/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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=DEEPEST --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 language data_model -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 23:03:37,902 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 23:03:37,905 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 23:03:37,948 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 23:03:37,949 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 23:03:37,950 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 23:03:37,952 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 23:03:37,954 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 23:03:37,956 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 23:03:37,958 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 23:03:37,959 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 23:03:37,960 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 23:03:37,961 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 23:03:37,962 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 23:03:37,963 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 23:03:37,965 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 23:03:37,966 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 23:03:37,967 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 23:03:37,969 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 23:03:37,971 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 23:03:37,973 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 23:03:37,975 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 23:03:37,976 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 23:03:37,977 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 23:03:37,991 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 23:03:37,991 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 23:03:37,992 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 23:03:37,993 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 23:03:37,994 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 23:03:37,997 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 23:03:37,997 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 23:03:37,998 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 23:03:37,999 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 23:03:38,003 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 23:03:38,004 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 23:03:38,005 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 23:03:38,005 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 23:03:38,006 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 23:03:38,006 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 23:03:38,007 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 23:03:38,008 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 23:03:38,010 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 [2020-10-27 23:03:38,067 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 23:03:38,068 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 23:03:38,071 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 23:03:38,072 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 23:03:38,072 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 23:03:38,072 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 23:03:38,072 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 23:03:38,072 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 23:03:38,073 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 23:03:38,073 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 23:03:38,073 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 23:03:38,073 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 23:03:38,073 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 23:03:38,073 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 23:03:38,074 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 23:03:38,074 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 23:03:38,075 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 23:03:38,075 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 23:03:38,075 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 23:03:38,076 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 23:03:38,076 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 23:03:38,076 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 23:03:38,076 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 23:03:38,076 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 23:03:38,077 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 23:03:38,077 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 23:03:38,077 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 23:03:38,077 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 23:03:38,078 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 23:03:38,078 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 23:03:38,500 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 23:03:38,536 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 23:03:38,540 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 23:03:38,541 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 23:03:38,542 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 23:03:38,543 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c [2020-10-27 23:03:38,630 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1f4da6d93/38bfd09a926b411e890c5ced4aea6d47/FLAG472a0bc6b [2020-10-27 23:03:39,468 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 23:03:39,469 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c [2020-10-27 23:03:39,481 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1f4da6d93/38bfd09a926b411e890c5ced4aea6d47/FLAG472a0bc6b [2020-10-27 23:03:39,778 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1f4da6d93/38bfd09a926b411e890c5ced4aea6d47 [2020-10-27 23:03:39,783 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 23:03:39,794 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 23:03:39,798 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 23:03:39,798 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 23:03:39,802 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 23:03:39,804 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 11:03:39" (1/1) ... [2020-10-27 23:03:39,808 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fa82089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:03:39, skipping insertion in model container [2020-10-27 23:03:39,809 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 11:03:39" (1/1) ... [2020-10-27 23:03:39,818 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 23:03:39,888 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 23:03:40,144 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 23:03:40,157 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 23:03:40,237 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 23:03:40,259 INFO L208 MainTranslator]: Completed translation [2020-10-27 23:03:40,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:03:40 WrapperNode [2020-10-27 23:03:40,260 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 23:03:40,261 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 23:03:40,262 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 23:03:40,262 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 23:03:40,277 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:03:40" (1/1) ... [2020-10-27 23:03:40,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:03:40" (1/1) ... [2020-10-27 23:03:40,295 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:03:40" (1/1) ... [2020-10-27 23:03:40,295 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:03:40" (1/1) ... [2020-10-27 23:03:40,324 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:03:40" (1/1) ... [2020-10-27 23:03:40,346 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:03:40" (1/1) ... [2020-10-27 23:03:40,352 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:03:40" (1/1) ... [2020-10-27 23:03:40,357 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 23:03:40,358 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 23:03:40,363 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 23:03:40,363 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 23:03:40,364 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:03:40" (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 [2020-10-27 23:03:40,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 23:03:40,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 23:03:40,460 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 23:03:40,461 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 23:03:40,461 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-27 23:03:40,461 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-27 23:03:40,461 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-27 23:03:40,461 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-27 23:03:40,462 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-27 23:03:40,462 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-27 23:03:40,462 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 23:03:40,462 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-27 23:03:40,462 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 23:03:40,463 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 23:03:40,463 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 23:03:40,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 23:03:40,463 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-27 23:03:40,463 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-27 23:03:40,464 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-27 23:03:40,464 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-27 23:03:40,464 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 23:03:40,464 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-27 23:03:40,464 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-27 23:03:40,464 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-27 23:03:40,465 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-27 23:03:40,465 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-27 23:03:40,465 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-27 23:03:40,465 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-27 23:03:40,465 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-27 23:03:40,466 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 23:03:40,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 23:03:40,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 23:03:40,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 23:03:40,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 23:03:40,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 23:03:40,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 23:03:41,304 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 23:03:41,304 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 23:03:41,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 11:03:41 BoogieIcfgContainer [2020-10-27 23:03:41,307 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 23:03:41,309 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 23:03:41,309 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 23:03:41,313 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 23:03:41,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 11:03:39" (1/3) ... [2020-10-27 23:03:41,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c00290f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 11:03:41, skipping insertion in model container [2020-10-27 23:03:41,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:03:40" (2/3) ... [2020-10-27 23:03:41,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c00290f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 11:03:41, skipping insertion in model container [2020-10-27 23:03:41,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 11:03:41" (3/3) ... [2020-10-27 23:03:41,317 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c [2020-10-27 23:03:41,330 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 23:03:41,335 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 23:03:41,350 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 23:03:41,385 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 23:03:41,385 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 23:03:41,385 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 23:03:41,386 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 23:03:41,386 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 23:03:41,386 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 23:03:41,386 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 23:03:41,386 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 23:03:41,409 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states. [2020-10-27 23:03:41,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-27 23:03:41,420 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:03:41,421 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] [2020-10-27 23:03:41,422 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:03:41,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:03:41,429 INFO L82 PathProgramCache]: Analyzing trace with hash -24087465, now seen corresponding path program 1 times [2020-10-27 23:03:41,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:03:41,441 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1584200451] [2020-10-27 23:03:41,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:03:41,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:03:41,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:03:42,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:03:42,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-27 23:03:42,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:03:42,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 388 [2020-10-27 23:03:42,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:03:42,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:03:42,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-27 23:03:42,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:03:42,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 23:03:42,359 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-27 23:03:42,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:03:42,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:03:42,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:03:42,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:03:42,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:03:42,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:03:42,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 23:03:42,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:03:42,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:03:42,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:03:42,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:03:42,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:03:42,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:03:42,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:03:42,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:03:42,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:03:42,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:03:42,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:03:42,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:03:42,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:03:42,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:03:42,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:03:42,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:03:42,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:03:42,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 23:03:42,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:03:42,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:03:42,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:03:42,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:03:42,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:03:42,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:03:42,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:03:42,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:03:42,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 23:03:42,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:03:42,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:03:42,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 23:03:42,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:03:42,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:03:42,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:03:42,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:03:42,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:03:42,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 23:03:42,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:03:42,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:03:42,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:03:42,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:03:42,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:03:42,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 23:03:42,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:03:42,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:03:42,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:03:42,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:03:42,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:03:42,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 23:03:42,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:03:42,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:03:42,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:03:42,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:03:42,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:03:42,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 23:03:42,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:03:42,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:03:42,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:03:42,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:03:42,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:03:42,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:03:42,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:03:42,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:03:42,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:03:42,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:03:42,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:03:42,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 23:03:42,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:03:42,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:03:42,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:03:42,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:03:42,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:03:42,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:03:42,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:03:42,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:03:42,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:03:42,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:03:42,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:03:42,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 23:03:42,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:03:42,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:03:42,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:03:42,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:03:42,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:03:42,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:03:42,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:03:42,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:03:42,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:03:42,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:03:42,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:03:42,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:03:42,677 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1584200451] [2020-10-27 23:03:42,680 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:03:42,680 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 23:03:42,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292059900] [2020-10-27 23:03:42,686 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 23:03:42,687 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:03:42,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 23:03:42,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-27 23:03:42,704 INFO L87 Difference]: Start difference. First operand 139 states. Second operand 7 states. [2020-10-27 23:03:43,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:03:43,752 INFO L93 Difference]: Finished difference Result 236 states and 348 transitions. [2020-10-27 23:03:43,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 23:03:43,754 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 62 [2020-10-27 23:03:43,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:03:43,767 INFO L225 Difference]: With dead ends: 236 [2020-10-27 23:03:43,767 INFO L226 Difference]: Without dead ends: 136 [2020-10-27 23:03:43,771 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-27 23:03:43,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-27 23:03:43,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 131. [2020-10-27 23:03:43,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-10-27 23:03:43,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 195 transitions. [2020-10-27 23:03:43,838 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 195 transitions. Word has length 62 [2020-10-27 23:03:43,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:03:43,839 INFO L481 AbstractCegarLoop]: Abstraction has 131 states and 195 transitions. [2020-10-27 23:03:43,839 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 23:03:43,839 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 195 transitions. [2020-10-27 23:03:43,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-27 23:03:43,842 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:03:43,843 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] [2020-10-27 23:03:43,843 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 23:03:43,843 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:03:43,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:03:43,844 INFO L82 PathProgramCache]: Analyzing trace with hash -377175847, now seen corresponding path program 1 times [2020-10-27 23:03:43,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:03:43,845 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1379533283] [2020-10-27 23:03:43,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:03:43,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:03:43,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:03:44,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:03:44,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-27 23:03:44,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:03:44,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 668 [2020-10-27 23:03:44,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:03:44,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 23:03:44,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 23:03:44,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 23:03:44,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:03:44,879 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-27 23:03:44,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:03:44,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:03:44,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:03:44,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:03:44,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:03:44,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:03:44,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 23:03:44,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:03:44,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:03:44,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:03:44,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:03:44,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:03:44,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:03:44,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:03:44,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:03:44,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:03:44,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:03:44,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:03:44,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 23:03:44,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:03:44,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:03:44,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:03:44,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:03:44,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:03:44,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 23:03:44,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:03:45,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:03:45,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:03:45,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:03:45,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:03:45,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:03:45,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:03:45,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:03:45,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 23:03:45,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:03:45,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-27 23:03:45,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 23:03:45,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:03:45,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:03:45,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:03:45,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:03:45,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:03:45,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:03:45,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:03:45,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:03:45,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:03:45,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:03:45,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:03:45,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 23:03:45,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:03:45,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:03:45,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:03:45,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:03:45,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:03:45,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:03:45,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:03:45,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:03:45,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:03:45,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:03:45,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:03:45,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 23:03:45,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:03:45,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:03:45,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:03:45,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:03:45,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:03:45,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:03:45,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:03:45,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:03:45,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:03:45,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:03:45,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:03:45,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 23:03:45,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:03:45,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:03:45,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:03:45,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:03:45,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:03:45,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:03:45,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:03:45,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:03:45,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:03:45,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:03:45,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:03:45,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 23:03:45,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:03:45,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:03:45,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:03:45,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:03:45,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:03:45,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:03:45,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:03:45,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:03:45,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:03:45,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:03:45,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:03:45,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:03:45,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1379533283] [2020-10-27 23:03:45,219 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:03:45,220 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-27 23:03:45,220 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688511343] [2020-10-27 23:03:45,222 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 23:03:45,222 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:03:45,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 23:03:45,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-27 23:03:45,223 INFO L87 Difference]: Start difference. First operand 131 states and 195 transitions. Second operand 13 states. [2020-10-27 23:03:45,520 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-27 23:03:45,810 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-27 23:03:46,161 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-27 23:03:46,412 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-27 23:03:48,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:03:48,140 INFO L93 Difference]: Finished difference Result 231 states and 336 transitions. [2020-10-27 23:03:48,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 23:03:48,141 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 62 [2020-10-27 23:03:48,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:03:48,147 INFO L225 Difference]: With dead ends: 231 [2020-10-27 23:03:48,147 INFO L226 Difference]: Without dead ends: 136 [2020-10-27 23:03:48,151 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-10-27 23:03:48,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-27 23:03:48,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 131. [2020-10-27 23:03:48,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-10-27 23:03:48,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 171 transitions. [2020-10-27 23:03:48,201 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 171 transitions. Word has length 62 [2020-10-27 23:03:48,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:03:48,202 INFO L481 AbstractCegarLoop]: Abstraction has 131 states and 171 transitions. [2020-10-27 23:03:48,202 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 23:03:48,202 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 171 transitions. [2020-10-27 23:03:48,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-27 23:03:48,208 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:03:48,209 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] [2020-10-27 23:03:48,209 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 23:03:48,209 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:03:48,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:03:48,210 INFO L82 PathProgramCache]: Analyzing trace with hash 248466843, now seen corresponding path program 1 times [2020-10-27 23:03:48,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:03:48,210 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1632748343] [2020-10-27 23:03:48,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:03:48,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:03:48,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:03:48,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:03:48,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:03:48,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:03:53,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:03:53,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-27 23:03:53,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 23:03:53,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-27 23:03:53,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:03:53,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:03:53,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-27 23:03:53,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-27 23:03:53,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:03:53,525 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-27 23:03:53,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:03:53,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:03:53,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:03:53,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:03:53,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:03:53,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:03:53,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 23:03:53,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:03:53,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:03:53,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:03:53,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:03:53,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:03:53,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:03:53,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:03:53,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:03:53,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:03:53,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 23:03:53,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:03:53,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 23:03:53,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:03:53,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:03:53,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:03:53,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-27 23:03:53,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:03:53,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-27 23:03:53,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:03:53,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:03:53,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:03:53,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:03:53,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:03:53,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:03:53,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:03:53,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:03:53,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:03:53,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:03:53,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:03:53,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 23:03:53,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:03:53,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:03:53,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:03:53,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:03:53,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:03:53,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:03:53,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:03:53,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:03:53,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:03:53,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 23:03:53,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:03:53,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 23:03:53,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:03:53,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:03:53,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:03:53,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:03:53,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:03:53,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:03:53,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:03:53,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:03:53,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:03:53,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:03:53,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:03:53,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 23:03:53,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:03:53,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:03:53,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:03:53,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:03:53,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:03:53,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:03:53,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:03:53,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:03:53,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:03:53,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:03:53,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:03:53,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-27 23:03:53,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:03:53,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:03:53,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:03:53,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:03:53,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:03:53,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 23:03:53,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:03:53,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:03:53,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:03:53,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:03:53,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:03:53,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-27 23:03:53,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:03:53,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:03:53,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:03:53,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:03:53,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:03:53,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:03:53,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:03:53,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:03:53,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:03:53,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:03:53,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:03:53,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:03:53,823 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1632748343] [2020-10-27 23:03:53,823 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:03:53,823 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 23:03:53,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492300855] [2020-10-27 23:03:53,824 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 23:03:53,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:03:53,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 23:03:53,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-27 23:03:53,825 INFO L87 Difference]: Start difference. First operand 131 states and 171 transitions. Second operand 10 states. [2020-10-27 23:03:54,061 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-27 23:03:56,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:03:56,080 INFO L93 Difference]: Finished difference Result 306 states and 420 transitions. [2020-10-27 23:03:56,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-27 23:03:56,081 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 85 [2020-10-27 23:03:56,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:03:56,090 INFO L225 Difference]: With dead ends: 306 [2020-10-27 23:03:56,091 INFO L226 Difference]: Without dead ends: 217 [2020-10-27 23:03:56,093 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2020-10-27 23:03:56,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-10-27 23:03:56,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 205. [2020-10-27 23:03:56,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-10-27 23:03:56,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 278 transitions. [2020-10-27 23:03:56,156 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 278 transitions. Word has length 85 [2020-10-27 23:03:56,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:03:56,157 INFO L481 AbstractCegarLoop]: Abstraction has 205 states and 278 transitions. [2020-10-27 23:03:56,157 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 23:03:56,157 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 278 transitions. [2020-10-27 23:03:56,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-27 23:03:56,160 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:03:56,161 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] [2020-10-27 23:03:56,161 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 23:03:56,161 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:03:56,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:03:56,161 INFO L82 PathProgramCache]: Analyzing trace with hash 74575202, now seen corresponding path program 1 times [2020-10-27 23:03:56,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:03:56,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1710091715] [2020-10-27 23:03:56,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:03:56,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:03:56,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:03:56,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:03:56,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:03:58,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:03:58,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-27 23:03:58,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 23:03:58,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2792 [2020-10-27 23:03:58,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:03:58,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:03:58,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-27 23:03:58,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-27 23:03:58,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:03:59,207 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-27 23:03:59,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:03:59,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:03:59,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:03:59,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:03:59,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:03:59,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:03:59,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 23:03:59,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:03:59,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:03:59,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:03:59,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:03:59,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:03:59,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:03:59,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:03:59,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:03:59,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:03:59,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 23:03:59,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:03:59,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 23:03:59,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:03:59,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:03:59,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:03:59,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 23:03:59,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:03:59,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-27 23:03:59,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:03:59,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:03:59,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:03:59,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:03:59,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:03:59,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:03:59,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:03:59,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:03:59,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:03:59,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:03:59,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:03:59,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 23:03:59,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:03:59,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:03:59,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:03:59,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:03:59,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:03:59,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:03:59,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:03:59,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:03:59,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:03:59,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 23:03:59,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:03:59,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 23:03:59,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:03:59,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:03:59,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:03:59,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:03:59,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:03:59,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:03:59,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:03:59,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:03:59,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:03:59,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:03:59,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:03:59,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 23:03:59,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:03:59,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:03:59,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:03:59,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:03:59,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:03:59,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 23:03:59,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:03:59,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:03:59,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:03:59,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:03:59,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:03:59,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-27 23:03:59,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:03:59,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:03:59,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:03:59,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:03:59,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:03:59,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:03:59,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:03:59,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:03:59,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:03:59,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:03:59,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:03:59,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 23:03:59,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:03:59,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:03:59,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:03:59,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:03:59,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:03:59,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:03:59,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:03:59,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:03:59,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:03:59,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:03:59,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:03:59,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:03:59,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1710091715] [2020-10-27 23:03:59,525 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:03:59,525 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 23:03:59,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60610387] [2020-10-27 23:03:59,527 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 23:03:59,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:03:59,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 23:03:59,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-27 23:03:59,531 INFO L87 Difference]: Start difference. First operand 205 states and 278 transitions. Second operand 10 states. [2020-10-27 23:03:59,757 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-27 23:04:00,596 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2020-10-27 23:04:01,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:04:01,704 INFO L93 Difference]: Finished difference Result 523 states and 730 transitions. [2020-10-27 23:04:01,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-27 23:04:01,705 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 86 [2020-10-27 23:04:01,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:04:01,709 INFO L225 Difference]: With dead ends: 523 [2020-10-27 23:04:01,710 INFO L226 Difference]: Without dead ends: 360 [2020-10-27 23:04:01,713 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2020-10-27 23:04:01,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-10-27 23:04:01,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 341. [2020-10-27 23:04:01,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 341 states. [2020-10-27 23:04:01,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 472 transitions. [2020-10-27 23:04:01,774 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 472 transitions. Word has length 86 [2020-10-27 23:04:01,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:04:01,782 INFO L481 AbstractCegarLoop]: Abstraction has 341 states and 472 transitions. [2020-10-27 23:04:01,783 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 23:04:01,783 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 472 transitions. [2020-10-27 23:04:01,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-10-27 23:04:01,788 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:04:01,788 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] [2020-10-27 23:04:01,788 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 23:04:01,788 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:04:01,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:04:01,789 INFO L82 PathProgramCache]: Analyzing trace with hash 1828963721, now seen corresponding path program 1 times [2020-10-27 23:04:01,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:04:01,789 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2022483777] [2020-10-27 23:04:01,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:04:01,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:01,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:01,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:03,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:03,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-27 23:04:03,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 23:04:03,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1216 [2020-10-27 23:04:03,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:03,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:04:03,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-27 23:04:03,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-27 23:04:03,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:03,258 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-27 23:04:03,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:04:03,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:03,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:03,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:03,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:04:03,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:03,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 23:04:03,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:03,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:04:03,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:04:03,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:04:03,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:04:03,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:04:03,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:03,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:03,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:03,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 23:04:03,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:03,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 23:04:03,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:03,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:04:03,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:04:03,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 23:04:03,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:03,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-27 23:04:03,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:03,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:03,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:03,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:04:03,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:03,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:04:03,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:03,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:04:03,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:04:03,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:04:03,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:03,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 23:04:03,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:03,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:03,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:03,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:04:03,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:03,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:04:03,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:03,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:04:03,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:04:03,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 23:04:03,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:04:03,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 23:04:03,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:03,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:03,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:03,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:04:03,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:03,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:04:03,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:03,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:04:03,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:04:03,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:04:03,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:03,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 23:04:03,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:03,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:03,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:03,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:04:03,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:03,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:04:03,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:03,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:04:03,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:04:03,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:04:03,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:03,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 23:04:03,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:03,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:03,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:03,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:04:03,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:03,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:04:03,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:03,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:04:03,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:04:03,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:04:03,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:03,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 23:04:03,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:03,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:03,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:03,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:04:03,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:03,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:04:03,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:03,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:04:03,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:04:03,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:04:03,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:03,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:04:03,530 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2022483777] [2020-10-27 23:04:03,530 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:04:03,530 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 23:04:03,530 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467812310] [2020-10-27 23:04:03,531 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 23:04:03,531 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:04:03,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 23:04:03,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-27 23:04:03,533 INFO L87 Difference]: Start difference. First operand 341 states and 472 transitions. Second operand 10 states. [2020-10-27 23:04:03,781 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-27 23:04:05,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:04:05,894 INFO L93 Difference]: Finished difference Result 919 states and 1288 transitions. [2020-10-27 23:04:05,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-27 23:04:05,895 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 87 [2020-10-27 23:04:05,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:04:05,907 INFO L225 Difference]: With dead ends: 919 [2020-10-27 23:04:05,908 INFO L226 Difference]: Without dead ends: 620 [2020-10-27 23:04:05,910 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2020-10-27 23:04:05,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2020-10-27 23:04:05,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 589. [2020-10-27 23:04:05,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 589 states. [2020-10-27 23:04:06,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 820 transitions. [2020-10-27 23:04:06,003 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 820 transitions. Word has length 87 [2020-10-27 23:04:06,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:04:06,004 INFO L481 AbstractCegarLoop]: Abstraction has 589 states and 820 transitions. [2020-10-27 23:04:06,004 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 23:04:06,004 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 820 transitions. [2020-10-27 23:04:06,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-27 23:04:06,009 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:04:06,010 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] [2020-10-27 23:04:06,010 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 23:04:06,010 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:04:06,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:04:06,011 INFO L82 PathProgramCache]: Analyzing trace with hash -718534626, now seen corresponding path program 1 times [2020-10-27 23:04:06,011 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:04:06,012 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1827194526] [2020-10-27 23:04:06,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:04:06,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:06,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:06,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:08,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:08,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-27 23:04:08,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 23:04:08,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2553 [2020-10-27 23:04:08,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:08,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 23:04:08,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-27 23:04:08,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-27 23:04:08,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:08,850 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-27 23:04:08,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:04:08,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:08,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:08,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:08,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:04:08,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:08,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 23:04:08,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:08,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:04:08,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:04:08,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:04:08,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:08,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:04:08,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:08,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:08,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:08,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 23:04:08,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:08,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-27 23:04:08,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:08,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 23:04:08,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:04:08,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 23:04:08,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:09,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-27 23:04:09,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:09,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:09,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:09,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:04:09,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:09,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:04:09,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:09,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:04:09,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:04:09,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:04:09,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:04:09,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 23:04:09,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:09,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:09,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:09,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:04:09,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:09,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 23:04:09,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:09,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:04:09,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:04:09,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 23:04:09,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:09,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 23:04:09,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:09,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:09,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:09,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:04:09,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:09,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 23:04:09,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:09,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:04:09,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:04:09,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 23:04:09,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:09,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-27 23:04:09,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:09,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:09,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:09,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:04:09,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:09,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:04:09,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:09,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:04:09,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:04:09,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 23:04:09,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:09,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-27 23:04:09,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:09,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:09,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:09,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:04:09,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:09,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 23:04:09,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:09,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:04:09,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:04:09,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 23:04:09,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:09,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-27 23:04:09,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:09,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:09,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:09,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:04:09,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:09,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:04:09,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:09,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:04:09,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 23:04:09,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 23:04:09,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:09,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:04:09,407 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1827194526] [2020-10-27 23:04:09,409 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:04:09,409 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-27 23:04:09,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225059383] [2020-10-27 23:04:09,410 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-27 23:04:09,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:04:09,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-27 23:04:09,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2020-10-27 23:04:09,411 INFO L87 Difference]: Start difference. First operand 589 states and 820 transitions. Second operand 16 states. [2020-10-27 23:04:09,905 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 148 [2020-10-27 23:04:10,141 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-27 23:04:10,416 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-27 23:04:10,646 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-27 23:04:11,289 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2020-10-27 23:04:11,634 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-27 23:04:11,998 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-27 23:04:12,452 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-27 23:04:15,145 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 23:04:15,402 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-27 23:04:15,627 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-27 23:04:19,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:04:19,849 INFO L93 Difference]: Finished difference Result 5880 states and 8318 transitions. [2020-10-27 23:04:19,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2020-10-27 23:04:19,850 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 88 [2020-10-27 23:04:19,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:04:19,889 INFO L225 Difference]: With dead ends: 5880 [2020-10-27 23:04:19,890 INFO L226 Difference]: Without dead ends: 5333 [2020-10-27 23:04:19,896 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1898 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=1176, Invalid=4676, Unknown=0, NotChecked=0, Total=5852 [2020-10-27 23:04:19,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5333 states. [2020-10-27 23:04:20,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5333 to 5057. [2020-10-27 23:04:20,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5057 states. [2020-10-27 23:04:20,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5057 states to 5057 states and 7184 transitions. [2020-10-27 23:04:20,333 INFO L78 Accepts]: Start accepts. Automaton has 5057 states and 7184 transitions. Word has length 88 [2020-10-27 23:04:20,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:04:20,334 INFO L481 AbstractCegarLoop]: Abstraction has 5057 states and 7184 transitions. [2020-10-27 23:04:20,334 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-27 23:04:20,334 INFO L276 IsEmpty]: Start isEmpty. Operand 5057 states and 7184 transitions. [2020-10-27 23:04:20,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-27 23:04:20,338 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:04:20,338 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] [2020-10-27 23:04:20,338 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 23:04:20,339 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:04:20,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:04:20,339 INFO L82 PathProgramCache]: Analyzing trace with hash 253943396, now seen corresponding path program 1 times [2020-10-27 23:04:20,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:04:20,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [803606427] [2020-10-27 23:04:20,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:04:20,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:20,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:20,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:21,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:21,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-27 23:04:21,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 23:04:21,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1108 [2020-10-27 23:04:21,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:21,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 23:04:21,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 99 [2020-10-27 23:04:21,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 23:04:21,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:04:21,761 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-27 23:04:21,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:04:21,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:21,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:21,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:21,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:04:21,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:21,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:04:21,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:21,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:04:21,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:04:21,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:04:21,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:21,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:04:21,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:21,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:21,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:21,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 23:04:21,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:21,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:04:21,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:21,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:04:21,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:04:21,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:04:21,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:21,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-27 23:04:21,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:21,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:21,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:21,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:04:21,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:21,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:04:21,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:21,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:04:21,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:04:21,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:04:21,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:21,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 23:04:21,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:21,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:21,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:21,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:04:21,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:21,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:04:21,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:21,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:04:21,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:04:21,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:04:21,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:21,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 23:04:21,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:21,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:21,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:21,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:04:21,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:21,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:04:21,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:21,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:04:21,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:04:21,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:04:21,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:21,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-27 23:04:21,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:21,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:21,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:21,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:04:21,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:21,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:04:21,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:21,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:04:21,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:04:21,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:04:21,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:21,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-27 23:04:21,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:21,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:21,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:21,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:04:21,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:21,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:04:21,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:21,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:04:21,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:04:21,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:04:21,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:21,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-27 23:04:21,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:21,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:21,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:21,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:04:21,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:21,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:04:21,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:21,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:04:21,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:04:21,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 23:04:21,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:21,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:04:21,988 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [803606427] [2020-10-27 23:04:21,989 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:04:21,989 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-27 23:04:21,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26650054] [2020-10-27 23:04:21,989 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 23:04:21,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:04:21,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 23:04:21,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-27 23:04:21,996 INFO L87 Difference]: Start difference. First operand 5057 states and 7184 transitions. Second operand 13 states. [2020-10-27 23:04:23,529 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-27 23:04:23,771 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-27 23:04:24,053 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-27 23:04:24,301 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-27 23:04:25,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:04:25,112 INFO L93 Difference]: Finished difference Result 6064 states and 8662 transitions. [2020-10-27 23:04:25,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-27 23:04:25,113 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 89 [2020-10-27 23:04:25,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:04:25,152 INFO L225 Difference]: With dead ends: 6064 [2020-10-27 23:04:25,153 INFO L226 Difference]: Without dead ends: 6061 [2020-10-27 23:04:25,158 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=107, Invalid=355, Unknown=0, NotChecked=0, Total=462 [2020-10-27 23:04:25,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6061 states. [2020-10-27 23:04:25,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6061 to 5417. [2020-10-27 23:04:25,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5417 states. [2020-10-27 23:04:25,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5417 states to 5417 states and 7544 transitions. [2020-10-27 23:04:25,676 INFO L78 Accepts]: Start accepts. Automaton has 5417 states and 7544 transitions. Word has length 89 [2020-10-27 23:04:25,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:04:25,677 INFO L481 AbstractCegarLoop]: Abstraction has 5417 states and 7544 transitions. [2020-10-27 23:04:25,677 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 23:04:25,677 INFO L276 IsEmpty]: Start isEmpty. Operand 5417 states and 7544 transitions. [2020-10-27 23:04:25,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-27 23:04:25,679 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:04:25,679 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] [2020-10-27 23:04:25,679 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 23:04:25,679 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:04:25,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:04:25,680 INFO L82 PathProgramCache]: Analyzing trace with hash 2070897158, now seen corresponding path program 1 times [2020-10-27 23:04:25,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:04:25,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1716994145] [2020-10-27 23:04:25,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:04:25,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:25,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:25,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:26,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:26,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-27 23:04:26,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 23:04:26,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1064 [2020-10-27 23:04:26,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:26,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 23:04:26,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-27 23:04:26,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-27 23:04:26,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:27,030 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-27 23:04:27,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:04:27,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:27,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:27,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:27,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:04:27,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:27,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-27 23:04:27,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:27,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:04:27,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:04:27,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:04:27,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:27,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:04:27,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:27,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:27,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:27,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 23:04:27,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:27,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 23:04:27,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:27,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:04:27,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:04:27,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 23:04:27,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:27,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-27 23:04:27,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:27,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:27,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:27,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:04:27,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:27,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:04:27,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:27,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:04:27,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:04:27,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:04:27,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:27,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 23:04:27,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:27,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:27,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:27,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:04:27,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:27,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 23:04:27,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:27,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:04:27,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:04:27,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 23:04:27,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:27,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 23:04:27,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:27,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:27,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:27,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:04:27,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:27,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:04:27,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:27,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:04:27,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:04:27,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 23:04:27,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:27,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-27 23:04:27,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:27,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:27,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:27,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:04:27,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:27,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:04:27,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:27,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:04:27,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:04:27,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 23:04:27,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:27,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-27 23:04:27,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:27,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:27,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:27,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:04:27,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:27,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:04:27,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:27,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:04:27,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-27 23:04:27,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:04:27,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:27,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-27 23:04:27,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:04:27,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:04:27,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:04:27,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:04:27,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:04:27,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:04:27,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:04:27,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:04:27,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:04:27,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:04:27,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:04:27,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:04:27,431 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1716994145] [2020-10-27 23:04:27,431 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:04:27,431 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-27 23:04:27,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954172354] [2020-10-27 23:04:27,432 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-27 23:04:27,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:04:27,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-27 23:04:27,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2020-10-27 23:04:27,433 INFO L87 Difference]: Start difference. First operand 5417 states and 7544 transitions. Second operand 15 states. [2020-10-27 23:04:27,743 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-27 23:04:28,035 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-27 23:04:28,749 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-27 23:04:29,418 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-27 23:04:29,642 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-27 23:04:29,859 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-27 23:04:30,724 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-27 23:04:30,985 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-27 23:04:31,240 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-27 23:04:31,550 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-27 23:04:31,813 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-27 23:04:32,093 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 23:04:32,339 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-27 23:04:33,963 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-27 23:04:34,232 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-27 23:04:34,511 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-27 23:04:34,794 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-27 23:04:35,070 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-27 23:04:35,322 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-27 23:04:35,588 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-27 23:04:35,839 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 23:04:36,121 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-27 23:04:36,380 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 23:04:36,758 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-27 23:04:37,011 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 23:04:37,493 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-27 23:04:37,758 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-27 23:04:55,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:04:55,456 INFO L93 Difference]: Finished difference Result 66436 states and 95070 transitions. [2020-10-27 23:04:55,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2020-10-27 23:04:55,457 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 90 [2020-10-27 23:04:55,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:04:55,834 INFO L225 Difference]: With dead ends: 66436 [2020-10-27 23:04:55,834 INFO L226 Difference]: Without dead ends: 61061 [2020-10-27 23:04:55,911 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7331 ImplicationChecksByTransitivity, 14.2s TimeCoverageRelationStatistics Valid=2317, Invalid=16589, Unknown=0, NotChecked=0, Total=18906 [2020-10-27 23:04:55,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61061 states. [2020-10-27 23:05:01,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61061 to 59093. [2020-10-27 23:05:01,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59093 states. [2020-10-27 23:05:01,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59093 states to 59093 states and 78150 transitions. [2020-10-27 23:05:01,630 INFO L78 Accepts]: Start accepts. Automaton has 59093 states and 78150 transitions. Word has length 90 [2020-10-27 23:05:01,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:05:01,631 INFO L481 AbstractCegarLoop]: Abstraction has 59093 states and 78150 transitions. [2020-10-27 23:05:01,631 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-27 23:05:01,631 INFO L276 IsEmpty]: Start isEmpty. Operand 59093 states and 78150 transitions. [2020-10-27 23:05:01,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-27 23:05:01,635 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:05:01,635 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] [2020-10-27 23:05:01,635 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 23:05:01,635 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:05:01,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:05:01,636 INFO L82 PathProgramCache]: Analyzing trace with hash -1125069672, now seen corresponding path program 1 times [2020-10-27 23:05:01,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:05:01,636 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [19455349] [2020-10-27 23:05:01,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:05:01,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:01,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:01,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:02,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:02,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-27 23:05:02,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 23:05:02,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 885 [2020-10-27 23:05:02,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:02,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:05:02,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-27 23:05:02,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 23:05:02,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:02,766 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-27 23:05:02,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:05:02,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:02,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:02,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:02,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:05:02,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:02,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 23:05:02,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:02,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:02,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:02,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:02,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:02,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:05:02,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:02,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:02,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:02,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 23:05:02,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:02,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 23:05:02,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:02,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:02,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:02,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:05:02,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:02,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-27 23:05:02,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:02,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:02,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:02,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:05:02,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:02,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:05:02,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:02,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:02,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:02,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:05:02,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:02,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 23:05:02,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:02,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:02,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:02,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 23:05:02,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:02,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 23:05:02,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:02,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:05:02,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:05:02,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 23:05:02,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:02,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-27 23:05:02,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:02,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:02,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:02,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:05:02,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:02,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:05:02,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:02,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:02,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:05:02,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:02,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:03,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 23:05:03,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:03,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:03,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:03,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:05:03,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:03,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:05:03,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:03,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:03,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:05:03,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:03,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:03,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 23:05:03,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:03,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:03,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:03,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:05:03,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:03,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:05:03,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:03,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:03,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:05:03,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:03,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:03,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-27 23:05:03,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:03,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:03,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:03,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:05:03,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:03,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:05:03,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:03,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:03,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:05:03,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:03,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:03,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:05:03,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [19455349] [2020-10-27 23:05:03,107 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:05:03,107 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 23:05:03,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943711573] [2020-10-27 23:05:03,108 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 23:05:03,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:05:03,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 23:05:03,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-27 23:05:03,109 INFO L87 Difference]: Start difference. First operand 59093 states and 78150 transitions. Second operand 10 states. [2020-10-27 23:05:03,558 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-27 23:05:04,964 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-27 23:05:12,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:05:12,306 INFO L93 Difference]: Finished difference Result 169541 states and 224448 transitions. [2020-10-27 23:05:12,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-27 23:05:12,306 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 91 [2020-10-27 23:05:12,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:05:13,139 INFO L225 Difference]: With dead ends: 169541 [2020-10-27 23:05:13,139 INFO L226 Difference]: Without dead ends: 110502 [2020-10-27 23:05:13,311 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=133, Invalid=329, Unknown=0, NotChecked=0, Total=462 [2020-10-27 23:05:13,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110502 states. [2020-10-27 23:05:21,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110502 to 108005. [2020-10-27 23:05:21,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108005 states. [2020-10-27 23:05:22,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108005 states to 108005 states and 141148 transitions. [2020-10-27 23:05:22,359 INFO L78 Accepts]: Start accepts. Automaton has 108005 states and 141148 transitions. Word has length 91 [2020-10-27 23:05:22,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:05:22,360 INFO L481 AbstractCegarLoop]: Abstraction has 108005 states and 141148 transitions. [2020-10-27 23:05:22,360 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 23:05:22,360 INFO L276 IsEmpty]: Start isEmpty. Operand 108005 states and 141148 transitions. [2020-10-27 23:05:22,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-27 23:05:22,362 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:05:22,363 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] [2020-10-27 23:05:22,363 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 23:05:22,363 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:05:22,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:05:22,363 INFO L82 PathProgramCache]: Analyzing trace with hash 1246112394, now seen corresponding path program 1 times [2020-10-27 23:05:22,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:05:22,364 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1753033103] [2020-10-27 23:05:22,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:05:22,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:22,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:22,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:22,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-27 23:05:22,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:22,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 189 [2020-10-27 23:05:22,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:22,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:05:22,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 23:05:22,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-27 23:05:22,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:22,815 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-27 23:05:22,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:05:22,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:22,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:22,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:22,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:05:22,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:22,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:05:22,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:22,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:22,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:22,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:22,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:22,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:05:22,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:22,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:22,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:22,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 23:05:22,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:22,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:05:22,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:22,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:22,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:22,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 23:05:22,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:22,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-27 23:05:22,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:22,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:22,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:22,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:05:22,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:22,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:05:22,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:22,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:22,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:22,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:05:22,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:22,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 23:05:22,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:22,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:22,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:22,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 23:05:22,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:22,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 23:05:22,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:22,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:05:22,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:05:22,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 23:05:22,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:22,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-27 23:05:22,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:22,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:22,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:22,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:05:22,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:22,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:05:22,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:22,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:22,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:22,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 23:05:22,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:22,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 23:05:22,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:22,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:22,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:22,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:05:22,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:22,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:05:22,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:22,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:22,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:22,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 23:05:22,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:23,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 23:05:23,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:23,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:23,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:23,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:05:23,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:23,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:05:23,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:23,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:23,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:23,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 23:05:23,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:23,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-27 23:05:23,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:23,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:23,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:23,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:05:23,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:23,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:05:23,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:23,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:23,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-27 23:05:23,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:05:23,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:23,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:05:23,343 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1753033103] [2020-10-27 23:05:23,343 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:05:23,345 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 23:05:23,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537927336] [2020-10-27 23:05:23,349 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 23:05:23,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:05:23,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 23:05:23,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-27 23:05:23,349 INFO L87 Difference]: Start difference. First operand 108005 states and 141148 transitions. Second operand 10 states. [2020-10-27 23:05:23,635 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-27 23:05:25,900 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-27 23:05:38,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:05:38,697 INFO L93 Difference]: Finished difference Result 310844 states and 411280 transitions. [2020-10-27 23:05:38,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-27 23:05:38,698 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 91 [2020-10-27 23:05:38,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:05:39,805 INFO L225 Difference]: With dead ends: 310844 [2020-10-27 23:05:39,805 INFO L226 Difference]: Without dead ends: 203009 [2020-10-27 23:05:40,033 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=160, Invalid=440, Unknown=0, NotChecked=0, Total=600 [2020-10-27 23:05:40,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203009 states. [2020-10-27 23:05:53,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203009 to 196293. [2020-10-27 23:05:53,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196293 states. [2020-10-27 23:05:54,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196293 states to 196293 states and 258660 transitions. [2020-10-27 23:05:54,355 INFO L78 Accepts]: Start accepts. Automaton has 196293 states and 258660 transitions. Word has length 91 [2020-10-27 23:05:54,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:05:54,355 INFO L481 AbstractCegarLoop]: Abstraction has 196293 states and 258660 transitions. [2020-10-27 23:05:54,355 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 23:05:54,355 INFO L276 IsEmpty]: Start isEmpty. Operand 196293 states and 258660 transitions. [2020-10-27 23:05:54,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-10-27 23:05:54,403 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:05:54,403 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:05:54,404 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-27 23:05:54,404 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:05:54,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:05:54,404 INFO L82 PathProgramCache]: Analyzing trace with hash -2086284936, now seen corresponding path program 1 times [2020-10-27 23:05:54,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:05:54,405 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [677078172] [2020-10-27 23:05:54,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:05:54,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:54,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:54,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:57,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:57,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-27 23:05:57,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 23:05:57,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2647 [2020-10-27 23:05:57,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:57,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 23:05:57,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 23:05:57,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-27 23:05:57,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:57,348 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-27 23:05:57,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:05:57,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:57,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:57,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:57,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:05:57,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:57,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:05:57,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:57,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:57,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:57,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:57,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:57,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:05:57,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:57,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:57,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:57,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 23:05:57,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:57,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:05:57,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:57,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:57,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:57,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 23:05:57,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:57,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-27 23:05:57,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:57,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:57,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:57,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:05:57,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:57,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:05:57,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:57,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:57,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:57,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:05:57,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:57,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 23:05:57,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:57,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:57,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:57,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 23:05:57,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:57,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-27 23:05:57,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:57,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:05:57,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:05:57,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 23:05:57,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:57,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-27 23:05:57,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:57,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:57,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:57,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:05:57,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:57,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:05:57,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:57,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:57,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:57,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 23:05:57,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:57,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 23:05:57,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:57,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:57,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:57,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:05:57,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:57,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:05:57,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:57,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:57,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:57,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 23:05:57,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:57,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 23:05:57,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:57,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:57,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:57,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:05:57,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:57,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:05:57,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:57,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:57,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:57,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 23:05:57,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:57,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-27 23:05:57,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:57,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:57,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:57,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:57,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:57,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:05:57,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:57,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:57,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:57,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:05:57,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:57,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-27 23:05:57,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:57,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:57,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:57,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:05:57,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:57,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:05:57,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:57,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:57,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:57,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:05:57,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:57,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-27 23:05:57,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:57,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:57,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:57,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 23:05:57,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:57,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 23:05:57,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:57,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 23:05:57,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:05:57,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 23:05:57,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:57,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-27 23:05:57,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:57,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:57,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:57,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:57,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:57,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:05:57,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:57,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:57,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:57,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:05:57,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:57,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-27 23:05:57,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:57,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:57,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:57,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:57,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:57,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:05:57,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:57,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:57,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:57,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:05:57,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:57,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-27 23:05:57,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:57,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:57,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:57,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:57,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:57,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:05:57,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:57,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:57,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:57,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:05:57,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:57,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-27 23:05:57,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:57,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:57,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:57,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:05:57,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:57,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:05:57,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:57,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:57,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-27 23:05:57,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:05:57,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:57,796 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-27 23:05:57,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [677078172] [2020-10-27 23:05:57,796 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 23:05:57,797 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-27 23:05:57,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887842068] [2020-10-27 23:05:57,797 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 23:05:57,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:05:57,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 23:05:57,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-10-27 23:05:57,798 INFO L87 Difference]: Start difference. First operand 196293 states and 258660 transitions. Second operand 12 states. [2020-10-27 23:05:58,055 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-27 23:05:59,455 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-27 23:06:09,428 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-27 23:06:20,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:06:20,145 INFO L93 Difference]: Finished difference Result 461235 states and 612814 transitions. [2020-10-27 23:06:20,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-27 23:06:20,146 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 136 [2020-10-27 23:06:20,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:06:21,407 INFO L225 Difference]: With dead ends: 461235 [2020-10-27 23:06:21,408 INFO L226 Difference]: Without dead ends: 300984 [2020-10-27 23:06:21,630 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 39 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=246, Invalid=876, Unknown=0, NotChecked=0, Total=1122 [2020-10-27 23:06:22,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300984 states. [2020-10-27 23:06:41,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300984 to 293429. [2020-10-27 23:06:41,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293429 states. [2020-10-27 23:06:42,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293429 states to 293429 states and 388120 transitions. [2020-10-27 23:06:42,835 INFO L78 Accepts]: Start accepts. Automaton has 293429 states and 388120 transitions. Word has length 136 [2020-10-27 23:06:42,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:06:42,838 INFO L481 AbstractCegarLoop]: Abstraction has 293429 states and 388120 transitions. [2020-10-27 23:06:42,838 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 23:06:42,838 INFO L276 IsEmpty]: Start isEmpty. Operand 293429 states and 388120 transitions. [2020-10-27 23:06:42,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-10-27 23:06:42,891 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:06:42,892 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:06:42,892 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-27 23:06:42,892 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:06:42,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:06:42,893 INFO L82 PathProgramCache]: Analyzing trace with hash 1996705665, now seen corresponding path program 1 times [2020-10-27 23:06:42,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:06:42,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1424184087] [2020-10-27 23:06:42,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:06:42,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:42,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:43,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:43,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:43,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:44,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:47,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:47,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-27 23:06:47,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 23:06:47,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-27 23:06:47,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:47,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:06:47,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-27 23:06:47,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-27 23:06:47,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:48,170 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-27 23:06:48,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:06:48,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:48,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:48,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:48,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:06:48,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:48,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:06:48,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:48,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:06:48,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:48,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:06:48,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:48,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:06:48,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:48,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:48,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:48,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 23:06:48,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:48,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:06:48,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:48,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:06:48,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:48,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:06:48,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:48,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-27 23:06:48,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:48,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:48,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:48,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:06:48,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:48,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:06:48,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:48,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:06:48,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:48,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:06:48,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:48,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 23:06:48,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:48,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:48,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:48,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:06:48,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:48,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:06:48,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:48,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:06:48,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:48,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:06:48,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:48,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 23:06:48,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:48,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:48,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:48,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:06:48,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:48,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:06:48,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:48,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:06:48,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:48,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 23:06:48,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:48,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-27 23:06:48,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:48,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:48,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:48,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 23:06:48,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:48,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:06:48,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:48,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:06:48,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:48,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 23:06:48,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:48,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 23:06:48,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:48,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:48,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:48,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:06:48,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:48,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:06:48,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:48,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:06:48,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:48,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 23:06:48,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:48,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-27 23:06:48,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:48,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:48,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:48,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:06:48,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:48,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:06:48,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:48,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:06:48,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:48,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:06:48,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:48,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-27 23:06:48,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:48,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:48,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:48,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:06:48,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:48,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:06:48,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:48,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:06:48,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:48,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:06:48,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:06:48,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-27 23:06:48,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:48,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:48,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:48,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:06:48,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:48,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:06:48,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:48,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:06:48,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:06:48,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 23:06:48,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:48,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-27 23:06:48,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:48,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:48,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:48,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:06:48,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:48,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:06:48,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:48,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:06:48,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:06:48,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:06:48,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:48,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 23:06:48,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:48,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:48,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:48,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 23:06:48,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:48,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:06:48,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:48,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:06:48,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 23:06:48,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:06:48,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:48,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-27 23:06:48,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:48,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:48,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:48,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:06:48,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:48,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 23:06:48,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:48,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:06:48,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:06:48,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:06:48,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:48,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-27 23:06:48,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:48,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:48,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:48,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:06:48,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:48,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:06:48,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:48,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:06:48,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:06:48,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:06:48,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:48,521 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-27 23:06:48,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1424184087] [2020-10-27 23:06:48,521 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 23:06:48,521 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-27 23:06:48,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081267598] [2020-10-27 23:06:48,523 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 23:06:48,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:06:48,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 23:06:48,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-27 23:06:48,523 INFO L87 Difference]: Start difference. First operand 293429 states and 388120 transitions. Second operand 10 states. [2020-10-27 23:06:48,816 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-27 23:06:49,401 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-27 23:06:50,079 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52