/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 19:35:51,523 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 19:35:51,525 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 19:35:51,549 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 19:35:51,549 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 19:35:51,550 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 19:35:51,551 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 19:35:51,553 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 19:35:51,555 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 19:35:51,555 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 19:35:51,556 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 19:35:51,557 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 19:35:51,558 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 19:35:51,559 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 19:35:51,560 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 19:35:51,564 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 19:35:51,564 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 19:35:51,565 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 19:35:51,567 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 19:35:51,569 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 19:35:51,570 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 19:35:51,571 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 19:35:51,572 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 19:35:51,573 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 19:35:51,576 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 19:35:51,576 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 19:35:51,576 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 19:35:51,577 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 19:35:51,578 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 19:35:51,578 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 19:35:51,579 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 19:35:51,580 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 19:35:51,580 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 19:35:51,581 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 19:35:51,582 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 19:35:51,582 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 19:35:51,583 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 19:35:51,583 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 19:35:51,583 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 19:35:51,584 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 19:35:51,585 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 19:35:51,586 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-12 19:35:51,607 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 19:35:51,608 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 19:35:51,609 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 19:35:51,609 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 19:35:51,609 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 19:35:51,610 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 19:35:51,610 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 19:35:51,610 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 19:35:51,610 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 19:35:51,610 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 19:35:51,610 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 19:35:51,611 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 19:35:51,611 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 19:35:51,611 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 19:35:51,611 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 19:35:51,611 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 19:35:51,612 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 19:35:51,612 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 19:35:51,612 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 19:35:51,612 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 19:35:51,612 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 19:35:51,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 19:35:51,613 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 19:35:51,613 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 19:35:51,613 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 19:35:51,613 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 19:35:51,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 19:35:51,614 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 19:35:51,614 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 19:35:51,614 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 19:35:51,937 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 19:35:51,950 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 19:35:51,954 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 19:35:51,956 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 19:35:51,957 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 19:35:51,958 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2020-10-12 19:35:52,026 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/df795d3bf/6cf6b36edb5c4d628a4ab6e899e33495/FLAG6f84daed9 [2020-10-12 19:35:52,711 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 19:35:52,711 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2020-10-12 19:35:52,751 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/df795d3bf/6cf6b36edb5c4d628a4ab6e899e33495/FLAG6f84daed9 [2020-10-12 19:35:52,869 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/df795d3bf/6cf6b36edb5c4d628a4ab6e899e33495 [2020-10-12 19:35:52,877 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 19:35:52,879 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 19:35:52,880 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 19:35:52,880 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 19:35:52,883 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 19:35:52,885 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:35:52" (1/1) ... [2020-10-12 19:35:52,888 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f8e2c60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:35:52, skipping insertion in model container [2020-10-12 19:35:52,888 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:35:52" (1/1) ... [2020-10-12 19:35:52,896 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 19:35:52,996 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 19:35:53,948 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 19:35:53,958 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 19:35:54,247 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 19:35:54,278 INFO L208 MainTranslator]: Completed translation [2020-10-12 19:35:54,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:35:54 WrapperNode [2020-10-12 19:35:54,279 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 19:35:54,280 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 19:35:54,280 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 19:35:54,280 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 19:35:54,302 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:35:54" (1/1) ... [2020-10-12 19:35:54,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:35:54" (1/1) ... [2020-10-12 19:35:54,337 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:35:54" (1/1) ... [2020-10-12 19:35:54,338 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:35:54" (1/1) ... [2020-10-12 19:35:54,411 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:35:54" (1/1) ... [2020-10-12 19:35:54,434 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:35:54" (1/1) ... [2020-10-12 19:35:54,450 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:35:54" (1/1) ... [2020-10-12 19:35:54,483 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 19:35:54,483 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 19:35:54,484 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 19:35:54,484 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 19:35:54,486 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:35:54" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 19:35:54,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 19:35:54,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 19:35:54,581 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-12 19:35:54,582 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 19:35:54,582 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 19:35:54,582 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-12 19:35:54,582 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-12 19:35:54,583 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-12 19:35:54,583 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 19:35:54,583 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-12 19:35:54,583 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-12 19:35:54,583 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-12 19:35:54,583 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-12 19:35:54,584 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-12 19:35:54,584 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-12 19:35:54,584 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-12 19:35:54,584 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-12 19:35:54,584 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-12 19:35:54,585 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-12 19:35:54,585 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 19:35:54,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 19:35:54,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 19:35:56,936 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 19:35:56,939 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-12 19:35:56,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:35:56 BoogieIcfgContainer [2020-10-12 19:35:56,952 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 19:35:56,954 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 19:35:56,954 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 19:35:56,959 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 19:35:56,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 07:35:52" (1/3) ... [2020-10-12 19:35:56,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4781e385 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:35:56, skipping insertion in model container [2020-10-12 19:35:56,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:35:54" (2/3) ... [2020-10-12 19:35:56,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4781e385 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:35:56, skipping insertion in model container [2020-10-12 19:35:56,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:35:56" (3/3) ... [2020-10-12 19:35:56,963 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2020-10-12 19:35:56,975 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 19:35:56,989 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2020-10-12 19:35:57,004 INFO L251 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2020-10-12 19:35:57,039 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 19:35:57,039 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 19:35:57,039 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 19:35:57,040 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 19:35:57,040 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 19:35:57,040 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 19:35:57,040 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 19:35:57,040 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 19:35:57,084 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states. [2020-10-12 19:35:57,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-12 19:35:57,117 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:35:57,118 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] [2020-10-12 19:35:57,124 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:35:57,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:35:57,130 INFO L82 PathProgramCache]: Analyzing trace with hash 1881396577, now seen corresponding path program 1 times [2020-10-12 19:35:57,140 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:35:57,140 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1356126259] [2020-10-12 19:35:57,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:35:57,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:35:57,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:35:57,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:35:57,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:35:58,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:35:58,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:35:58,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:35:59,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:00,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:02,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:36:02,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 19:36:02,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 19:36:02,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-12 19:36:02,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:36:02,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 19:36:02,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 19:36:02,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-12 19:36:02,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 19:36:03,428 WARN L193 SmtUtils]: Spent 638.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-12 19:36:03,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:36:03,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:36:03,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:03,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:36:03,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:36:03,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:36:03,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-12 19:36:03,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:36:03,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:36:03,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:36:03,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:36:03,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:36:03,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:36:03,550 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1356126259] [2020-10-12 19:36:03,552 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:36:03,553 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 19:36:03,554 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286554113] [2020-10-12 19:36:03,559 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 19:36:03,560 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:36:03,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 19:36:03,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-12 19:36:03,578 INFO L87 Difference]: Start difference. First operand 634 states. Second operand 7 states. [2020-10-12 19:36:04,337 WARN L193 SmtUtils]: Spent 581.00 ms on a formula simplification that was a NOOP. DAG size: 326 [2020-10-12 19:36:11,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:36:11,664 INFO L93 Difference]: Finished difference Result 2118 states and 3495 transitions. [2020-10-12 19:36:11,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 19:36:11,665 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 76 [2020-10-12 19:36:11,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:36:11,710 INFO L225 Difference]: With dead ends: 2118 [2020-10-12 19:36:11,711 INFO L226 Difference]: Without dead ends: 1700 [2020-10-12 19:36:11,723 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-12 19:36:11,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1700 states. [2020-10-12 19:36:11,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1700 to 1018. [2020-10-12 19:36:11,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1018 states. [2020-10-12 19:36:11,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1018 states to 1018 states and 1372 transitions. [2020-10-12 19:36:11,885 INFO L78 Accepts]: Start accepts. Automaton has 1018 states and 1372 transitions. Word has length 76 [2020-10-12 19:36:11,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:36:11,886 INFO L479 AbstractCegarLoop]: Abstraction has 1018 states and 1372 transitions. [2020-10-12 19:36:11,886 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 19:36:11,886 INFO L276 IsEmpty]: Start isEmpty. Operand 1018 states and 1372 transitions. [2020-10-12 19:36:11,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-12 19:36:11,895 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:36:11,895 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] [2020-10-12 19:36:11,896 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 19:36:11,896 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:36:11,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:36:11,897 INFO L82 PathProgramCache]: Analyzing trace with hash -99657529, now seen corresponding path program 1 times [2020-10-12 19:36:11,897 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:36:11,898 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [150824771] [2020-10-12 19:36:11,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:36:11,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:36:11,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:12,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:12,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:12,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:12,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:12,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:12,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:16,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:36:16,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-12 19:36:16,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 19:36:16,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 19:36:16,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:36:16,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 19:36:16,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-12 19:36:16,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-12 19:36:16,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:36:17,557 WARN L193 SmtUtils]: Spent 494.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-12 19:36:17,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:36:17,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:36:17,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:17,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:36:17,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:36:17,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:36:17,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 19:36:17,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:36:17,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:36:17,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:36:17,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:36:17,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:36:17,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:36:17,613 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [150824771] [2020-10-12 19:36:17,613 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:36:17,613 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 19:36:17,614 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489020829] [2020-10-12 19:36:17,615 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 19:36:17,616 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:36:17,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 19:36:17,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-12 19:36:17,617 INFO L87 Difference]: Start difference. First operand 1018 states and 1372 transitions. Second operand 7 states. [2020-10-12 19:36:18,173 WARN L193 SmtUtils]: Spent 489.00 ms on a formula simplification that was a NOOP. DAG size: 326 [2020-10-12 19:36:22,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:36:22,088 INFO L93 Difference]: Finished difference Result 3022 states and 4208 transitions. [2020-10-12 19:36:22,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 19:36:22,089 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 77 [2020-10-12 19:36:22,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:36:22,105 INFO L225 Difference]: With dead ends: 3022 [2020-10-12 19:36:22,105 INFO L226 Difference]: Without dead ends: 2431 [2020-10-12 19:36:22,108 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-12 19:36:22,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2431 states. [2020-10-12 19:36:22,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2431 to 1280. [2020-10-12 19:36:22,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1280 states. [2020-10-12 19:36:22,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1280 states to 1280 states and 1772 transitions. [2020-10-12 19:36:22,182 INFO L78 Accepts]: Start accepts. Automaton has 1280 states and 1772 transitions. Word has length 77 [2020-10-12 19:36:22,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:36:22,183 INFO L479 AbstractCegarLoop]: Abstraction has 1280 states and 1772 transitions. [2020-10-12 19:36:22,183 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 19:36:22,183 INFO L276 IsEmpty]: Start isEmpty. Operand 1280 states and 1772 transitions. [2020-10-12 19:36:22,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-12 19:36:22,186 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:36:22,186 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] [2020-10-12 19:36:22,186 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 19:36:22,187 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:36:22,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:36:22,187 INFO L82 PathProgramCache]: Analyzing trace with hash -270827501, now seen corresponding path program 1 times [2020-10-12 19:36:22,187 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:36:22,188 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1963399620] [2020-10-12 19:36:22,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:36:22,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:36:22,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:22,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:22,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:22,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:23,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:23,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:23,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:24,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:24,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:25,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:26,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:26,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:27,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:36:27,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-12 19:36:27,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-12 19:36:27,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-12 19:36:27,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:36:27,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 19:36:27,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:36:27,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-12 19:36:27,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:36:27,997 WARN L193 SmtUtils]: Spent 482.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-12 19:36:27,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:36:28,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:36:28,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:28,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:36:28,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:36:28,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:36:28,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 19:36:28,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:36:28,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:36:28,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:36:28,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:36:28,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:36:28,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:36:28,064 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1963399620] [2020-10-12 19:36:28,065 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:36:28,065 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 19:36:28,065 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094460748] [2020-10-12 19:36:28,066 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 19:36:28,066 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:36:28,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 19:36:28,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-10-12 19:36:28,067 INFO L87 Difference]: Start difference. First operand 1280 states and 1772 transitions. Second operand 12 states. [2020-10-12 19:36:28,704 WARN L193 SmtUtils]: Spent 545.00 ms on a formula simplification that was a NOOP. DAG size: 332 [2020-10-12 19:36:35,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:36:35,087 INFO L93 Difference]: Finished difference Result 4171 states and 5776 transitions. [2020-10-12 19:36:35,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-12 19:36:35,088 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 77 [2020-10-12 19:36:35,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:36:35,108 INFO L225 Difference]: With dead ends: 4171 [2020-10-12 19:36:35,108 INFO L226 Difference]: Without dead ends: 3745 [2020-10-12 19:36:35,112 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=232, Invalid=698, Unknown=0, NotChecked=0, Total=930 [2020-10-12 19:36:35,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3745 states. [2020-10-12 19:36:35,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3745 to 1784. [2020-10-12 19:36:35,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1784 states. [2020-10-12 19:36:35,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2530 transitions. [2020-10-12 19:36:35,258 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2530 transitions. Word has length 77 [2020-10-12 19:36:35,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:36:35,259 INFO L479 AbstractCegarLoop]: Abstraction has 1784 states and 2530 transitions. [2020-10-12 19:36:35,259 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 19:36:35,259 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2530 transitions. [2020-10-12 19:36:35,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-12 19:36:35,262 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:36:35,262 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] [2020-10-12 19:36:35,262 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 19:36:35,263 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:36:35,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:36:35,263 INFO L82 PathProgramCache]: Analyzing trace with hash -1732093495, now seen corresponding path program 1 times [2020-10-12 19:36:35,263 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:36:35,264 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [134952336] [2020-10-12 19:36:35,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:36:35,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:36:35,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:35,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:35,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:35,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:35,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:35,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:37,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:37,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:40,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:36:40,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 19:36:40,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 19:36:40,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-12 19:36:40,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:36:40,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 19:36:40,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:36:40,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-12 19:36:40,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:36:41,132 WARN L193 SmtUtils]: Spent 484.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-12 19:36:41,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:36:41,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:36:41,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:41,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:36:41,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:36:41,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:36:41,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 19:36:41,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:36:41,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:36:41,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:36:41,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:36:41,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:36:41,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:36:41,220 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [134952336] [2020-10-12 19:36:41,220 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:36:41,220 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 19:36:41,221 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173211138] [2020-10-12 19:36:41,221 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 19:36:41,221 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:36:41,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 19:36:41,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-10-12 19:36:41,222 INFO L87 Difference]: Start difference. First operand 1784 states and 2530 transitions. Second operand 10 states. [2020-10-12 19:36:41,984 WARN L193 SmtUtils]: Spent 636.00 ms on a formula simplification that was a NOOP. DAG size: 363 [2020-10-12 19:36:50,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:36:50,302 INFO L93 Difference]: Finished difference Result 10016 states and 14913 transitions. [2020-10-12 19:36:50,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-12 19:36:50,303 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 78 [2020-10-12 19:36:50,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:36:50,340 INFO L225 Difference]: With dead ends: 10016 [2020-10-12 19:36:50,341 INFO L226 Difference]: Without dead ends: 8620 [2020-10-12 19:36:50,347 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=144, Invalid=456, Unknown=0, NotChecked=0, Total=600 [2020-10-12 19:36:50,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8620 states. [2020-10-12 19:36:50,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8620 to 2391. [2020-10-12 19:36:50,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2391 states. [2020-10-12 19:36:50,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2391 states to 2391 states and 3446 transitions. [2020-10-12 19:36:50,591 INFO L78 Accepts]: Start accepts. Automaton has 2391 states and 3446 transitions. Word has length 78 [2020-10-12 19:36:50,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:36:50,591 INFO L479 AbstractCegarLoop]: Abstraction has 2391 states and 3446 transitions. [2020-10-12 19:36:50,591 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 19:36:50,592 INFO L276 IsEmpty]: Start isEmpty. Operand 2391 states and 3446 transitions. [2020-10-12 19:36:50,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-12 19:36:50,595 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:36:50,596 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] [2020-10-12 19:36:50,596 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 19:36:50,596 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:36:50,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:36:50,597 INFO L82 PathProgramCache]: Analyzing trace with hash -115356091, now seen corresponding path program 1 times [2020-10-12 19:36:50,597 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:36:50,597 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1490647040] [2020-10-12 19:36:50,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:36:50,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:36:50,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:50,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:50,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:50,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:51,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:51,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:51,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:54,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:54,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:54,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:55,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:55,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:55,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:55,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:36:55,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-12 19:36:55,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-12 19:36:55,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-12 19:36:55,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:36:55,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 19:36:55,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 19:36:55,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-12 19:36:55,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:36:56,590 WARN L193 SmtUtils]: Spent 674.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-12 19:36:56,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:36:56,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:36:56,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:56,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:36:56,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:36:56,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:36:56,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-12 19:36:56,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:36:56,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:36:56,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:36:56,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 19:36:56,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:36:56,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:36:56,693 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1490647040] [2020-10-12 19:36:56,694 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:36:56,694 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 19:36:56,694 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200099550] [2020-10-12 19:36:56,695 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 19:36:56,695 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:36:56,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 19:36:56,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-10-12 19:36:56,700 INFO L87 Difference]: Start difference. First operand 2391 states and 3446 transitions. Second operand 12 states. [2020-10-12 19:36:57,392 WARN L193 SmtUtils]: Spent 593.00 ms on a formula simplification that was a NOOP. DAG size: 338 [2020-10-12 19:37:02,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:37:02,358 INFO L93 Difference]: Finished difference Result 4599 states and 6639 transitions. [2020-10-12 19:37:02,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-12 19:37:02,359 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 79 [2020-10-12 19:37:02,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:37:02,374 INFO L225 Difference]: With dead ends: 4599 [2020-10-12 19:37:02,374 INFO L226 Difference]: Without dead ends: 3858 [2020-10-12 19:37:02,377 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=112, Invalid=350, Unknown=0, NotChecked=0, Total=462 [2020-10-12 19:37:02,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3858 states. [2020-10-12 19:37:02,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3858 to 1706. [2020-10-12 19:37:02,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1706 states. [2020-10-12 19:37:02,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1706 states to 1706 states and 2440 transitions. [2020-10-12 19:37:02,586 INFO L78 Accepts]: Start accepts. Automaton has 1706 states and 2440 transitions. Word has length 79 [2020-10-12 19:37:02,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:37:02,587 INFO L479 AbstractCegarLoop]: Abstraction has 1706 states and 2440 transitions. [2020-10-12 19:37:02,587 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 19:37:02,587 INFO L276 IsEmpty]: Start isEmpty. Operand 1706 states and 2440 transitions. [2020-10-12 19:37:02,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-12 19:37:02,590 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:37:02,590 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] [2020-10-12 19:37:02,590 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 19:37:02,591 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:37:02,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:37:02,591 INFO L82 PathProgramCache]: Analyzing trace with hash -391435831, now seen corresponding path program 1 times [2020-10-12 19:37:02,591 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:37:02,592 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1436939118] [2020-10-12 19:37:02,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:37:02,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:37:02,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:02,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:02,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:02,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:03,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:03,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:03,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:03,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:03,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:04,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:04,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:04,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:06,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:06,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:07,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:07,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:37:07,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-12 19:37:07,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-12 19:37:07,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-12 19:37:07,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:37:07,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 19:37:07,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:37:07,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-12 19:37:07,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:37:08,382 WARN L193 SmtUtils]: Spent 549.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-12 19:37:08,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:37:08,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:37:08,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:08,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:37:08,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:37:08,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:37:08,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 19:37:08,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:37:08,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:37:08,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:37:08,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:37:08,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:37:08,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:37:08,445 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1436939118] [2020-10-12 19:37:08,446 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:37:08,446 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 19:37:08,446 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750435151] [2020-10-12 19:37:08,447 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 19:37:08,447 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:37:08,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 19:37:08,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-12 19:37:08,447 INFO L87 Difference]: Start difference. First operand 1706 states and 2440 transitions. Second operand 10 states. [2020-10-12 19:37:09,086 WARN L193 SmtUtils]: Spent 556.00 ms on a formula simplification that was a NOOP. DAG size: 332 [2020-10-12 19:37:13,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:37:13,033 INFO L93 Difference]: Finished difference Result 3977 states and 5849 transitions. [2020-10-12 19:37:13,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 19:37:13,034 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 79 [2020-10-12 19:37:13,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:37:13,045 INFO L225 Difference]: With dead ends: 3977 [2020-10-12 19:37:13,046 INFO L226 Difference]: Without dead ends: 3325 [2020-10-12 19:37:13,048 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=93, Invalid=287, Unknown=0, NotChecked=0, Total=380 [2020-10-12 19:37:13,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3325 states. [2020-10-12 19:37:13,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3325 to 1706. [2020-10-12 19:37:13,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1706 states. [2020-10-12 19:37:13,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1706 states to 1706 states and 2439 transitions. [2020-10-12 19:37:13,288 INFO L78 Accepts]: Start accepts. Automaton has 1706 states and 2439 transitions. Word has length 79 [2020-10-12 19:37:13,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:37:13,289 INFO L479 AbstractCegarLoop]: Abstraction has 1706 states and 2439 transitions. [2020-10-12 19:37:13,289 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 19:37:13,289 INFO L276 IsEmpty]: Start isEmpty. Operand 1706 states and 2439 transitions. [2020-10-12 19:37:13,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-12 19:37:13,293 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:37:13,294 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] [2020-10-12 19:37:13,294 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 19:37:13,295 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:37:13,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:37:13,295 INFO L82 PathProgramCache]: Analyzing trace with hash 1832381840, now seen corresponding path program 1 times [2020-10-12 19:37:13,296 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:37:13,298 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [168277951] [2020-10-12 19:37:13,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:37:13,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:37:13,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:13,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:13,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:13,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:14,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:14,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:14,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:14,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:14,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:14,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:14,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:15,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:17,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:17,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:18,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:18,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:18,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:37:18,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-12 19:37:18,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-12 19:37:18,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-12 19:37:18,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:37:18,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 19:37:18,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:37:18,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-12 19:37:18,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:37:19,072 WARN L193 SmtUtils]: Spent 498.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-12 19:37:19,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:37:19,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:37:19,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:19,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:37:19,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:37:19,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:37:19,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 19:37:19,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:37:19,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:37:19,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:37:19,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:37:19,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:37:19,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:37:19,125 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [168277951] [2020-10-12 19:37:19,125 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:37:19,125 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 19:37:19,125 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288920529] [2020-10-12 19:37:19,126 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 19:37:19,126 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:37:19,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 19:37:19,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-10-12 19:37:19,126 INFO L87 Difference]: Start difference. First operand 1706 states and 2439 transitions. Second operand 11 states. [2020-10-12 19:37:19,746 WARN L193 SmtUtils]: Spent 546.00 ms on a formula simplification that was a NOOP. DAG size: 334 [2020-10-12 19:37:24,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:37:24,552 INFO L93 Difference]: Finished difference Result 4209 states and 6103 transitions. [2020-10-12 19:37:24,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 19:37:24,553 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 79 [2020-10-12 19:37:24,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:37:24,569 INFO L225 Difference]: With dead ends: 4209 [2020-10-12 19:37:24,569 INFO L226 Difference]: Without dead ends: 3487 [2020-10-12 19:37:24,572 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=198, Invalid=672, Unknown=0, NotChecked=0, Total=870 [2020-10-12 19:37:24,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3487 states. [2020-10-12 19:37:24,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3487 to 1714. [2020-10-12 19:37:24,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1714 states. [2020-10-12 19:37:24,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1714 states to 1714 states and 2450 transitions. [2020-10-12 19:37:24,783 INFO L78 Accepts]: Start accepts. Automaton has 1714 states and 2450 transitions. Word has length 79 [2020-10-12 19:37:24,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:37:24,784 INFO L479 AbstractCegarLoop]: Abstraction has 1714 states and 2450 transitions. [2020-10-12 19:37:24,784 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 19:37:24,784 INFO L276 IsEmpty]: Start isEmpty. Operand 1714 states and 2450 transitions. [2020-10-12 19:37:24,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-12 19:37:24,787 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:37:24,787 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] [2020-10-12 19:37:24,787 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 19:37:24,788 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:37:24,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:37:24,788 INFO L82 PathProgramCache]: Analyzing trace with hash -26659925, now seen corresponding path program 1 times [2020-10-12 19:37:24,788 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:37:24,789 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1281707054] [2020-10-12 19:37:24,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:37:24,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:37:24,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:24,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:24,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:24,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:26,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:26,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:27,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:29,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:37:29,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-12 19:37:29,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 19:37:29,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-12 19:37:29,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:37:29,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 19:37:29,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:37:29,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-12 19:37:29,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0