/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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.5.2.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 12:38:00,340 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 12:38:00,346 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 12:38:00,408 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 12:38:00,408 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 12:38:00,416 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 12:38:00,419 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 12:38:00,424 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 12:38:00,428 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 12:38:00,435 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 12:38:00,437 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 12:38:00,438 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 12:38:00,439 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 12:38:00,443 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 12:38:00,447 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 12:38:00,450 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 12:38:00,451 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 12:38:00,455 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 12:38:00,462 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 12:38:00,471 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 12:38:00,473 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 12:38:00,475 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 12:38:00,478 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 12:38:00,480 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 12:38:00,497 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 12:38:00,498 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 12:38:00,498 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 12:38:00,500 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 12:38:00,501 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 12:38:00,502 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 12:38:00,502 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 12:38:00,503 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 12:38:00,505 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 12:38:00,506 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 12:38:00,507 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 12:38:00,507 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 12:38:00,508 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 12:38:00,508 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 12:38:00,508 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 12:38:00,509 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 12:38:00,510 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 12:38:00,517 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 [2020-10-29 12:38:00,567 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 12:38:00,567 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 12:38:00,571 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 12:38:00,571 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 12:38:00,572 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 12:38:00,572 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 12:38:00,572 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 12:38:00,572 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 12:38:00,572 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 12:38:00,573 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 12:38:00,574 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 12:38:00,574 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 12:38:00,574 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 12:38:00,574 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 12:38:00,575 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 12:38:00,575 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 12:38:00,575 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 12:38:00,575 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 12:38:00,575 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 12:38:00,576 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 12:38:00,576 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 12:38:00,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 12:38:00,576 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 12:38:00,576 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 12:38:00,577 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 12:38:00,577 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 12:38:00,577 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 12:38:00,577 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 12:38:00,577 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 12:38:00,577 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 12:38:00,986 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 12:38:01,015 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 12:38:01,018 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 12:38:01,019 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 12:38:01,020 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 12:38:01,024 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c [2020-10-29 12:38:01,106 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8f4682725/2e6fd2652ce94322ad0b80b80aaf6c2a/FLAG854707585 [2020-10-29 12:38:01,974 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 12:38:01,975 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c [2020-10-29 12:38:01,994 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8f4682725/2e6fd2652ce94322ad0b80b80aaf6c2a/FLAG854707585 [2020-10-29 12:38:02,206 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8f4682725/2e6fd2652ce94322ad0b80b80aaf6c2a [2020-10-29 12:38:02,212 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 12:38:02,222 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 12:38:02,227 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 12:38:02,227 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 12:38:02,232 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 12:38:02,233 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:38:02" (1/1) ... [2020-10-29 12:38:02,243 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4042ade and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:38:02, skipping insertion in model container [2020-10-29 12:38:02,244 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:38:02" (1/1) ... [2020-10-29 12:38:02,255 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 12:38:02,321 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 12:38:02,721 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 12:38:02,741 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 12:38:02,799 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 12:38:02,821 INFO L208 MainTranslator]: Completed translation [2020-10-29 12:38:02,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:38:02 WrapperNode [2020-10-29 12:38:02,822 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 12:38:02,823 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 12:38:02,823 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 12:38:02,823 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 12:38:02,837 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:38:02" (1/1) ... [2020-10-29 12:38:02,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:38:02" (1/1) ... [2020-10-29 12:38:02,850 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:38:02" (1/1) ... [2020-10-29 12:38:02,853 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:38:02" (1/1) ... [2020-10-29 12:38:02,869 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:38:02" (1/1) ... [2020-10-29 12:38:02,882 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:38:02" (1/1) ... [2020-10-29 12:38:02,886 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:38:02" (1/1) ... [2020-10-29 12:38:02,897 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 12:38:02,902 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 12:38:02,902 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 12:38:02,902 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 12:38:02,903 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:38:02" (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 [2020-10-29 12:38:02,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 12:38:02,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 12:38:02,998 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 12:38:02,998 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-29 12:38:02,998 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-29 12:38:02,998 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-29 12:38:02,998 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-29 12:38:02,998 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-29 12:38:02,999 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-29 12:38:02,999 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-29 12:38:02,999 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-29 12:38:02,999 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 12:38:02,999 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-29 12:38:03,000 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 12:38:03,000 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 12:38:03,000 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 12:38:03,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 12:38:03,000 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-29 12:38:03,000 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-29 12:38:03,001 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-29 12:38:03,001 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-29 12:38:03,001 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-29 12:38:03,001 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-29 12:38:03,001 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-29 12:38:03,001 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-29 12:38:03,001 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-29 12:38:03,002 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-29 12:38:03,002 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-29 12:38:03,002 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-29 12:38:03,002 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-29 12:38:03,002 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-29 12:38:03,002 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 12:38:03,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 12:38:03,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 12:38:03,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 12:38:03,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 12:38:03,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 12:38:03,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 12:38:03,978 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 12:38:03,978 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 12:38:03,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:38:03 BoogieIcfgContainer [2020-10-29 12:38:03,980 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 12:38:03,983 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 12:38:03,983 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 12:38:03,986 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 12:38:03,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 12:38:02" (1/3) ... [2020-10-29 12:38:03,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ade922c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 12:38:03, skipping insertion in model container [2020-10-29 12:38:03,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:38:02" (2/3) ... [2020-10-29 12:38:03,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ade922c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 12:38:03, skipping insertion in model container [2020-10-29 12:38:03,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:38:03" (3/3) ... [2020-10-29 12:38:03,990 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c [2020-10-29 12:38:04,003 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 12:38:04,009 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 12:38:04,024 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 12:38:04,054 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 12:38:04,054 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 12:38:04,054 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 12:38:04,054 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 12:38:04,055 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 12:38:04,055 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 12:38:04,055 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 12:38:04,055 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 12:38:04,078 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states. [2020-10-29 12:38:04,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-29 12:38:04,090 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:38:04,091 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] [2020-10-29 12:38:04,091 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:38:04,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:38:04,098 INFO L82 PathProgramCache]: Analyzing trace with hash -483094617, now seen corresponding path program 1 times [2020-10-29 12:38:04,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:38:04,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [230318082] [2020-10-29 12:38:04,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:38:04,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:38:04,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:04,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:38:04,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-29 12:38:04,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:38:04,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 439 [2020-10-29 12:38:04,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:38:04,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:38:04,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:38:04,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-29 12:38:04,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:38:04,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-29 12:38:05,198 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-29 12:38:05,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:38:05,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:38:05,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:05,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:38:05,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:38:05,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:38:05,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 12:38:05,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:38:05,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:38:05,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:38:05,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:38:05,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:38:05,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:38:05,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:38:05,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:38:05,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:05,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:38:05,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:38:05,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:38:05,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:38:05,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:38:05,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:38:05,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:38:05,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:38:05,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:38:05,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:38:05,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-29 12:38:05,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:38:05,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:05,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:38:05,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:38:05,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:38:05,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:38:05,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:38:05,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:38:05,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:38:05,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-29 12:38:05,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:38:05,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:38:05,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-29 12:38:05,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:38:05,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:05,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:38:05,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:38:05,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:38:05,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:38:05,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:38:05,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:38:05,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:38:05,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:38:05,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:38:05,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:38:05,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-29 12:38:05,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:38:05,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:05,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:38:05,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:38:05,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:38:05,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:38:05,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:38:05,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:38:05,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:38:05,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:38:05,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:38:05,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:38:05,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-29 12:38:05,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:38:05,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:05,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:38:05,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:38:05,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:38:05,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:38:05,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:38:05,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:38:05,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:38:05,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:38:05,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:38:05,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:38:05,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 12:38:05,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:38:05,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:05,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:38:05,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:38:05,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:38:05,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:38:05,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:38:05,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:38:05,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:38:05,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:38:05,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:38:05,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:38:05,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-29 12:38:05,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:38:05,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:05,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:38:05,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:38:05,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:38:05,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:38:05,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:38:05,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:38:05,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:38:05,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:38:05,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:38:05,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:38:05,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-29 12:38:05,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:38:05,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:05,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:38:05,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:38:05,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:38:05,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:38:05,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:38:05,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:38:05,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:38:05,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:38:05,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:38:05,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:38:05,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:38:05,506 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [230318082] [2020-10-29 12:38:05,508 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:38:05,508 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-29 12:38:05,509 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700924708] [2020-10-29 12:38:05,513 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 12:38:05,514 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:38:05,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 12:38:05,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-29 12:38:05,531 INFO L87 Difference]: Start difference. First operand 161 states. Second operand 8 states. [2020-10-29 12:38:07,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:38:07,001 INFO L93 Difference]: Finished difference Result 273 states and 407 transitions. [2020-10-29 12:38:07,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 12:38:07,003 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 68 [2020-10-29 12:38:07,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:38:07,015 INFO L225 Difference]: With dead ends: 273 [2020-10-29 12:38:07,015 INFO L226 Difference]: Without dead ends: 159 [2020-10-29 12:38:07,020 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-10-29 12:38:07,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2020-10-29 12:38:07,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 153. [2020-10-29 12:38:07,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-10-29 12:38:07,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 232 transitions. [2020-10-29 12:38:07,085 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 232 transitions. Word has length 68 [2020-10-29 12:38:07,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:38:07,086 INFO L481 AbstractCegarLoop]: Abstraction has 153 states and 232 transitions. [2020-10-29 12:38:07,086 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 12:38:07,086 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 232 transitions. [2020-10-29 12:38:07,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-29 12:38:07,090 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:38:07,090 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] [2020-10-29 12:38:07,090 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 12:38:07,091 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:38:07,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:38:07,091 INFO L82 PathProgramCache]: Analyzing trace with hash -39193943, now seen corresponding path program 1 times [2020-10-29 12:38:07,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:38:07,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1382563875] [2020-10-29 12:38:07,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:38:07,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:38:07,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:07,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:38:07,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-29 12:38:07,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:38:07,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 641 [2020-10-29 12:38:07,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:38:07,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:38:07,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:38:07,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-29 12:38:07,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 12:38:07,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:38:08,138 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-29 12:38:08,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:38:08,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:38:08,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:08,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:38:08,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:38:08,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:38:08,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-29 12:38:08,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:38:08,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:38:08,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:38:08,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:38:08,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:38:08,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 12:38:08,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:38:08,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:38:08,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:08,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:38:08,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:38:08,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:38:08,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 12:38:08,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:38:08,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:38:08,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:38:08,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:38:08,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:38:08,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:38:08,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-29 12:38:08,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:38:08,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:08,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:38:08,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:38:08,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:38:08,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 12:38:08,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:38:08,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:38:08,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:38:08,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:38:08,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:38:08,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:38:08,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-29 12:38:08,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:38:08,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:08,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:38:08,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:38:08,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:38:08,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:38:08,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:38:08,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:38:08,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:38:08,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:38:08,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:38:08,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:38:08,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-29 12:38:08,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:38:08,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:08,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:38:08,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:38:08,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:38:08,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 12:38:08,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:38:08,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:38:08,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:38:08,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:38:08,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:38:08,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:38:08,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-29 12:38:08,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:38:08,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:08,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:38:08,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:38:08,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:38:08,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:38:08,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:38:08,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:38:08,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:38:08,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:38:08,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:38:08,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:38:08,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 12:38:08,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:38:08,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:08,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:38:08,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:38:08,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:38:08,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:38:08,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:38:08,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:38:08,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:38:08,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:38:08,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:38:08,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:38:08,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-29 12:38:08,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:38:08,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:08,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:38:08,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:38:08,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:38:08,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:38:08,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:38:08,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:38:08,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:38:08,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:38:08,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:38:08,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:38:08,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-29 12:38:08,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:38:08,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:08,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:38:08,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:38:08,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:38:08,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:38:08,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:38:08,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:38:08,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:38:08,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:38:08,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:38:08,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:38:08,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:38:08,631 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1382563875] [2020-10-29 12:38:08,631 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:38:08,632 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-29 12:38:08,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235865640] [2020-10-29 12:38:08,634 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-29 12:38:08,636 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:38:08,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-29 12:38:08,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-29 12:38:08,637 INFO L87 Difference]: Start difference. First operand 153 states and 232 transitions. Second operand 14 states. [2020-10-29 12:38:08,973 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-29 12:38:09,297 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-29 12:38:09,761 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-29 12:38:10,103 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-29 12:38:12,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:38:12,254 INFO L93 Difference]: Finished difference Result 268 states and 395 transitions. [2020-10-29 12:38:12,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-29 12:38:12,255 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 68 [2020-10-29 12:38:12,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:38:12,261 INFO L225 Difference]: With dead ends: 268 [2020-10-29 12:38:12,264 INFO L226 Difference]: Without dead ends: 159 [2020-10-29 12:38:12,271 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2020-10-29 12:38:12,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2020-10-29 12:38:12,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 153. [2020-10-29 12:38:12,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-10-29 12:38:12,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 200 transitions. [2020-10-29 12:38:12,321 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 200 transitions. Word has length 68 [2020-10-29 12:38:12,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:38:12,322 INFO L481 AbstractCegarLoop]: Abstraction has 153 states and 200 transitions. [2020-10-29 12:38:12,323 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-29 12:38:12,323 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 200 transitions. [2020-10-29 12:38:12,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-29 12:38:12,333 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:38:12,334 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:38:12,334 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 12:38:12,334 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:38:12,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:38:12,335 INFO L82 PathProgramCache]: Analyzing trace with hash -963829058, now seen corresponding path program 1 times [2020-10-29 12:38:12,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:38:12,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1150429770] [2020-10-29 12:38:12,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:38:12,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:38:12,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:12,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:12,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:12,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:13,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:17,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:38:17,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-29 12:38:17,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 12:38:17,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-29 12:38:17,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:38:17,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:38:17,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-29 12:38:17,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 12:38:17,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-29 12:38:17,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:38:17,699 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-29 12:38:17,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:38:17,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:38:17,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:17,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:38:17,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:38:17,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:38:17,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 12:38:17,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:38:17,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:38:17,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:38:17,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:38:17,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:38:17,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:38:17,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:38:17,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:38:17,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:17,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:38:17,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-29 12:38:17,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:38:17,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-29 12:38:17,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:38:17,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:38:17,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 12:38:17,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:38:17,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-29 12:38:17,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 12:38:17,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-29 12:38:17,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:38:17,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:17,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:38:17,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:38:17,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:38:17,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:38:17,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:38:17,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:38:17,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:38:17,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:38:17,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:38:17,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:38:17,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-29 12:38:17,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:38:17,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:17,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:38:17,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:38:17,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:38:17,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 12:38:17,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:38:17,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:38:17,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:38:17,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:38:17,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:38:17,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:38:17,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-29 12:38:17,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:38:17,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:18,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:38:18,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:38:18,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:38:18,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 12:38:18,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:38:18,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:38:18,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:38:18,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:38:18,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:38:18,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:38:18,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-29 12:38:18,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:38:18,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:18,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:38:18,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:38:18,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:38:18,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 12:38:18,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:38:18,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:38:18,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:38:18,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:38:18,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:38:18,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:38:18,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-29 12:38:18,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:38:18,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:18,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:38:18,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:38:18,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:38:18,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 12:38:18,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:38:18,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:38:18,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:38:18,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:38:18,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:38:18,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:38:18,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-29 12:38:18,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:38:18,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:18,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:38:18,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:38:18,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:38:18,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 12:38:18,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:38:18,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:38:18,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:38:18,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:38:18,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:38:18,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:38:18,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-29 12:38:18,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:38:18,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:18,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:38:18,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:38:18,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:38:18,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:38:18,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:38:18,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:38:18,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:38:18,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-29 12:38:18,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 12:38:18,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:38:18,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:38:18,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1150429770] [2020-10-29 12:38:18,386 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:38:18,386 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-29 12:38:18,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937262457] [2020-10-29 12:38:18,387 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-29 12:38:18,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:38:18,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-29 12:38:18,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2020-10-29 12:38:18,389 INFO L87 Difference]: Start difference. First operand 153 states and 200 transitions. Second operand 19 states. [2020-10-29 12:38:18,879 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-29 12:38:19,204 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-29 12:38:19,474 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-29 12:38:19,732 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-29 12:38:20,023 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-29 12:38:25,328 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-29 12:38:25,636 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-29 12:38:25,944 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2020-10-29 12:38:26,275 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-29 12:38:26,632 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-29 12:38:36,097 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 75 [2020-10-29 12:38:40,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:38:40,242 INFO L93 Difference]: Finished difference Result 1519 states and 2276 transitions. [2020-10-29 12:38:40,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2020-10-29 12:38:40,244 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 99 [2020-10-29 12:38:40,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:38:40,261 INFO L225 Difference]: With dead ends: 1519 [2020-10-29 12:38:40,261 INFO L226 Difference]: Without dead ends: 1416 [2020-10-29 12:38:40,270 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4902 ImplicationChecksByTransitivity, 10.9s TimeCoverageRelationStatistics Valid=2562, Invalid=11010, Unknown=0, NotChecked=0, Total=13572 [2020-10-29 12:38:40,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1416 states. [2020-10-29 12:38:40,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1416 to 1200. [2020-10-29 12:38:40,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1200 states. [2020-10-29 12:38:40,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1200 states to 1200 states and 1751 transitions. [2020-10-29 12:38:40,503 INFO L78 Accepts]: Start accepts. Automaton has 1200 states and 1751 transitions. Word has length 99 [2020-10-29 12:38:40,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:38:40,504 INFO L481 AbstractCegarLoop]: Abstraction has 1200 states and 1751 transitions. [2020-10-29 12:38:40,504 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-29 12:38:40,505 INFO L276 IsEmpty]: Start isEmpty. Operand 1200 states and 1751 transitions. [2020-10-29 12:38:40,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-29 12:38:40,517 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:38:40,518 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:38:40,518 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 12:38:40,519 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:38:40,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:38:40,519 INFO L82 PathProgramCache]: Analyzing trace with hash -1813193698, now seen corresponding path program 1 times [2020-10-29 12:38:40,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:38:40,520 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [971024930] [2020-10-29 12:38:40,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:38:40,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:38:40,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:40,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:40,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:40,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:40,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:45,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:38:45,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-29 12:38:45,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 12:38:45,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-29 12:38:45,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:38:45,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:38:45,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:38:45,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-29 12:38:45,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-29 12:38:45,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:38:45,873 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-29 12:38:45,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:38:45,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:38:45,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:45,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:38:45,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:38:45,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:38:45,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 12:38:45,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:38:45,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:38:45,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:38:45,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:38:45,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:38:45,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:38:45,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:38:45,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:38:45,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:45,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:38:45,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-29 12:38:45,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:38:45,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 12:38:45,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:38:45,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:38:45,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:38:45,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:38:45,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-29 12:38:45,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:38:45,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-29 12:38:45,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:38:45,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:45,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:38:45,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:38:45,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:38:45,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:38:45,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:38:45,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:38:45,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:38:45,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:38:45,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:38:45,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:38:45,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-29 12:38:45,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:38:45,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:45,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:38:45,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:38:45,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:38:45,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:38:45,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:38:45,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:38:45,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:38:45,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:38:45,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:38:45,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:38:46,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-29 12:38:46,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:38:46,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:46,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:38:46,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:38:46,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:38:46,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 12:38:46,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:38:46,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:38:46,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:38:46,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:38:46,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:38:46,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:38:46,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-29 12:38:46,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:38:46,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:46,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:38:46,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:38:46,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:38:46,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:38:46,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:38:46,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:38:46,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:38:46,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:38:46,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:38:46,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:38:46,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-29 12:38:46,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:38:46,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:46,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:38:46,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:38:46,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:38:46,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:38:46,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:38:46,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:38:46,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:38:46,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:38:46,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:38:46,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:38:46,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-29 12:38:46,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:38:46,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:46,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:38:46,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:38:46,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:38:46,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:38:46,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:38:46,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:38:46,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:38:46,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:38:46,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:38:46,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:38:46,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-29 12:38:46,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:38:46,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:46,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:38:46,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:38:46,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:38:46,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:38:46,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:38:46,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:38:46,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:38:46,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:38:46,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:38:46,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:38:46,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:38:46,310 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [971024930] [2020-10-29 12:38:46,310 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:38:46,311 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-29 12:38:46,311 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381409091] [2020-10-29 12:38:46,313 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 12:38:46,314 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:38:46,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 12:38:46,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-29 12:38:46,316 INFO L87 Difference]: Start difference. First operand 1200 states and 1751 transitions. Second operand 11 states. [2020-10-29 12:38:46,728 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-29 12:38:47,405 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2020-10-29 12:38:49,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:38:49,765 INFO L93 Difference]: Finished difference Result 3480 states and 5070 transitions. [2020-10-29 12:38:49,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-29 12:38:49,766 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 100 [2020-10-29 12:38:49,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:38:49,791 INFO L225 Difference]: With dead ends: 3480 [2020-10-29 12:38:49,791 INFO L226 Difference]: Without dead ends: 2330 [2020-10-29 12:38:49,799 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=148, Invalid=404, Unknown=0, NotChecked=0, Total=552 [2020-10-29 12:38:49,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2330 states. [2020-10-29 12:38:50,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2330 to 2206. [2020-10-29 12:38:50,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2206 states. [2020-10-29 12:38:50,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2206 states to 2206 states and 3213 transitions. [2020-10-29 12:38:50,021 INFO L78 Accepts]: Start accepts. Automaton has 2206 states and 3213 transitions. Word has length 100 [2020-10-29 12:38:50,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:38:50,023 INFO L481 AbstractCegarLoop]: Abstraction has 2206 states and 3213 transitions. [2020-10-29 12:38:50,023 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 12:38:50,024 INFO L276 IsEmpty]: Start isEmpty. Operand 2206 states and 3213 transitions. [2020-10-29 12:38:50,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-29 12:38:50,030 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:38:50,030 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:38:50,030 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 12:38:50,030 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:38:50,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:38:50,031 INFO L82 PathProgramCache]: Analyzing trace with hash 745295687, now seen corresponding path program 1 times [2020-10-29 12:38:50,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:38:50,031 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [354498600] [2020-10-29 12:38:50,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:38:50,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:38:50,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:50,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:50,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:50,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:55,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:38:55,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-29 12:38:55,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 12:38:55,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-29 12:38:55,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:38:55,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:38:55,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:38:55,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-29 12:38:55,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-29 12:38:55,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:38:55,376 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-29 12:38:55,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:38:55,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:38:55,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:55,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:38:55,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:38:55,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:38:55,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 12:38:55,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:38:55,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:38:55,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:38:55,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:38:55,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:38:55,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:38:55,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:38:55,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:38:55,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:55,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:38:55,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-29 12:38:55,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:38:55,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 12:38:55,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:38:55,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:38:55,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:38:55,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:38:55,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-29 12:38:55,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:38:55,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-29 12:38:55,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:38:55,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:55,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:38:55,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:38:55,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:38:55,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:38:55,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:38:55,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:38:55,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:38:55,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:38:55,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:38:55,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:38:55,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-29 12:38:55,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:38:55,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:55,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:38:55,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:38:55,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:38:55,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:38:55,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:38:55,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:38:55,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:38:55,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:38:55,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:38:55,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:38:55,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-29 12:38:55,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:38:55,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:55,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:38:55,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 12:38:55,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:38:55,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:38:55,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:38:55,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:38:55,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:38:55,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:38:55,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 12:38:55,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:38:55,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 12:38:55,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:38:55,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:55,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:38:55,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:38:55,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:38:55,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 12:38:55,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:38:55,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:38:55,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:38:55,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:38:55,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:38:55,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:38:55,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-29 12:38:55,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:38:55,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:55,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:38:55,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:38:55,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:38:55,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:38:55,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:38:55,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:38:55,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:38:55,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:38:55,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:38:55,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:38:55,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-29 12:38:55,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:38:55,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:55,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:38:55,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:38:55,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:38:55,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:38:55,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:38:55,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:38:55,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:38:55,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:38:55,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:38:55,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:38:55,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-29 12:38:55,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:38:55,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:55,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:38:55,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:38:55,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:38:55,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:38:55,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:38:55,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:38:55,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:38:55,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:38:55,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:38:55,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:38:55,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:38:55,717 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [354498600] [2020-10-29 12:38:55,717 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:38:55,717 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-29 12:38:55,717 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249243970] [2020-10-29 12:38:55,719 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 12:38:55,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:38:55,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 12:38:55,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-29 12:38:55,721 INFO L87 Difference]: Start difference. First operand 2206 states and 3213 transitions. Second operand 11 states. [2020-10-29 12:38:55,998 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-29 12:38:58,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:38:58,848 INFO L93 Difference]: Finished difference Result 6450 states and 9347 transitions. [2020-10-29 12:38:58,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-29 12:38:58,848 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 101 [2020-10-29 12:38:58,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:38:58,879 INFO L225 Difference]: With dead ends: 6450 [2020-10-29 12:38:58,879 INFO L226 Difference]: Without dead ends: 4294 [2020-10-29 12:38:58,888 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=148, Invalid=404, Unknown=0, NotChecked=0, Total=552 [2020-10-29 12:38:58,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4294 states. [2020-10-29 12:38:59,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4294 to 4071. [2020-10-29 12:38:59,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4071 states. [2020-10-29 12:38:59,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4071 states to 4071 states and 5896 transitions. [2020-10-29 12:38:59,273 INFO L78 Accepts]: Start accepts. Automaton has 4071 states and 5896 transitions. Word has length 101 [2020-10-29 12:38:59,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:38:59,274 INFO L481 AbstractCegarLoop]: Abstraction has 4071 states and 5896 transitions. [2020-10-29 12:38:59,274 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 12:38:59,274 INFO L276 IsEmpty]: Start isEmpty. Operand 4071 states and 5896 transitions. [2020-10-29 12:38:59,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-29 12:38:59,276 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:38:59,276 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:38:59,276 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 12:38:59,276 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:38:59,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:38:59,277 INFO L82 PathProgramCache]: Analyzing trace with hash 989800226, now seen corresponding path program 1 times [2020-10-29 12:38:59,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:38:59,278 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2039269292] [2020-10-29 12:38:59,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:38:59,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:38:59,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:59,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:38:59,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:39:04,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:39:04,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-29 12:39:04,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 12:39:04,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-29 12:39:04,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:39:04,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:39:04,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:39:04,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-29 12:39:04,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-29 12:39:04,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:39:04,598 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-29 12:39:04,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:39:04,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:39:04,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:39:04,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:39:04,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:39:04,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:39:04,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 12:39:04,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:39:04,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:39:04,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:39:04,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:39:04,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:39:04,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:39:04,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:39:04,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:39:04,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:39:04,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:39:04,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-29 12:39:04,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:39:04,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 12:39:04,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:39:04,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:39:04,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:39:04,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:39:04,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-29 12:39:04,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:39:04,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-29 12:39:04,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:39:04,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:39:04,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:39:04,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:39:04,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:39:04,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:39:04,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:39:04,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:39:04,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:39:04,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:39:04,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:39:04,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:39:04,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-29 12:39:04,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:39:04,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:39:04,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:39:04,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:39:04,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:39:04,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:39:04,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:39:04,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:39:04,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:39:04,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:39:04,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:39:04,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:39:04,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-29 12:39:04,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:39:04,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:39:04,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:39:04,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 12:39:04,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:39:04,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:39:04,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:39:04,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:39:04,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:39:04,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:39:04,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 12:39:04,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:39:04,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 12:39:04,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:39:04,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:39:04,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:39:04,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 12:39:04,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:39:04,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:39:04,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:39:04,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:39:04,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:39:04,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:39:04,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 12:39:04,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:39:04,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-29 12:39:04,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:39:04,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:39:04,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:39:04,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:39:04,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:39:04,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 12:39:04,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:39:04,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:39:04,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:39:04,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:39:04,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:39:04,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:39:04,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-29 12:39:04,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:39:04,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:39:04,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:39:04,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:39:04,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:39:04,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 12:39:04,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:39:04,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:39:04,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:39:04,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:39:04,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:39:04,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:39:04,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-29 12:39:04,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:39:04,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:39:04,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:39:04,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:39:04,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:39:04,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:39:04,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:39:04,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:39:04,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:39:04,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:39:04,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:39:04,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 12:39:04,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:39:04,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2039269292] [2020-10-29 12:39:04,967 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:39:04,967 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-29 12:39:04,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643285527] [2020-10-29 12:39:04,968 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 12:39:04,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:39:04,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 12:39:04,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-29 12:39:04,969 INFO L87 Difference]: Start difference. First operand 4071 states and 5896 transitions. Second operand 11 states. [2020-10-29 12:39:05,304 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-29 12:39:08,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:39:08,446 INFO L93 Difference]: Finished difference Result 11921 states and 17152 transitions. [2020-10-29 12:39:08,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-29 12:39:08,447 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 102 [2020-10-29 12:39:08,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:39:08,496 INFO L225 Difference]: With dead ends: 11921 [2020-10-29 12:39:08,497 INFO L226 Difference]: Without dead ends: 7900 [2020-10-29 12:39:08,511 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=148, Invalid=404, Unknown=0, NotChecked=0, Total=552 [2020-10-29 12:39:08,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7900 states. [2020-10-29 12:39:09,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7900 to 7501. [2020-10-29 12:39:09,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7501 states. [2020-10-29 12:39:09,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7501 states to 7501 states and 10776 transitions. [2020-10-29 12:39:09,137 INFO L78 Accepts]: Start accepts. Automaton has 7501 states and 10776 transitions. Word has length 102 [2020-10-29 12:39:09,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:39:09,137 INFO L481 AbstractCegarLoop]: Abstraction has 7501 states and 10776 transitions. [2020-10-29 12:39:09,137 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 12:39:09,137 INFO L276 IsEmpty]: Start isEmpty. Operand 7501 states and 10776 transitions. [2020-10-29 12:39:09,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-29 12:39:09,139 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:39:09,139 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:39:09,140 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 12:39:09,140 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:39:09,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:39:09,140 INFO L82 PathProgramCache]: Analyzing trace with hash -481789137, now seen corresponding path program 1 times [2020-10-29 12:39:09,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:39:09,141 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1375562096] [2020-10-29 12:39:09,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:39:09,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:39:09,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:39:09,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:39:10,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:39:10,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-29 12:39:10,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:39:10,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1505 [2020-10-29 12:39:10,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:39:10,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:39:10,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:39:10,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-29 12:39:10,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-29 12:39:10,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:39:10,965 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-29 12:39:10,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:39:10,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:39:10,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:39:10,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:39:10,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:39:10,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:39:10,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 12:39:10,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:39:10,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:39:10,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:39:10,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:39:10,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:39:10,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:39:10,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:39:10,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:39:10,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:39:11,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:39:11,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-29 12:39:11,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:39:11,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 12:39:11,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:39:11,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:39:11,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:39:11,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:39:11,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-29 12:39:11,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:39:11,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-29 12:39:11,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:39:11,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:39:11,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:39:11,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:39:11,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:39:11,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:39:11,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:39:11,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:39:11,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:39:11,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:39:11,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:39:11,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:39:11,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-29 12:39:11,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:39:11,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:39:11,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:39:11,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:39:11,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:39:11,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:39:11,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:39:11,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:39:11,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:39:11,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:39:11,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:39:11,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:39:11,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-29 12:39:11,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:39:11,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:39:11,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:39:11,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 12:39:11,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:39:11,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 12:39:11,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:39:11,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:39:11,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:39:11,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:39:11,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 12:39:11,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:39:11,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 12:39:11,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:39:11,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:39:11,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:39:11,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 12:39:11,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:39:11,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:39:11,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:39:11,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:39:11,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:39:11,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:39:11,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 12:39:11,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:39:11,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-29 12:39:11,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:39:11,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:39:11,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:39:11,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 12:39:11,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:39:11,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:39:11,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:39:11,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:39:11,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:39:11,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:39:11,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 12:39:11,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:39:11,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-29 12:39:11,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:39:11,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:39:11,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:39:11,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:39:11,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:39:11,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-29 12:39:11,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:39:11,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:39:11,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:39:11,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:39:11,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:39:11,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 12:39:11,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-29 12:39:11,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:39:11,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:39:11,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:39:11,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:39:11,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:39:11,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:39:11,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:39:11,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:39:11,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:39:11,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:39:11,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:39:11,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:39:11,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:39:11,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1375562096] [2020-10-29 12:39:11,428 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:39:11,429 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-29 12:39:11,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343845195] [2020-10-29 12:39:11,430 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 12:39:11,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:39:11,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 12:39:11,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-29 12:39:11,431 INFO L87 Difference]: Start difference. First operand 7501 states and 10776 transitions. Second operand 11 states. [2020-10-29 12:39:11,841 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-29 12:39:15,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:39:15,623 INFO L93 Difference]: Finished difference Result 21931 states and 31268 transitions. [2020-10-29 12:39:15,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-29 12:39:15,624 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 103 [2020-10-29 12:39:15,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:39:15,725 INFO L225 Difference]: With dead ends: 21931 [2020-10-29 12:39:15,725 INFO L226 Difference]: Without dead ends: 14480 [2020-10-29 12:39:15,752 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=148, Invalid=404, Unknown=0, NotChecked=0, Total=552 [2020-10-29 12:39:15,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14480 states. [2020-10-29 12:39:16,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14480 to 13773. [2020-10-29 12:39:16,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13773 states. [2020-10-29 12:39:16,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13773 states to 13773 states and 19572 transitions. [2020-10-29 12:39:16,955 INFO L78 Accepts]: Start accepts. Automaton has 13773 states and 19572 transitions. Word has length 103 [2020-10-29 12:39:16,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:39:16,955 INFO L481 AbstractCegarLoop]: Abstraction has 13773 states and 19572 transitions. [2020-10-29 12:39:16,955 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 12:39:16,955 INFO L276 IsEmpty]: Start isEmpty. Operand 13773 states and 19572 transitions. [2020-10-29 12:39:16,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-29 12:39:16,957 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:39:16,957 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:39:16,957 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 12:39:16,958 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:39:16,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:39:16,958 INFO L82 PathProgramCache]: Analyzing trace with hash 1912915108, now seen corresponding path program 1 times [2020-10-29 12:39:16,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:39:16,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1702593934] [2020-10-29 12:39:16,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:39:16,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:39:17,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:39:17,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:39:18,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:39:18,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 12:39:18,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:39:18,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1466 [2020-10-29 12:39:18,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:39:18,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:39:18,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 12:39:18,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-29 12:39:18,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-29 12:39:18,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:39:18,813 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-29 12:39:18,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:39:18,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:39:18,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:39:18,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:39:18,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:39:18,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:39:18,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 12:39:18,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:39:18,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:39:18,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:39:18,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:39:18,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:39:18,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:39:18,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:39:18,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:39:18,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:39:18,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:39:18,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-29 12:39:18,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:39:18,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 12:39:18,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:39:18,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:39:18,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:39:18,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:39:18,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 12:39:18,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:39:18,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-29 12:39:18,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:39:18,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:39:18,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:39:18,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:39:18,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:39:18,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:39:18,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:39:18,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:39:18,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:39:18,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:39:18,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:39:18,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:39:18,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-29 12:39:18,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:39:18,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:39:18,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:39:18,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:39:18,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:39:18,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 12:39:18,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:39:18,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:39:18,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:39:18,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:39:18,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:39:18,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:39:19,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-29 12:39:19,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:39:19,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:39:19,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:39:19,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 12:39:19,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:39:19,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 12:39:19,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:39:19,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:39:19,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:39:19,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:39:19,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 12:39:19,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:39:19,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 12:39:19,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:39:19,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:39:19,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:39:19,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 12:39:19,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:39:19,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 12:39:19,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:39:19,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:39:19,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:39:19,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:39:19,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 12:39:19,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:39:19,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-29 12:39:19,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:39:19,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:39:19,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:39:19,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 12:39:19,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:39:19,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:39:19,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:39:19,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:39:19,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:39:19,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:39:19,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 12:39:19,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:39:19,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-29 12:39:19,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:39:19,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:39:19,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:39:19,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 12:39:19,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:39:19,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:39:19,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:39:19,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:39:19,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:39:19,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-29 12:39:19,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:39:19,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:39:19,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-29 12:39:19,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:39:19,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:39:19,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:39:19,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:39:19,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:39:19,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:39:19,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:39:19,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:39:19,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:39:19,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:39:19,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:39:19,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:39:19,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:39:19,331 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1702593934] [2020-10-29 12:39:19,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:39:19,332 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-29 12:39:19,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834296348] [2020-10-29 12:39:19,332 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-29 12:39:19,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:39:19,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-29 12:39:19,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2020-10-29 12:39:19,339 INFO L87 Difference]: Start difference. First operand 13773 states and 19572 transitions. Second operand 18 states. [2020-10-29 12:39:19,751 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-29 12:39:20,117 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-29 12:39:21,179 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-29 12:39:22,025 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-29 12:39:22,428 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-29 12:39:22,803 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-29 12:39:22,940 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-29 12:39:23,083 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-29 12:39:24,060 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-29 12:39:24,423 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-29 12:39:24,759 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-29 12:39:25,141 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-29 12:39:25,485 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-29 12:39:26,103 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-29 12:39:26,419 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-29 12:39:26,885 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-29 12:39:28,156 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-29 12:39:28,514 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-29 12:39:28,846 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-29 12:39:29,240 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-29 12:39:29,572 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-29 12:39:29,935 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-29 12:39:30,282 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-29 12:39:30,666 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-29 12:39:30,989 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-29 12:39:31,121 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-29 12:39:31,641 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-29 12:39:31,967 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-29 12:39:32,393 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-29 12:39:32,733 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-29 12:39:33,158 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-29 12:39:33,657 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-29 12:39:33,977 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-29 12:39:37,009 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2020-10-29 12:39:37,347 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-29 12:39:37,710 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2020-10-29 12:39:38,050 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-29 12:39:38,489 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2020-10-29 12:39:38,807 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-29 12:39:39,157 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2020-10-29 12:39:39,504 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-29 12:39:39,848 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-29 12:39:40,163 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-29 12:39:40,495 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-29 12:39:40,825 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-29 12:39:41,309 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-29 12:39:41,634 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-29 12:39:41,967 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-29 12:39:42,287 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-29 12:39:42,628 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-29 12:39:42,947 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-29 12:39:43,331 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-29 12:39:43,652 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-29 12:39:44,227 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-29 12:39:44,533 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-29 12:39:44,805 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-29 12:39:44,961 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-29 12:39:45,413 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-29 12:39:45,726 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-29 12:39:46,051 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-29 12:39:46,367 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-29 12:39:46,961 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-29 12:39:47,270 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-29 12:39:48,646 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-29 12:39:48,959 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-29 12:39:49,377 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-29 12:39:58,094 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-29 12:40:01,359 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-10-29 12:40:03,884 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-29 12:40:04,086 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-29 12:40:04,384 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-29 12:40:06,784 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-29 12:40:07,104 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-29 12:40:11,331 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-29 12:40:11,536 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-29 12:40:11,847 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-29 12:40:12,990 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-29 12:40:14,522 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-29 12:40:15,286 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-29 12:40:15,520 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-29 12:40:15,679 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-29 12:40:15,840 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-29 12:40:16,635 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-29 12:40:19,153 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-29 12:40:19,472 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-29 12:40:19,654 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-29 12:40:20,088 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-29 12:40:20,243 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-29 12:40:20,402 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-29 12:40:20,616 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-29 12:40:20,801 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-29 12:40:20,952 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-29 12:40:22,256 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-29 12:40:23,038 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-29 12:40:23,299 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-29 12:40:23,608 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-29 12:40:48,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:40:48,530 INFO L93 Difference]: Finished difference Result 337016 states and 499952 transitions. [2020-10-29 12:40:48,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 303 states. [2020-10-29 12:40:48,532 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 104 [2020-10-29 12:40:48,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:40:51,133 INFO L225 Difference]: With dead ends: 337016 [2020-10-29 12:40:51,134 INFO L226 Difference]: Without dead ends: 323293 [2020-10-29 12:40:51,496 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 311 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42592 ImplicationChecksByTransitivity, 45.7s TimeCoverageRelationStatistics Valid=8249, Invalid=89407, Unknown=0, NotChecked=0, Total=97656 [2020-10-29 12:40:51,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323293 states. [2020-10-29 12:41:15,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323293 to 314398. [2020-10-29 12:41:15,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 314398 states. [2020-10-29 12:41:17,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314398 states to 314398 states and 425869 transitions. [2020-10-29 12:41:17,507 INFO L78 Accepts]: Start accepts. Automaton has 314398 states and 425869 transitions. Word has length 104 [2020-10-29 12:41:17,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:41:17,507 INFO L481 AbstractCegarLoop]: Abstraction has 314398 states and 425869 transitions. [2020-10-29 12:41:17,508 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-29 12:41:17,508 INFO L276 IsEmpty]: Start isEmpty. Operand 314398 states and 425869 transitions. [2020-10-29 12:41:17,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-29 12:41:17,516 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:41:17,516 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:41:17,516 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 12:41:17,517 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:41:17,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:41:17,517 INFO L82 PathProgramCache]: Analyzing trace with hash -1170823528, now seen corresponding path program 1 times [2020-10-29 12:41:17,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:41:17,517 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [769741416] [2020-10-29 12:41:17,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:41:17,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:41:17,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:41:17,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:41:17,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-29 12:41:17,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:41:17,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 403 [2020-10-29 12:41:17,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:41:17,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:41:17,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:41:17,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 117 [2020-10-29 12:41:17,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 12:41:17,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:41:18,847 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-29 12:41:18,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:41:18,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:41:18,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:41:18,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:41:18,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:41:18,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:41:18,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 12:41:18,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:41:18,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:41:18,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:41:18,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:41:18,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:41:18,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:41:18,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:41:18,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:41:18,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:41:18,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:41:18,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-29 12:41:18,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:41:18,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 12:41:18,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:41:18,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:41:18,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:41:18,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:41:18,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:41:18,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:41:18,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-29 12:41:18,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:41:18,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:41:18,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:41:18,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:41:18,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:41:18,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 12:41:18,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:41:18,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:41:18,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:41:18,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:41:18,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:41:18,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:41:18,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-29 12:41:18,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:41:18,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:41:18,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:41:18,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:41:18,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:41:18,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:41:18,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:41:18,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:41:18,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:41:18,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:41:18,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:41:18,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:41:18,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-29 12:41:18,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:41:18,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:41:18,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:41:18,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:41:18,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:41:18,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:41:18,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:41:18,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:41:18,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:41:18,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:41:18,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:41:18,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:41:19,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-29 12:41:19,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:41:19,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:41:19,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:41:19,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 12:41:19,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:41:19,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:41:19,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:41:19,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:41:19,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:41:19,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:41:19,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:41:19,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:41:19,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-29 12:41:19,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:41:19,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:41:19,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:41:19,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 12:41:19,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:41:19,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:41:19,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:41:19,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:41:19,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:41:19,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:41:19,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:41:19,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:41:19,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-29 12:41:19,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:41:19,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:41:19,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:41:19,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 12:41:19,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:41:19,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:41:19,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:41:19,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:41:19,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:41:19,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:41:19,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:41:19,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:41:19,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-29 12:41:19,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:41:19,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:41:19,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:41:19,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:41:19,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:41:19,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:41:19,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:41:19,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:41:19,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:41:19,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:41:19,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 12:41:19,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:41:19,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:41:19,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [769741416] [2020-10-29 12:41:19,197 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:41:19,197 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-29 12:41:19,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739654848] [2020-10-29 12:41:19,197 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-29 12:41:19,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:41:19,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-29 12:41:19,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-29 12:41:19,204 INFO L87 Difference]: Start difference. First operand 314398 states and 425869 transitions. Second operand 14 states. [2020-10-29 12:41:21,236 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-29 12:41:21,638 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-29 12:41:21,940 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-29 12:41:22,330 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-29 12:41:22,646 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 173