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:39:27,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:27,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:27,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:27,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-15 02:39:27,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:27,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-15 02:39:27,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:27,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:27,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:39:27,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:27,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-15 02:39:27,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:39:27,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-15 02:39:27,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:27,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:27,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:27,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:39:27,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:27,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:39:27,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:27,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:27,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:39:27,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:27,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:39:27,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:39:27,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-15 02:39:27,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:27,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:27,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:27,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:39:27,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:27,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:39:27,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:27,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:27,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:39:27,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:27,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:39:27,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:39:27,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-15 02:39:27,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:27,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:27,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:27,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:39:27,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:27,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:39:27,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:27,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:27,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:39:27,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:27,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:39:27,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:39:27,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-15 02:39:27,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:27,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:27,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:27,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:39:27,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:27,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:39:27,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:27,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:27,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:39:27,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:27,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:39:27,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:39:27,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-15 02:39:27,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:27,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:27,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:27,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:39:27,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:27,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 02:39:27,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:27,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:27,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:39:27,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:39:27,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:39:27,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:27,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-15 02:39:27,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:27,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:27,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:27,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:39:27,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:27,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:39:27,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:27,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:27,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:39:27,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:39:27,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:39:27,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:39:27,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-15 02:39:27,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:27,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:27,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:27,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:39:27,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:27,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:39:27,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:27,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:27,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:39:27,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:39:27,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:39:27,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:39:27,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:39:27,784 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1747684681] [2020-10-15 02:39:27,785 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:39:27,785 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-15 02:39:27,785 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963905593] [2020-10-15 02:39:27,787 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 02:39:27,788 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:39:27,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 02:39:27,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-15 02:39:27,789 INFO L87 Difference]: Start difference. First operand 1218 states and 1781 transitions. Second operand 11 states. [2020-10-15 02:39:27,955 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-15 02:39:30,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:39:30,082 INFO L93 Difference]: Finished difference Result 3506 states and 5134 transitions. [2020-10-15 02:39:30,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-15 02:39:30,083 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 99 [2020-10-15 02:39:30,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:39:30,107 INFO L225 Difference]: With dead ends: 3506 [2020-10-15 02:39:30,108 INFO L226 Difference]: Without dead ends: 2338 [2020-10-15 02:39:30,114 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=148, Invalid=404, Unknown=0, NotChecked=0, Total=552 [2020-10-15 02:39:30,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2338 states. [2020-10-15 02:39:30,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2338 to 2237. [2020-10-15 02:39:30,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2237 states. [2020-10-15 02:39:30,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2237 states to 2237 states and 3270 transitions. [2020-10-15 02:39:30,357 INFO L78 Accepts]: Start accepts. Automaton has 2237 states and 3270 transitions. Word has length 99 [2020-10-15 02:39:30,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:39:30,357 INFO L479 AbstractCegarLoop]: Abstraction has 2237 states and 3270 transitions. [2020-10-15 02:39:30,357 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 02:39:30,358 INFO L276 IsEmpty]: Start isEmpty. Operand 2237 states and 3270 transitions. [2020-10-15 02:39:30,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-15 02:39:30,360 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:39:30,361 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:39:30,361 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 02:39:30,361 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:39:30,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:39:30,362 INFO L82 PathProgramCache]: Analyzing trace with hash 1197043037, now seen corresponding path program 1 times [2020-10-15 02:39:30,362 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:39:30,362 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [246024707] [2020-10-15 02:39:30,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:39:30,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:30,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:30,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:30,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:30,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:32,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:35,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:35,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-15 02:39:35,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:39:35,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-15 02:39:35,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:35,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:35,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:39:35,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-15 02:39:35,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-15 02:39:35,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:39:35,609 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-15 02:39:35,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:39:35,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:35,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:35,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:35,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:39:35,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:35,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:39:35,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:35,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:35,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:39:35,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:35,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:39:35,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:35,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:39:35,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:35,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:35,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:35,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-15 02:39:35,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:35,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:39:35,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:35,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:35,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:39:35,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:35,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-15 02:39:35,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:39:35,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-15 02:39:35,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:35,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:35,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:35,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:39:35,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:35,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:39:35,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:35,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:35,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:39:35,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:35,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:39:35,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:39:35,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-15 02:39:35,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:35,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:35,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:35,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:39:35,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:35,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:39:35,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:35,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:35,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:39:35,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:35,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:39:35,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:35,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-15 02:39:35,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:35,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:35,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:35,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:39:35,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:35,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:39:35,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:35,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:35,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:39:35,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:35,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:39:35,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:39:35,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-15 02:39:35,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:35,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:35,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:35,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:39:35,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:35,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:39:35,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:35,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:35,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:39:35,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:39:35,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:39:35,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:35,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-15 02:39:35,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:35,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:35,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:35,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:39:35,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:35,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:39:35,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:35,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:35,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:39:35,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-15 02:39:35,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:39:35,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:39:35,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-15 02:39:35,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:35,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:35,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:35,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:39:35,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:35,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:39:35,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:35,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:35,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:39:35,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:39:35,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:39:35,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:39:35,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-15 02:39:35,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:35,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:35,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:35,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:39:35,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:35,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:39:35,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:35,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:35,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:39:35,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:39:35,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:39:35,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:35,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:39:35,891 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [246024707] [2020-10-15 02:39:35,891 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:39:35,891 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-15 02:39:35,892 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845455387] [2020-10-15 02:39:35,892 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 02:39:35,892 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:39:35,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 02:39:35,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-15 02:39:35,893 INFO L87 Difference]: Start difference. First operand 2237 states and 3270 transitions. Second operand 11 states. [2020-10-15 02:39:36,063 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-15 02:39:38,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:39:38,276 INFO L93 Difference]: Finished difference Result 6505 states and 9478 transitions. [2020-10-15 02:39:38,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-15 02:39:38,276 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 100 [2020-10-15 02:39:38,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:39:38,349 INFO L225 Difference]: With dead ends: 6505 [2020-10-15 02:39:38,349 INFO L226 Difference]: Without dead ends: 4318 [2020-10-15 02:39:38,355 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=152, Invalid=400, Unknown=0, NotChecked=0, Total=552 [2020-10-15 02:39:38,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4318 states. [2020-10-15 02:39:38,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4318 to 4140. [2020-10-15 02:39:38,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4140 states. [2020-10-15 02:39:38,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4140 states to 4140 states and 6015 transitions. [2020-10-15 02:39:38,610 INFO L78 Accepts]: Start accepts. Automaton has 4140 states and 6015 transitions. Word has length 100 [2020-10-15 02:39:38,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:39:38,611 INFO L479 AbstractCegarLoop]: Abstraction has 4140 states and 6015 transitions. [2020-10-15 02:39:38,611 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 02:39:38,611 INFO L276 IsEmpty]: Start isEmpty. Operand 4140 states and 6015 transitions. [2020-10-15 02:39:38,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-15 02:39:38,613 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:39:38,613 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:39:38,613 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 02:39:38,614 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:39:38,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:39:38,614 INFO L82 PathProgramCache]: Analyzing trace with hash 1250141856, now seen corresponding path program 1 times [2020-10-15 02:39:38,614 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:39:38,615 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [159434094] [2020-10-15 02:39:38,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:39:38,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:38,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:38,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:38,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:39,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:43,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:43,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-15 02:39:43,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:39:43,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-15 02:39:43,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:43,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:43,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:39:43,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-15 02:39:43,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-15 02:39:43,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:43,823 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-15 02:39:43,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:39:43,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:43,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:43,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:43,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:39:43,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:43,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:39:43,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:43,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:43,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:39:43,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:43,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:39:43,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:43,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:39:43,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:43,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:43,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:43,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-15 02:39:43,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:43,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:39:43,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:43,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:43,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:39:43,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:43,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-15 02:39:43,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:43,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-15 02:39:43,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:43,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:43,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:43,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:39:43,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:43,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:39:43,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:43,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:43,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:39:43,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:43,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:39:43,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:43,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-15 02:39:43,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:43,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:43,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:43,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:39:43,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:43,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:39:43,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:43,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:43,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:39:43,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:43,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:39:43,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:43,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-15 02:39:43,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:43,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:43,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:43,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:39:43,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:43,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:39:43,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:43,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:43,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:39:43,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:43,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:39:43,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:43,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-15 02:39:43,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:43,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:43,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:43,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:39:43,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:43,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:39:43,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:43,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:43,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:39:43,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:43,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:39:43,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:43,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-15 02:39:43,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:43,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:43,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:43,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:39:43,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:43,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:39:43,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:43,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:43,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:39:43,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:43,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:39:43,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:44,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-15 02:39:44,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:44,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:44,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:44,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:39:44,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:44,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:39:44,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:44,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:44,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:39:44,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:39:44,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:39:44,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:44,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-15 02:39:44,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:44,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:44,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:44,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:39:44,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:44,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:39:44,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:44,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:44,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:39:44,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:39:44,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:39:44,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:44,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:39:44,071 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [159434094] [2020-10-15 02:39:44,071 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:39:44,071 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-15 02:39:44,071 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684046673] [2020-10-15 02:39:44,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 02:39:44,072 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:39:44,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 02:39:44,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-15 02:39:44,073 INFO L87 Difference]: Start difference. First operand 4140 states and 6015 transitions. Second operand 11 states. [2020-10-15 02:39:44,226 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-15 02:39:46,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:39:46,409 INFO L93 Difference]: Finished difference Result 12040 states and 17421 transitions. [2020-10-15 02:39:46,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-15 02:39:46,410 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 101 [2020-10-15 02:39:46,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:39:46,451 INFO L225 Difference]: With dead ends: 12040 [2020-10-15 02:39:46,451 INFO L226 Difference]: Without dead ends: 7950 [2020-10-15 02:39:46,465 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=148, Invalid=404, Unknown=0, NotChecked=0, Total=552 [2020-10-15 02:39:46,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7950 states. [2020-10-15 02:39:46,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7950 to 7640. [2020-10-15 02:39:46,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7640 states. [2020-10-15 02:39:46,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7640 states to 7640 states and 11015 transitions. [2020-10-15 02:39:46,994 INFO L78 Accepts]: Start accepts. Automaton has 7640 states and 11015 transitions. Word has length 101 [2020-10-15 02:39:46,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:39:46,995 INFO L479 AbstractCegarLoop]: Abstraction has 7640 states and 11015 transitions. [2020-10-15 02:39:46,995 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 02:39:46,995 INFO L276 IsEmpty]: Start isEmpty. Operand 7640 states and 11015 transitions. [2020-10-15 02:39:46,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-15 02:39:46,997 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:39:46,997 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:39:46,997 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 02:39:46,998 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:39:47,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:39:47,001 INFO L82 PathProgramCache]: Analyzing trace with hash 765297571, now seen corresponding path program 1 times [2020-10-15 02:39:47,001 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:39:47,003 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [84776859] [2020-10-15 02:39:47,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:39:47,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:47,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:47,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:47,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:50,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:50,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-15 02:39:50,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 02:39:50,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3119 [2020-10-15 02:39:50,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:50,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:50,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:39:50,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-15 02:39:50,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-15 02:39:50,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:50,329 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-15 02:39:50,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:39:50,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:50,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:50,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:50,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:39:50,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:50,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:39:50,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:50,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:50,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:39:50,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:50,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:39:50,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:39:50,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:39:50,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:50,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:50,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:50,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-15 02:39:50,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:50,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 02:39:50,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:50,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:50,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:39:50,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:50,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-15 02:39:50,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:39:50,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-15 02:39:50,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:50,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:50,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:50,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:39:50,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:50,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:39:50,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:50,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:50,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:39:50,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:50,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:39:50,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:39:50,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-15 02:39:50,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:50,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:50,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:50,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:39:50,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:50,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:39:50,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:50,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:50,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:39:50,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:50,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:39:50,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:39:50,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-15 02:39:50,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:50,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:50,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:50,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:39:50,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:50,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:39:50,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:50,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:50,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:39:50,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:39:50,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:39:50,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:39:50,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-15 02:39:50,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:50,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:50,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:50,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:39:50,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:50,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:39:50,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:50,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:50,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:39:50,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-15 02:39:50,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:39:50,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:50,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-15 02:39:50,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:50,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:50,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:50,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:39:50,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:50,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:39:50,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:50,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:50,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:39:50,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-15 02:39:50,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:39:50,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:39:50,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-15 02:39:50,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:50,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:50,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:50,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:39:50,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:50,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:39:50,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:50,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:50,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:39:50,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-15 02:39:50,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:39:50,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:50,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-15 02:39:50,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:50,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:50,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:50,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:39:50,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:50,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:39:50,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:50,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:50,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:39:50,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:39:50,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:39:50,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:39:50,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:39:50,674 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [84776859] [2020-10-15 02:39:50,674 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:39:50,674 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-15 02:39:50,674 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826840474] [2020-10-15 02:39:50,675 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 02:39:50,675 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:39:50,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 02:39:50,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-15 02:39:50,676 INFO L87 Difference]: Start difference. First operand 7640 states and 11015 transitions. Second operand 11 states. [2020-10-15 02:39:50,864 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-15 02:39:53,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:39:53,469 INFO L93 Difference]: Finished difference Result 22220 states and 31841 transitions. [2020-10-15 02:39:53,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-15 02:39:53,469 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 102 [2020-10-15 02:39:53,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:39:53,541 INFO L225 Difference]: With dead ends: 22220 [2020-10-15 02:39:53,541 INFO L226 Difference]: Without dead ends: 14630 [2020-10-15 02:39:53,565 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=148, Invalid=404, Unknown=0, NotChecked=0, Total=552 [2020-10-15 02:39:53,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14630 states. [2020-10-15 02:39:54,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14630 to 14100. [2020-10-15 02:39:54,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14100 states. [2020-10-15 02:39:54,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14100 states to 14100 states and 20083 transitions. [2020-10-15 02:39:54,389 INFO L78 Accepts]: Start accepts. Automaton has 14100 states and 20083 transitions. Word has length 102 [2020-10-15 02:39:54,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:39:54,389 INFO L479 AbstractCegarLoop]: Abstraction has 14100 states and 20083 transitions. [2020-10-15 02:39:54,389 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 02:39:54,390 INFO L276 IsEmpty]: Start isEmpty. Operand 14100 states and 20083 transitions. [2020-10-15 02:39:54,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-15 02:39:54,392 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:39:54,392 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:39:54,392 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 02:39:54,393 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:39:54,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:39:54,393 INFO L82 PathProgramCache]: Analyzing trace with hash -427298302, now seen corresponding path program 1 times [2020-10-15 02:39:54,393 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:39:54,396 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1829540565] [2020-10-15 02:39:54,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:39:54,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:54,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:54,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:55,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:55,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-15 02:39:55,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:39:55,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 894 [2020-10-15 02:39:55,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:55,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:55,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:39:55,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-15 02:39:55,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-15 02:39:55,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:55,471 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-15 02:39:55,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:39:55,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:55,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:55,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:55,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:39:55,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:55,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:39:55,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:55,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:55,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:39:55,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:55,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:39:55,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:39:55,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:39:55,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:55,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:55,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:55,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-15 02:39:55,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:55,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 02:39:55,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:55,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:55,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:39:55,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:55,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:39:55,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:55,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-15 02:39:55,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:55,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:55,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:55,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:39:55,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:55,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:39:55,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:55,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:55,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:39:55,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:39:55,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:39:55,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:39:55,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-15 02:39:55,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:55,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:55,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:55,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:39:55,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:55,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:39:55,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:55,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:55,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:39:55,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:39:55,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:39:55,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:39:55,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-15 02:39:55,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:55,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:55,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:55,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:39:55,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:55,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:39:55,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:55,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:55,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:39:55,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-15 02:39:55,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:39:55,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:55,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-15 02:39:55,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:55,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:55,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:55,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:39:55,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:55,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:39:55,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:55,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:55,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:39:55,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-15 02:39:55,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:39:55,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:39:55,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-15 02:39:55,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:55,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:55,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:55,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:39:55,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:55,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:39:55,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:55,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:55,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:39:55,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-15 02:39:55,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:39:55,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:39:55,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-15 02:39:55,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:55,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:55,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:55,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:39:55,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:55,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:39:55,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:55,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:55,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:39:55,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-15 02:39:55,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:39:55,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:39:55,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-15 02:39:55,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:39:55,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:39:55,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:39:55,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:39:55,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:39:55,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:39:55,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:39:55,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:39:55,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:39:55,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:39:55,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:39:55,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:39:55,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:39:55,782 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1829540565] [2020-10-15 02:39:55,782 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:39:55,783 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-15 02:39:55,783 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580868998] [2020-10-15 02:39:55,783 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 02:39:55,783 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:39:55,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 02:39:55,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-15 02:39:55,785 INFO L87 Difference]: Start difference. First operand 14100 states and 20083 transitions. Second operand 11 states. [2020-10-15 02:39:55,945 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-15 02:39:59,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:39:59,267 INFO L93 Difference]: Finished difference Result 40872 states and 57797 transitions. [2020-10-15 02:39:59,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-15 02:39:59,268 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 103 [2020-10-15 02:39:59,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:39:59,427 INFO L225 Difference]: With dead ends: 40872 [2020-10-15 02:39:59,427 INFO L226 Difference]: Without dead ends: 26822 [2020-10-15 02:39:59,486 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=152, Invalid=400, Unknown=0, NotChecked=0, Total=552 [2020-10-15 02:39:59,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26822 states. [2020-10-15 02:40:01,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26822 to 25940. [2020-10-15 02:40:01,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25940 states. [2020-10-15 02:40:01,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25940 states to 25940 states and 36355 transitions. [2020-10-15 02:40:01,257 INFO L78 Accepts]: Start accepts. Automaton has 25940 states and 36355 transitions. Word has length 103 [2020-10-15 02:40:01,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:40:01,257 INFO L479 AbstractCegarLoop]: Abstraction has 25940 states and 36355 transitions. [2020-10-15 02:40:01,257 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 02:40:01,257 INFO L276 IsEmpty]: Start isEmpty. Operand 25940 states and 36355 transitions. [2020-10-15 02:40:01,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-15 02:40:01,258 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:40:01,258 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:40:01,258 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 02:40:01,259 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:40:01,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:40:01,259 INFO L82 PathProgramCache]: Analyzing trace with hash -2030728467, now seen corresponding path program 1 times [2020-10-15 02:40:01,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:40:01,259 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [148710448] [2020-10-15 02:40:01,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:40:01,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:40:01,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:40:01,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:40:02,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:40:02,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-15 02:40:02,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:40:02,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1526 [2020-10-15 02:40:02,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:40:02,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:40:02,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:40:02,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-15 02:40:02,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-15 02:40:02,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:40:02,985 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-15 02:40:02,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:40:02,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:40:02,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:40:02,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:40:02,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:40:02,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:40:02,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:40:02,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:40:02,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:40:02,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:40:02,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:40:02,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:40:02,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:40:03,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:40:03,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:40:03,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:40:03,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:40:03,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-15 02:40:03,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:40:03,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:40:03,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:40:03,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:40:03,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:40:03,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:40:03,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 02:40:03,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:40:03,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-15 02:40:03,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:40:03,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:40:03,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:40:03,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:40:03,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:40:03,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:40:03,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:40:03,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:40:03,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:40:03,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:40:03,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:40:03,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:40:03,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-15 02:40:03,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:40:03,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:40:03,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:40:03,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:40:03,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:40:03,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:40:03,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:40:03,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:40:03,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:40:03,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:40:03,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:40:03,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:40:03,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-15 02:40:03,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:40:03,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:40:03,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:40:03,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:40:03,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:40:03,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:40:03,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:40:03,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:40:03,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:40:03,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:40:03,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:40:03,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:40:03,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-15 02:40:03,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:40:03,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:40:03,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:40:03,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:40:03,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:40:03,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:40:03,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:40:03,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:40:03,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:40:03,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:40:03,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:40:03,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:40:03,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-15 02:40:03,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:40:03,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:40:03,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:40:03,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:40:03,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:40:03,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:40:03,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:40:03,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:40:03,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:40:03,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:40:03,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:40:03,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:40:03,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-15 02:40:03,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:40:03,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:40:03,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:40:03,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:40:03,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:40:03,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:40:03,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:40:03,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:40:03,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:40:03,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:40:03,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:40:03,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:40:03,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-15 02:40:03,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:40:03,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:40:03,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:40:03,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:40:03,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:40:03,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:40:03,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:40:03,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:40:03,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:40:03,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:40:03,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:40:03,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:40:03,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:40:03,352 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [148710448] [2020-10-15 02:40:03,352 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:40:03,353 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-15 02:40:03,353 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682348564] [2020-10-15 02:40:03,353 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-15 02:40:03,353 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:40:03,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-15 02:40:03,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2020-10-15 02:40:03,354 INFO L87 Difference]: Start difference. First operand 25940 states and 36355 transitions. Second operand 18 states. [2020-10-15 02:40:03,574 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:40:03,753 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:40:04,222 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:40:04,713 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-15 02:40:04,910 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:40:05,073 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-15 02:40:05,797 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:40:06,003 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:40:06,182 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-15 02:40:06,359 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:40:06,526 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-15 02:40:06,932 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-15 02:40:07,096 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:40:08,220 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:40:08,415 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:40:08,604 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:40:08,798 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:40:08,975 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:40:09,158 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:40:09,334 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:40:09,705 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:40:09,894 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:40:10,075 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:40:10,257 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:40:10,440 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:40:10,614 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:40:11,355 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-15 02:40:11,533 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:40:13,378 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:40:13,571 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-15 02:40:13,748 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:40:13,921 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-15 02:40:14,119 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:40:14,306 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-15 02:40:14,527 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:40:14,716 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-15 02:40:14,900 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:40:15,076 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:40:15,570 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:40:15,788 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:40:15,969 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:40:16,157 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:40:16,358 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:40:16,551 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:40:16,739 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:40:16,924 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:40:17,132 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:40:17,311 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:40:17,890 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-15 02:40:18,074 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-15 02:40:18,462 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-15 02:40:18,645 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-15 02:40:19,098 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-15 02:40:19,307 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-15 02:40:19,472 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-15 02:40:19,644 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-15 02:40:20,818 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-15 02:40:21,034 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-15 02:40:42,119 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-15 02:41:20,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:41:20,247 INFO L93 Difference]: Finished difference Result 627832 states and 927472 transitions. [2020-10-15 02:41:20,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 303 states. [2020-10-15 02:41:20,248 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 104 [2020-10-15 02:41:20,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:41:22,383 INFO L225 Difference]: With dead ends: 627832 [2020-10-15 02:41:22,383 INFO L226 Difference]: Without dead ends: 601942 [2020-10-15 02:41:22,737 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 311 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42621 ImplicationChecksByTransitivity, 29.3s TimeCoverageRelationStatistics Valid=8249, Invalid=89407, Unknown=0, NotChecked=0, Total=97656 [2020-10-15 02:41:23,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601942 states.