/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.5_overflow.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 07:50:59,443 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 07:50:59,446 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 07:50:59,470 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 07:50:59,470 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 07:50:59,472 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 07:50:59,473 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 07:50:59,475 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 07:50:59,476 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 07:50:59,477 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 07:50:59,478 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 07:50:59,479 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 07:50:59,480 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 07:50:59,481 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 07:50:59,482 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 07:50:59,483 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 07:50:59,483 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 07:50:59,484 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 07:50:59,486 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 07:50:59,488 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 07:50:59,489 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 07:50:59,490 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 07:50:59,492 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 07:50:59,492 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 07:50:59,495 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 07:50:59,495 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 07:50:59,495 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 07:50:59,496 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 07:50:59,497 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 07:50:59,498 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 07:50:59,498 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 07:50:59,499 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 07:50:59,499 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 07:50:59,500 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 07:50:59,501 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 07:50:59,501 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 07:50:59,502 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 07:50:59,502 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 07:50:59,502 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 07:50:59,503 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 07:50:59,504 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 07:50:59,505 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 07:50:59,527 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 07:50:59,528 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 07:50:59,529 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 07:50:59,529 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 07:50:59,529 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 07:50:59,530 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 07:50:59,530 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 07:50:59,530 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 07:50:59,530 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 07:50:59,530 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 07:50:59,531 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 07:50:59,531 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 07:50:59,531 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 07:50:59,531 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 07:50:59,531 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 07:50:59,532 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 07:50:59,532 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 07:50:59,532 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 07:50:59,532 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 07:50:59,532 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 07:50:59,533 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 07:50:59,533 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 07:50:59,533 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 07:50:59,533 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 07:50:59,533 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 07:50:59,533 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 07:50:59,534 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 07:50:59,534 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 07:50:59,534 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 07:50:59,534 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 07:50:59,861 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 07:50:59,882 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 07:50:59,889 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 07:50:59,892 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 07:50:59,892 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 07:50:59,893 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.5_overflow.ufo.UNBOUNDED.pals.c [2020-10-14 07:50:59,976 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8debf5b34/3363af9f6e004851a160808d8a352185/FLAGc2d63f1e8 [2020-10-14 07:51:00,618 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 07:51:00,619 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_floodmax.5_overflow.ufo.UNBOUNDED.pals.c [2020-10-14 07:51:00,652 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8debf5b34/3363af9f6e004851a160808d8a352185/FLAGc2d63f1e8 [2020-10-14 07:51:00,839 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8debf5b34/3363af9f6e004851a160808d8a352185 [2020-10-14 07:51:00,847 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 07:51:00,849 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 07:51:00,851 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 07:51:00,851 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 07:51:00,857 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 07:51:00,858 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:51:00" (1/1) ... [2020-10-14 07:51:00,862 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cc704b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:51:00, skipping insertion in model container [2020-10-14 07:51:00,862 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:51:00" (1/1) ... [2020-10-14 07:51:00,872 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 07:51:00,954 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 07:51:01,566 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 07:51:01,578 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 07:51:01,790 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 07:51:01,813 INFO L208 MainTranslator]: Completed translation [2020-10-14 07:51:01,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:51:01 WrapperNode [2020-10-14 07:51:01,814 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 07:51:01,814 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 07:51:01,815 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 07:51:01,815 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 07:51:01,831 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:51:01" (1/1) ... [2020-10-14 07:51:01,832 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:51:01" (1/1) ... [2020-10-14 07:51:01,853 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:51:01" (1/1) ... [2020-10-14 07:51:01,854 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:51:01" (1/1) ... [2020-10-14 07:51:01,900 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:51:01" (1/1) ... [2020-10-14 07:51:01,949 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:51:01" (1/1) ... [2020-10-14 07:51:01,965 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:51:01" (1/1) ... [2020-10-14 07:51:01,993 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 07:51:01,994 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 07:51:01,994 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 07:51:01,994 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 07:51:01,995 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:51:01" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 07:51:02,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 07:51:02,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 07:51:02,099 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 07:51:02,099 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-14 07:51:02,099 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-14 07:51:02,100 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-14 07:51:02,100 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-14 07:51:02,101 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-14 07:51:02,101 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-14 07:51:02,102 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-14 07:51:02,102 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 07:51:02,103 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-14 07:51:02,103 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 07:51:02,104 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-14 07:51:02,104 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-14 07:51:02,105 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-14 07:51:02,106 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-14 07:51:02,106 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 07:51:02,106 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 07:51:02,107 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-14 07:51:02,107 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-14 07:51:02,108 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-14 07:51:02,108 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-14 07:51:02,108 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-14 07:51:02,109 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-14 07:51:02,110 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-14 07:51:02,110 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-14 07:51:02,110 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-14 07:51:02,111 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 07:51:02,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 07:51:02,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 07:51:04,379 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 07:51:04,379 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 07:51:04,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:51:04 BoogieIcfgContainer [2020-10-14 07:51:04,389 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 07:51:04,390 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 07:51:04,390 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 07:51:04,394 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 07:51:04,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:51:00" (1/3) ... [2020-10-14 07:51:04,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33b16978 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:51:04, skipping insertion in model container [2020-10-14 07:51:04,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:51:01" (2/3) ... [2020-10-14 07:51:04,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33b16978 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:51:04, skipping insertion in model container [2020-10-14 07:51:04,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:51:04" (3/3) ... [2020-10-14 07:51:04,398 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_floodmax.5_overflow.ufo.UNBOUNDED.pals.c [2020-10-14 07:51:04,410 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 07:51:04,419 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 07:51:04,433 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 07:51:04,459 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 07:51:04,460 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 07:51:04,460 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 07:51:04,460 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 07:51:04,460 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 07:51:04,460 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 07:51:04,460 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 07:51:04,461 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 07:51:04,500 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states. [2020-10-14 07:51:04,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-10-14 07:51:04,543 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:51:04,545 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:51:04,545 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:51:04,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:51:04,552 INFO L82 PathProgramCache]: Analyzing trace with hash 1284517621, now seen corresponding path program 1 times [2020-10-14 07:51:04,561 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:51:04,562 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2038369950] [2020-10-14 07:51:04,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:51:05,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:51:05,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:51:06,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:51:06,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-10-14 07:51:06,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:51:06,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1057 [2020-10-14 07:51:06,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:51:06,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:51:06,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:51:06,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 145 [2020-10-14 07:51:06,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:51:06,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 07:51:07,376 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 355 [2020-10-14 07:51:07,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:51:07,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:51:07,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:51:07,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:51:07,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:51:07,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:51:07,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 07:51:07,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:51:07,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:51:07,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:51:07,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:51:07,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:51:07,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:51:07,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:51:07,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:51:07,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:51:07,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:51:07,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 07:51:07,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:51:07,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-10-14 07:51:07,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:51:07,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:51:07,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:51:07,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:51:07,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:51:07,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:51:07,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-14 07:51:07,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:51:07,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:51:07,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:51:07,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:51:07,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:51:07,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:51:07,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:51:07,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:51:07,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:51:07,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 07:51:07,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:51:07,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:51:07,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-14 07:51:07,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:51:07,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:51:07,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:51:07,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:51:07,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:51:07,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:51:07,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:51:07,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:51:07,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:51:07,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:51:07,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:51:07,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:51:07,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-14 07:51:07,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:51:07,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:51:07,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:51:07,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:51:07,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:51:07,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:51:07,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:51:07,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:51:07,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:51:07,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:51:07,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:51:07,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:51:07,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-14 07:51:07,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:51:07,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:51:07,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:51:07,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:51:07,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:51:07,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 07:51:07,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:51:07,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:51:07,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:51:07,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:51:07,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:51:07,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:51:07,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-14 07:51:07,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:51:07,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:51:07,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:51:07,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:51:07,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:51:07,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:51:07,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:51:07,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:51:07,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:51:07,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:51:07,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:51:07,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:51:08,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-14 07:51:08,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:51:08,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:51:08,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:51:08,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:51:08,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:51:08,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:51:08,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:51:08,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:51:08,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:51:08,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:51:08,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:51:08,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:51:08,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-14 07:51:08,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:51:08,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:51:08,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:51:08,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:51:08,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:51:08,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:51:08,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:51:08,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:51:08,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:51:08,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:51:08,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:51:08,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:51:08,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:51:08,175 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2038369950] [2020-10-14 07:51:08,178 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:51:08,178 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 07:51:08,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309229890] [2020-10-14 07:51:08,185 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 07:51:08,185 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:51:08,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 07:51:08,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-14 07:51:08,204 INFO L87 Difference]: Start difference. First operand 737 states. Second operand 8 states. [2020-10-14 07:51:11,253 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-14 07:51:11,925 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-14 07:51:12,532 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-14 07:51:13,233 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-14 07:51:13,931 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-14 07:51:14,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:51:14,852 INFO L93 Difference]: Finished difference Result 964 states and 1709 transitions. [2020-10-14 07:51:14,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 07:51:14,855 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 182 [2020-10-14 07:51:14,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:51:14,886 INFO L225 Difference]: With dead ends: 964 [2020-10-14 07:51:14,886 INFO L226 Difference]: Without dead ends: 782 [2020-10-14 07:51:14,892 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-10-14 07:51:14,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2020-10-14 07:51:15,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 732. [2020-10-14 07:51:15,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 732 states. [2020-10-14 07:51:15,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 1326 transitions. [2020-10-14 07:51:15,090 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 1326 transitions. Word has length 182 [2020-10-14 07:51:15,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:51:15,091 INFO L479 AbstractCegarLoop]: Abstraction has 732 states and 1326 transitions. [2020-10-14 07:51:15,091 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 07:51:15,092 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 1326 transitions. [2020-10-14 07:51:15,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-10-14 07:51:15,097 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:51:15,097 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:51:15,097 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 07:51:15,098 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:51:15,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:51:15,098 INFO L82 PathProgramCache]: Analyzing trace with hash 931429239, now seen corresponding path program 1 times [2020-10-14 07:51:15,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:51:15,099 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1645193729] [2020-10-14 07:51:15,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:51:15,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:51:15,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:51:18,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:51:18,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-10-14 07:51:18,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:51:18,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2931 [2020-10-14 07:51:18,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:51:18,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:51:18,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:51:18,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-14 07:51:18,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:51:18,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:51:19,299 WARN L193 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 355 [2020-10-14 07:51:19,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:51:19,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:51:19,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:51:19,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:51:19,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:51:19,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:51:19,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 07:51:19,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:51:19,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:51:19,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:51:19,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:51:19,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:51:19,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:51:19,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:51:19,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:51:19,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:51:19,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:51:19,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 07:51:19,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:51:19,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 562 [2020-10-14 07:51:19,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:51:19,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:51:19,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:51:19,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:51:19,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-14 07:51:19,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-10-14 07:51:20,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-14 07:51:20,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:51:20,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:51:20,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:51:20,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:51:20,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:51:20,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:51:20,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:51:20,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:51:20,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:51:20,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:51:20,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:51:20,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:51:20,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-14 07:51:20,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:51:20,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:51:20,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:51:20,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:51:20,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:51:20,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:51:20,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:51:20,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:51:20,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:51:20,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:51:20,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:51:20,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:51:20,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-14 07:51:20,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:51:20,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:51:20,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:51:20,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:51:20,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:51:20,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:51:20,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:51:20,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:51:20,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:51:20,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:51:20,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:51:20,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:51:20,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-14 07:51:20,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:51:20,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:51:20,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:51:20,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:51:20,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:51:20,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:51:20,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:51:20,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:51:20,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:51:20,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:51:20,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:51:20,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:51:20,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-14 07:51:20,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:51:20,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:51:20,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:51:20,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:51:20,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:51:20,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:51:20,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:51:20,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:51:20,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:51:20,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:51:20,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:51:20,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:51:20,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-14 07:51:20,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:51:20,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:51:20,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:51:20,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:51:20,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:51:20,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:51:20,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:51:20,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:51:20,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:51:20,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:51:20,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:51:20,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:51:20,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-14 07:51:20,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:51:20,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:51:20,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:51:20,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:51:20,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:51:20,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:51:20,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:51:20,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:51:20,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:51:20,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:51:20,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:51:20,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:51:20,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:51:20,569 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1645193729] [2020-10-14 07:51:20,569 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:51:20,570 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-14 07:51:20,570 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201682254] [2020-10-14 07:51:20,572 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-14 07:51:20,572 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:51:20,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-14 07:51:20,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-14 07:51:20,573 INFO L87 Difference]: Start difference. First operand 732 states and 1326 transitions. Second operand 14 states. [2020-10-14 07:51:29,430 WARN L193 SmtUtils]: Spent 717.00 ms on a formula simplification that was a NOOP. DAG size: 358 [2020-10-14 07:51:30,263 WARN L193 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 360 [2020-10-14 07:51:31,178 WARN L193 SmtUtils]: Spent 699.00 ms on a formula simplification that was a NOOP. DAG size: 358 [2020-10-14 07:51:31,935 WARN L193 SmtUtils]: Spent 714.00 ms on a formula simplification that was a NOOP. DAG size: 361 [2020-10-14 07:51:33,124 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-14 07:51:33,780 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-14 07:51:34,434 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-14 07:51:35,107 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-14 07:51:35,796 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-14 07:51:36,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:51:36,625 INFO L93 Difference]: Finished difference Result 962 states and 1701 transitions. [2020-10-14 07:51:36,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 07:51:36,626 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 182 [2020-10-14 07:51:36,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:51:36,636 INFO L225 Difference]: With dead ends: 962 [2020-10-14 07:51:36,636 INFO L226 Difference]: Without dead ends: 782 [2020-10-14 07:51:36,642 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2020-10-14 07:51:36,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2020-10-14 07:51:36,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 732. [2020-10-14 07:51:36,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 732 states. [2020-10-14 07:51:36,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 1266 transitions. [2020-10-14 07:51:36,800 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 1266 transitions. Word has length 182 [2020-10-14 07:51:36,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:51:36,801 INFO L479 AbstractCegarLoop]: Abstraction has 732 states and 1266 transitions. [2020-10-14 07:51:36,801 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-14 07:51:36,802 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 1266 transitions. [2020-10-14 07:51:36,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-10-14 07:51:36,807 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:51:36,807 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:51:36,807 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 07:51:36,808 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:51:36,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:51:36,808 INFO L82 PathProgramCache]: Analyzing trace with hash 2064659172, now seen corresponding path program 1 times [2020-10-14 07:51:36,808 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:51:36,809 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [760528516] [2020-10-14 07:51:36,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:51:36,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:51:37,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:51:37,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:51:38,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:51:39,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:51:42,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:51:42,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 265 [2020-10-14 07:51:42,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:51:42,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5081 [2020-10-14 07:51:42,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:51:42,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:51:42,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:51:42,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-10-14 07:51:42,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 07:51:42,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:51:42,960 WARN L193 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 355 [2020-10-14 07:51:42,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:51:42,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:51:42,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:51:42,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:51:42,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:51:42,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:51:42,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 07:51:42,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:51:42,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:51:42,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:51:42,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:51:42,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:51:42,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:51:43,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:51:43,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:51:43,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:51:43,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:51:43,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 07:51:43,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:51:43,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 494 [2020-10-14 07:51:43,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:51:43,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:51:43,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:51:43,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:51:43,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 140 [2020-10-14 07:51:43,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:51:43,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-14 07:51:43,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:51:43,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:51:43,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:51:43,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:51:43,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:51:43,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:51:43,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:51:43,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:51:43,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:51:43,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:51:43,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:51:43,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:51:43,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-14 07:51:43,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:51:43,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:51:43,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:51:43,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:51:43,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:51:43,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:51:43,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:51:43,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:51:43,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:51:43,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:51:43,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:51:43,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:51:43,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-14 07:51:43,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:51:43,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:51:43,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:51:43,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:51:43,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:51:43,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:51:43,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:51:43,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:51:43,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:51:43,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:51:43,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:51:43,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:51:43,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-14 07:51:43,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:51:43,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:51:43,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:51:43,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:51:43,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:51:43,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 07:51:43,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:51:43,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:51:43,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:51:43,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:51:43,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:51:43,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:51:43,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-10-14 07:51:43,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:51:43,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:51:43,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:51:43,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:51:43,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:51:43,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:51:43,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:51:43,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:51:43,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:51:43,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:51:43,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:51:43,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:51:44,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2020-10-14 07:51:44,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:51:44,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:51:44,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:51:44,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:51:44,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:51:44,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:51:44,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:51:44,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:51:44,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:51:44,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:51:44,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:51:44,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:51:44,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2020-10-14 07:51:44,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:51:44,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:51:44,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:51:44,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:51:44,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:51:44,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:51:44,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:51:44,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:51:44,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:51:44,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:51:44,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:51:44,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:51:44,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:51:44,208 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [760528516] [2020-10-14 07:51:44,208 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:51:44,208 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-14 07:51:44,208 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667331987] [2020-10-14 07:51:44,209 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 07:51:44,210 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:51:44,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 07:51:44,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-14 07:51:44,211 INFO L87 Difference]: Start difference. First operand 732 states and 1266 transitions. Second operand 11 states. [2020-10-14 07:51:45,170 WARN L193 SmtUtils]: Spent 883.00 ms on a formula simplification that was a NOOP. DAG size: 359 [2020-10-14 07:51:52,039 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-14 07:51:52,558 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-14 07:51:53,075 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-14 07:51:53,509 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-14 07:51:54,000 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-14 07:51:54,228 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-14 07:51:54,932 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-14 07:51:55,189 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-14 07:51:56,507 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-14 07:51:56,930 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-14 07:51:58,195 WARN L193 SmtUtils]: Spent 993.00 ms on a formula simplification that was a NOOP. DAG size: 365 [2020-10-14 07:51:58,466 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-14 07:51:58,767 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-14 07:51:58,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:51:58,849 INFO L93 Difference]: Finished difference Result 1174 states and 1988 transitions. [2020-10-14 07:51:58,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-14 07:51:58,850 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 241 [2020-10-14 07:51:58,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:51:58,858 INFO L225 Difference]: With dead ends: 1174 [2020-10-14 07:51:58,859 INFO L226 Difference]: Without dead ends: 1000 [2020-10-14 07:51:58,861 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2020-10-14 07:51:58,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1000 states. [2020-10-14 07:51:58,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1000 to 895. [2020-10-14 07:51:58,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 895 states. [2020-10-14 07:51:59,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 895 states to 895 states and 1534 transitions. [2020-10-14 07:51:59,005 INFO L78 Accepts]: Start accepts. Automaton has 895 states and 1534 transitions. Word has length 241 [2020-10-14 07:51:59,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:51:59,006 INFO L479 AbstractCegarLoop]: Abstraction has 895 states and 1534 transitions. [2020-10-14 07:51:59,006 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 07:51:59,006 INFO L276 IsEmpty]: Start isEmpty. Operand 895 states and 1534 transitions. [2020-10-14 07:51:59,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-10-14 07:51:59,012 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:51:59,012 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:51:59,013 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 07:51:59,013 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:51:59,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:51:59,013 INFO L82 PathProgramCache]: Analyzing trace with hash -1633852864, now seen corresponding path program 1 times [2020-10-14 07:51:59,013 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:51:59,014 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [963017159] [2020-10-14 07:51:59,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:51:59,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:51:59,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:51:59,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:00,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:00,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:01,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:01,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:01,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:04,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:04,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 269 [2020-10-14 07:52:04,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 07:52:04,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5071 [2020-10-14 07:52:04,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:04,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:04,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:52:04,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 07:52:04,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 219 [2020-10-14 07:52:04,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:05,127 WARN L193 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 355 [2020-10-14 07:52:05,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:52:05,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:05,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:05,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:05,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:52:05,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:05,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 07:52:05,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:05,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:05,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:52:05,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:52:05,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:52:05,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:05,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:52:05,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:05,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:05,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:05,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 07:52:05,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:05,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 424 [2020-10-14 07:52:05,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:05,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:05,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:52:05,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:52:05,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 07:52:05,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:05,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-14 07:52:05,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:05,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:05,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:05,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:52:05,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:05,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:52:05,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:05,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:05,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:52:05,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:52:05,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:52:05,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:06,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-14 07:52:06,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:06,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:06,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:06,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:52:06,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:06,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:52:06,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:06,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:06,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:52:06,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:52:06,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:52:06,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:52:06,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-14 07:52:06,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:06,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:06,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:06,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:52:06,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:06,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 07:52:06,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:06,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:06,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:52:06,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:52:06,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:52:06,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:06,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-14 07:52:06,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:06,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:06,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:06,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 07:52:06,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:06,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 07:52:06,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:06,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:06,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:52:06,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:52:06,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:52:06,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:06,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 07:52:06,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:06,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:06,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:06,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:52:06,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:06,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 07:52:06,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:06,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:06,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:52:06,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:52:06,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:52:06,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:06,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 07:52:06,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:06,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:06,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:06,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:52:06,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:06,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:52:06,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:06,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:06,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:52:06,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:52:06,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:52:06,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:06,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-14 07:52:06,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:06,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:06,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:06,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:52:06,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:06,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:52:06,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:06,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:06,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:52:06,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:52:06,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:52:06,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:06,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:52:06,756 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [963017159] [2020-10-14 07:52:06,756 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:52:06,756 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-14 07:52:06,756 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993287238] [2020-10-14 07:52:06,757 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 07:52:06,757 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:52:06,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 07:52:06,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-14 07:52:06,758 INFO L87 Difference]: Start difference. First operand 895 states and 1534 transitions. Second operand 11 states. [2020-10-14 07:52:07,660 WARN L193 SmtUtils]: Spent 823.00 ms on a formula simplification that was a NOOP. DAG size: 359 [2020-10-14 07:52:08,517 WARN L193 SmtUtils]: Spent 812.00 ms on a formula simplification that was a NOOP. DAG size: 366 [2020-10-14 07:52:09,821 WARN L193 SmtUtils]: Spent 831.00 ms on a formula simplification that was a NOOP. DAG size: 369 [2020-10-14 07:52:11,417 WARN L193 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 368 DAG size of output: 366 [2020-10-14 07:52:27,411 WARN L193 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 361 [2020-10-14 07:52:27,840 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-14 07:52:28,211 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-14 07:52:28,830 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-14 07:52:29,173 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-14 07:52:29,597 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-14 07:52:30,411 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-14 07:52:30,821 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-14 07:52:31,256 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-14 07:52:32,161 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-14 07:52:32,764 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-14 07:52:33,270 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-14 07:52:33,507 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-14 07:52:34,330 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-14 07:52:34,928 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-14 07:52:35,176 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-14 07:52:36,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:52:36,736 INFO L93 Difference]: Finished difference Result 3595 states and 6149 transitions. [2020-10-14 07:52:36,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-14 07:52:36,737 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 245 [2020-10-14 07:52:36,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:52:36,751 INFO L225 Difference]: With dead ends: 3595 [2020-10-14 07:52:36,752 INFO L226 Difference]: Without dead ends: 2769 [2020-10-14 07:52:36,756 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=235, Invalid=695, Unknown=0, NotChecked=0, Total=930 [2020-10-14 07:52:36,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2769 states. [2020-10-14 07:52:37,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2769 to 2496. [2020-10-14 07:52:37,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2496 states. [2020-10-14 07:52:37,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 4267 transitions. [2020-10-14 07:52:37,156 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 4267 transitions. Word has length 245 [2020-10-14 07:52:37,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:52:37,157 INFO L479 AbstractCegarLoop]: Abstraction has 2496 states and 4267 transitions. [2020-10-14 07:52:37,157 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 07:52:37,157 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 4267 transitions. [2020-10-14 07:52:37,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-10-14 07:52:37,165 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:52:37,165 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:52:37,166 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 07:52:37,166 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:52:37,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:52:37,166 INFO L82 PathProgramCache]: Analyzing trace with hash 1441352221, now seen corresponding path program 1 times [2020-10-14 07:52:37,166 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:52:37,167 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [626413996] [2020-10-14 07:52:37,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:52:37,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:37,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:37,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:38,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:38,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:38,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:40,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:40,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:40,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:42,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:42,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 269 [2020-10-14 07:52:42,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 07:52:42,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-14 07:52:42,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:42,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:42,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:52:42,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 07:52:42,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-14 07:52:42,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:52:43,369 WARN L193 SmtUtils]: Spent 925.00 ms on a formula simplification that was a NOOP. DAG size: 355 [2020-10-14 07:52:43,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:52:43,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:43,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:43,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:43,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:52:43,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:43,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 07:52:43,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:43,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:43,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:52:43,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:52:43,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:52:43,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:52:43,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:52:43,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:43,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:43,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:43,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 07:52:43,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:43,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 374 [2020-10-14 07:52:43,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:43,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:43,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:52:43,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:52:43,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-14 07:52:43,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:52:44,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-14 07:52:44,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:44,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:44,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:44,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:52:44,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:44,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:52:44,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:44,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:44,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:52:44,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:52:44,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:52:44,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:52:44,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-14 07:52:44,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:44,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:44,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:44,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:52:44,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:44,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:52:44,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:44,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:44,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:52:44,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:52:44,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:52:44,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:52:44,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-14 07:52:44,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:44,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:44,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:44,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:52:44,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:44,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:52:44,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:44,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:44,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:52:44,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:52:44,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:52:44,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:52:44,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-14 07:52:44,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:44,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:44,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:44,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 07:52:44,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:44,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:52:44,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:44,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:44,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:52:44,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 07:52:44,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:52:44,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:52:44,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 07:52:44,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:44,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:44,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:44,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:52:44,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:44,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:52:44,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:44,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:44,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:52:44,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:52:44,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:52:44,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:52:44,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 07:52:44,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:44,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:44,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:44,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:52:44,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:44,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:52:44,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:44,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:44,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:52:44,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:52:44,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:52:44,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:52:44,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-14 07:52:44,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:52:44,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:52:44,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:52:44,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:52:44,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:52:44,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:52:44,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:52:44,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:52:44,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:52:44,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:52:44,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:52:44,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:52:44,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:52:44,441 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [626413996] [2020-10-14 07:52:44,441 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:52:44,441 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-14 07:52:44,441 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226135427] [2020-10-14 07:52:44,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 07:52:44,442 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:52:44,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 07:52:44,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-14 07:52:44,443 INFO L87 Difference]: Start difference. First operand 2496 states and 4267 transitions. Second operand 11 states. [2020-10-14 07:52:45,257 WARN L193 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 359 [2020-10-14 07:52:46,019 WARN L193 SmtUtils]: Spent 709.00 ms on a formula simplification that was a NOOP. DAG size: 357 [2020-10-14 07:52:47,102 WARN L193 SmtUtils]: Spent 809.00 ms on a formula simplification that was a NOOP. DAG size: 363 [2020-10-14 07:52:47,869 WARN L193 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 361 [2020-10-14 07:53:01,331 WARN L193 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 361 [2020-10-14 07:53:01,746 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-14 07:53:02,109 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-14 07:53:02,819 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-14 07:53:03,466 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-14 07:53:04,201 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-14 07:53:04,832 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-14 07:53:06,047 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-14 07:53:06,352 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-14 07:53:07,099 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-14 07:53:07,537 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-14 07:53:08,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:53:08,917 INFO L93 Difference]: Finished difference Result 8185 states and 13985 transitions. [2020-10-14 07:53:08,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-14 07:53:08,919 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 245 [2020-10-14 07:53:08,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:53:08,945 INFO L225 Difference]: With dead ends: 8185 [2020-10-14 07:53:08,946 INFO L226 Difference]: Without dead ends: 5778 [2020-10-14 07:53:08,953 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=165, Invalid=485, Unknown=0, NotChecked=0, Total=650 [2020-10-14 07:53:08,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5778 states. [2020-10-14 07:53:09,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5778 to 5263. [2020-10-14 07:53:09,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5263 states. [2020-10-14 07:53:09,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5263 states to 5263 states and 8950 transitions. [2020-10-14 07:53:09,853 INFO L78 Accepts]: Start accepts. Automaton has 5263 states and 8950 transitions. Word has length 245 [2020-10-14 07:53:09,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:53:09,854 INFO L479 AbstractCegarLoop]: Abstraction has 5263 states and 8950 transitions. [2020-10-14 07:53:09,854 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 07:53:09,854 INFO L276 IsEmpty]: Start isEmpty. Operand 5263 states and 8950 transitions. [2020-10-14 07:53:09,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-10-14 07:53:09,870 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:53:09,870 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:53:09,870 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 07:53:09,871 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:53:09,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:53:09,871 INFO L82 PathProgramCache]: Analyzing trace with hash -1683626066, now seen corresponding path program 1 times [2020-10-14 07:53:09,872 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:53:09,872 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [774452385] [2020-10-14 07:53:09,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:53:09,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:10,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:10,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:11,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:11,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:11,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:12,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:12,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:12,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:15,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:15,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 270 [2020-10-14 07:53:15,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 07:53:15,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-10-14 07:53:15,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:15,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:15,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:53:15,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 07:53:15,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 217 [2020-10-14 07:53:15,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:15,907 WARN L193 SmtUtils]: Spent 766.00 ms on a formula simplification that was a NOOP. DAG size: 355 [2020-10-14 07:53:15,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:53:15,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:15,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:15,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:15,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:53:15,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:15,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 07:53:15,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:15,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:15,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:53:15,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:15,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:53:15,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:15,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:53:15,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:16,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:16,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:16,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 07:53:16,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:16,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 350 [2020-10-14 07:53:16,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:16,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:16,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:53:16,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:16,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 07:53:16,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:16,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-14 07:53:16,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:16,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:16,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:16,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:53:16,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:16,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:53:16,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:16,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:16,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:16,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:16,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:53:16,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:16,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-14 07:53:16,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:16,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:16,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:16,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:53:16,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:16,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:53:16,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:16,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:16,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:16,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:16,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:53:16,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:16,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-14 07:53:16,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:16,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:16,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:16,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:53:16,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:16,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:53:16,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:16,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:16,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:16,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:53:16,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:53:16,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:53:16,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-14 07:53:16,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:16,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:16,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:16,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 07:53:16,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:16,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 07:53:16,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:16,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:16,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:53:16,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:53:16,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:53:16,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:16,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-10-14 07:53:16,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:16,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:16,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:16,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:53:16,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:16,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:53:16,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:16,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:16,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:53:16,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:53:16,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:53:16,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:17,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2020-10-14 07:53:17,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:17,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:17,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:17,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:53:17,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:17,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:53:17,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:17,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:17,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:53:17,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:53:17,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:53:17,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:17,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2020-10-14 07:53:17,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:17,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:17,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:53:17,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:53:17,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:53:17,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:53:17,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:53:17,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:53:17,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:53:17,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:53:17,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:53:17,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:53:17,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:53:17,192 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [774452385] [2020-10-14 07:53:17,192 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:53:17,192 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-14 07:53:17,192 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257940011] [2020-10-14 07:53:17,193 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 07:53:17,193 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:53:17,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 07:53:17,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-14 07:53:17,193 INFO L87 Difference]: Start difference. First operand 5263 states and 8950 transitions. Second operand 11 states. [2020-10-14 07:53:18,076 WARN L193 SmtUtils]: Spent 804.00 ms on a formula simplification that was a NOOP. DAG size: 359 [2020-10-14 07:53:19,045 WARN L193 SmtUtils]: Spent 923.00 ms on a formula simplification that was a NOOP. DAG size: 366 [2020-10-14 07:53:20,170 WARN L193 SmtUtils]: Spent 863.00 ms on a formula simplification that was a NOOP. DAG size: 369 [2020-10-14 07:53:21,857 WARN L193 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 368 DAG size of output: 366 [2020-10-14 07:53:41,647 WARN L193 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 361 [2020-10-14 07:53:42,167 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-14 07:53:42,505 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-14 07:53:43,220 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-14 07:53:43,629 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-14 07:53:44,124 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-14 07:53:45,178 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-14 07:53:45,564 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-14 07:53:46,137 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-14 07:53:47,071 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-14 07:53:48,312 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-14 07:53:48,639 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-14 07:53:48,957 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-14 07:53:50,093 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-14 07:53:50,468 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-14 07:53:50,839 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-14 07:53:53,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:53:53,104 INFO L93 Difference]: Finished difference Result 20768 states and 35252 transitions. [2020-10-14 07:53:53,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-14 07:53:53,105 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 246 [2020-10-14 07:53:53,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:53:53,171 INFO L225 Difference]: With dead ends: 20768 [2020-10-14 07:53:53,172 INFO L226 Difference]: Without dead ends: 15720 [2020-10-14 07:53:53,188 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=235, Invalid=695, Unknown=0, NotChecked=0, Total=930 [2020-10-14 07:53:53,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15720 states. [2020-10-14 07:53:55,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15720 to 14526. [2020-10-14 07:53:55,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14526 states. [2020-10-14 07:53:55,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14526 states to 14526 states and 24613 transitions. [2020-10-14 07:53:55,712 INFO L78 Accepts]: Start accepts. Automaton has 14526 states and 24613 transitions. Word has length 246 [2020-10-14 07:53:55,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:53:55,713 INFO L479 AbstractCegarLoop]: Abstraction has 14526 states and 24613 transitions. [2020-10-14 07:53:55,713 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 07:53:55,713 INFO L276 IsEmpty]: Start isEmpty. Operand 14526 states and 24613 transitions. [2020-10-14 07:53:55,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2020-10-14 07:53:55,752 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:53:55,752 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:53:55,752 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 07:53:55,752 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:53:55,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:53:55,753 INFO L82 PathProgramCache]: Analyzing trace with hash 1277579877, now seen corresponding path program 1 times [2020-10-14 07:53:55,753 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:53:55,753 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [972260609] [2020-10-14 07:53:55,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:53:55,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:53:56,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:56,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:56,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:56,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:57,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:53:58,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:00,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:00,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 271 [2020-10-14 07:54:00,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 07:54:00,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5060 [2020-10-14 07:54:00,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:00,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:00,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:54:00,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 07:54:00,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-14 07:54:00,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:01,866 WARN L193 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 355 [2020-10-14 07:54:01,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:54:01,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:01,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:01,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:01,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:54:01,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:01,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 07:54:01,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:01,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:01,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:01,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:01,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:01,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:01,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:54:01,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:02,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:02,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:02,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 07:54:02,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:02,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 349 [2020-10-14 07:54:02,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:02,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:02,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:54:02,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:02,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 07:54:02,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:02,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-14 07:54:02,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:02,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:02,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:02,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:54:02,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:02,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:54:02,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:02,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:02,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:02,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:02,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:54:02,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:02,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-14 07:54:02,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:02,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:02,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:02,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:54:02,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:02,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:54:02,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:02,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:02,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:02,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:02,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:54:02,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:02,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-14 07:54:02,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:02,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:02,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:02,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:54:02,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:02,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:54:02,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:02,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:02,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:02,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:54:02,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:54:02,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:02,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-14 07:54:02,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:02,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:02,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:02,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 07:54:02,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:02,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:54:02,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:02,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:02,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:54:02,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 07:54:02,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:54:02,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:02,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2020-10-14 07:54:02,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:02,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:02,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:02,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:54:02,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:02,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:54:02,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:02,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:02,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:02,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:54:02,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:02,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:02,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-10-14 07:54:02,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:02,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:02,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:02,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:54:02,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:02,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:54:02,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:02,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:02,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:02,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:54:02,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:02,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:54:02,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2020-10-14 07:54:02,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:54:02,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:54:02,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:54:02,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:54:02,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:54:02,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:54:02,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:54:02,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:54:02,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:54:02,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:54:02,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:54:02,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:54:02,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:54:02,906 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [972260609] [2020-10-14 07:54:02,906 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:54:02,906 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-14 07:54:02,906 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834697860] [2020-10-14 07:54:02,907 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 07:54:02,907 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:54:02,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 07:54:02,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-14 07:54:02,908 INFO L87 Difference]: Start difference. First operand 14526 states and 24613 transitions. Second operand 11 states. [2020-10-14 07:54:03,782 WARN L193 SmtUtils]: Spent 792.00 ms on a formula simplification that was a NOOP. DAG size: 359 [2020-10-14 07:54:04,638 WARN L193 SmtUtils]: Spent 812.00 ms on a formula simplification that was a NOOP. DAG size: 365 [2020-10-14 07:54:05,836 WARN L193 SmtUtils]: Spent 836.00 ms on a formula simplification that was a NOOP. DAG size: 369 [2020-10-14 07:54:07,490 WARN L193 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 367 DAG size of output: 363 [2020-10-14 07:54:31,675 WARN L193 SmtUtils]: Spent 834.00 ms on a formula simplification that was a NOOP. DAG size: 361 [2020-10-14 07:54:32,256 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-14 07:54:32,680 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-14 07:54:33,601 WARN L193 SmtUtils]: Spent 438.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-14 07:54:33,960 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-14 07:54:34,650 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-14 07:54:35,701 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-14 07:54:36,029 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-14 07:54:36,781 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-14 07:54:37,667 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-14 07:54:38,859 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-14 07:54:39,376 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-14 07:54:39,647 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-14 07:54:40,497 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-14 07:54:41,341 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-14 07:54:41,631 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-14 07:54:44,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:54:44,101 INFO L93 Difference]: Finished difference Result 59045 states and 99838 transitions. [2020-10-14 07:54:44,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-14 07:54:44,103 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 247 [2020-10-14 07:54:44,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:54:44,228 INFO L225 Difference]: With dead ends: 59045 [2020-10-14 07:54:44,228 INFO L226 Difference]: Without dead ends: 45168 [2020-10-14 07:54:44,266 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=235, Invalid=695, Unknown=0, NotChecked=0, Total=930 [2020-10-14 07:54:44,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45168 states.