/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 09:29:55,870 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 09:29:55,872 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 09:29:55,895 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 09:29:55,896 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 09:29:55,897 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 09:29:55,898 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 09:29:55,900 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 09:29:55,902 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 09:29:55,902 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 09:29:55,903 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 09:29:55,904 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 09:29:55,905 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 09:29:55,906 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 09:29:55,907 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 09:29:55,908 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 09:29:55,909 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 09:29:55,910 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 09:29:55,911 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 09:29:55,913 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 09:29:55,915 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 09:29:55,916 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 09:29:55,917 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 09:29:55,918 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 09:29:55,920 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 09:29:55,921 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 09:29:55,921 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 09:29:55,922 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 09:29:55,922 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 09:29:55,923 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 09:29:55,924 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 09:29:55,924 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 09:29:55,925 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 09:29:55,926 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 09:29:55,927 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 09:29:55,927 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 09:29:55,928 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 09:29:55,928 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 09:29:55,928 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 09:29:55,929 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 09:29:55,930 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 09:29:55,931 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 09:29:55,954 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 09:29:55,954 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 09:29:55,955 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 09:29:55,956 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 09:29:55,956 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 09:29:55,956 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 09:29:55,956 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 09:29:55,956 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 09:29:55,957 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 09:29:55,957 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 09:29:55,957 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 09:29:55,957 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 09:29:55,957 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 09:29:55,958 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 09:29:55,958 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 09:29:55,958 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 09:29:55,958 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 09:29:55,958 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 09:29:55,959 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 09:29:55,959 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 09:29:55,959 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 09:29:55,959 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 09:29:55,959 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 09:29:55,960 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 09:29:55,960 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 09:29:55,960 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 09:29:55,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 09:29:55,960 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 09:29:55,960 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 09:29:55,961 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 09:29:56,293 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 09:29:56,305 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 09:29:56,308 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 09:29:56,310 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 09:29:56,311 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 09:29:56,311 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-14 09:29:56,375 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/301976f51/140ccaab00b64a4ba169d2fe2b7b92be/FLAG2a29b634d [2020-10-14 09:29:57,109 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 09:29:57,109 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-14 09:29:57,141 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/301976f51/140ccaab00b64a4ba169d2fe2b7b92be/FLAG2a29b634d [2020-10-14 09:29:57,225 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/301976f51/140ccaab00b64a4ba169d2fe2b7b92be [2020-10-14 09:29:57,234 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 09:29:57,235 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 09:29:57,236 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 09:29:57,237 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 09:29:57,240 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 09:29:57,242 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:29:57" (1/1) ... [2020-10-14 09:29:57,245 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48b302c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:29:57, skipping insertion in model container [2020-10-14 09:29:57,245 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:29:57" (1/1) ... [2020-10-14 09:29:57,254 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 09:29:57,428 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 09:29:58,900 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 09:29:58,913 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 09:29:59,870 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 09:29:59,910 INFO L208 MainTranslator]: Completed translation [2020-10-14 09:29:59,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:29:59 WrapperNode [2020-10-14 09:29:59,911 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 09:29:59,912 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 09:29:59,912 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 09:29:59,912 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 09:29:59,934 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:29:59" (1/1) ... [2020-10-14 09:29:59,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:29:59" (1/1) ... [2020-10-14 09:30:00,006 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:29:59" (1/1) ... [2020-10-14 09:30:00,006 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:29:59" (1/1) ... [2020-10-14 09:30:00,091 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:29:59" (1/1) ... [2020-10-14 09:30:00,138 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:29:59" (1/1) ... [2020-10-14 09:30:00,153 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:29:59" (1/1) ... [2020-10-14 09:30:00,167 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 09:30:00,167 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 09:30:00,167 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 09:30:00,168 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 09:30:00,169 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:29:59" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 09:30:00,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 09:30:00,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 09:30:00,239 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 09:30:00,239 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 09:30:00,240 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 09:30:00,240 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-14 09:30:00,240 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-14 09:30:00,240 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-14 09:30:00,240 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-14 09:30:00,241 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 09:30:00,241 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 09:30:00,241 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-14 09:30:00,241 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-14 09:30:00,241 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-14 09:30:00,241 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-14 09:30:00,242 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-14 09:30:00,242 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-14 09:30:00,242 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-14 09:30:00,242 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-14 09:30:00,242 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 09:30:00,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 09:30:00,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 09:30:03,490 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 09:30:03,490 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-14 09:30:03,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 09:30:03 BoogieIcfgContainer [2020-10-14 09:30:03,503 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 09:30:03,504 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 09:30:03,504 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 09:30:03,508 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 09:30:03,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 09:29:57" (1/3) ... [2020-10-14 09:30:03,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@275fe492 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 09:30:03, skipping insertion in model container [2020-10-14 09:30:03,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:29:59" (2/3) ... [2020-10-14 09:30:03,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@275fe492 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 09:30:03, skipping insertion in model container [2020-10-14 09:30:03,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 09:30:03" (3/3) ... [2020-10-14 09:30:03,512 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-14 09:30:03,523 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 09:30:03,533 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2020-10-14 09:30:03,547 INFO L251 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2020-10-14 09:30:03,575 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 09:30:03,575 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 09:30:03,575 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 09:30:03,575 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 09:30:03,575 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 09:30:03,576 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 09:30:03,576 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 09:30:03,576 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 09:30:03,616 INFO L276 IsEmpty]: Start isEmpty. Operand 1004 states. [2020-10-14 09:30:03,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2020-10-14 09:30:03,647 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 09:30:03,649 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 09:30:03,649 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 09:30:03,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 09:30:03,657 INFO L82 PathProgramCache]: Analyzing trace with hash -1144283241, now seen corresponding path program 1 times [2020-10-14 09:30:03,666 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 09:30:03,667 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [931928193] [2020-10-14 09:30:03,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 09:30:04,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:30:04,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:05,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:06,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:06,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:06,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:07,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:07,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:07,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:07,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:07,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:07,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:08,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:08,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:08,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:09,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:30:09,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 318 [2020-10-14 09:30:09,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-14 09:30:09,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-14 09:30:09,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:30:09,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:30:09,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 09:30:09,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-14 09:30:09,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 217 [2020-10-14 09:30:09,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 09:30:10,404 WARN L193 SmtUtils]: Spent 596.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-14 09:30:10,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 09:30:10,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:30:10,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:10,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:30:10,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 09:30:10,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 09:30:10,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 09:30:10,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:30:10,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:30:10,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 09:30:10,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 09:30:10,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 09:30:10,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 09:30:10,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 09:30:10,609 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [931928193] [2020-10-14 09:30:10,611 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 09:30:10,612 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 09:30:10,613 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533336675] [2020-10-14 09:30:10,622 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 09:30:10,622 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 09:30:10,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 09:30:10,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 09:30:10,644 INFO L87 Difference]: Start difference. First operand 1004 states. Second operand 4 states. [2020-10-14 09:30:11,309 WARN L193 SmtUtils]: Spent 557.00 ms on a formula simplification that was a NOOP. DAG size: 323 [2020-10-14 09:30:18,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 09:30:18,844 INFO L93 Difference]: Finished difference Result 1763 states and 3121 transitions. [2020-10-14 09:30:18,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 09:30:18,846 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 312 [2020-10-14 09:30:18,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 09:30:18,877 INFO L225 Difference]: With dead ends: 1763 [2020-10-14 09:30:18,878 INFO L226 Difference]: Without dead ends: 1457 [2020-10-14 09:30:18,885 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 09:30:18,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1457 states. [2020-10-14 09:30:19,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1457 to 1455. [2020-10-14 09:30:19,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1455 states. [2020-10-14 09:30:19,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1455 states to 1455 states and 2235 transitions. [2020-10-14 09:30:19,043 INFO L78 Accepts]: Start accepts. Automaton has 1455 states and 2235 transitions. Word has length 312 [2020-10-14 09:30:19,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 09:30:19,048 INFO L479 AbstractCegarLoop]: Abstraction has 1455 states and 2235 transitions. [2020-10-14 09:30:19,049 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 09:30:19,049 INFO L276 IsEmpty]: Start isEmpty. Operand 1455 states and 2235 transitions. [2020-10-14 09:30:19,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2020-10-14 09:30:19,063 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 09:30:19,064 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 09:30:19,068 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 09:30:19,069 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 09:30:19,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 09:30:19,069 INFO L82 PathProgramCache]: Analyzing trace with hash 959451509, now seen corresponding path program 1 times [2020-10-14 09:30:19,070 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 09:30:19,070 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1199116805] [2020-10-14 09:30:19,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 09:30:19,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:30:19,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:20,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:20,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:20,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:21,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:21,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:21,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:21,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:21,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:21,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:21,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:22,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:22,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:22,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:24,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:24,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:30:24,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 318 [2020-10-14 09:30:24,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-14 09:30:24,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-10-14 09:30:24,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:30:24,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:30:24,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 09:30:24,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-10-14 09:30:24,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 224 [2020-10-14 09:30:24,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 09:30:25,110 WARN L193 SmtUtils]: Spent 491.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-14 09:30:25,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 09:30:25,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:30:25,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:25,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:30:25,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 09:30:25,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 09:30:25,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 09:30:25,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:30:25,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:30:25,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 09:30:25,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 09:30:25,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 09:30:25,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 09:30:25,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 09:30:25,311 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1199116805] [2020-10-14 09:30:25,311 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 09:30:25,311 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 09:30:25,311 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435935657] [2020-10-14 09:30:25,314 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 09:30:25,315 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 09:30:25,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 09:30:25,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 09:30:25,315 INFO L87 Difference]: Start difference. First operand 1455 states and 2235 transitions. Second operand 4 states. [2020-10-14 09:30:26,135 WARN L193 SmtUtils]: Spent 778.00 ms on a formula simplification that was a NOOP. DAG size: 323 [2020-10-14 09:30:32,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 09:30:32,919 INFO L93 Difference]: Finished difference Result 2804 states and 4353 transitions. [2020-10-14 09:30:32,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 09:30:32,922 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 312 [2020-10-14 09:30:32,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 09:30:32,937 INFO L225 Difference]: With dead ends: 2804 [2020-10-14 09:30:32,937 INFO L226 Difference]: Without dead ends: 2369 [2020-10-14 09:30:32,945 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 09:30:32,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2369 states. [2020-10-14 09:30:33,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2369 to 2367. [2020-10-14 09:30:33,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2367 states. [2020-10-14 09:30:33,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2367 states to 2367 states and 3653 transitions. [2020-10-14 09:30:33,038 INFO L78 Accepts]: Start accepts. Automaton has 2367 states and 3653 transitions. Word has length 312 [2020-10-14 09:30:33,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 09:30:33,039 INFO L479 AbstractCegarLoop]: Abstraction has 2367 states and 3653 transitions. [2020-10-14 09:30:33,039 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 09:30:33,039 INFO L276 IsEmpty]: Start isEmpty. Operand 2367 states and 3653 transitions. [2020-10-14 09:30:33,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2020-10-14 09:30:33,048 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 09:30:33,048 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 09:30:33,049 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 09:30:33,052 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 09:30:33,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 09:30:33,053 INFO L82 PathProgramCache]: Analyzing trace with hash 380765317, now seen corresponding path program 1 times [2020-10-14 09:30:33,053 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 09:30:33,054 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2098676766] [2020-10-14 09:30:33,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 09:30:33,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:30:33,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:33,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:33,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:34,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:34,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:34,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:34,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:34,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:34,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:34,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:34,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:35,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:35,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:35,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:37,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:37,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:37,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:38,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:30:38,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 318 [2020-10-14 09:30:38,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-14 09:30:38,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-14 09:30:38,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:30:38,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:30:38,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 09:30:38,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-10-14 09:30:38,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 231 [2020-10-14 09:30:38,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 09:30:39,064 WARN L193 SmtUtils]: Spent 719.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-14 09:30:39,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 09:30:39,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:30:39,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:39,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:30:39,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 09:30:39,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 09:30:39,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 09:30:39,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:30:39,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:30:39,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 09:30:39,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 09:30:39,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 09:30:39,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 09:30:39,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 09:30:39,380 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2098676766] [2020-10-14 09:30:39,381 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 09:30:39,382 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 09:30:39,382 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670608008] [2020-10-14 09:30:39,383 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 09:30:39,384 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 09:30:39,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 09:30:39,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 09:30:39,385 INFO L87 Difference]: Start difference. First operand 2367 states and 3653 transitions. Second operand 4 states. [2020-10-14 09:30:40,030 WARN L193 SmtUtils]: Spent 577.00 ms on a formula simplification that was a NOOP. DAG size: 323 [2020-10-14 09:30:46,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 09:30:46,711 INFO L93 Difference]: Finished difference Result 4914 states and 7674 transitions. [2020-10-14 09:30:46,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 09:30:46,712 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 312 [2020-10-14 09:30:46,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 09:30:46,732 INFO L225 Difference]: With dead ends: 4914 [2020-10-14 09:30:46,732 INFO L226 Difference]: Without dead ends: 4197 [2020-10-14 09:30:46,735 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 09:30:46,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4197 states. [2020-10-14 09:30:46,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4197 to 4195. [2020-10-14 09:30:46,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4195 states. [2020-10-14 09:30:46,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4195 states to 4195 states and 6493 transitions. [2020-10-14 09:30:46,860 INFO L78 Accepts]: Start accepts. Automaton has 4195 states and 6493 transitions. Word has length 312 [2020-10-14 09:30:46,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 09:30:46,861 INFO L479 AbstractCegarLoop]: Abstraction has 4195 states and 6493 transitions. [2020-10-14 09:30:46,861 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 09:30:46,862 INFO L276 IsEmpty]: Start isEmpty. Operand 4195 states and 6493 transitions. [2020-10-14 09:30:46,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2020-10-14 09:30:46,875 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 09:30:46,876 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 09:30:46,876 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 09:30:46,876 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 09:30:46,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 09:30:46,877 INFO L82 PathProgramCache]: Analyzing trace with hash -785661435, now seen corresponding path program 1 times [2020-10-14 09:30:46,877 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 09:30:46,877 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1037084356] [2020-10-14 09:30:46,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 09:30:47,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:30:47,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:47,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:47,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:47,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:47,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:48,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:48,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:48,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:48,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:48,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:48,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:48,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:48,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:48,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:50,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:50,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:50,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:52,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:30:52,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 318 [2020-10-14 09:30:52,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-14 09:30:52,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-10-14 09:30:52,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:30:52,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:30:52,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 09:30:52,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-14 09:30:52,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 238 [2020-10-14 09:30:52,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 09:30:52,792 WARN L193 SmtUtils]: Spent 565.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-14 09:30:52,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 09:30:52,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:30:52,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:30:52,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:30:52,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 09:30:52,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 09:30:52,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 09:30:52,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:30:52,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:30:52,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 09:30:52,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 09:30:52,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 09:30:52,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 09:30:52,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 09:30:52,983 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1037084356] [2020-10-14 09:30:52,983 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 09:30:52,983 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 09:30:52,984 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106633686] [2020-10-14 09:30:52,984 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 09:30:52,985 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 09:30:52,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 09:30:52,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 09:30:52,985 INFO L87 Difference]: Start difference. First operand 4195 states and 6493 transitions. Second operand 4 states. [2020-10-14 09:30:53,534 WARN L193 SmtUtils]: Spent 506.00 ms on a formula simplification that was a NOOP. DAG size: 323 [2020-10-14 09:30:59,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 09:30:59,532 INFO L93 Difference]: Finished difference Result 9142 states and 14322 transitions. [2020-10-14 09:30:59,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 09:30:59,533 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 312 [2020-10-14 09:30:59,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 09:30:59,568 INFO L225 Difference]: With dead ends: 9142 [2020-10-14 09:30:59,569 INFO L226 Difference]: Without dead ends: 7861 [2020-10-14 09:30:59,573 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 09:30:59,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7861 states. [2020-10-14 09:30:59,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7861 to 7859. [2020-10-14 09:30:59,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7859 states. [2020-10-14 09:30:59,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7859 states to 7859 states and 12181 transitions. [2020-10-14 09:30:59,800 INFO L78 Accepts]: Start accepts. Automaton has 7859 states and 12181 transitions. Word has length 312 [2020-10-14 09:30:59,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 09:30:59,801 INFO L479 AbstractCegarLoop]: Abstraction has 7859 states and 12181 transitions. [2020-10-14 09:30:59,801 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 09:30:59,801 INFO L276 IsEmpty]: Start isEmpty. Operand 7859 states and 12181 transitions. [2020-10-14 09:30:59,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2020-10-14 09:30:59,820 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 09:30:59,821 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 09:30:59,821 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 09:30:59,821 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 09:30:59,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 09:30:59,822 INFO L82 PathProgramCache]: Analyzing trace with hash -786000059, now seen corresponding path program 1 times [2020-10-14 09:30:59,822 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 09:30:59,826 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [933665619] [2020-10-14 09:30:59,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 09:30:59,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:31:00,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:00,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:00,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:00,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:00,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:00,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:01,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:01,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:01,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:01,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:01,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:01,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:01,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:02,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:02,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:04,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:31:04,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 318 [2020-10-14 09:31:04,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-14 09:31:04,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 09:31:04,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:31:04,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:31:04,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 09:31:04,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 09:31:04,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-10-14 09:31:04,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 09:31:05,643 WARN L193 SmtUtils]: Spent 503.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-14 09:31:05,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 09:31:05,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:31:05,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:05,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:31:05,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 09:31:05,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 09:31:05,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 09:31:05,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:31:05,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:31:05,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 09:31:05,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 09:31:05,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 09:31:05,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 09:31:05,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 09:31:05,875 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [933665619] [2020-10-14 09:31:05,876 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 09:31:05,876 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 09:31:05,876 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795796716] [2020-10-14 09:31:05,877 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 09:31:05,877 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 09:31:05,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 09:31:05,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 09:31:05,878 INFO L87 Difference]: Start difference. First operand 7859 states and 12181 transitions. Second operand 5 states. [2020-10-14 09:31:15,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 09:31:15,555 INFO L93 Difference]: Finished difference Result 23250 states and 36000 transitions. [2020-10-14 09:31:15,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 09:31:15,555 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 312 [2020-10-14 09:31:15,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 09:31:15,613 INFO L225 Difference]: With dead ends: 23250 [2020-10-14 09:31:15,613 INFO L226 Difference]: Without dead ends: 15406 [2020-10-14 09:31:15,630 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 09:31:15,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15406 states. [2020-10-14 09:31:16,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15406 to 15195. [2020-10-14 09:31:16,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15195 states. [2020-10-14 09:31:16,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15195 states to 15195 states and 23460 transitions. [2020-10-14 09:31:16,098 INFO L78 Accepts]: Start accepts. Automaton has 15195 states and 23460 transitions. Word has length 312 [2020-10-14 09:31:16,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 09:31:16,099 INFO L479 AbstractCegarLoop]: Abstraction has 15195 states and 23460 transitions. [2020-10-14 09:31:16,099 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 09:31:16,099 INFO L276 IsEmpty]: Start isEmpty. Operand 15195 states and 23460 transitions. [2020-10-14 09:31:16,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2020-10-14 09:31:16,128 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 09:31:16,129 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 09:31:16,129 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 09:31:16,129 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 09:31:16,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 09:31:16,130 INFO L82 PathProgramCache]: Analyzing trace with hash 57259337, now seen corresponding path program 1 times [2020-10-14 09:31:16,130 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 09:31:16,130 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [750310447] [2020-10-14 09:31:16,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 09:31:16,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:31:16,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:16,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:16,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:16,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:16,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:16,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:16,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:16,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:16,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:16,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:17,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:17,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:17,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:17,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:19,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:21,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:31:21,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 320 [2020-10-14 09:31:21,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-14 09:31:21,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-14 09:31:21,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:31:21,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:31:21,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 09:31:21,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 09:31:21,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-14 09:31:21,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 09:31:21,771 WARN L193 SmtUtils]: Spent 473.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-14 09:31:21,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 09:31:21,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:31:21,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:21,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:31:21,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 09:31:21,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 09:31:21,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 09:31:21,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:31:21,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:31:21,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 09:31:21,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 09:31:21,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 09:31:21,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 09:31:21,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 09:31:21,906 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [750310447] [2020-10-14 09:31:21,906 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 09:31:21,906 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 09:31:21,906 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669666814] [2020-10-14 09:31:21,907 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 09:31:21,907 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 09:31:21,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 09:31:21,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 09:31:21,908 INFO L87 Difference]: Start difference. First operand 15195 states and 23460 transitions. Second operand 4 states. [2020-10-14 09:31:32,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 09:31:32,301 INFO L93 Difference]: Finished difference Result 44846 states and 69136 transitions. [2020-10-14 09:31:32,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 09:31:32,302 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 314 [2020-10-14 09:31:32,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 09:31:32,367 INFO L225 Difference]: With dead ends: 44846 [2020-10-14 09:31:32,367 INFO L226 Difference]: Without dead ends: 29780 [2020-10-14 09:31:32,400 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 09:31:32,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29780 states. [2020-10-14 09:31:34,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29780 to 29569. [2020-10-14 09:31:34,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29569 states. [2020-10-14 09:31:34,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29569 states to 29569 states and 45421 transitions. [2020-10-14 09:31:34,459 INFO L78 Accepts]: Start accepts. Automaton has 29569 states and 45421 transitions. Word has length 314 [2020-10-14 09:31:34,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 09:31:34,459 INFO L479 AbstractCegarLoop]: Abstraction has 29569 states and 45421 transitions. [2020-10-14 09:31:34,460 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 09:31:34,460 INFO L276 IsEmpty]: Start isEmpty. Operand 29569 states and 45421 transitions. [2020-10-14 09:31:34,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2020-10-14 09:31:34,508 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 09:31:34,508 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 09:31:34,508 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 09:31:34,509 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 09:31:34,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 09:31:34,509 INFO L82 PathProgramCache]: Analyzing trace with hash 1763270734, now seen corresponding path program 1 times [2020-10-14 09:31:34,509 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 09:31:34,510 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [466507616] [2020-10-14 09:31:34,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 09:31:34,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:31:34,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:34,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:34,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:34,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:34,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:34,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:35,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:35,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:35,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:35,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:35,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:35,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:35,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:35,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:35,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:39,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:39,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:31:39,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 320 [2020-10-14 09:31:39,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-14 09:31:39,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-14 09:31:39,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:31:39,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:31:39,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 09:31:39,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 09:31:39,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 09:31:39,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 09:31:40,109 WARN L193 SmtUtils]: Spent 479.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-14 09:31:40,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 09:31:40,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:31:40,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:40,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:31:40,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 09:31:40,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 09:31:40,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 09:31:40,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:31:40,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:31:40,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 09:31:40,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 09:31:40,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 09:31:40,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 09:31:40,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 09:31:40,191 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [466507616] [2020-10-14 09:31:40,191 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 09:31:40,191 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 09:31:40,191 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291380908] [2020-10-14 09:31:40,192 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 09:31:40,192 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 09:31:40,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 09:31:40,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 09:31:40,193 INFO L87 Difference]: Start difference. First operand 29569 states and 45421 transitions. Second operand 4 states. [2020-10-14 09:31:51,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 09:31:51,489 INFO L93 Difference]: Finished difference Result 88630 states and 136133 transitions. [2020-10-14 09:31:51,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 09:31:51,490 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 314 [2020-10-14 09:31:51,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 09:31:51,619 INFO L225 Difference]: With dead ends: 88630 [2020-10-14 09:31:51,620 INFO L226 Difference]: Without dead ends: 59100 [2020-10-14 09:31:51,687 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 09:31:51,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59100 states. [2020-10-14 09:31:52,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59100 to 29583. [2020-10-14 09:31:52,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29583 states. [2020-10-14 09:31:52,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29583 states to 29583 states and 45438 transitions. [2020-10-14 09:31:52,994 INFO L78 Accepts]: Start accepts. Automaton has 29583 states and 45438 transitions. Word has length 314 [2020-10-14 09:31:52,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 09:31:52,994 INFO L479 AbstractCegarLoop]: Abstraction has 29583 states and 45438 transitions. [2020-10-14 09:31:52,994 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 09:31:52,994 INFO L276 IsEmpty]: Start isEmpty. Operand 29583 states and 45438 transitions. [2020-10-14 09:31:53,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2020-10-14 09:31:53,044 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 09:31:53,044 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 09:31:53,045 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 09:31:53,045 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 09:31:53,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 09:31:53,045 INFO L82 PathProgramCache]: Analyzing trace with hash 1624277837, now seen corresponding path program 1 times [2020-10-14 09:31:53,045 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 09:31:53,046 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [996418545] [2020-10-14 09:31:53,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 09:31:53,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:31:53,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:53,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:53,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:53,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:53,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:53,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:53,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:53,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:53,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:53,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:53,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:53,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:54,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:54,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:54,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:58,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:31:58,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 321 [2020-10-14 09:31:58,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-14 09:31:58,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-14 09:31:58,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:31:58,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:31:58,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 09:31:58,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 09:31:58,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 181 [2020-10-14 09:31:58,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 09:31:58,713 WARN L193 SmtUtils]: Spent 506.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-14 09:31:58,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 09:31:58,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:31:58,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:31:58,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:31:58,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 09:31:58,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 09:31:58,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 09:31:58,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:31:58,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:31:58,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 09:31:58,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 09:31:58,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 09:31:58,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 09:31:58,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 09:31:58,851 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [996418545] [2020-10-14 09:31:58,851 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 09:31:58,852 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 09:31:58,852 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912348337] [2020-10-14 09:31:58,853 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 09:31:58,853 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 09:31:58,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 09:31:58,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 09:31:58,853 INFO L87 Difference]: Start difference. First operand 29583 states and 45438 transitions. Second operand 4 states. [2020-10-14 09:32:10,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 09:32:10,747 INFO L93 Difference]: Finished difference Result 83941 states and 128696 transitions. [2020-10-14 09:32:10,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 09:32:10,748 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 315 [2020-10-14 09:32:10,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 09:32:10,855 INFO L225 Difference]: With dead ends: 83941 [2020-10-14 09:32:10,855 INFO L226 Difference]: Without dead ends: 54580 [2020-10-14 09:32:10,897 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 09:32:10,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54580 states. [2020-10-14 09:32:12,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54580 to 54369. [2020-10-14 09:32:12,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54369 states. [2020-10-14 09:32:12,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54369 states to 54369 states and 82955 transitions. [2020-10-14 09:32:12,317 INFO L78 Accepts]: Start accepts. Automaton has 54369 states and 82955 transitions. Word has length 315 [2020-10-14 09:32:12,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 09:32:12,317 INFO L479 AbstractCegarLoop]: Abstraction has 54369 states and 82955 transitions. [2020-10-14 09:32:12,318 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 09:32:12,318 INFO L276 IsEmpty]: Start isEmpty. Operand 54369 states and 82955 transitions. [2020-10-14 09:32:12,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2020-10-14 09:32:12,356 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 09:32:12,357 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 09:32:12,357 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 09:32:12,357 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 09:32:12,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 09:32:12,358 INFO L82 PathProgramCache]: Analyzing trace with hash 692573610, now seen corresponding path program 1 times [2020-10-14 09:32:12,358 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 09:32:12,358 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1692526206] [2020-10-14 09:32:12,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 09:32:12,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:32:12,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:32:12,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:32:12,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:32:12,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:32:12,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:32:13,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:32:13,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:32:13,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:32:13,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:32:13,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:32:13,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:32:13,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:32:13,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:32:14,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:32:14,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:32:14,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:32:16,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:32:16,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:32:17,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:32:17,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 321 [2020-10-14 09:32:17,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-10-14 09:32:17,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-14 09:32:17,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:32:17,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:32:17,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 09:32:17,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 09:32:17,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 09:32:17,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 09:32:17,975 WARN L193 SmtUtils]: Spent 516.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-14 09:32:17,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 09:32:17,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:32:17,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:32:17,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:32:17,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 09:32:17,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 09:32:17,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 09:32:17,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:32:17,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:32:17,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 09:32:17,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 09:32:17,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 09:32:17,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 09:32:18,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 09:32:18,071 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1692526206] [2020-10-14 09:32:18,071 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 09:32:18,071 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 09:32:18,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832528594] [2020-10-14 09:32:18,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 09:32:18,072 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 09:32:18,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 09:32:18,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 09:32:18,073 INFO L87 Difference]: Start difference. First operand 54369 states and 82955 transitions. Second operand 4 states. [2020-10-14 09:32:31,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 09:32:31,286 INFO L93 Difference]: Finished difference Result 162980 states and 248667 transitions. [2020-10-14 09:32:31,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 09:32:31,287 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 315 [2020-10-14 09:32:31,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 09:32:31,442 INFO L225 Difference]: With dead ends: 162980 [2020-10-14 09:32:31,443 INFO L226 Difference]: Without dead ends: 108680 [2020-10-14 09:32:31,516 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 09:32:31,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108680 states. [2020-10-14 09:32:33,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108680 to 54400. [2020-10-14 09:32:33,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54400 states. [2020-10-14 09:32:33,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54400 states to 54400 states and 82998 transitions. [2020-10-14 09:32:33,756 INFO L78 Accepts]: Start accepts. Automaton has 54400 states and 82998 transitions. Word has length 315 [2020-10-14 09:32:33,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 09:32:33,757 INFO L479 AbstractCegarLoop]: Abstraction has 54400 states and 82998 transitions. [2020-10-14 09:32:33,757 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 09:32:33,757 INFO L276 IsEmpty]: Start isEmpty. Operand 54400 states and 82998 transitions. [2020-10-14 09:32:33,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2020-10-14 09:32:33,808 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 09:32:33,808 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 09:32:33,808 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 09:32:33,809 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 09:32:33,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 09:32:33,809 INFO L82 PathProgramCache]: Analyzing trace with hash 1428967745, now seen corresponding path program 1 times [2020-10-14 09:32:33,809 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 09:32:33,810 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [524775937] [2020-10-14 09:32:33,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 09:32:33,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:32:33,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:32:34,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:32:34,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:32:34,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:32:34,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:32:34,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:32:34,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:32:34,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:32:34,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:32:34,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:32:34,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:32:34,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:32:34,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:32:35,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:32:35,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:32:35,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:32:40,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:32:40,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 322 [2020-10-14 09:32:40,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-14 09:32:40,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6264 [2020-10-14 09:32:40,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:32:40,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:32:40,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 09:32:40,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 09:32:40,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 148 [2020-10-14 09:32:40,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 09:32:40,794 WARN L193 SmtUtils]: Spent 496.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-14 09:32:40,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 09:32:40,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:32:40,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:32:40,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:32:40,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 09:32:40,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 09:32:40,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 09:32:40,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:32:40,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:32:40,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 09:32:40,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 09:32:40,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 09:32:40,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 09:32:40,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 09:32:40,927 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [524775937] [2020-10-14 09:32:40,927 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 09:32:40,927 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 09:32:40,928 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736388652] [2020-10-14 09:32:40,928 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 09:32:40,928 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 09:32:40,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 09:32:40,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 09:32:40,929 INFO L87 Difference]: Start difference. First operand 54400 states and 82998 transitions. Second operand 5 states. [2020-10-14 09:32:53,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 09:32:53,202 INFO L93 Difference]: Finished difference Result 160600 states and 244639 transitions. [2020-10-14 09:32:53,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 09:32:53,203 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 316 [2020-10-14 09:32:53,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 09:32:53,313 INFO L225 Difference]: With dead ends: 160600 [2020-10-14 09:32:53,314 INFO L226 Difference]: Without dead ends: 106285 [2020-10-14 09:32:53,363 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 09:32:53,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106285 states. [2020-10-14 09:32:57,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106285 to 106170. [2020-10-14 09:32:57,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106170 states. [2020-10-14 09:32:57,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106170 states to 106170 states and 160859 transitions. [2020-10-14 09:32:57,319 INFO L78 Accepts]: Start accepts. Automaton has 106170 states and 160859 transitions. Word has length 316 [2020-10-14 09:32:57,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 09:32:57,319 INFO L479 AbstractCegarLoop]: Abstraction has 106170 states and 160859 transitions. [2020-10-14 09:32:57,319 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 09:32:57,319 INFO L276 IsEmpty]: Start isEmpty. Operand 106170 states and 160859 transitions. [2020-10-14 09:32:57,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2020-10-14 09:32:57,385 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 09:32:57,386 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 09:32:57,386 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 09:32:57,386 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 09:32:57,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 09:32:57,387 INFO L82 PathProgramCache]: Analyzing trace with hash -1056880166, now seen corresponding path program 1 times [2020-10-14 09:32:57,387 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 09:32:57,387 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1319587199] [2020-10-14 09:32:57,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 09:32:57,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:32:57,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:32:57,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:32:57,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:32:57,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:32:57,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:32:57,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:32:57,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:32:58,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:32:58,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:32:58,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:32:58,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:32:58,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:32:58,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:32:58,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:32:58,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:32:58,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:32:58,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:02,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:33:02,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 323 [2020-10-14 09:33:02,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-14 09:33:02,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-14 09:33:02,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:33:02,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:33:02,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 09:33:02,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 09:33:02,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 09:33:02,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 09:33:03,004 WARN L193 SmtUtils]: Spent 502.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-14 09:33:03,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 09:33:03,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:33:03,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:03,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:33:03,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 09:33:03,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 09:33:03,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 09:33:03,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:33:03,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:33:03,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 09:33:03,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 09:33:03,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 09:33:03,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 09:33:03,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 09:33:03,079 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1319587199] [2020-10-14 09:33:03,079 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 09:33:03,079 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 09:33:03,079 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949419234] [2020-10-14 09:33:03,080 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 09:33:03,080 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 09:33:03,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 09:33:03,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 09:33:03,081 INFO L87 Difference]: Start difference. First operand 106170 states and 160859 transitions. Second operand 4 states. [2020-10-14 09:33:17,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 09:33:17,218 INFO L93 Difference]: Finished difference Result 318021 states and 481764 transitions. [2020-10-14 09:33:17,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 09:33:17,219 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 317 [2020-10-14 09:33:17,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 09:33:17,448 INFO L225 Difference]: With dead ends: 318021 [2020-10-14 09:33:17,449 INFO L226 Difference]: Without dead ends: 211904 [2020-10-14 09:33:17,518 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 09:33:17,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211904 states. [2020-10-14 09:33:21,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211904 to 106131. [2020-10-14 09:33:21,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106131 states. [2020-10-14 09:33:22,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106131 states to 106131 states and 160789 transitions. [2020-10-14 09:33:22,028 INFO L78 Accepts]: Start accepts. Automaton has 106131 states and 160789 transitions. Word has length 317 [2020-10-14 09:33:22,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 09:33:22,029 INFO L479 AbstractCegarLoop]: Abstraction has 106131 states and 160789 transitions. [2020-10-14 09:33:22,029 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 09:33:22,029 INFO L276 IsEmpty]: Start isEmpty. Operand 106131 states and 160789 transitions. [2020-10-14 09:33:22,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2020-10-14 09:33:22,092 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 09:33:22,093 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 09:33:22,093 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 09:33:22,093 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 09:33:22,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 09:33:22,093 INFO L82 PathProgramCache]: Analyzing trace with hash 2040122877, now seen corresponding path program 1 times [2020-10-14 09:33:22,093 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 09:33:22,094 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1197315680] [2020-10-14 09:33:22,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 09:33:22,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:33:22,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:22,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:22,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:22,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:23,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:23,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:23,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:23,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:23,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:23,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:23,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:23,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:23,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:23,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:23,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:23,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:23,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:27,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:33:27,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 324 [2020-10-14 09:33:27,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-14 09:33:27,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5479 [2020-10-14 09:33:27,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:33:27,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:33:27,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 09:33:27,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-14 09:33:27,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 09:33:27,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 09:33:28,235 WARN L193 SmtUtils]: Spent 530.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-14 09:33:28,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 09:33:28,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:33:28,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:28,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:33:28,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 09:33:28,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 09:33:28,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 09:33:28,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:33:28,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:33:28,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 09:33:28,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 09:33:28,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 09:33:28,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 09:33:28,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 09:33:28,347 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1197315680] [2020-10-14 09:33:28,348 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 09:33:28,348 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 09:33:28,348 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468244526] [2020-10-14 09:33:28,348 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 09:33:28,349 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 09:33:28,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 09:33:28,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 09:33:28,349 INFO L87 Difference]: Start difference. First operand 106131 states and 160789 transitions. Second operand 4 states.