/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 19:18:39,904 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 19:18:39,907 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 19:18:39,930 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 19:18:39,931 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 19:18:39,932 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 19:18:39,933 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 19:18:39,935 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 19:18:39,937 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 19:18:39,938 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 19:18:39,939 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 19:18:39,940 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 19:18:39,940 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 19:18:39,941 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 19:18:39,942 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 19:18:39,944 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 19:18:39,944 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 19:18:39,945 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 19:18:39,947 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 19:18:39,949 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 19:18:39,950 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 19:18:39,954 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 19:18:39,956 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 19:18:39,956 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 19:18:39,963 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 19:18:39,964 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 19:18:39,964 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 19:18:39,965 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 19:18:39,965 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 19:18:39,966 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 19:18:39,966 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 19:18:39,967 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 19:18:39,968 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 19:18:39,969 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 19:18:39,970 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 19:18:39,970 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 19:18:39,970 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 19:18:39,971 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 19:18:39,971 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 19:18:39,972 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 19:18:39,972 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 19:18:39,973 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-12 19:18:39,996 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 19:18:39,996 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 19:18:39,997 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 19:18:39,997 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 19:18:39,998 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 19:18:39,998 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 19:18:39,998 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 19:18:39,998 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 19:18:39,998 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 19:18:39,999 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 19:18:39,999 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 19:18:39,999 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 19:18:39,999 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 19:18:39,999 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 19:18:40,000 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 19:18:40,000 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 19:18:40,000 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 19:18:40,000 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 19:18:40,000 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 19:18:40,001 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 19:18:40,001 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 19:18:40,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 19:18:40,001 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 19:18:40,001 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 19:18:40,002 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 19:18:40,002 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 19:18:40,002 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 19:18:40,002 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 19:18:40,002 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 19:18:40,002 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 19:18:40,297 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 19:18:40,306 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 19:18:40,312 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 19:18:40,314 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 19:18:40,315 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 19:18:40,316 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-12 19:18:40,396 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1eb5c4a94/68e8a4120fd34b1d96aab6e46788fa65/FLAG195ef33f1 [2020-10-12 19:18:41,125 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 19:18:41,126 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-12 19:18:41,150 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1eb5c4a94/68e8a4120fd34b1d96aab6e46788fa65/FLAG195ef33f1 [2020-10-12 19:18:41,205 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1eb5c4a94/68e8a4120fd34b1d96aab6e46788fa65 [2020-10-12 19:18:41,215 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 19:18:41,217 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 19:18:41,218 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 19:18:41,218 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 19:18:41,222 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 19:18:41,223 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:18:41" (1/1) ... [2020-10-12 19:18:41,226 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68c88769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:18:41, skipping insertion in model container [2020-10-12 19:18:41,226 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:18:41" (1/1) ... [2020-10-12 19:18:41,234 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 19:18:41,362 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 19:18:42,703 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 19:18:42,720 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 19:18:43,611 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 19:18:43,643 INFO L208 MainTranslator]: Completed translation [2020-10-12 19:18:43,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:18:43 WrapperNode [2020-10-12 19:18:43,645 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 19:18:43,646 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 19:18:43,646 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 19:18:43,647 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 19:18:43,662 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:18:43" (1/1) ... [2020-10-12 19:18:43,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:18:43" (1/1) ... [2020-10-12 19:18:43,714 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:18:43" (1/1) ... [2020-10-12 19:18:43,715 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:18:43" (1/1) ... [2020-10-12 19:18:43,781 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:18:43" (1/1) ... [2020-10-12 19:18:43,816 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:18:43" (1/1) ... [2020-10-12 19:18:43,835 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:18:43" (1/1) ... [2020-10-12 19:18:43,861 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 19:18:43,861 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 19:18:43,862 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 19:18:43,862 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 19:18:43,863 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:18:43" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 19:18:43,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 19:18:43,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 19:18:43,944 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-12 19:18:43,944 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 19:18:43,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 19:18:43,945 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-12 19:18:43,946 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-12 19:18:43,947 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-12 19:18:43,947 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-12 19:18:43,947 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 19:18:43,947 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-12 19:18:43,947 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-12 19:18:43,947 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-12 19:18:43,948 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-12 19:18:43,948 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-12 19:18:43,949 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-12 19:18:43,949 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-12 19:18:43,949 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-12 19:18:43,950 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-12 19:18:43,950 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 19:18:43,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 19:18:43,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 19:18:47,221 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 19:18:47,222 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-12 19:18:47,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:18:47 BoogieIcfgContainer [2020-10-12 19:18:47,233 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 19:18:47,235 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 19:18:47,235 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 19:18:47,238 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 19:18:47,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 07:18:41" (1/3) ... [2020-10-12 19:18:47,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f450fa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:18:47, skipping insertion in model container [2020-10-12 19:18:47,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:18:43" (2/3) ... [2020-10-12 19:18:47,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f450fa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:18:47, skipping insertion in model container [2020-10-12 19:18:47,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:18:47" (3/3) ... [2020-10-12 19:18:47,242 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-12 19:18:47,253 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 19:18:47,262 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2020-10-12 19:18:47,277 INFO L251 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2020-10-12 19:18:47,306 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 19:18:47,306 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 19:18:47,307 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 19:18:47,307 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 19:18:47,307 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 19:18:47,307 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 19:18:47,307 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 19:18:47,307 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 19:18:47,343 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states. [2020-10-12 19:18:47,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2020-10-12 19:18:47,370 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:18:47,372 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] [2020-10-12 19:18:47,373 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]=== [2020-10-12 19:18:47,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:18:47,380 INFO L82 PathProgramCache]: Analyzing trace with hash -1261911331, now seen corresponding path program 1 times [2020-10-12 19:18:47,389 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:18:47,389 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [132496169] [2020-10-12 19:18:47,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:18:48,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:18:48,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:18:49,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:18:49,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:18:50,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:18:50,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:18:50,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:18:50,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:18:51,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:18:51,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:18:51,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:18:51,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:18:51,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:18:51,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:18:53,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:18:53,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 314 [2020-10-12 19:18:53,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-12 19:18:53,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-10-12 19:18:53,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:18:53,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 19:18:53,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:18:53,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-12 19:18:53,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 19:18:54,185 WARN L193 SmtUtils]: Spent 637.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-12 19:18:54,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:18:54,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:18:54,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:18:54,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:18:54,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:18:54,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:18:54,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 19:18:54,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:18:54,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:18:54,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:18:54,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:18:54,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:18:54,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:18:54,448 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [132496169] [2020-10-12 19:18:54,450 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:18:54,451 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 19:18:54,451 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433446183] [2020-10-12 19:18:54,457 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 19:18:54,457 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:18:54,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 19:18:54,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 19:18:54,474 INFO L87 Difference]: Start difference. First operand 934 states. Second operand 5 states. [2020-10-12 19:19:06,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:19:06,082 INFO L93 Difference]: Finished difference Result 2719 states and 4906 transitions. [2020-10-12 19:19:06,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 19:19:06,086 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 308 [2020-10-12 19:19:06,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:19:06,136 INFO L225 Difference]: With dead ends: 2719 [2020-10-12 19:19:06,136 INFO L226 Difference]: Without dead ends: 1822 [2020-10-12 19:19:06,150 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-12 19:19:06,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1822 states. [2020-10-12 19:19:06,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1822 to 1726. [2020-10-12 19:19:06,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1726 states. [2020-10-12 19:19:06,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1726 states to 1726 states and 2622 transitions. [2020-10-12 19:19:06,352 INFO L78 Accepts]: Start accepts. Automaton has 1726 states and 2622 transitions. Word has length 308 [2020-10-12 19:19:06,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:19:06,355 INFO L479 AbstractCegarLoop]: Abstraction has 1726 states and 2622 transitions. [2020-10-12 19:19:06,356 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 19:19:06,356 INFO L276 IsEmpty]: Start isEmpty. Operand 1726 states and 2622 transitions. [2020-10-12 19:19:06,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2020-10-12 19:19:06,368 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:19:06,369 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] [2020-10-12 19:19:06,369 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 19:19:06,370 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]=== [2020-10-12 19:19:06,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:19:06,370 INFO L82 PathProgramCache]: Analyzing trace with hash -1184431878, now seen corresponding path program 1 times [2020-10-12 19:19:06,371 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:19:06,375 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1488102948] [2020-10-12 19:19:06,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:19:06,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:19:06,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:19:07,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:19:07,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:19:07,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:19:07,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:19:07,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:19:08,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:19:08,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:19:08,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:19:08,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:19:09,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:19:09,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:19:09,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:19:10,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:19:11,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:19:11,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 316 [2020-10-12 19:19:11,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-12 19:19:11,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-12 19:19:11,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:19:11,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 19:19:11,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:19:11,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 169 [2020-10-12 19:19:11,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:19:13,009 WARN L193 SmtUtils]: Spent 989.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-12 19:19:13,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:19:13,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:19:13,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:19:13,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:19:13,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:19:13,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:19:13,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 19:19:13,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:19:13,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:19:13,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:19:13,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:19:13,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:19:13,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:19:13,284 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1488102948] [2020-10-12 19:19:13,284 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:19:13,284 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 19:19:13,285 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908327653] [2020-10-12 19:19:13,288 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 19:19:13,289 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:19:13,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 19:19:13,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 19:19:13,290 INFO L87 Difference]: Start difference. First operand 1726 states and 2622 transitions. Second operand 5 states. [2020-10-12 19:19:24,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:19:24,607 INFO L93 Difference]: Finished difference Result 5093 states and 7728 transitions. [2020-10-12 19:19:24,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 19:19:24,609 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 310 [2020-10-12 19:19:24,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:19:24,631 INFO L225 Difference]: With dead ends: 5093 [2020-10-12 19:19:24,631 INFO L226 Difference]: Without dead ends: 3392 [2020-10-12 19:19:24,637 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-12 19:19:24,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3392 states. [2020-10-12 19:19:24,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3392 to 3296. [2020-10-12 19:19:24,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3296 states. [2020-10-12 19:19:24,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3296 states to 3296 states and 5000 transitions. [2020-10-12 19:19:24,796 INFO L78 Accepts]: Start accepts. Automaton has 3296 states and 5000 transitions. Word has length 310 [2020-10-12 19:19:24,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:19:24,799 INFO L479 AbstractCegarLoop]: Abstraction has 3296 states and 5000 transitions. [2020-10-12 19:19:24,799 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 19:19:24,799 INFO L276 IsEmpty]: Start isEmpty. Operand 3296 states and 5000 transitions. [2020-10-12 19:19:24,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2020-10-12 19:19:24,814 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:19:24,815 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] [2020-10-12 19:19:24,815 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 19:19:24,815 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]=== [2020-10-12 19:19:24,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:19:24,816 INFO L82 PathProgramCache]: Analyzing trace with hash 1103248374, now seen corresponding path program 1 times [2020-10-12 19:19:24,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:19:24,817 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1769396269] [2020-10-12 19:19:24,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:19:24,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:19:24,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:19:25,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:19:25,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:19:25,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:19:25,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:19:25,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:19:25,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:19:26,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:19:26,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:19:26,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:19:27,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:19:27,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:19:27,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:19:27,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:19:29,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:19:29,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 318 [2020-10-12 19:19:29,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-12 19:19:29,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-12 19:19:29,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:19:29,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 19:19:29,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:19:29,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-12 19:19:29,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:19:30,728 WARN L193 SmtUtils]: Spent 661.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-12 19:19:30,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:19:30,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:19:30,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:19:30,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:19:30,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:19:30,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:19:30,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 19:19:30,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:19:30,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:19:30,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:19:30,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:19:30,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:19:31,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:19:31,005 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1769396269] [2020-10-12 19:19:31,006 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:19:31,007 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 19:19:31,007 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921639120] [2020-10-12 19:19:31,009 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 19:19:31,009 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:19:31,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 19:19:31,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 19:19:31,011 INFO L87 Difference]: Start difference. First operand 3296 states and 5000 transitions. Second operand 5 states. [2020-10-12 19:19:40,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:19:40,361 INFO L93 Difference]: Finished difference Result 9533 states and 14393 transitions. [2020-10-12 19:19:40,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 19:19:40,362 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 312 [2020-10-12 19:19:40,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:19:40,394 INFO L225 Difference]: With dead ends: 9533 [2020-10-12 19:19:40,394 INFO L226 Difference]: Without dead ends: 6409 [2020-10-12 19:19:40,403 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-12 19:19:40,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6409 states. [2020-10-12 19:19:40,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6409 to 6313. [2020-10-12 19:19:40,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6313 states. [2020-10-12 19:19:40,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6313 states to 6313 states and 9515 transitions. [2020-10-12 19:19:40,720 INFO L78 Accepts]: Start accepts. Automaton has 6313 states and 9515 transitions. Word has length 312 [2020-10-12 19:19:40,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:19:40,722 INFO L479 AbstractCegarLoop]: Abstraction has 6313 states and 9515 transitions. [2020-10-12 19:19:40,722 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 19:19:40,722 INFO L276 IsEmpty]: Start isEmpty. Operand 6313 states and 9515 transitions. [2020-10-12 19:19:40,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2020-10-12 19:19:40,742 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:19:40,742 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] [2020-10-12 19:19:40,744 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 19:19:40,744 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]=== [2020-10-12 19:19:40,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:19:40,745 INFO L82 PathProgramCache]: Analyzing trace with hash 1088106895, now seen corresponding path program 1 times [2020-10-12 19:19:40,746 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:19:40,746 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1195303045] [2020-10-12 19:19:40,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:19:40,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:19:40,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:19:40,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:19:40,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:19:41,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:19:41,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:19:41,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:19:41,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:19:41,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:19:41,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:19:41,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:19:41,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:19:42,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:19:42,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:19:45,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:19:45,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 320 [2020-10-12 19:19:45,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-12 19:19:45,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-12 19:19:45,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:19:45,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 19:19:45,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:19:45,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-12 19:19:45,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:19:46,610 WARN L193 SmtUtils]: Spent 564.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-12 19:19:46,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:19:46,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:19:46,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:19:46,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:19:46,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:19:46,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:19:46,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 19:19:46,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:19:46,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:19:46,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:19:46,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:19:46,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:19:46,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:19:46,820 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1195303045] [2020-10-12 19:19:46,820 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:19:46,820 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 19:19:46,821 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293464467] [2020-10-12 19:19:46,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 19:19:46,822 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:19:46,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 19:19:46,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 19:19:46,822 INFO L87 Difference]: Start difference. First operand 6313 states and 9515 transitions. Second operand 5 states. [2020-10-12 19:19:56,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:19:56,607 INFO L93 Difference]: Finished difference Result 18271 states and 27382 transitions. [2020-10-12 19:19:56,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 19:19:56,608 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 314 [2020-10-12 19:19:56,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:19:56,659 INFO L225 Difference]: With dead ends: 18271 [2020-10-12 19:19:56,660 INFO L226 Difference]: Without dead ends: 12331 [2020-10-12 19:19:56,673 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-12 19:19:56,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12331 states. [2020-10-12 19:19:57,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12331 to 12235. [2020-10-12 19:19:57,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12235 states. [2020-10-12 19:19:57,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12235 states to 12235 states and 18323 transitions. [2020-10-12 19:19:57,257 INFO L78 Accepts]: Start accepts. Automaton has 12235 states and 18323 transitions. Word has length 314 [2020-10-12 19:19:57,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:19:57,258 INFO L479 AbstractCegarLoop]: Abstraction has 12235 states and 18323 transitions. [2020-10-12 19:19:57,258 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 19:19:57,258 INFO L276 IsEmpty]: Start isEmpty. Operand 12235 states and 18323 transitions. [2020-10-12 19:19:57,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2020-10-12 19:19:57,285 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:19:57,285 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] [2020-10-12 19:19:57,285 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 19:19:57,286 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]=== [2020-10-12 19:19:57,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:19:57,286 INFO L82 PathProgramCache]: Analyzing trace with hash 1988470648, now seen corresponding path program 1 times [2020-10-12 19:19:57,286 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:19:57,287 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1926633279] [2020-10-12 19:19:57,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:19:57,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:19:57,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:19:57,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:19:57,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:19:57,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:19:57,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:19:57,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:19:57,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:19:57,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:19:58,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:19:58,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:19:58,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:19:58,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:19:58,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:20:01,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:20:02,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:20:02,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:20:02,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 322 [2020-10-12 19:20:02,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-12 19:20:02,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-12 19:20:02,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:20:02,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 19:20:02,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:20:02,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-12 19:20:02,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:20:03,199 WARN L193 SmtUtils]: Spent 689.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-12 19:20:03,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:20:03,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:20:03,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:20:03,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:20:03,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:20:03,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:20:03,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 19:20:03,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:20:03,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:20:03,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:20:03,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:20:03,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:20:03,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:20:03,358 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1926633279] [2020-10-12 19:20:03,358 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:20:03,358 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 19:20:03,359 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616348344] [2020-10-12 19:20:03,359 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 19:20:03,359 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:20:03,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 19:20:03,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 19:20:03,360 INFO L87 Difference]: Start difference. First operand 12235 states and 18323 transitions. Second operand 5 states. [2020-10-12 19:20:14,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:20:14,721 INFO L93 Difference]: Finished difference Result 35492 states and 52921 transitions. [2020-10-12 19:20:14,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 19:20:14,722 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 316 [2020-10-12 19:20:14,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:20:14,784 INFO L225 Difference]: With dead ends: 35492 [2020-10-12 19:20:14,785 INFO L226 Difference]: Without dead ends: 24028 [2020-10-12 19:20:14,808 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-12 19:20:14,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24028 states. [2020-10-12 19:20:15,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24028 to 23938. [2020-10-12 19:20:15,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23938 states. [2020-10-12 19:20:16,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23938 states to 23938 states and 35600 transitions. [2020-10-12 19:20:16,831 INFO L78 Accepts]: Start accepts. Automaton has 23938 states and 35600 transitions. Word has length 316 [2020-10-12 19:20:16,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:20:16,831 INFO L479 AbstractCegarLoop]: Abstraction has 23938 states and 35600 transitions. [2020-10-12 19:20:16,831 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 19:20:16,831 INFO L276 IsEmpty]: Start isEmpty. Operand 23938 states and 35600 transitions. [2020-10-12 19:20:16,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2020-10-12 19:20:16,870 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:20:16,870 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] [2020-10-12 19:20:16,870 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 19:20:16,870 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]=== [2020-10-12 19:20:16,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:20:16,871 INFO L82 PathProgramCache]: Analyzing trace with hash -1365568792, now seen corresponding path program 1 times [2020-10-12 19:20:16,871 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:20:16,871 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [779377043] [2020-10-12 19:20:16,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:20:16,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:20:16,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:20:16,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:20:17,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:20:17,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:20:17,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:20:17,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:20:17,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:20:17,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:20:17,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:20:17,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:20:17,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:20:17,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:20:18,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:20:21,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:20:21,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 324 [2020-10-12 19:20:21,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-12 19:20:21,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-12 19:20:21,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:20:21,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 19:20:21,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-12 19:20:21,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-12 19:20:21,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:20:22,707 WARN L193 SmtUtils]: Spent 676.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-12 19:20:22,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:20:22,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:20:22,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:20:22,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:20:22,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:20:22,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:20:22,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 19:20:22,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:20:22,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:20:22,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:20:22,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:20:22,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:20:22,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:20:22,820 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [779377043] [2020-10-12 19:20:22,820 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:20:22,820 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 19:20:22,820 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765727213] [2020-10-12 19:20:22,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 19:20:22,821 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:20:22,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 19:20:22,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 19:20:22,822 INFO L87 Difference]: Start difference. First operand 23938 states and 35600 transitions. Second operand 5 states. [2020-10-12 19:20:32,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:20:32,389 INFO L93 Difference]: Finished difference Result 66940 states and 99070 transitions. [2020-10-12 19:20:32,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 19:20:32,390 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 318 [2020-10-12 19:20:32,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:20:32,480 INFO L225 Difference]: With dead ends: 66940 [2020-10-12 19:20:32,481 INFO L226 Difference]: Without dead ends: 44487 [2020-10-12 19:20:32,522 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-12 19:20:32,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44487 states. [2020-10-12 19:20:33,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44487 to 24982. [2020-10-12 19:20:33,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24982 states. [2020-10-12 19:20:33,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24982 states to 24982 states and 37240 transitions. [2020-10-12 19:20:33,796 INFO L78 Accepts]: Start accepts. Automaton has 24982 states and 37240 transitions. Word has length 318 [2020-10-12 19:20:33,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:20:33,797 INFO L479 AbstractCegarLoop]: Abstraction has 24982 states and 37240 transitions. [2020-10-12 19:20:33,797 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 19:20:33,797 INFO L276 IsEmpty]: Start isEmpty. Operand 24982 states and 37240 transitions. [2020-10-12 19:20:33,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2020-10-12 19:20:33,834 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:20:33,835 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, 1, 1] [2020-10-12 19:20:33,835 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 19:20:33,835 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]=== [2020-10-12 19:20:33,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:20:33,836 INFO L82 PathProgramCache]: Analyzing trace with hash -32099973, now seen corresponding path program 1 times [2020-10-12 19:20:33,836 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:20:33,836 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1651496614] [2020-10-12 19:20:33,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:20:33,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:20:33,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:20:33,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:20:33,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:20:34,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:20:34,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:20:34,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:20:34,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:20:34,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:20:34,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:20:34,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:20:34,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:20:34,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:20:34,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:20:34,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:20:38,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:20:38,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 326 [2020-10-12 19:20:38,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-12 19:20:38,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-12 19:20:38,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:20:38,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 19:20:38,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-12 19:20:38,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-12 19:20:38,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:20:39,632 WARN L193 SmtUtils]: Spent 613.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-12 19:20:39,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:20:39,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:20:39,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:20:39,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:20:39,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:20:39,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:20:39,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 19:20:39,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:20:39,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:20:39,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:20:39,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:20:39,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:20:39,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:20:39,771 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1651496614] [2020-10-12 19:20:39,772 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:20:39,772 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 19:20:39,772 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855531463] [2020-10-12 19:20:39,773 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 19:20:39,773 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:20:39,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 19:20:39,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 19:20:39,773 INFO L87 Difference]: Start difference. First operand 24982 states and 37240 transitions. Second operand 5 states. [2020-10-12 19:20:53,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:20:53,286 INFO L93 Difference]: Finished difference Result 71572 states and 106056 transitions. [2020-10-12 19:20:53,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 19:20:53,287 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 320 [2020-10-12 19:20:53,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:20:53,378 INFO L225 Difference]: With dead ends: 71572 [2020-10-12 19:20:53,378 INFO L226 Difference]: Without dead ends: 49695 [2020-10-12 19:20:53,424 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-12 19:20:53,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49695 states. [2020-10-12 19:20:55,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49695 to 28138. [2020-10-12 19:20:55,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28138 states. [2020-10-12 19:20:55,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28138 states to 28138 states and 42412 transitions. [2020-10-12 19:20:55,201 INFO L78 Accepts]: Start accepts. Automaton has 28138 states and 42412 transitions. Word has length 320 [2020-10-12 19:20:55,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:20:55,202 INFO L479 AbstractCegarLoop]: Abstraction has 28138 states and 42412 transitions. [2020-10-12 19:20:55,202 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 19:20:55,202 INFO L276 IsEmpty]: Start isEmpty. Operand 28138 states and 42412 transitions. [2020-10-12 19:20:55,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2020-10-12 19:20:55,233 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:20:55,233 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, 1, 1, 1] [2020-10-12 19:20:55,233 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 19:20:55,233 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]=== [2020-10-12 19:20:55,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:20:55,234 INFO L82 PathProgramCache]: Analyzing trace with hash -334481266, now seen corresponding path program 1 times [2020-10-12 19:20:55,234 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:20:55,234 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [846379474] [2020-10-12 19:20:55,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:20:55,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:20:55,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:20:55,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:20:55,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:20:55,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:20:55,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:20:55,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:20:55,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:20:55,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:20:55,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:20:55,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:20:55,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:20:55,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:20:55,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:20:57,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:20:57,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:21:00,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:21:00,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 327 [2020-10-12 19:21:00,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-12 19:21:00,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-12 19:21:00,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:21:00,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 19:21:00,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:21:00,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-12 19:21:00,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:21:01,040 WARN L193 SmtUtils]: Spent 625.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-12 19:21:01,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:21:01,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:21:01,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:21:01,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:21:01,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:21:01,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:21:01,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 19:21:01,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:21:01,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:21:01,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:21:01,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:21:01,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:21:01,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:21:01,174 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [846379474] [2020-10-12 19:21:01,174 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:21:01,174 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 19:21:01,174 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318925767] [2020-10-12 19:21:01,175 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 19:21:01,175 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:21:01,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 19:21:01,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 19:21:01,176 INFO L87 Difference]: Start difference. First operand 28138 states and 42412 transitions. Second operand 5 states. [2020-10-12 19:21:16,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:21:16,471 INFO L93 Difference]: Finished difference Result 80023 states and 119837 transitions. [2020-10-12 19:21:16,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 19:21:16,472 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 321 [2020-10-12 19:21:16,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:21:16,560 INFO L225 Difference]: With dead ends: 80023 [2020-10-12 19:21:16,560 INFO L226 Difference]: Without dead ends: 54610 [2020-10-12 19:21:16,595 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-12 19:21:16,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54610 states. [2020-10-12 19:21:19,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54610 to 54509. [2020-10-12 19:21:19,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54509 states. [2020-10-12 19:21:19,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54509 states to 54509 states and 81441 transitions. [2020-10-12 19:21:19,890 INFO L78 Accepts]: Start accepts. Automaton has 54509 states and 81441 transitions. Word has length 321 [2020-10-12 19:21:19,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:21:19,891 INFO L479 AbstractCegarLoop]: Abstraction has 54509 states and 81441 transitions. [2020-10-12 19:21:19,891 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 19:21:19,891 INFO L276 IsEmpty]: Start isEmpty. Operand 54509 states and 81441 transitions. [2020-10-12 19:21:19,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2020-10-12 19:21:19,940 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:21:19,940 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, 1, 1, 1, 1, 1] [2020-10-12 19:21:19,940 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 19:21:19,941 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]=== [2020-10-12 19:21:19,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:21:19,941 INFO L82 PathProgramCache]: Analyzing trace with hash -1942964493, now seen corresponding path program 1 times [2020-10-12 19:21:19,941 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:21:19,942 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [534858911] [2020-10-12 19:21:19,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:21:19,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:21:19,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:21:20,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:21:20,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:21:20,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:21:20,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:21:20,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:21:20,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:21:20,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:21:20,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:21:20,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:21:20,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:21:20,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:21:20,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:21:25,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:21:25,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 329 [2020-10-12 19:21:25,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-12 19:21:25,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-12 19:21:25,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:21:25,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 19:21:25,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:21:25,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-12 19:21:25,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:21:25,771 WARN L193 SmtUtils]: Spent 622.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-12 19:21:25,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:21:25,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:21:25,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:21:25,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:21:25,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:21:25,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:21:25,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 19:21:25,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:21:25,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:21:25,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:21:25,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:21:25,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:21:25,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:21:25,904 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [534858911] [2020-10-12 19:21:25,904 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:21:25,904 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 19:21:25,905 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138515293] [2020-10-12 19:21:25,905 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 19:21:25,906 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:21:25,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 19:21:25,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 19:21:25,906 INFO L87 Difference]: Start difference. First operand 54509 states and 81441 transitions. Second operand 5 states. [2020-10-12 19:21:44,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:21:44,275 INFO L93 Difference]: Finished difference Result 152902 states and 226624 transitions. [2020-10-12 19:21:44,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 19:21:44,276 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 323 [2020-10-12 19:21:44,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:21:44,438 INFO L225 Difference]: With dead ends: 152902 [2020-10-12 19:21:44,438 INFO L226 Difference]: Without dead ends: 105009 [2020-10-12 19:21:44,497 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-12 19:21:44,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105009 states. [2020-10-12 19:21:53,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105009 to 104947. [2020-10-12 19:21:53,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104947 states. [2020-10-12 19:21:53,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104947 states to 104947 states and 155092 transitions. [2020-10-12 19:21:53,330 INFO L78 Accepts]: Start accepts. Automaton has 104947 states and 155092 transitions. Word has length 323 [2020-10-12 19:21:53,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:21:53,330 INFO L479 AbstractCegarLoop]: Abstraction has 104947 states and 155092 transitions. [2020-10-12 19:21:53,330 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 19:21:53,330 INFO L276 IsEmpty]: Start isEmpty. Operand 104947 states and 155092 transitions. [2020-10-12 19:21:53,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2020-10-12 19:21:53,404 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:21:53,405 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:21:53,405 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 19:21:53,405 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]=== [2020-10-12 19:21:53,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:21:53,406 INFO L82 PathProgramCache]: Analyzing trace with hash 2099718162, now seen corresponding path program 1 times [2020-10-12 19:21:53,406 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:21:53,406 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2031223641] [2020-10-12 19:21:53,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:21:53,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:21:53,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:21:53,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:21:53,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:21:53,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:21:53,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:21:53,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:21:53,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:21:53,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:21:53,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:21:53,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:21:53,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:21:53,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:21:53,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:21:53,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:21:54,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:21:58,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:21:58,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 332 [2020-10-12 19:21:58,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-12 19:21:58,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-12 19:21:58,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:21:58,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 19:21:58,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 19:21:58,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-12 19:21:58,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:21:59,198 WARN L193 SmtUtils]: Spent 638.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-12 19:21:59,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:21:59,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:21:59,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:21:59,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:21:59,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:21:59,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:21:59,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 19:21:59,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:21:59,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:21:59,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:21:59,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:21:59,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:21:59,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:21:59,292 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2031223641] [2020-10-12 19:21:59,293 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:21:59,293 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 19:21:59,293 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862723491] [2020-10-12 19:21:59,293 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 19:21:59,294 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:21:59,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 19:21:59,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 19:21:59,294 INFO L87 Difference]: Start difference. First operand 104947 states and 155092 transitions. Second operand 5 states.