/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 09:36:44,262 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 09:36:44,265 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 09:36:44,306 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 09:36:44,306 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 09:36:44,307 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 09:36:44,309 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 09:36:44,310 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 09:36:44,312 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 09:36:44,313 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 09:36:44,314 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 09:36:44,315 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 09:36:44,315 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 09:36:44,316 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 09:36:44,317 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 09:36:44,318 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 09:36:44,319 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 09:36:44,320 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 09:36:44,321 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 09:36:44,323 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 09:36:44,324 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 09:36:44,325 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 09:36:44,326 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 09:36:44,327 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 09:36:44,329 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 09:36:44,329 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 09:36:44,330 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 09:36:44,330 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 09:36:44,331 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 09:36:44,332 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 09:36:44,332 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 09:36:44,333 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 09:36:44,333 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 09:36:44,334 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 09:36:44,335 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 09:36:44,335 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 09:36:44,336 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 09:36:44,336 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 09:36:44,336 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 09:36:44,337 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 09:36:44,338 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 09:36:44,339 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 09:36:44,361 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 09:36:44,361 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 09:36:44,362 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 09:36:44,363 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 09:36:44,363 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 09:36:44,363 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 09:36:44,363 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 09:36:44,363 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 09:36:44,364 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 09:36:44,364 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 09:36:44,364 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 09:36:44,364 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 09:36:44,364 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 09:36:44,364 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 09:36:44,365 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 09:36:44,365 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 09:36:44,365 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 09:36:44,365 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 09:36:44,365 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 09:36:44,366 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 09:36:44,366 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 09:36:44,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 09:36:44,366 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 09:36:44,366 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 09:36:44,367 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 09:36:44,367 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 09:36:44,367 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 09:36:44,367 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 09:36:44,367 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 09:36:44,368 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 09:36:44,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 09:36:44,674 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 09:36:44,677 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 09:36:44,679 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 09:36:44,679 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 09:36:44,680 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-14 09:36:44,740 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/76316f63d/49ba46a373914c4ea93366f492ac3fb5/FLAG7ef68002d [2020-10-14 09:36:45,407 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 09:36:45,408 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-14 09:36:45,430 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/76316f63d/49ba46a373914c4ea93366f492ac3fb5/FLAG7ef68002d [2020-10-14 09:36:45,606 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/76316f63d/49ba46a373914c4ea93366f492ac3fb5 [2020-10-14 09:36:45,615 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 09:36:45,617 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 09:36:45,618 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 09:36:45,619 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 09:36:45,622 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 09:36:45,624 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:36:45" (1/1) ... [2020-10-14 09:36:45,627 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d507481 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:36:45, skipping insertion in model container [2020-10-14 09:36:45,628 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:36:45" (1/1) ... [2020-10-14 09:36:45,637 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 09:36:45,797 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 09:36:47,257 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 09:36:47,270 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 09:36:48,233 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 09:36:48,275 INFO L208 MainTranslator]: Completed translation [2020-10-14 09:36:48,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:36:48 WrapperNode [2020-10-14 09:36:48,276 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 09:36:48,277 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 09:36:48,277 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 09:36:48,277 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 09:36:48,300 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:36:48" (1/1) ... [2020-10-14 09:36:48,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:36:48" (1/1) ... [2020-10-14 09:36:48,369 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:36:48" (1/1) ... [2020-10-14 09:36:48,374 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:36:48" (1/1) ... [2020-10-14 09:36:48,464 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:36:48" (1/1) ... [2020-10-14 09:36:48,492 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:36:48" (1/1) ... [2020-10-14 09:36:48,501 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:36:48" (1/1) ... [2020-10-14 09:36:48,515 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 09:36:48,515 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 09:36:48,515 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 09:36:48,515 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 09:36:48,517 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:36:48" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 09:36:48,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 09:36:48,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 09:36:48,600 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 09:36:48,600 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 09:36:48,600 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 09:36:48,600 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-14 09:36:48,601 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-14 09:36:48,601 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-14 09:36:48,601 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-14 09:36:48,601 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 09:36:48,601 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 09:36:48,602 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-14 09:36:48,602 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-14 09:36:48,602 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-14 09:36:48,602 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-14 09:36:48,602 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-14 09:36:48,602 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-14 09:36:48,603 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-14 09:36:48,603 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-14 09:36:48,603 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 09:36:48,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 09:36:48,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 09:36:51,649 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 09:36:51,649 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-14 09:36:51,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 09:36:51 BoogieIcfgContainer [2020-10-14 09:36:51,659 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 09:36:51,661 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 09:36:51,661 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 09:36:51,664 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 09:36:51,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 09:36:45" (1/3) ... [2020-10-14 09:36:51,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64bca0c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 09:36:51, skipping insertion in model container [2020-10-14 09:36:51,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:36:48" (2/3) ... [2020-10-14 09:36:51,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64bca0c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 09:36:51, skipping insertion in model container [2020-10-14 09:36:51,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 09:36:51" (3/3) ... [2020-10-14 09:36:51,668 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-14 09:36:51,681 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 09:36:51,691 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2020-10-14 09:36:51,710 INFO L251 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2020-10-14 09:36:51,747 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 09:36:51,747 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 09:36:51,747 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 09:36:51,747 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 09:36:51,748 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 09:36:51,748 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 09:36:51,748 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 09:36:51,748 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 09:36:51,793 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states. [2020-10-14 09:36:51,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2020-10-14 09:36:51,828 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 09:36:51,829 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 09:36:51,830 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 09:36:51,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 09:36:51,838 INFO L82 PathProgramCache]: Analyzing trace with hash -537993708, now seen corresponding path program 1 times [2020-10-14 09:36:51,851 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 09:36:51,852 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1414201033] [2020-10-14 09:36:51,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 09:36:52,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:36:53,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:36:53,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:36:54,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:36:54,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:36:55,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:36:55,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:36:55,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:36:56,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:36:56,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:36:56,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:36:56,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:36:57,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:36:57,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:36:57,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:36:57,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:36:57,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 333 [2020-10-14 09:36:57,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-14 09:36:57,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-10-14 09:36:57,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:36:57,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:36:57,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 09:36:57,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-14 09:36:57,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 219 [2020-10-14 09:36:57,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 09:36:58,739 WARN L193 SmtUtils]: Spent 648.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-14 09:36:58,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 09:36:58,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:36:58,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:36:58,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:36:58,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 09:36:58,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 09:36:58,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 09:36:58,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:36:58,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:36:58,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 09:36:58,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 09:36:58,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 09:36:58,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 09:36:58,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 09:36:58,980 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1414201033] [2020-10-14 09:36:58,982 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 09:36:58,982 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 09:36:58,983 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425115576] [2020-10-14 09:36:58,989 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 09:36:58,989 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 09:36:59,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 09:36:59,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 09:36:59,009 INFO L87 Difference]: Start difference. First operand 1027 states. Second operand 4 states. [2020-10-14 09:36:59,602 WARN L193 SmtUtils]: Spent 523.00 ms on a formula simplification that was a NOOP. DAG size: 323 [2020-10-14 09:37:07,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 09:37:07,323 INFO L93 Difference]: Finished difference Result 1794 states and 3183 transitions. [2020-10-14 09:37:07,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 09:37:07,325 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 327 [2020-10-14 09:37:07,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 09:37:07,355 INFO L225 Difference]: With dead ends: 1794 [2020-10-14 09:37:07,355 INFO L226 Difference]: Without dead ends: 1483 [2020-10-14 09:37:07,362 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 09:37:07,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1483 states. [2020-10-14 09:37:07,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1483 to 1481. [2020-10-14 09:37:07,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1481 states. [2020-10-14 09:37:07,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1481 states to 1481 states and 2263 transitions. [2020-10-14 09:37:07,538 INFO L78 Accepts]: Start accepts. Automaton has 1481 states and 2263 transitions. Word has length 327 [2020-10-14 09:37:07,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 09:37:07,540 INFO L479 AbstractCegarLoop]: Abstraction has 1481 states and 2263 transitions. [2020-10-14 09:37:07,541 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 09:37:07,541 INFO L276 IsEmpty]: Start isEmpty. Operand 1481 states and 2263 transitions. [2020-10-14 09:37:07,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2020-10-14 09:37:07,548 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 09:37:07,549 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 09:37:07,549 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 09:37:07,550 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 09:37:07,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 09:37:07,551 INFO L82 PathProgramCache]: Analyzing trace with hash 297127498, now seen corresponding path program 1 times [2020-10-14 09:37:07,551 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 09:37:07,551 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1838199629] [2020-10-14 09:37:07,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 09:37:07,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:37:07,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:08,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:08,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:08,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:08,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:09,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:09,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:09,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:09,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:09,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:09,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:10,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:10,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:10,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:10,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:12,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:37:12,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 333 [2020-10-14 09:37:12,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-14 09:37:12,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-14 09:37:12,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:37:12,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:37:12,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 09:37:12,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-14 09:37:12,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 233 [2020-10-14 09:37:12,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 09:37:13,757 WARN L193 SmtUtils]: Spent 675.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-14 09:37:13,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 09:37:13,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:37:13,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:13,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:37:13,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 09:37:13,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 09:37:13,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 09:37:13,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:37:13,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:37:13,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 09:37:13,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 09:37:13,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 09:37:13,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 09:37:14,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 09:37:14,076 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1838199629] [2020-10-14 09:37:14,077 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 09:37:14,077 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 09:37:14,078 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867437621] [2020-10-14 09:37:14,080 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 09:37:14,081 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 09:37:14,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 09:37:14,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 09:37:14,082 INFO L87 Difference]: Start difference. First operand 1481 states and 2263 transitions. Second operand 4 states. [2020-10-14 09:37:14,828 WARN L193 SmtUtils]: Spent 680.00 ms on a formula simplification that was a NOOP. DAG size: 323 [2020-10-14 09:37:21,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 09:37:21,628 INFO L93 Difference]: Finished difference Result 2844 states and 4401 transitions. [2020-10-14 09:37:21,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 09:37:21,629 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 327 [2020-10-14 09:37:21,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 09:37:21,643 INFO L225 Difference]: With dead ends: 2844 [2020-10-14 09:37:21,643 INFO L226 Difference]: Without dead ends: 2425 [2020-10-14 09:37:21,648 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 09:37:21,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2425 states. [2020-10-14 09:37:21,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2425 to 2423. [2020-10-14 09:37:21,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2423 states. [2020-10-14 09:37:21,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2423 states to 2423 states and 3727 transitions. [2020-10-14 09:37:21,733 INFO L78 Accepts]: Start accepts. Automaton has 2423 states and 3727 transitions. Word has length 327 [2020-10-14 09:37:21,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 09:37:21,735 INFO L479 AbstractCegarLoop]: Abstraction has 2423 states and 3727 transitions. [2020-10-14 09:37:21,735 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 09:37:21,735 INFO L276 IsEmpty]: Start isEmpty. Operand 2423 states and 3727 transitions. [2020-10-14 09:37:21,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2020-10-14 09:37:21,743 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 09:37:21,743 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 09:37:21,744 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 09:37:21,749 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 09:37:21,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 09:37:21,750 INFO L82 PathProgramCache]: Analyzing trace with hash -586459585, now seen corresponding path program 1 times [2020-10-14 09:37:21,750 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 09:37:21,751 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2143645051] [2020-10-14 09:37:21,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 09:37:21,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:37:22,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:22,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:22,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:22,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:22,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:23,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:23,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:23,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:23,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:23,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:23,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:24,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:24,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:24,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:24,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:26,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:37:26,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 333 [2020-10-14 09:37:26,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-14 09:37:26,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-14 09:37:26,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:37:26,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:37:26,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 09:37:26,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-14 09:37:26,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 241 [2020-10-14 09:37:26,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 09:37:27,639 WARN L193 SmtUtils]: Spent 533.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-14 09:37:27,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 09:37:27,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:37:27,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:27,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:37:27,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 09:37:27,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 09:37:27,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 09:37:27,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:37:27,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:37:27,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 09:37:27,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 09:37:27,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 09:37:27,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 09:37:27,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 09:37:27,986 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2143645051] [2020-10-14 09:37:27,989 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 09:37:27,991 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 09:37:27,991 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149200089] [2020-10-14 09:37:27,992 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 09:37:27,993 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 09:37:27,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 09:37:27,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 09:37:28,000 INFO L87 Difference]: Start difference. First operand 2423 states and 3727 transitions. Second operand 4 states. [2020-10-14 09:37:28,536 WARN L193 SmtUtils]: Spent 491.00 ms on a formula simplification that was a NOOP. DAG size: 323 [2020-10-14 09:37:34,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 09:37:34,501 INFO L93 Difference]: Finished difference Result 5038 states and 7854 transitions. [2020-10-14 09:37:34,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 09:37:34,505 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 327 [2020-10-14 09:37:34,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 09:37:34,526 INFO L225 Difference]: With dead ends: 5038 [2020-10-14 09:37:34,527 INFO L226 Difference]: Without dead ends: 4361 [2020-10-14 09:37:34,530 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 09:37:34,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4361 states. [2020-10-14 09:37:34,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4361 to 4359. [2020-10-14 09:37:34,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4359 states. [2020-10-14 09:37:34,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4359 states to 4359 states and 6733 transitions. [2020-10-14 09:37:34,653 INFO L78 Accepts]: Start accepts. Automaton has 4359 states and 6733 transitions. Word has length 327 [2020-10-14 09:37:34,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 09:37:34,654 INFO L479 AbstractCegarLoop]: Abstraction has 4359 states and 6733 transitions. [2020-10-14 09:37:34,654 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 09:37:34,654 INFO L276 IsEmpty]: Start isEmpty. Operand 4359 states and 6733 transitions. [2020-10-14 09:37:34,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2020-10-14 09:37:34,668 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 09:37:34,668 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 09:37:34,668 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 09:37:34,669 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 09:37:34,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 09:37:34,669 INFO L82 PathProgramCache]: Analyzing trace with hash -586798209, now seen corresponding path program 1 times [2020-10-14 09:37:34,669 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 09:37:34,670 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [956417835] [2020-10-14 09:37:34,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 09:37:34,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:37:35,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:35,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:35,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:35,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:35,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:36,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:36,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:36,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:36,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:36,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:36,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:36,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:37,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:37,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:37,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:39,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:37:39,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 333 [2020-10-14 09:37:39,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-14 09:37:39,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-10-14 09:37:39,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:37:39,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:37:39,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 09:37:39,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 09:37:39,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 177 [2020-10-14 09:37:39,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 09:37:40,740 WARN L193 SmtUtils]: Spent 500.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-14 09:37:40,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 09:37:40,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:37:40,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:40,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:37:40,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 09:37:40,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 09:37:40,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 09:37:40,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:37:40,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:37:40,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 09:37:40,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 09:37:40,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 09:37:40,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 09:37:40,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 09:37:40,949 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [956417835] [2020-10-14 09:37:40,949 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 09:37:40,949 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 09:37:40,949 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777921476] [2020-10-14 09:37:40,950 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 09:37:40,950 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 09:37:40,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 09:37:40,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 09:37:40,951 INFO L87 Difference]: Start difference. First operand 4359 states and 6733 transitions. Second operand 5 states. [2020-10-14 09:37:49,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 09:37:49,790 INFO L93 Difference]: Finished difference Result 12887 states and 19882 transitions. [2020-10-14 09:37:49,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 09:37:49,791 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 327 [2020-10-14 09:37:49,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 09:37:49,829 INFO L225 Difference]: With dead ends: 12887 [2020-10-14 09:37:49,830 INFO L226 Difference]: Without dead ends: 8541 [2020-10-14 09:37:49,840 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 09:37:49,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8541 states. [2020-10-14 09:37:50,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8541 to 8350. [2020-10-14 09:37:50,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8350 states. [2020-10-14 09:37:50,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8350 states to 8350 states and 12854 transitions. [2020-10-14 09:37:50,134 INFO L78 Accepts]: Start accepts. Automaton has 8350 states and 12854 transitions. Word has length 327 [2020-10-14 09:37:50,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 09:37:50,134 INFO L479 AbstractCegarLoop]: Abstraction has 8350 states and 12854 transitions. [2020-10-14 09:37:50,134 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 09:37:50,134 INFO L276 IsEmpty]: Start isEmpty. Operand 8350 states and 12854 transitions. [2020-10-14 09:37:50,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2020-10-14 09:37:50,152 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 09:37:50,153 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 09:37:50,153 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 09:37:50,153 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 09:37:50,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 09:37:50,154 INFO L82 PathProgramCache]: Analyzing trace with hash 2126519767, now seen corresponding path program 1 times [2020-10-14 09:37:50,154 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 09:37:50,154 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [464965917] [2020-10-14 09:37:50,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 09:37:50,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:37:50,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:50,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:50,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:50,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:50,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:50,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:51,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:51,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:51,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:51,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:51,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:51,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:51,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:51,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:52,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:55,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:37:55,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 335 [2020-10-14 09:37:55,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-14 09:37:55,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-14 09:37:55,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:37:55,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:37:55,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 09:37:55,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 09:37:55,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 09:37:55,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 09:37:55,774 WARN L193 SmtUtils]: Spent 488.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-14 09:37:55,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 09:37:55,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:37:55,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:37:55,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:37:55,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 09:37:55,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 09:37:55,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 09:37:55,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:37:55,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:37:55,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 09:37:55,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 09:37:55,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 09:37:55,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 09:37:55,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 09:37:55,885 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [464965917] [2020-10-14 09:37:55,885 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 09:37:55,886 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 09:37:55,886 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136949805] [2020-10-14 09:37:55,886 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 09:37:55,887 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 09:37:55,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 09:37:55,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 09:37:55,887 INFO L87 Difference]: Start difference. First operand 8350 states and 12854 transitions. Second operand 4 states. [2020-10-14 09:38:01,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 09:38:01,826 INFO L93 Difference]: Finished difference Result 25009 states and 38498 transitions. [2020-10-14 09:38:01,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 09:38:01,826 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 329 [2020-10-14 09:38:01,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 09:38:01,888 INFO L225 Difference]: With dead ends: 25009 [2020-10-14 09:38:01,888 INFO L226 Difference]: Without dead ends: 16682 [2020-10-14 09:38:01,907 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 09:38:01,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16682 states. [2020-10-14 09:38:02,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16682 to 8361. [2020-10-14 09:38:02,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8361 states. [2020-10-14 09:38:02,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8361 states to 8361 states and 12870 transitions. [2020-10-14 09:38:02,259 INFO L78 Accepts]: Start accepts. Automaton has 8361 states and 12870 transitions. Word has length 329 [2020-10-14 09:38:02,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 09:38:02,260 INFO L479 AbstractCegarLoop]: Abstraction has 8361 states and 12870 transitions. [2020-10-14 09:38:02,260 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 09:38:02,260 INFO L276 IsEmpty]: Start isEmpty. Operand 8361 states and 12870 transitions. [2020-10-14 09:38:02,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2020-10-14 09:38:02,282 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 09:38:02,282 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 09:38:02,282 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 09:38:02,283 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 09:38:02,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 09:38:02,283 INFO L82 PathProgramCache]: Analyzing trace with hash 1628240060, now seen corresponding path program 1 times [2020-10-14 09:38:02,283 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 09:38:02,284 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [715207818] [2020-10-14 09:38:02,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 09:38:02,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:38:02,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:02,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:02,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:02,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:02,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:02,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:02,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:02,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:03,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:03,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:03,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:03,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:03,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:03,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:03,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:07,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:38:07,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 335 [2020-10-14 09:38:07,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-14 09:38:07,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-10-14 09:38:07,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:38:07,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:38:07,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 09:38:07,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-14 09:38:07,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 09:38:07,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 09:38:07,958 WARN L193 SmtUtils]: Spent 490.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-14 09:38:07,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 09:38:07,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:38:07,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:07,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:38:07,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 09:38:07,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 09:38:07,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 09:38:07,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:38:07,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:38:07,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 09:38:07,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 09:38:07,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 09:38:07,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 09:38:08,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 09:38:08,084 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [715207818] [2020-10-14 09:38:08,084 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 09:38:08,085 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 09:38:08,085 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545373376] [2020-10-14 09:38:08,086 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 09:38:08,086 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 09:38:08,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 09:38:08,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 09:38:08,086 INFO L87 Difference]: Start difference. First operand 8361 states and 12870 transitions. Second operand 4 states. [2020-10-14 09:38:18,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 09:38:18,531 INFO L93 Difference]: Finished difference Result 24575 states and 37748 transitions. [2020-10-14 09:38:18,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 09:38:18,532 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 329 [2020-10-14 09:38:18,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 09:38:18,569 INFO L225 Difference]: With dead ends: 24575 [2020-10-14 09:38:18,569 INFO L226 Difference]: Without dead ends: 16365 [2020-10-14 09:38:18,590 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 09:38:18,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16365 states. [2020-10-14 09:38:19,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16365 to 16182. [2020-10-14 09:38:19,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16182 states. [2020-10-14 09:38:19,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16182 states to 16182 states and 24787 transitions. [2020-10-14 09:38:19,108 INFO L78 Accepts]: Start accepts. Automaton has 16182 states and 24787 transitions. Word has length 329 [2020-10-14 09:38:19,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 09:38:19,109 INFO L479 AbstractCegarLoop]: Abstraction has 16182 states and 24787 transitions. [2020-10-14 09:38:19,109 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 09:38:19,109 INFO L276 IsEmpty]: Start isEmpty. Operand 16182 states and 24787 transitions. [2020-10-14 09:38:19,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2020-10-14 09:38:19,141 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 09:38:19,141 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 09:38:19,141 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 09:38:19,141 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 09:38:19,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 09:38:19,142 INFO L82 PathProgramCache]: Analyzing trace with hash -640191760, now seen corresponding path program 1 times [2020-10-14 09:38:19,142 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 09:38:19,142 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [803903985] [2020-10-14 09:38:19,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 09:38:19,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:38:19,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:19,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:19,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:19,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:19,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:19,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:20,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:20,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:20,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:20,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:20,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:20,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:20,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:20,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:20,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:21,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:24,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:38:24,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 336 [2020-10-14 09:38:24,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-14 09:38:24,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-14 09:38:24,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:38:24,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:38:24,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 09:38:24,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-14 09:38:24,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 09:38:24,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 09:38:24,770 WARN L193 SmtUtils]: Spent 500.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-14 09:38:24,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 09:38:24,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:38:24,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:24,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:38:24,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 09:38:24,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 09:38:24,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 09:38:24,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:38:24,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:38:24,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 09:38:24,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 09:38:24,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 09:38:24,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 09:38:24,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 09:38:24,862 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [803903985] [2020-10-14 09:38:24,862 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 09:38:24,862 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 09:38:24,862 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775566054] [2020-10-14 09:38:24,863 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 09:38:24,863 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 09:38:24,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 09:38:24,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 09:38:24,864 INFO L87 Difference]: Start difference. First operand 16182 states and 24787 transitions. Second operand 4 states. [2020-10-14 09:38:35,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 09:38:35,757 INFO L93 Difference]: Finished difference Result 48451 states and 74207 transitions. [2020-10-14 09:38:35,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 09:38:35,758 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 330 [2020-10-14 09:38:35,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 09:38:35,826 INFO L225 Difference]: With dead ends: 48451 [2020-10-14 09:38:35,826 INFO L226 Difference]: Without dead ends: 32319 [2020-10-14 09:38:35,863 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 09:38:35,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32319 states. [2020-10-14 09:38:36,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32319 to 16198. [2020-10-14 09:38:36,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16198 states. [2020-10-14 09:38:36,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16198 states to 16198 states and 24806 transitions. [2020-10-14 09:38:36,630 INFO L78 Accepts]: Start accepts. Automaton has 16198 states and 24806 transitions. Word has length 330 [2020-10-14 09:38:36,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 09:38:36,630 INFO L479 AbstractCegarLoop]: Abstraction has 16198 states and 24806 transitions. [2020-10-14 09:38:36,630 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 09:38:36,631 INFO L276 IsEmpty]: Start isEmpty. Operand 16198 states and 24806 transitions. [2020-10-14 09:38:36,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2020-10-14 09:38:36,654 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 09:38:36,655 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 09:38:36,655 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 09:38:36,655 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 09:38:36,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 09:38:36,656 INFO L82 PathProgramCache]: Analyzing trace with hash -1028005055, now seen corresponding path program 1 times [2020-10-14 09:38:36,656 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 09:38:36,656 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [601188929] [2020-10-14 09:38:36,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 09:38:36,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:38:36,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:36,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:36,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:37,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:37,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:37,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:37,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:37,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:37,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:37,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:37,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:37,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:38,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:38,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:38,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:38,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:41,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:38:41,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 337 [2020-10-14 09:38:41,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-14 09:38:41,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-14 09:38:41,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:38:41,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:38:41,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 09:38:41,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-14 09:38:41,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 193 [2020-10-14 09:38:41,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 09:38:42,321 WARN L193 SmtUtils]: Spent 493.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-14 09:38:42,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 09:38:42,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:38:42,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:42,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:38:42,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 09:38:42,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 09:38:42,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 09:38:42,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:38:42,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:38:42,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 09:38:42,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 09:38:42,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 09:38:42,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 09:38:42,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 09:38:42,593 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [601188929] [2020-10-14 09:38:42,593 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 09:38:42,593 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 09:38:42,593 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354445202] [2020-10-14 09:38:42,594 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 09:38:42,594 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 09:38:42,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 09:38:42,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 09:38:42,595 INFO L87 Difference]: Start difference. First operand 16198 states and 24806 transitions. Second operand 4 states. [2020-10-14 09:38:53,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 09:38:53,441 INFO L93 Difference]: Finished difference Result 45958 states and 70247 transitions. [2020-10-14 09:38:53,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 09:38:53,441 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 331 [2020-10-14 09:38:53,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 09:38:53,489 INFO L225 Difference]: With dead ends: 45958 [2020-10-14 09:38:53,489 INFO L226 Difference]: Without dead ends: 29957 [2020-10-14 09:38:53,519 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 09:38:53,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29957 states. [2020-10-14 09:38:54,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29957 to 29782. [2020-10-14 09:38:54,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29782 states. [2020-10-14 09:38:54,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29782 states to 29782 states and 45318 transitions. [2020-10-14 09:38:54,432 INFO L78 Accepts]: Start accepts. Automaton has 29782 states and 45318 transitions. Word has length 331 [2020-10-14 09:38:54,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 09:38:54,433 INFO L479 AbstractCegarLoop]: Abstraction has 29782 states and 45318 transitions. [2020-10-14 09:38:54,433 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 09:38:54,433 INFO L276 IsEmpty]: Start isEmpty. Operand 29782 states and 45318 transitions. [2020-10-14 09:38:54,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2020-10-14 09:38:54,461 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 09:38:54,461 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 09:38:54,461 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 09:38:54,461 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 09:38:54,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 09:38:54,462 INFO L82 PathProgramCache]: Analyzing trace with hash -875950076, now seen corresponding path program 1 times [2020-10-14 09:38:54,462 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 09:38:54,462 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [749247032] [2020-10-14 09:38:54,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 09:38:54,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:38:54,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:54,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:54,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:55,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:55,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:55,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:55,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:55,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:55,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:55,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:55,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:55,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:55,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:56,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:56,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:56,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:56,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:38:59,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:38:59,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 337 [2020-10-14 09:38:59,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-14 09:38:59,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-14 09:38:59,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:38:59,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:38:59,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 09:38:59,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 09:38:59,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-14 09:38:59,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 09:39:00,363 WARN L193 SmtUtils]: Spent 639.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-14 09:39:00,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 09:39:00,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:39:00,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:39:00,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:39:00,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 09:39:00,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 09:39:00,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 09:39:00,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:39:00,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:39:00,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 09:39:00,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 09:39:00,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 09:39:00,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 09:39:00,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 09:39:00,528 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [749247032] [2020-10-14 09:39:00,529 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 09:39:00,529 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 09:39:00,529 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818785899] [2020-10-14 09:39:00,530 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 09:39:00,530 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 09:39:00,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 09:39:00,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 09:39:00,530 INFO L87 Difference]: Start difference. First operand 29782 states and 45318 transitions. Second operand 5 states. [2020-10-14 09:39:11,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 09:39:11,277 INFO L93 Difference]: Finished difference Result 87935 states and 133606 transitions. [2020-10-14 09:39:11,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 09:39:11,278 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 331 [2020-10-14 09:39:11,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 09:39:11,358 INFO L225 Difference]: With dead ends: 87935 [2020-10-14 09:39:11,358 INFO L226 Difference]: Without dead ends: 58287 [2020-10-14 09:39:11,400 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 09:39:11,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58287 states. [2020-10-14 09:39:13,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58287 to 57970. [2020-10-14 09:39:13,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57970 states. [2020-10-14 09:39:13,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57970 states to 57970 states and 87671 transitions. [2020-10-14 09:39:13,223 INFO L78 Accepts]: Start accepts. Automaton has 57970 states and 87671 transitions. Word has length 331 [2020-10-14 09:39:13,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 09:39:13,224 INFO L479 AbstractCegarLoop]: Abstraction has 57970 states and 87671 transitions. [2020-10-14 09:39:13,224 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 09:39:13,224 INFO L276 IsEmpty]: Start isEmpty. Operand 57970 states and 87671 transitions. [2020-10-14 09:39:13,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2020-10-14 09:39:13,263 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 09:39:13,264 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 09:39:13,264 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 09:39:13,264 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 09:39:13,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 09:39:13,265 INFO L82 PathProgramCache]: Analyzing trace with hash -971015070, now seen corresponding path program 1 times [2020-10-14 09:39:13,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 09:39:13,265 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1542754316] [2020-10-14 09:39:13,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 09:39:13,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:39:13,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:39:13,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:39:13,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:39:15,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:39:15,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:39:15,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:39:15,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:39:15,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:39:15,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:39:15,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:39:15,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:39:15,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:39:15,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:39:15,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:39:16,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:39:18,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:39:18,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 339 [2020-10-14 09:39:18,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-14 09:39:18,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-14 09:39:18,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:39:18,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:39:18,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 09:39:18,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-14 09:39:18,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 09:39:18,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 09:39:18,881 WARN L193 SmtUtils]: Spent 499.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-14 09:39:18,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 09:39:18,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:39:18,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:39:18,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:39:18,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 09:39:18,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 09:39:18,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 09:39:18,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:39:18,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:39:18,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 09:39:18,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 09:39:18,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 09:39:18,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 09:39:19,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 09:39:19,159 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1542754316] [2020-10-14 09:39:19,159 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 09:39:19,159 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 09:39:19,159 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703659432] [2020-10-14 09:39:19,160 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 09:39:19,160 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 09:39:19,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 09:39:19,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 09:39:19,161 INFO L87 Difference]: Start difference. First operand 57970 states and 87671 transitions. Second operand 4 states. [2020-10-14 09:39:33,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 09:39:33,393 INFO L93 Difference]: Finished difference Result 173536 states and 262403 transitions. [2020-10-14 09:39:33,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 09:39:33,394 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 333 [2020-10-14 09:39:33,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 09:39:33,509 INFO L225 Difference]: With dead ends: 173536 [2020-10-14 09:39:33,510 INFO L226 Difference]: Without dead ends: 115736 [2020-10-14 09:39:33,569 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 09:39:33,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115736 states. [2020-10-14 09:39:36,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115736 to 58027. [2020-10-14 09:39:36,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58027 states. [2020-10-14 09:39:36,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58027 states to 58027 states and 87743 transitions. [2020-10-14 09:39:36,236 INFO L78 Accepts]: Start accepts. Automaton has 58027 states and 87743 transitions. Word has length 333 [2020-10-14 09:39:36,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 09:39:36,236 INFO L479 AbstractCegarLoop]: Abstraction has 58027 states and 87743 transitions. [2020-10-14 09:39:36,236 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 09:39:36,236 INFO L276 IsEmpty]: Start isEmpty. Operand 58027 states and 87743 transitions. [2020-10-14 09:39:36,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2020-10-14 09:39:36,283 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 09:39:36,283 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 09:39:36,284 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 09:39:36,284 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 09:39:36,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 09:39:36,284 INFO L82 PathProgramCache]: Analyzing trace with hash 1659867591, now seen corresponding path program 1 times [2020-10-14 09:39:36,284 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 09:39:36,285 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1712258395] [2020-10-14 09:39:36,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 09:39:36,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:39:36,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:39:36,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:39:36,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:39:36,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:39:36,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:39:36,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:39:36,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:39:38,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:39:38,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:39:38,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:39:38,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:39:38,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:39:38,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:39:39,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:39:39,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:39:39,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:39:39,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:39:39,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:39:39,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:39:41,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:39:41,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 339 [2020-10-14 09:39:41,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 19 [2020-10-14 09:39:41,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-14 09:39:41,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:39:41,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:39:41,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 09:39:41,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-14 09:39:41,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-14 09:39:41,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 09:39:41,984 WARN L193 SmtUtils]: Spent 525.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-14 09:39:41,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 09:39:41,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:39:42,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:39:42,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:39:42,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 09:39:42,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 09:39:42,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 09:39:42,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:39:42,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:39:42,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 09:39:42,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 09:39:42,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 09:39:42,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 09:39:42,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 09:39:42,118 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1712258395] [2020-10-14 09:39:42,119 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 09:39:42,119 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 09:39:42,119 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554237254] [2020-10-14 09:39:42,120 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 09:39:42,120 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 09:39:42,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 09:39:42,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 09:39:42,121 INFO L87 Difference]: Start difference. First operand 58027 states and 87743 transitions. Second operand 4 states. [2020-10-14 09:39:57,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 09:39:57,015 INFO L93 Difference]: Finished difference Result 170938 states and 257983 transitions. [2020-10-14 09:39:57,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 09:39:57,016 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 333 [2020-10-14 09:39:57,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 09:39:57,132 INFO L225 Difference]: With dead ends: 170938 [2020-10-14 09:39:57,132 INFO L226 Difference]: Without dead ends: 113607 [2020-10-14 09:39:57,177 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 09:39:57,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113607 states. [2020-10-14 09:40:01,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113607 to 113290. [2020-10-14 09:40:01,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113290 states. [2020-10-14 09:40:01,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113290 states to 113290 states and 170201 transitions. [2020-10-14 09:40:01,910 INFO L78 Accepts]: Start accepts. Automaton has 113290 states and 170201 transitions. Word has length 333 [2020-10-14 09:40:01,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 09:40:01,911 INFO L479 AbstractCegarLoop]: Abstraction has 113290 states and 170201 transitions. [2020-10-14 09:40:01,911 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 09:40:01,911 INFO L276 IsEmpty]: Start isEmpty. Operand 113290 states and 170201 transitions. [2020-10-14 09:40:01,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2020-10-14 09:40:01,977 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 09:40:01,977 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 09:40:01,977 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 09:40:01,978 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 09:40:01,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 09:40:01,978 INFO L82 PathProgramCache]: Analyzing trace with hash -212156589, now seen corresponding path program 1 times [2020-10-14 09:40:01,978 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 09:40:01,979 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1144623335] [2020-10-14 09:40:01,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 09:40:02,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:40:02,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:40:02,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:40:02,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:40:02,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:40:02,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:40:02,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:40:02,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:40:02,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:40:02,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:40:02,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:40:02,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:40:02,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:40:02,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:40:03,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:40:03,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:40:03,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:40:05,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:40:06,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:40:07,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:40:07,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 340 [2020-10-14 09:40:07,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-10-14 09:40:07,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-14 09:40:07,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:40:07,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:40:07,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 09:40:07,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-14 09:40:07,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 187 [2020-10-14 09:40:07,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 09:40:07,629 WARN L193 SmtUtils]: Spent 519.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-14 09:40:07,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 09:40:07,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:40:07,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:40:07,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:40:07,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 09:40:07,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 09:40:07,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 09:40:07,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:40:07,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:40:07,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 09:40:07,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 09:40:07,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 09:40:07,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 09:40:07,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 09:40:07,796 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1144623335] [2020-10-14 09:40:07,797 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 09:40:07,797 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 09:40:07,797 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030920428] [2020-10-14 09:40:07,798 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 09:40:07,798 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 09:40:07,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 09:40:07,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 09:40:07,798 INFO L87 Difference]: Start difference. First operand 113290 states and 170201 transitions. Second operand 4 states.