/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 03:34:23,242 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 03:34:23,248 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 03:34:23,277 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 03:34:23,277 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 03:34:23,278 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 03:34:23,280 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 03:34:23,281 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 03:34:23,283 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 03:34:23,284 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 03:34:23,285 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 03:34:23,286 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 03:34:23,286 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 03:34:23,287 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 03:34:23,288 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 03:34:23,289 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 03:34:23,290 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 03:34:23,291 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 03:34:23,293 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 03:34:23,295 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 03:34:23,296 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 03:34:23,297 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 03:34:23,299 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 03:34:23,299 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 03:34:23,302 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 03:34:23,302 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 03:34:23,303 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 03:34:23,304 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 03:34:23,304 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 03:34:23,305 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 03:34:23,305 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 03:34:23,306 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 03:34:23,307 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 03:34:23,307 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 03:34:23,308 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 03:34:23,308 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 03:34:23,309 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 03:34:23,309 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 03:34:23,309 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 03:34:23,310 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 03:34:23,311 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 03:34:23,312 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 [2020-10-15 03:34:23,335 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 03:34:23,335 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 03:34:23,337 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 03:34:23,337 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 03:34:23,337 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 03:34:23,337 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 03:34:23,338 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 03:34:23,338 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 03:34:23,338 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 03:34:23,338 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 03:34:23,338 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 03:34:23,338 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 03:34:23,339 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 03:34:23,339 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 03:34:23,339 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 03:34:23,339 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 03:34:23,339 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 03:34:23,340 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 03:34:23,340 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 03:34:23,340 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 03:34:23,340 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 03:34:23,340 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 03:34:23,341 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 03:34:23,341 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 03:34:23,341 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 03:34:23,341 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 03:34:23,341 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 03:34:23,342 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 03:34:23,342 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 03:34:23,342 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 03:34:23,649 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 03:34:23,661 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 03:34:23,665 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 03:34:23,666 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 03:34:23,666 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 03:34:23,667 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2020-10-15 03:34:23,726 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/430b6b2a5/e802316e10b34762b1c4da2fbdd48f99/FLAG41d76d9c0 [2020-10-15 03:34:24,748 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 03:34:24,749 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2020-10-15 03:34:24,810 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/430b6b2a5/e802316e10b34762b1c4da2fbdd48f99/FLAG41d76d9c0 [2020-10-15 03:34:25,059 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/430b6b2a5/e802316e10b34762b1c4da2fbdd48f99 [2020-10-15 03:34:25,069 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 03:34:25,071 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 03:34:25,072 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 03:34:25,072 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 03:34:25,076 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 03:34:25,077 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:34:25" (1/1) ... [2020-10-15 03:34:25,080 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@368a0f4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:34:25, skipping insertion in model container [2020-10-15 03:34:25,080 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:34:25" (1/1) ... [2020-10-15 03:34:25,089 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 03:34:25,499 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 03:34:28,764 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 03:34:28,778 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 03:34:30,723 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 03:34:30,811 INFO L208 MainTranslator]: Completed translation [2020-10-15 03:34:30,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:34:30 WrapperNode [2020-10-15 03:34:30,812 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 03:34:30,813 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 03:34:30,813 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 03:34:30,813 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 03:34:30,835 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:34:30" (1/1) ... [2020-10-15 03:34:30,836 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:34:30" (1/1) ... [2020-10-15 03:34:30,946 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:34:30" (1/1) ... [2020-10-15 03:34:30,946 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:34:30" (1/1) ... [2020-10-15 03:34:31,131 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:34:30" (1/1) ... [2020-10-15 03:34:31,252 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:34:30" (1/1) ... [2020-10-15 03:34:31,289 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:34:30" (1/1) ... [2020-10-15 03:34:31,352 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 03:34:31,353 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 03:34:31,353 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 03:34:31,354 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 03:34:31,355 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:34:30" (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 [2020-10-15 03:34:31,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 03:34:31,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 03:34:31,446 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 03:34:31,446 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 03:34:31,447 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 03:34:31,448 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 03:34:31,448 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 03:34:31,449 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-15 03:34:31,449 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-15 03:34:31,450 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 03:34:31,450 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 03:34:31,450 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-15 03:34:31,451 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-15 03:34:31,451 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-15 03:34:31,451 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-15 03:34:31,452 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-15 03:34:31,453 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-15 03:34:31,453 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-15 03:34:31,454 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2020-10-15 03:34:31,454 INFO L130 BoogieDeclarations]: Found specification of procedure node7 [2020-10-15 03:34:31,454 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-15 03:34:31,454 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-15 03:34:31,455 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 03:34:31,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 03:34:31,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 03:34:45,102 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 03:34:45,103 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-15 03:34:45,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:34:45 BoogieIcfgContainer [2020-10-15 03:34:45,130 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 03:34:45,133 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 03:34:45,133 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 03:34:45,137 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 03:34:45,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:34:25" (1/3) ... [2020-10-15 03:34:45,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7788e330 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:34:45, skipping insertion in model container [2020-10-15 03:34:45,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:34:30" (2/3) ... [2020-10-15 03:34:45,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7788e330 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:34:45, skipping insertion in model container [2020-10-15 03:34:45,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:34:45" (3/3) ... [2020-10-15 03:34:45,142 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2020-10-15 03:34:45,154 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 03:34:45,171 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 29 error locations. [2020-10-15 03:34:45,188 INFO L251 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2020-10-15 03:34:45,245 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 03:34:45,245 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 03:34:45,245 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 03:34:45,245 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 03:34:45,245 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 03:34:45,246 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 03:34:45,246 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 03:34:45,246 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 03:34:45,353 INFO L276 IsEmpty]: Start isEmpty. Operand 5028 states. [2020-10-15 03:34:45,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-15 03:34:45,405 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:34:45,406 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:34:45,407 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr28ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr26ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr24ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr22ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr25ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr27ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION, mainErr23ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:34:45,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:34:45,414 INFO L82 PathProgramCache]: Analyzing trace with hash 1428930151, now seen corresponding path program 1 times [2020-10-15 03:34:45,424 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:34:45,424 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [958410764] [2020-10-15 03:34:45,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:34:46,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:34:46,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:34:46,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:34:46,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:34:46,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:34:47,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:34:47,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:34:48,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:34:49,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:34:51,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:34:51,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-15 03:34:51,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 03:34:51,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5050 [2020-10-15 03:34:51,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:34:51,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:34:51,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:34:51,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:34:51,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-15 03:34:51,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-15 03:34:54,839 WARN L193 SmtUtils]: Spent 3.17 s on a formula simplification that was a NOOP. DAG size: 745 [2020-10-15 03:34:54,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:34:54,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:34:54,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:34:55,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:34:55,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:34:55,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:34:55,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-15 03:34:55,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:34:55,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:34:55,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:34:55,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:34:55,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:34:55,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:34:55,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:34:55,128 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [958410764] [2020-10-15 03:34:55,130 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:34:55,131 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:34:55,131 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179725064] [2020-10-15 03:34:55,138 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:34:55,138 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:34:55,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:34:55,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:34:55,156 INFO L87 Difference]: Start difference. First operand 5028 states. Second operand 6 states. [2020-10-15 03:34:58,306 WARN L193 SmtUtils]: Spent 2.97 s on a formula simplification that was a NOOP. DAG size: 754 [2020-10-15 03:35:37,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:35:37,102 INFO L93 Difference]: Finished difference Result 6277 states and 11083 transitions. [2020-10-15 03:35:37,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 03:35:37,105 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 105 [2020-10-15 03:35:37,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:35:37,153 INFO L225 Difference]: With dead ends: 6277 [2020-10-15 03:35:37,153 INFO L226 Difference]: Without dead ends: 3802 [2020-10-15 03:35:37,166 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:35:37,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3802 states. [2020-10-15 03:35:37,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3802 to 3662. [2020-10-15 03:35:37,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3662 states. [2020-10-15 03:35:37,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3662 states to 3662 states and 4867 transitions. [2020-10-15 03:35:37,432 INFO L78 Accepts]: Start accepts. Automaton has 3662 states and 4867 transitions. Word has length 105 [2020-10-15 03:35:37,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:35:37,434 INFO L479 AbstractCegarLoop]: Abstraction has 3662 states and 4867 transitions. [2020-10-15 03:35:37,434 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:35:37,434 INFO L276 IsEmpty]: Start isEmpty. Operand 3662 states and 4867 transitions. [2020-10-15 03:35:37,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-15 03:35:37,450 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:35:37,450 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:35:37,451 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 03:35:37,452 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr28ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr26ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr24ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr22ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr25ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr27ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION, mainErr23ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:35:37,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:35:37,457 INFO L82 PathProgramCache]: Analyzing trace with hash -287831886, now seen corresponding path program 1 times [2020-10-15 03:35:37,458 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:35:37,459 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [429690944] [2020-10-15 03:35:37,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:35:37,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:35:37,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:35:37,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:35:37,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:35:38,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:35:38,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:35:38,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:35:39,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:35:39,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:35:42,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:35:42,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-15 03:35:42,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 03:35:42,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-15 03:35:42,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:35:42,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:35:42,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:35:42,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:35:42,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-15 03:35:42,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:35:45,597 WARN L193 SmtUtils]: Spent 2.82 s on a formula simplification that was a NOOP. DAG size: 745 [2020-10-15 03:35:45,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:35:45,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:35:45,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:35:45,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:35:45,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:35:45,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:35:45,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-15 03:35:45,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:35:45,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:35:45,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:35:45,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:35:45,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:35:45,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:35:45,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:35:45,811 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [429690944] [2020-10-15 03:35:45,811 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:35:45,811 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:35:45,811 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667467931] [2020-10-15 03:35:45,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:35:45,813 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:35:45,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:35:45,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:35:45,814 INFO L87 Difference]: Start difference. First operand 3662 states and 4867 transitions. Second operand 6 states. [2020-10-15 03:35:48,833 WARN L193 SmtUtils]: Spent 2.88 s on a formula simplification that was a NOOP. DAG size: 754 [2020-10-15 03:36:09,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:36:09,810 INFO L93 Difference]: Finished difference Result 5517 states and 7416 transitions. [2020-10-15 03:36:09,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 03:36:09,813 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 105 [2020-10-15 03:36:09,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:36:09,835 INFO L225 Difference]: With dead ends: 5517 [2020-10-15 03:36:09,835 INFO L226 Difference]: Without dead ends: 3889 [2020-10-15 03:36:09,840 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:36:09,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3889 states. [2020-10-15 03:36:09,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3889 to 3749. [2020-10-15 03:36:09,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3749 states. [2020-10-15 03:36:09,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3749 states to 3749 states and 5162 transitions. [2020-10-15 03:36:09,996 INFO L78 Accepts]: Start accepts. Automaton has 3749 states and 5162 transitions. Word has length 105 [2020-10-15 03:36:09,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:36:09,997 INFO L479 AbstractCegarLoop]: Abstraction has 3749 states and 5162 transitions. [2020-10-15 03:36:09,997 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:36:09,997 INFO L276 IsEmpty]: Start isEmpty. Operand 3749 states and 5162 transitions. [2020-10-15 03:36:10,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-15 03:36:10,006 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:36:10,006 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:36:10,006 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 03:36:10,007 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr28ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr26ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr24ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr22ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr25ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr27ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION, mainErr23ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:36:10,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:36:10,007 INFO L82 PathProgramCache]: Analyzing trace with hash -957026175, now seen corresponding path program 1 times [2020-10-15 03:36:10,007 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:36:10,008 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1920592616] [2020-10-15 03:36:10,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:36:10,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:36:10,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:36:10,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:36:10,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:36:10,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:36:10,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:36:11,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:36:11,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:36:11,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:36:15,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:36:15,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-15 03:36:15,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 03:36:15,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-15 03:36:15,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:36:15,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:36:15,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:36:15,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:36:15,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-15 03:36:15,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:36:18,424 WARN L193 SmtUtils]: Spent 3.06 s on a formula simplification that was a NOOP. DAG size: 745 [2020-10-15 03:36:18,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:36:18,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:36:18,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:36:18,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:36:18,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:36:18,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:36:18,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-15 03:36:18,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:36:18,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:36:18,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:36:18,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:36:18,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:36:18,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:36:18,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:36:18,640 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1920592616] [2020-10-15 03:36:18,641 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:36:18,641 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:36:18,642 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224085296] [2020-10-15 03:36:18,643 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:36:18,644 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:36:18,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:36:18,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:36:18,645 INFO L87 Difference]: Start difference. First operand 3749 states and 5162 transitions. Second operand 6 states. [2020-10-15 03:36:21,915 WARN L193 SmtUtils]: Spent 3.13 s on a formula simplification that was a NOOP. DAG size: 754 [2020-10-15 03:36:39,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:36:39,854 INFO L93 Difference]: Finished difference Result 7354 states and 10274 transitions. [2020-10-15 03:36:39,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 03:36:39,855 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 105 [2020-10-15 03:36:39,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:36:39,878 INFO L225 Difference]: With dead ends: 7354 [2020-10-15 03:36:39,879 INFO L226 Difference]: Without dead ends: 5260 [2020-10-15 03:36:39,884 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:36:39,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5260 states. [2020-10-15 03:36:40,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5260 to 5120. [2020-10-15 03:36:40,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5120 states. [2020-10-15 03:36:40,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5120 states to 5120 states and 7250 transitions. [2020-10-15 03:36:40,078 INFO L78 Accepts]: Start accepts. Automaton has 5120 states and 7250 transitions. Word has length 105 [2020-10-15 03:36:40,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:36:40,079 INFO L479 AbstractCegarLoop]: Abstraction has 5120 states and 7250 transitions. [2020-10-15 03:36:40,079 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:36:40,079 INFO L276 IsEmpty]: Start isEmpty. Operand 5120 states and 7250 transitions. [2020-10-15 03:36:40,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-15 03:36:40,087 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:36:40,088 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] [2020-10-15 03:36:40,088 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 03:36:40,088 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr28ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr26ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr24ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr22ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr25ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr27ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION, mainErr23ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:36:40,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:36:40,089 INFO L82 PathProgramCache]: Analyzing trace with hash 1780193960, now seen corresponding path program 1 times [2020-10-15 03:36:40,089 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:36:40,089 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1440299214] [2020-10-15 03:36:40,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:36:40,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:36:40,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:36:40,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:36:40,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:36:40,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:36:40,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:36:41,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:36:41,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:36:45,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:36:45,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-15 03:36:45,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 03:36:45,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-15 03:36:45,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:36:45,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:36:45,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:36:45,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:36:45,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-15 03:36:45,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:36:48,301 WARN L193 SmtUtils]: Spent 2.96 s on a formula simplification that was a NOOP. DAG size: 745 [2020-10-15 03:36:48,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:36:48,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:36:48,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:36:48,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:36:48,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:36:48,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:36:48,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-15 03:36:48,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:36:48,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:36:48,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:36:48,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:36:48,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:36:48,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:36:48,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:36:48,445 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1440299214] [2020-10-15 03:36:48,445 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:36:48,445 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:36:48,445 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260299934] [2020-10-15 03:36:48,446 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:36:48,446 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:36:48,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:36:48,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:36:48,447 INFO L87 Difference]: Start difference. First operand 5120 states and 7250 transitions. Second operand 6 states. [2020-10-15 03:36:51,392 WARN L193 SmtUtils]: Spent 2.83 s on a formula simplification that was a NOOP. DAG size: 754 [2020-10-15 03:37:02,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:37:02,877 INFO L93 Difference]: Finished difference Result 7801 states and 10994 transitions. [2020-10-15 03:37:02,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 03:37:02,877 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 106 [2020-10-15 03:37:02,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:37:02,896 INFO L225 Difference]: With dead ends: 7801 [2020-10-15 03:37:02,896 INFO L226 Difference]: Without dead ends: 5228 [2020-10-15 03:37:02,902 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:37:02,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5228 states. [2020-10-15 03:37:03,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5228 to 5126. [2020-10-15 03:37:03,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5126 states. [2020-10-15 03:37:03,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5126 states to 5126 states and 7404 transitions. [2020-10-15 03:37:03,136 INFO L78 Accepts]: Start accepts. Automaton has 5126 states and 7404 transitions. Word has length 106 [2020-10-15 03:37:03,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:37:03,136 INFO L479 AbstractCegarLoop]: Abstraction has 5126 states and 7404 transitions. [2020-10-15 03:37:03,137 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:37:03,137 INFO L276 IsEmpty]: Start isEmpty. Operand 5126 states and 7404 transitions. [2020-10-15 03:37:03,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-15 03:37:03,143 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:37:03,143 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] [2020-10-15 03:37:03,143 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 03:37:03,144 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr28ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr26ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr24ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr22ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr25ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr27ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION, mainErr23ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:37:03,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:37:03,144 INFO L82 PathProgramCache]: Analyzing trace with hash 146310412, now seen corresponding path program 1 times [2020-10-15 03:37:03,144 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:37:03,145 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [564971053] [2020-10-15 03:37:03,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:37:03,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:37:03,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:37:03,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:37:03,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:37:03,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:37:04,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:37:05,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:37:06,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:37:06,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:37:08,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:37:08,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-15 03:37:08,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 03:37:08,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-15 03:37:08,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:37:08,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:37:08,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:37:08,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:37:08,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-15 03:37:08,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:37:11,189 WARN L193 SmtUtils]: Spent 2.82 s on a formula simplification that was a NOOP. DAG size: 745 [2020-10-15 03:37:11,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:37:11,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:37:11,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:37:11,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:37:11,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:37:11,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:37:11,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-15 03:37:11,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:37:11,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:37:11,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:37:11,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:37:11,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:37:11,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:37:11,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:37:11,328 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [564971053] [2020-10-15 03:37:11,328 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:37:11,328 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:37:11,329 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074623684] [2020-10-15 03:37:11,329 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:37:11,329 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:37:11,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:37:11,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:37:11,330 INFO L87 Difference]: Start difference. First operand 5126 states and 7404 transitions. Second operand 6 states. [2020-10-15 03:37:14,262 WARN L193 SmtUtils]: Spent 2.82 s on a formula simplification that was a NOOP. DAG size: 753 [2020-10-15 03:37:25,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:37:25,701 INFO L93 Difference]: Finished difference Result 9688 states and 13923 transitions. [2020-10-15 03:37:25,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 03:37:25,702 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 107 [2020-10-15 03:37:25,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:37:25,729 INFO L225 Difference]: With dead ends: 9688 [2020-10-15 03:37:25,729 INFO L226 Difference]: Without dead ends: 7109 [2020-10-15 03:37:25,738 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:37:25,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7109 states. [2020-10-15 03:37:25,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7109 to 7009. [2020-10-15 03:37:25,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7009 states. [2020-10-15 03:37:26,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7009 states to 7009 states and 10027 transitions. [2020-10-15 03:37:26,004 INFO L78 Accepts]: Start accepts. Automaton has 7009 states and 10027 transitions. Word has length 107 [2020-10-15 03:37:26,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:37:26,005 INFO L479 AbstractCegarLoop]: Abstraction has 7009 states and 10027 transitions. [2020-10-15 03:37:26,005 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:37:26,005 INFO L276 IsEmpty]: Start isEmpty. Operand 7009 states and 10027 transitions. [2020-10-15 03:37:26,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-15 03:37:26,012 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:37:26,012 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] [2020-10-15 03:37:26,012 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 03:37:26,013 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr28ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr26ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr24ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr22ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr25ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr27ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION, mainErr23ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:37:26,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:37:26,013 INFO L82 PathProgramCache]: Analyzing trace with hash 51941816, now seen corresponding path program 1 times [2020-10-15 03:37:26,013 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:37:26,013 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1746104460] [2020-10-15 03:37:26,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:37:26,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:37:26,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:37:26,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:37:26,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:37:26,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:37:27,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:37:28,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:37:29,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:37:29,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:37:30,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:37:31,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:37:31,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-15 03:37:31,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-15 03:37:31,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-15 03:37:31,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:37:31,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:37:31,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:37:31,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-15 03:37:31,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-15 03:37:31,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:37:34,062 WARN L193 SmtUtils]: Spent 2.81 s on a formula simplification that was a NOOP. DAG size: 745 [2020-10-15 03:37:34,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:37:34,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:37:34,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:37:34,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:37:34,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:37:34,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:37:34,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-15 03:37:34,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:37:34,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:37:34,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:37:34,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:37:34,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:37:34,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:37:34,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:37:34,130 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1746104460] [2020-10-15 03:37:34,131 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:37:34,131 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 03:37:34,131 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024266269] [2020-10-15 03:37:34,131 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:37:34,132 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:37:34,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:37:34,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:37:34,132 INFO L87 Difference]: Start difference. First operand 7009 states and 10027 transitions. Second operand 6 states. [2020-10-15 03:37:37,026 WARN L193 SmtUtils]: Spent 2.79 s on a formula simplification that was a NOOP. DAG size: 746 [2020-10-15 03:37:52,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:37:52,683 INFO L93 Difference]: Finished difference Result 28781 states and 42434 transitions. [2020-10-15 03:37:52,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-15 03:37:52,683 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 108 [2020-10-15 03:37:52,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:37:52,746 INFO L225 Difference]: With dead ends: 28781 [2020-10-15 03:37:52,746 INFO L226 Difference]: Without dead ends: 26085 [2020-10-15 03:37:52,762 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-15 03:37:52,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26085 states. [2020-10-15 03:37:53,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26085 to 20149. [2020-10-15 03:37:53,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20149 states. [2020-10-15 03:37:53,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20149 states to 20149 states and 29415 transitions. [2020-10-15 03:37:53,660 INFO L78 Accepts]: Start accepts. Automaton has 20149 states and 29415 transitions. Word has length 108 [2020-10-15 03:37:53,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:37:53,661 INFO L479 AbstractCegarLoop]: Abstraction has 20149 states and 29415 transitions. [2020-10-15 03:37:53,661 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:37:53,661 INFO L276 IsEmpty]: Start isEmpty. Operand 20149 states and 29415 transitions. [2020-10-15 03:37:53,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-15 03:37:53,674 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:37:53,674 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] [2020-10-15 03:37:53,674 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 03:37:53,674 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr28ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr26ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr24ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr22ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr25ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr27ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION, mainErr23ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:37:53,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:37:53,675 INFO L82 PathProgramCache]: Analyzing trace with hash 1749758111, now seen corresponding path program 1 times [2020-10-15 03:37:53,675 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:37:53,675 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1942786194] [2020-10-15 03:37:53,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:37:53,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:37:53,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:37:53,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:37:53,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:37:54,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:37:54,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:37:54,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:37:55,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:37:55,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:37:58,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:37:58,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-15 03:37:58,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 03:37:58,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-15 03:37:58,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:37:58,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:37:58,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 03:37:58,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:37:58,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-15 03:37:58,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0