/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 03:26:10,254 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 03:26:10,257 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 03:26:10,283 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 03:26:10,283 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 03:26:10,284 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 03:26:10,287 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 03:26:10,293 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 03:26:10,297 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 03:26:10,298 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 03:26:10,299 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 03:26:10,300 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 03:26:10,301 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 03:26:10,303 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 03:26:10,306 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 03:26:10,308 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 03:26:10,309 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 03:26:10,309 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 03:26:10,313 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 03:26:10,316 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 03:26:10,318 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 03:26:10,320 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 03:26:10,321 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 03:26:10,322 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 03:26:10,327 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 03:26:10,328 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 03:26:10,328 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 03:26:10,332 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 03:26:10,332 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 03:26:10,333 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 03:26:10,334 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 03:26:10,334 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 03:26:10,335 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 03:26:10,335 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 03:26:10,345 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 03:26:10,346 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 03:26:10,347 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 03:26:10,347 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 03:26:10,350 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 03:26:10,351 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 03:26:10,352 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 03:26:10,355 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-15 03:26:10,382 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 03:26:10,382 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 03:26:10,383 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 03:26:10,383 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 03:26:10,384 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 03:26:10,384 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 03:26:10,384 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 03:26:10,384 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 03:26:10,384 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 03:26:10,384 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 03:26:10,385 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 03:26:10,385 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 03:26:10,385 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 03:26:10,385 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 03:26:10,385 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 03:26:10,386 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 03:26:10,386 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 03:26:10,386 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 03:26:10,386 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 03:26:10,386 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 03:26:10,386 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 03:26:10,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 03:26:10,387 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 03:26:10,387 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 03:26:10,387 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 03:26:10,387 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 03:26:10,388 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 03:26:10,388 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 03:26:10,388 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 03:26:10,388 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 03:26:10,680 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 03:26:10,693 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 03:26:10,696 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 03:26:10,698 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 03:26:10,698 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 03:26:10,699 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-15 03:26:10,758 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f91d91f7b/c2310f47d42143f9b4706951313cd8ad/FLAG69ebc2979 [2020-10-15 03:26:11,378 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 03:26:11,379 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-15 03:26:11,448 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f91d91f7b/c2310f47d42143f9b4706951313cd8ad/FLAG69ebc2979 [2020-10-15 03:26:11,533 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f91d91f7b/c2310f47d42143f9b4706951313cd8ad [2020-10-15 03:26:11,542 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 03:26:11,544 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 03:26:11,545 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 03:26:11,545 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 03:26:11,550 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 03:26:11,551 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:26:11" (1/1) ... [2020-10-15 03:26:11,554 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d9260ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:26:11, skipping insertion in model container [2020-10-15 03:26:11,555 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:26:11" (1/1) ... [2020-10-15 03:26:11,564 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 03:26:11,682 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 03:26:12,584 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 03:26:12,598 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 03:26:12,914 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 03:26:12,937 INFO L208 MainTranslator]: Completed translation [2020-10-15 03:26:12,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:26:12 WrapperNode [2020-10-15 03:26:12,937 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 03:26:12,938 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 03:26:12,938 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 03:26:12,938 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 03:26:12,953 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:26:12" (1/1) ... [2020-10-15 03:26:12,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:26:12" (1/1) ... [2020-10-15 03:26:12,981 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:26:12" (1/1) ... [2020-10-15 03:26:12,982 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:26:12" (1/1) ... [2020-10-15 03:26:13,042 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:26:12" (1/1) ... [2020-10-15 03:26:13,102 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:26:12" (1/1) ... [2020-10-15 03:26:13,125 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:26:12" (1/1) ... [2020-10-15 03:26:13,141 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 03:26:13,142 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 03:26:13,142 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 03:26:13,142 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 03:26:13,143 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:26:12" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 03:26:13,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 03:26:13,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 03:26:13,221 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 03:26:13,221 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 03:26:13,222 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 03:26:13,222 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 03:26:13,222 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 03:26:13,222 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-15 03:26:13,222 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-15 03:26:13,223 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 03:26:13,223 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 03:26:13,223 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-15 03:26:13,223 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-15 03:26:13,223 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-15 03:26:13,224 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-15 03:26:13,224 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-15 03:26:13,224 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-15 03:26:13,224 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-15 03:26:13,224 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-15 03:26:13,225 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-15 03:26:13,225 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 03:26:13,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 03:26:13,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 03:26:15,281 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 03:26:15,281 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-15 03:26:15,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:26:15 BoogieIcfgContainer [2020-10-15 03:26:15,296 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 03:26:15,300 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 03:26:15,300 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 03:26:15,303 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 03:26:15,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:26:11" (1/3) ... [2020-10-15 03:26:15,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39e6fb84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:26:15, skipping insertion in model container [2020-10-15 03:26:15,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:26:12" (2/3) ... [2020-10-15 03:26:15,306 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39e6fb84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:26:15, skipping insertion in model container [2020-10-15 03:26:15,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:26:15" (3/3) ... [2020-10-15 03:26:15,309 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-15 03:26:15,319 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 03:26:15,328 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2020-10-15 03:26:15,340 INFO L251 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2020-10-15 03:26:15,366 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 03:26:15,367 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 03:26:15,367 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 03:26:15,367 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 03:26:15,367 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 03:26:15,367 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 03:26:15,367 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 03:26:15,367 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 03:26:15,400 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states. [2020-10-15 03:26:15,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-15 03:26:15,421 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:26:15,422 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] [2020-10-15 03:26:15,423 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:26:15,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:26:15,429 INFO L82 PathProgramCache]: Analyzing trace with hash 400936191, now seen corresponding path program 1 times [2020-10-15 03:26:15,438 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:26:15,438 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1372252411] [2020-10-15 03:26:15,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:26:15,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:26:15,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:16,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:16,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:16,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:16,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:16,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:17,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:17,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:17,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:17,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:18,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:20,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:26:20,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-15 03:26:20,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-15 03:26:20,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-15 03:26:20,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:26:20,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:26:20,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:26:20,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:26:20,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-15 03:26:20,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-15 03:26:21,630 WARN L193 SmtUtils]: Spent 623.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:26:21,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:26:21,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:26:21,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:21,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:26:21,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:26:21,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:26:21,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-15 03:26:21,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:26:21,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:26:21,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:26:21,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:26:21,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:26:21,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:26:21,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:26:21,769 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1372252411] [2020-10-15 03:26:21,771 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:26:21,771 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:26:21,772 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981028275] [2020-10-15 03:26:21,779 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:26:21,779 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:26:21,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:26:21,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:26:21,800 INFO L87 Difference]: Start difference. First operand 631 states. Second operand 6 states. [2020-10-15 03:26:22,562 WARN L193 SmtUtils]: Spent 662.00 ms on a formula simplification that was a NOOP. DAG size: 307 [2020-10-15 03:26:26,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:26:26,846 INFO L93 Difference]: Finished difference Result 979 states and 1694 transitions. [2020-10-15 03:26:26,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 03:26:26,851 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 75 [2020-10-15 03:26:26,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:26:26,879 INFO L225 Difference]: With dead ends: 979 [2020-10-15 03:26:26,879 INFO L226 Difference]: Without dead ends: 547 [2020-10-15 03:26:26,888 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:26:26,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2020-10-15 03:26:26,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 547. [2020-10-15 03:26:26,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 547 states. [2020-10-15 03:26:26,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 681 transitions. [2020-10-15 03:26:26,976 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 681 transitions. Word has length 75 [2020-10-15 03:26:26,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:26:26,977 INFO L479 AbstractCegarLoop]: Abstraction has 547 states and 681 transitions. [2020-10-15 03:26:26,977 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:26:26,977 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 681 transitions. [2020-10-15 03:26:26,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-15 03:26:26,982 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:26:26,982 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:26:26,982 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 03:26:26,983 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:26:26,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:26:26,983 INFO L82 PathProgramCache]: Analyzing trace with hash 1549459471, now seen corresponding path program 1 times [2020-10-15 03:26:26,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:26:26,984 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [996180371] [2020-10-15 03:26:26,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:26:27,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:26:27,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:27,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:27,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:27,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:27,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:27,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:27,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:27,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:32,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:26:32,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-15 03:26:32,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 03:26:32,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-15 03:26:32,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:26:32,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:26:32,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:26:32,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:26:32,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-15 03:26:32,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:26:32,633 WARN L193 SmtUtils]: Spent 497.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:26:32,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:26:32,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:26:32,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:32,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:26:32,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:26:32,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:26:32,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-15 03:26:32,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:26:32,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:26:32,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:26:32,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:26:32,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:26:32,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:26:32,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:26:32,706 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [996180371] [2020-10-15 03:26:32,706 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:26:32,707 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:26:32,707 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751825650] [2020-10-15 03:26:32,708 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:26:32,709 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:26:32,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:26:32,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:26:32,709 INFO L87 Difference]: Start difference. First operand 547 states and 681 transitions. Second operand 6 states. [2020-10-15 03:26:33,231 WARN L193 SmtUtils]: Spent 467.00 ms on a formula simplification that was a NOOP. DAG size: 309 [2020-10-15 03:26:35,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:26:35,647 INFO L93 Difference]: Finished difference Result 1095 states and 1420 transitions. [2020-10-15 03:26:35,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 03:26:35,647 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 76 [2020-10-15 03:26:35,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:26:35,656 INFO L225 Difference]: With dead ends: 1095 [2020-10-15 03:26:35,656 INFO L226 Difference]: Without dead ends: 674 [2020-10-15 03:26:35,659 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:26:35,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2020-10-15 03:26:35,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 614. [2020-10-15 03:26:35,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 614 states. [2020-10-15 03:26:35,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 819 transitions. [2020-10-15 03:26:35,722 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 819 transitions. Word has length 76 [2020-10-15 03:26:35,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:26:35,722 INFO L479 AbstractCegarLoop]: Abstraction has 614 states and 819 transitions. [2020-10-15 03:26:35,723 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:26:35,723 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 819 transitions. [2020-10-15 03:26:35,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-15 03:26:35,726 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:26:35,726 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:26:35,726 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 03:26:35,727 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:26:35,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:26:35,727 INFO L82 PathProgramCache]: Analyzing trace with hash -1414726716, now seen corresponding path program 1 times [2020-10-15 03:26:35,727 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:26:35,728 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [544146123] [2020-10-15 03:26:35,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:26:35,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:26:35,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:35,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:35,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:36,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:36,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:40,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:40,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:40,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:40,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:26:40,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-15 03:26:40,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 03:26:40,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-15 03:26:40,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:26:40,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:26:40,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:26:40,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:26:40,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-15 03:26:40,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:26:41,314 WARN L193 SmtUtils]: Spent 438.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:26:41,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:26:41,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:26:41,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:41,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:26:41,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:26:41,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:26:41,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-15 03:26:41,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:26:41,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:26:41,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:26:41,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:26:41,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:26:41,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:26:41,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:26:41,399 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [544146123] [2020-10-15 03:26:41,400 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:26:41,400 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:26:41,401 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043595895] [2020-10-15 03:26:41,401 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:26:41,402 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:26:41,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:26:41,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:26:41,403 INFO L87 Difference]: Start difference. First operand 614 states and 819 transitions. Second operand 6 states. [2020-10-15 03:26:41,940 WARN L193 SmtUtils]: Spent 481.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-15 03:26:44,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:26:44,146 INFO L93 Difference]: Finished difference Result 1374 states and 1871 transitions. [2020-10-15 03:26:44,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 03:26:44,147 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 77 [2020-10-15 03:26:44,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:26:44,154 INFO L225 Difference]: With dead ends: 1374 [2020-10-15 03:26:44,154 INFO L226 Difference]: Without dead ends: 854 [2020-10-15 03:26:44,156 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:26:44,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2020-10-15 03:26:44,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 794. [2020-10-15 03:26:44,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 794 states. [2020-10-15 03:26:44,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1095 transitions. [2020-10-15 03:26:44,204 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1095 transitions. Word has length 77 [2020-10-15 03:26:44,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:26:44,204 INFO L479 AbstractCegarLoop]: Abstraction has 794 states and 1095 transitions. [2020-10-15 03:26:44,204 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:26:44,205 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1095 transitions. [2020-10-15 03:26:44,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-15 03:26:44,207 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:26:44,207 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:26:44,207 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 03:26:44,207 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:26:44,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:26:44,208 INFO L82 PathProgramCache]: Analyzing trace with hash -274197178, now seen corresponding path program 1 times [2020-10-15 03:26:44,208 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:26:44,208 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2067558025] [2020-10-15 03:26:44,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:26:44,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:26:44,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:44,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:44,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:44,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:46,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:46,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:46,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:47,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:47,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:47,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:49,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:49,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:26:49,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-15 03:26:49,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-15 03:26:49,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-15 03:26:49,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:26:49,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:26:49,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:26:49,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-15 03:26:49,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 03:26:49,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 03:26:49,973 WARN L193 SmtUtils]: Spent 619.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:26:49,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:26:49,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:26:49,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:49,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:26:49,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:26:49,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:26:49,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 03:26:50,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:26:50,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:26:50,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:26:50,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:26:50,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:26:50,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:26:50,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:26:50,039 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2067558025] [2020-10-15 03:26:50,039 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:26:50,039 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 03:26:50,040 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347165079] [2020-10-15 03:26:50,040 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:26:50,041 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:26:50,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:26:50,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:26:50,041 INFO L87 Difference]: Start difference. First operand 794 states and 1095 transitions. Second operand 6 states. [2020-10-15 03:26:50,646 WARN L193 SmtUtils]: Spent 526.00 ms on a formula simplification that was a NOOP. DAG size: 302 [2020-10-15 03:26:54,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:26:54,900 INFO L93 Difference]: Finished difference Result 3890 states and 5650 transitions. [2020-10-15 03:26:54,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-15 03:26:54,901 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 78 [2020-10-15 03:26:54,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:26:54,919 INFO L225 Difference]: With dead ends: 3890 [2020-10-15 03:26:54,920 INFO L226 Difference]: Without dead ends: 3580 [2020-10-15 03:26:54,922 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-15 03:26:54,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3580 states. [2020-10-15 03:26:55,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3580 to 2272. [2020-10-15 03:26:55,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2272 states. [2020-10-15 03:26:55,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2272 states to 2272 states and 3308 transitions. [2020-10-15 03:26:55,062 INFO L78 Accepts]: Start accepts. Automaton has 2272 states and 3308 transitions. Word has length 78 [2020-10-15 03:26:55,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:26:55,064 INFO L479 AbstractCegarLoop]: Abstraction has 2272 states and 3308 transitions. [2020-10-15 03:26:55,064 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:26:55,065 INFO L276 IsEmpty]: Start isEmpty. Operand 2272 states and 3308 transitions. [2020-10-15 03:26:55,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-15 03:26:55,069 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:26:55,069 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:26:55,069 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 03:26:55,070 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:26:55,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:26:55,070 INFO L82 PathProgramCache]: Analyzing trace with hash -1484333420, now seen corresponding path program 1 times [2020-10-15 03:26:55,070 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:26:55,071 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [821340260] [2020-10-15 03:26:55,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:26:55,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:26:55,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:55,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:55,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:55,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:56,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:56,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:56,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:57,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:26:57,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:00,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:00,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:27:00,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-15 03:27:00,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-15 03:27:00,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5066 [2020-10-15 03:27:00,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:27:00,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:27:00,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:27:00,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:27:00,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-15 03:27:00,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:27:00,857 WARN L193 SmtUtils]: Spent 513.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:27:00,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:27:00,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:27:00,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:00,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:27:00,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:27:00,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:27:00,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-15 03:27:00,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:27:00,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:27:00,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:27:00,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:27:00,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:27:00,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:27:00,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:27:00,932 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [821340260] [2020-10-15 03:27:00,932 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:27:00,932 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:27:00,933 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845130120] [2020-10-15 03:27:00,933 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:27:00,934 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:27:00,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:27:00,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:27:00,935 INFO L87 Difference]: Start difference. First operand 2272 states and 3308 transitions. Second operand 8 states. [2020-10-15 03:27:01,706 WARN L193 SmtUtils]: Spent 666.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2020-10-15 03:27:04,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:27:04,859 INFO L93 Difference]: Finished difference Result 5446 states and 8139 transitions. [2020-10-15 03:27:04,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 03:27:04,859 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 78 [2020-10-15 03:27:04,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:27:04,882 INFO L225 Difference]: With dead ends: 5446 [2020-10-15 03:27:04,883 INFO L226 Difference]: Without dead ends: 4320 [2020-10-15 03:27:04,888 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2020-10-15 03:27:04,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4320 states. [2020-10-15 03:27:05,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4320 to 2272. [2020-10-15 03:27:05,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2272 states. [2020-10-15 03:27:05,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2272 states to 2272 states and 3306 transitions. [2020-10-15 03:27:05,053 INFO L78 Accepts]: Start accepts. Automaton has 2272 states and 3306 transitions. Word has length 78 [2020-10-15 03:27:05,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:27:05,054 INFO L479 AbstractCegarLoop]: Abstraction has 2272 states and 3306 transitions. [2020-10-15 03:27:05,054 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:27:05,054 INFO L276 IsEmpty]: Start isEmpty. Operand 2272 states and 3306 transitions. [2020-10-15 03:27:05,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-15 03:27:05,057 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:27:05,058 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:27:05,058 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 03:27:05,058 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:27:05,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:27:05,059 INFO L82 PathProgramCache]: Analyzing trace with hash 1697999410, now seen corresponding path program 1 times [2020-10-15 03:27:05,059 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:27:05,061 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [397348263] [2020-10-15 03:27:05,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:27:05,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:27:05,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:05,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:05,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:05,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:05,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:05,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:06,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:09,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:10,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:10,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:27:10,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-15 03:27:10,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-15 03:27:10,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-15 03:27:10,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:27:10,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:27:10,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 03:27:10,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-15 03:27:10,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-15 03:27:10,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:27:10,644 WARN L193 SmtUtils]: Spent 484.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:27:10,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:27:10,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:27:10,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:10,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:27:10,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:27:10,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:27:10,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 03:27:10,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:27:10,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:27:10,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:27:10,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:27:10,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:27:10,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:27:10,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:27:10,695 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [397348263] [2020-10-15 03:27:10,696 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:27:10,696 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 03:27:10,696 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627278192] [2020-10-15 03:27:10,697 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 03:27:10,697 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:27:10,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 03:27:10,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:27:10,698 INFO L87 Difference]: Start difference. First operand 2272 states and 3306 transitions. Second operand 6 states. [2020-10-15 03:27:11,202 WARN L193 SmtUtils]: Spent 455.00 ms on a formula simplification that was a NOOP. DAG size: 302 [2020-10-15 03:27:15,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:27:15,750 INFO L93 Difference]: Finished difference Result 4244 states and 6151 transitions. [2020-10-15 03:27:15,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-15 03:27:15,751 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 78 [2020-10-15 03:27:15,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:27:15,766 INFO L225 Difference]: With dead ends: 4244 [2020-10-15 03:27:15,767 INFO L226 Difference]: Without dead ends: 3648 [2020-10-15 03:27:15,770 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-15 03:27:15,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3648 states. [2020-10-15 03:27:15,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3648 to 2192. [2020-10-15 03:27:15,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2192 states. [2020-10-15 03:27:15,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2192 states to 2192 states and 3182 transitions. [2020-10-15 03:27:15,900 INFO L78 Accepts]: Start accepts. Automaton has 2192 states and 3182 transitions. Word has length 78 [2020-10-15 03:27:15,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:27:15,900 INFO L479 AbstractCegarLoop]: Abstraction has 2192 states and 3182 transitions. [2020-10-15 03:27:15,900 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 03:27:15,900 INFO L276 IsEmpty]: Start isEmpty. Operand 2192 states and 3182 transitions. [2020-10-15 03:27:15,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-15 03:27:15,904 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:27:15,904 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:27:15,904 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 03:27:15,904 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:27:15,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:27:15,905 INFO L82 PathProgramCache]: Analyzing trace with hash 700673447, now seen corresponding path program 1 times [2020-10-15 03:27:15,905 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:27:15,905 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1643668743] [2020-10-15 03:27:15,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:27:15,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:27:15,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:15,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:16,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:16,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:16,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:16,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:16,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:16,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:16,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:16,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:19,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:19,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:20,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:27:20,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-15 03:27:20,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-15 03:27:20,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-15 03:27:20,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:27:20,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:27:20,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 03:27:20,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:27:20,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-15 03:27:20,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:27:21,600 WARN L193 SmtUtils]: Spent 562.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:27:21,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:27:21,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:27:21,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:21,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:27:21,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:27:21,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:27:21,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 03:27:21,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:27:21,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:27:21,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:27:21,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:27:21,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:27:21,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:27:21,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:27:21,660 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1643668743] [2020-10-15 03:27:21,661 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:27:21,661 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 03:27:21,661 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929951644] [2020-10-15 03:27:21,662 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 03:27:21,662 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:27:21,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 03:27:21,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-15 03:27:21,662 INFO L87 Difference]: Start difference. First operand 2192 states and 3182 transitions. Second operand 7 states. [2020-10-15 03:27:22,213 WARN L193 SmtUtils]: Spent 487.00 ms on a formula simplification that was a NOOP. DAG size: 311 [2020-10-15 03:27:24,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:27:24,725 INFO L93 Difference]: Finished difference Result 4816 states and 7029 transitions. [2020-10-15 03:27:24,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 03:27:24,725 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 78 [2020-10-15 03:27:24,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:27:24,739 INFO L225 Difference]: With dead ends: 4816 [2020-10-15 03:27:24,739 INFO L226 Difference]: Without dead ends: 3442 [2020-10-15 03:27:24,743 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-15 03:27:24,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3442 states. [2020-10-15 03:27:24,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3442 to 2192. [2020-10-15 03:27:24,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2192 states. [2020-10-15 03:27:24,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2192 states to 2192 states and 3180 transitions. [2020-10-15 03:27:24,919 INFO L78 Accepts]: Start accepts. Automaton has 2192 states and 3180 transitions. Word has length 78 [2020-10-15 03:27:24,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:27:24,919 INFO L479 AbstractCegarLoop]: Abstraction has 2192 states and 3180 transitions. [2020-10-15 03:27:24,919 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 03:27:24,919 INFO L276 IsEmpty]: Start isEmpty. Operand 2192 states and 3180 transitions. [2020-10-15 03:27:24,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-15 03:27:24,923 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:27:24,923 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:27:24,923 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 03:27:24,923 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:27:24,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:27:24,924 INFO L82 PathProgramCache]: Analyzing trace with hash -954298429, now seen corresponding path program 1 times [2020-10-15 03:27:24,924 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:27:24,925 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [762951504] [2020-10-15 03:27:24,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:27:24,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:27:24,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:25,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:25,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:25,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:25,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:26,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:26,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:27,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:27,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:27,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:27,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:27,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:27,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:28,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:28,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:29,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:29,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:27:29,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-15 03:27:29,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-15 03:27:29,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-15 03:27:29,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:27:29,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:27:29,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:27:29,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:27:29,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-15 03:27:29,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:27:30,542 WARN L193 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:27:30,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:27:30,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:27:30,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:30,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:27:30,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:27:30,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:27:30,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 03:27:30,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:27:30,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:27:30,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:27:30,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:27:30,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:27:30,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:27:30,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:27:30,590 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [762951504] [2020-10-15 03:27:30,590 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:27:30,590 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:27:30,591 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628498329] [2020-10-15 03:27:30,591 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:27:30,591 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:27:30,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:27:30,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:27:30,592 INFO L87 Difference]: Start difference. First operand 2192 states and 3180 transitions. Second operand 8 states. [2020-10-15 03:27:31,175 WARN L193 SmtUtils]: Spent 514.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2020-10-15 03:27:35,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:27:35,709 INFO L93 Difference]: Finished difference Result 4046 states and 5956 transitions. [2020-10-15 03:27:35,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 03:27:35,710 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 79 [2020-10-15 03:27:35,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:27:35,723 INFO L225 Difference]: With dead ends: 4046 [2020-10-15 03:27:35,723 INFO L226 Difference]: Without dead ends: 3040 [2020-10-15 03:27:35,727 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2020-10-15 03:27:35,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3040 states. [2020-10-15 03:27:35,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3040 to 2192. [2020-10-15 03:27:35,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2192 states. [2020-10-15 03:27:35,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2192 states to 2192 states and 3175 transitions. [2020-10-15 03:27:35,871 INFO L78 Accepts]: Start accepts. Automaton has 2192 states and 3175 transitions. Word has length 79 [2020-10-15 03:27:35,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:27:35,871 INFO L479 AbstractCegarLoop]: Abstraction has 2192 states and 3175 transitions. [2020-10-15 03:27:35,871 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:27:35,871 INFO L276 IsEmpty]: Start isEmpty. Operand 2192 states and 3175 transitions. [2020-10-15 03:27:35,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-15 03:27:35,874 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:27:35,875 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] [2020-10-15 03:27:35,875 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 03:27:35,875 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:27:35,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:27:35,875 INFO L82 PathProgramCache]: Analyzing trace with hash 308994357, now seen corresponding path program 1 times [2020-10-15 03:27:35,876 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:27:35,876 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [992651908] [2020-10-15 03:27:35,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:27:35,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:27:35,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:35,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:35,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:36,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:37,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:38,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:38,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:40,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:27:40,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-15 03:27:40,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 03:27:40,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-15 03:27:40,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:27:40,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:27:40,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 03:27:40,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:27:40,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-15 03:27:40,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:27:41,477 WARN L193 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:27:41,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:27:41,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:27:41,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:41,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:27:41,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:27:41,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:27:41,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 03:27:41,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:27:41,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:27:41,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:27:41,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:27:41,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:27:41,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:27:41,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:27:41,516 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [992651908] [2020-10-15 03:27:41,516 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:27:41,516 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 03:27:41,517 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7237208] [2020-10-15 03:27:41,517 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 03:27:41,517 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:27:41,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 03:27:41,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:27:41,518 INFO L87 Difference]: Start difference. First operand 2192 states and 3175 transitions. Second operand 9 states. [2020-10-15 03:27:42,050 WARN L193 SmtUtils]: Spent 483.00 ms on a formula simplification that was a NOOP. DAG size: 308 [2020-10-15 03:27:44,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:27:44,489 INFO L93 Difference]: Finished difference Result 3714 states and 5487 transitions. [2020-10-15 03:27:44,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 03:27:44,490 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 80 [2020-10-15 03:27:44,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:27:44,499 INFO L225 Difference]: With dead ends: 3714 [2020-10-15 03:27:44,499 INFO L226 Difference]: Without dead ends: 2722 [2020-10-15 03:27:44,501 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2020-10-15 03:27:44,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2722 states. [2020-10-15 03:27:44,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2722 to 2132. [2020-10-15 03:27:44,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2132 states. [2020-10-15 03:27:44,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2132 states to 2132 states and 3086 transitions. [2020-10-15 03:27:44,645 INFO L78 Accepts]: Start accepts. Automaton has 2132 states and 3086 transitions. Word has length 80 [2020-10-15 03:27:44,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:27:44,645 INFO L479 AbstractCegarLoop]: Abstraction has 2132 states and 3086 transitions. [2020-10-15 03:27:44,645 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 03:27:44,645 INFO L276 IsEmpty]: Start isEmpty. Operand 2132 states and 3086 transitions. [2020-10-15 03:27:44,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-15 03:27:44,649 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:27:44,649 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] [2020-10-15 03:27:44,649 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 03:27:44,649 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:27:44,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:27:44,650 INFO L82 PathProgramCache]: Analyzing trace with hash -1620162155, now seen corresponding path program 1 times [2020-10-15 03:27:44,650 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:27:44,650 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [153752792] [2020-10-15 03:27:44,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:27:44,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:27:44,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:44,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:44,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:45,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:45,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:45,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:45,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:47,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:47,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:49,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:27:49,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-15 03:27:49,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-15 03:27:49,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-15 03:27:49,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:27:49,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:27:49,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:27:49,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:27:49,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-15 03:27:49,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:27:50,220 WARN L193 SmtUtils]: Spent 459.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:27:50,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:27:50,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:27:50,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:50,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:27:50,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:27:50,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:27:50,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-15 03:27:50,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:27:50,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:27:50,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:27:50,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:27:50,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:27:50,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:27:50,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:27:50,297 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [153752792] [2020-10-15 03:27:50,298 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:27:50,298 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 03:27:50,298 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895826609] [2020-10-15 03:27:50,298 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:27:50,299 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:27:50,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:27:50,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:27:50,299 INFO L87 Difference]: Start difference. First operand 2132 states and 3086 transitions. Second operand 8 states. [2020-10-15 03:27:50,808 WARN L193 SmtUtils]: Spent 445.00 ms on a formula simplification that was a NOOP. DAG size: 305 [2020-10-15 03:27:53,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:27:53,311 INFO L93 Difference]: Finished difference Result 4873 states and 7203 transitions. [2020-10-15 03:27:53,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 03:27:53,311 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 80 [2020-10-15 03:27:53,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:27:53,329 INFO L225 Difference]: With dead ends: 4873 [2020-10-15 03:27:53,329 INFO L226 Difference]: Without dead ends: 3839 [2020-10-15 03:27:53,333 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-15 03:27:53,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3839 states. [2020-10-15 03:27:53,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3839 to 2180. [2020-10-15 03:27:53,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2180 states. [2020-10-15 03:27:53,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2180 states to 2180 states and 3137 transitions. [2020-10-15 03:27:53,492 INFO L78 Accepts]: Start accepts. Automaton has 2180 states and 3137 transitions. Word has length 80 [2020-10-15 03:27:53,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:27:53,492 INFO L479 AbstractCegarLoop]: Abstraction has 2180 states and 3137 transitions. [2020-10-15 03:27:53,492 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:27:53,492 INFO L276 IsEmpty]: Start isEmpty. Operand 2180 states and 3137 transitions. [2020-10-15 03:27:53,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-15 03:27:53,494 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:27:53,494 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] [2020-10-15 03:27:53,495 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 03:27:53,495 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:27:53,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:27:53,495 INFO L82 PathProgramCache]: Analyzing trace with hash 438445102, now seen corresponding path program 1 times [2020-10-15 03:27:53,496 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:27:53,496 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [340405562] [2020-10-15 03:27:53,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:27:53,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:27:53,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:53,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:53,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:54,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:54,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:54,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:54,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:54,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:54,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:55,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:55,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:56,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:58,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:27:58,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-15 03:27:58,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-15 03:27:58,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-15 03:27:58,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:27:58,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:27:58,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:27:58,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:27:58,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-15 03:27:58,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:27:59,054 WARN L193 SmtUtils]: Spent 454.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:27:59,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:27:59,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:27:59,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:27:59,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:27:59,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:27:59,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:27:59,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-15 03:27:59,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:27:59,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:27:59,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:27:59,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:27:59,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:27:59,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:27:59,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:27:59,119 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [340405562] [2020-10-15 03:27:59,120 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:27:59,120 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 03:27:59,120 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12950587] [2020-10-15 03:27:59,120 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:27:59,121 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:27:59,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:27:59,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:27:59,123 INFO L87 Difference]: Start difference. First operand 2180 states and 3137 transitions. Second operand 8 states. [2020-10-15 03:27:59,647 WARN L193 SmtUtils]: Spent 462.00 ms on a formula simplification that was a NOOP. DAG size: 305 [2020-10-15 03:28:02,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:28:02,856 INFO L93 Difference]: Finished difference Result 7837 states and 11649 transitions. [2020-10-15 03:28:02,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 03:28:02,857 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 80 [2020-10-15 03:28:02,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:28:02,876 INFO L225 Difference]: With dead ends: 7837 [2020-10-15 03:28:02,876 INFO L226 Difference]: Without dead ends: 6737 [2020-10-15 03:28:02,881 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-15 03:28:02,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6737 states. [2020-10-15 03:28:03,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6737 to 2092. [2020-10-15 03:28:03,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2092 states. [2020-10-15 03:28:03,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2092 states to 2092 states and 2997 transitions. [2020-10-15 03:28:03,064 INFO L78 Accepts]: Start accepts. Automaton has 2092 states and 2997 transitions. Word has length 80 [2020-10-15 03:28:03,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:28:03,064 INFO L479 AbstractCegarLoop]: Abstraction has 2092 states and 2997 transitions. [2020-10-15 03:28:03,064 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:28:03,065 INFO L276 IsEmpty]: Start isEmpty. Operand 2092 states and 2997 transitions. [2020-10-15 03:28:03,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-15 03:28:03,067 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:28:03,067 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] [2020-10-15 03:28:03,067 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 03:28:03,068 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:28:03,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:28:03,068 INFO L82 PathProgramCache]: Analyzing trace with hash 1106890953, now seen corresponding path program 1 times [2020-10-15 03:28:03,068 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:28:03,069 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1989143092] [2020-10-15 03:28:03,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:28:03,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:28:03,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:03,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:03,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:03,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:03,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:03,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:03,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:03,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:05,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:05,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:06,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:06,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:06,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:06,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:06,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:06,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:07,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:07,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:07,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:08,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:28:08,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-15 03:28:08,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 19 [2020-10-15 03:28:08,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-15 03:28:08,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:28:08,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:28:08,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:28:08,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:28:08,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-15 03:28:08,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:28:08,599 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:28:08,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:28:08,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:28:08,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:08,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:28:08,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:28:08,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:28:08,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 03:28:08,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:28:08,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:28:08,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:28:08,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:28:08,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:28:08,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:28:08,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:28:08,664 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1989143092] [2020-10-15 03:28:08,664 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:28:08,664 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:28:08,664 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615489070] [2020-10-15 03:28:08,665 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:28:08,665 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:28:08,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:28:08,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:28:08,666 INFO L87 Difference]: Start difference. First operand 2092 states and 2997 transitions. Second operand 8 states. [2020-10-15 03:28:09,223 WARN L193 SmtUtils]: Spent 496.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2020-10-15 03:28:13,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:28:13,402 INFO L93 Difference]: Finished difference Result 5406 states and 7930 transitions. [2020-10-15 03:28:13,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 03:28:13,403 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 80 [2020-10-15 03:28:13,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:28:13,412 INFO L225 Difference]: With dead ends: 5406 [2020-10-15 03:28:13,413 INFO L226 Difference]: Without dead ends: 4124 [2020-10-15 03:28:13,417 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2020-10-15 03:28:13,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4124 states. [2020-10-15 03:28:13,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4124 to 2092. [2020-10-15 03:28:13,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2092 states. [2020-10-15 03:28:13,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2092 states to 2092 states and 2993 transitions. [2020-10-15 03:28:13,651 INFO L78 Accepts]: Start accepts. Automaton has 2092 states and 2993 transitions. Word has length 80 [2020-10-15 03:28:13,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:28:13,651 INFO L479 AbstractCegarLoop]: Abstraction has 2092 states and 2993 transitions. [2020-10-15 03:28:13,651 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:28:13,651 INFO L276 IsEmpty]: Start isEmpty. Operand 2092 states and 2993 transitions. [2020-10-15 03:28:13,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-15 03:28:13,654 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:28:13,654 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] [2020-10-15 03:28:13,654 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 03:28:13,655 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:28:13,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:28:13,655 INFO L82 PathProgramCache]: Analyzing trace with hash -65240491, now seen corresponding path program 1 times [2020-10-15 03:28:13,655 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:28:13,655 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1813874933] [2020-10-15 03:28:13,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:28:13,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:28:13,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:13,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:13,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:14,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:15,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:15,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:15,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:15,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:18,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:28:18,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-15 03:28:18,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 03:28:18,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-15 03:28:18,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:28:18,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:28:18,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:28:18,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:28:18,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-15 03:28:18,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:28:19,348 WARN L193 SmtUtils]: Spent 486.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:28:19,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:28:19,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:28:19,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:19,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:28:19,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:28:19,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:28:19,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 03:28:19,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:28:19,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:28:19,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:28:19,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:28:19,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:28:19,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:28:19,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:28:19,399 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1813874933] [2020-10-15 03:28:19,399 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:28:19,400 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:28:19,400 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869703523] [2020-10-15 03:28:19,400 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:28:19,400 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:28:19,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:28:19,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:28:19,401 INFO L87 Difference]: Start difference. First operand 2092 states and 2993 transitions. Second operand 8 states. [2020-10-15 03:28:19,957 WARN L193 SmtUtils]: Spent 485.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2020-10-15 03:28:22,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:28:22,595 INFO L93 Difference]: Finished difference Result 2665 states and 3812 transitions. [2020-10-15 03:28:22,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 03:28:22,596 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 81 [2020-10-15 03:28:22,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:28:22,603 INFO L225 Difference]: With dead ends: 2665 [2020-10-15 03:28:22,603 INFO L226 Difference]: Without dead ends: 2658 [2020-10-15 03:28:22,604 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-15 03:28:22,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2658 states. [2020-10-15 03:28:22,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2658 to 2092. [2020-10-15 03:28:22,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2092 states. [2020-10-15 03:28:22,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2092 states to 2092 states and 2992 transitions. [2020-10-15 03:28:22,815 INFO L78 Accepts]: Start accepts. Automaton has 2092 states and 2992 transitions. Word has length 81 [2020-10-15 03:28:22,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:28:22,816 INFO L479 AbstractCegarLoop]: Abstraction has 2092 states and 2992 transitions. [2020-10-15 03:28:22,816 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:28:22,816 INFO L276 IsEmpty]: Start isEmpty. Operand 2092 states and 2992 transitions. [2020-10-15 03:28:22,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-15 03:28:22,818 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:28:22,819 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] [2020-10-15 03:28:22,819 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-15 03:28:22,819 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:28:22,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:28:22,820 INFO L82 PathProgramCache]: Analyzing trace with hash -1139842721, now seen corresponding path program 1 times [2020-10-15 03:28:22,820 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:28:22,820 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1522608121] [2020-10-15 03:28:22,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:28:22,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:28:22,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:22,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:23,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:23,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:23,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:24,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:24,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:24,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:25,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:25,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:25,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:26,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:27,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:27,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:27,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:28:27,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-15 03:28:27,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-15 03:28:27,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-15 03:28:27,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:28:27,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:28:27,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:28:27,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:28:27,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-15 03:28:27,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:28:28,388 WARN L193 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:28:28,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:28:28,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:28:28,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:28,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:28:28,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:28:28,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:28:28,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 03:28:28,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:28:28,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:28:28,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:28:28,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:28:28,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:28:28,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:28:28,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:28:28,423 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1522608121] [2020-10-15 03:28:28,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:28:28,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:28:28,423 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667718101] [2020-10-15 03:28:28,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:28:28,424 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:28:28,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:28:28,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:28:28,424 INFO L87 Difference]: Start difference. First operand 2092 states and 2992 transitions. Second operand 8 states. [2020-10-15 03:28:28,968 WARN L193 SmtUtils]: Spent 484.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2020-10-15 03:28:32,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:28:32,054 INFO L93 Difference]: Finished difference Result 5108 states and 7514 transitions. [2020-10-15 03:28:32,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 03:28:32,054 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 81 [2020-10-15 03:28:32,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:28:32,063 INFO L225 Difference]: With dead ends: 5108 [2020-10-15 03:28:32,063 INFO L226 Difference]: Without dead ends: 4128 [2020-10-15 03:28:32,066 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2020-10-15 03:28:32,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4128 states. [2020-10-15 03:28:32,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4128 to 2092. [2020-10-15 03:28:32,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2092 states. [2020-10-15 03:28:32,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2092 states to 2092 states and 2988 transitions. [2020-10-15 03:28:32,284 INFO L78 Accepts]: Start accepts. Automaton has 2092 states and 2988 transitions. Word has length 81 [2020-10-15 03:28:32,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:28:32,284 INFO L479 AbstractCegarLoop]: Abstraction has 2092 states and 2988 transitions. [2020-10-15 03:28:32,284 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:28:32,284 INFO L276 IsEmpty]: Start isEmpty. Operand 2092 states and 2988 transitions. [2020-10-15 03:28:32,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-15 03:28:32,287 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:28:32,287 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] [2020-10-15 03:28:32,287 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-15 03:28:32,287 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:28:32,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:28:32,288 INFO L82 PathProgramCache]: Analyzing trace with hash -303828117, now seen corresponding path program 1 times [2020-10-15 03:28:32,288 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:28:32,288 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2080942538] [2020-10-15 03:28:32,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:28:32,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:28:32,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:32,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:32,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:32,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:32,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:34,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:34,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:34,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:34,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:37,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:37,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:28:37,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-15 03:28:37,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-15 03:28:37,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-15 03:28:37,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:28:37,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:28:37,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 03:28:37,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:28:37,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-15 03:28:37,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:28:37,896 WARN L193 SmtUtils]: Spent 451.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:28:37,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:28:37,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:28:37,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:37,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:28:37,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:28:37,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:28:37,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 03:28:37,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:28:37,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:28:37,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:28:37,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:28:37,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:28:37,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:28:37,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:28:37,942 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2080942538] [2020-10-15 03:28:37,942 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:28:37,942 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 03:28:37,943 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316017599] [2020-10-15 03:28:37,943 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 03:28:37,943 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:28:37,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 03:28:37,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:28:37,943 INFO L87 Difference]: Start difference. First operand 2092 states and 2988 transitions. Second operand 9 states. [2020-10-15 03:28:38,471 WARN L193 SmtUtils]: Spent 482.00 ms on a formula simplification that was a NOOP. DAG size: 309 [2020-10-15 03:28:42,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:28:42,392 INFO L93 Difference]: Finished difference Result 3398 states and 4909 transitions. [2020-10-15 03:28:42,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 03:28:42,393 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 81 [2020-10-15 03:28:42,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:28:42,399 INFO L225 Difference]: With dead ends: 3398 [2020-10-15 03:28:42,399 INFO L226 Difference]: Without dead ends: 2844 [2020-10-15 03:28:42,401 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2020-10-15 03:28:42,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2844 states. [2020-10-15 03:28:42,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2844 to 2018. [2020-10-15 03:28:42,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2018 states. [2020-10-15 03:28:42,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2018 states to 2018 states and 2881 transitions. [2020-10-15 03:28:42,624 INFO L78 Accepts]: Start accepts. Automaton has 2018 states and 2881 transitions. Word has length 81 [2020-10-15 03:28:42,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:28:42,625 INFO L479 AbstractCegarLoop]: Abstraction has 2018 states and 2881 transitions. [2020-10-15 03:28:42,625 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 03:28:42,625 INFO L276 IsEmpty]: Start isEmpty. Operand 2018 states and 2881 transitions. [2020-10-15 03:28:42,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-15 03:28:42,627 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:28:42,628 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] [2020-10-15 03:28:42,628 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-15 03:28:42,630 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:28:42,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:28:42,630 INFO L82 PathProgramCache]: Analyzing trace with hash 578801943, now seen corresponding path program 1 times [2020-10-15 03:28:42,631 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:28:42,631 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [62002005] [2020-10-15 03:28:42,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:28:42,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:28:42,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:42,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:42,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:42,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:43,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:45,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:45,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:45,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:47,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:28:47,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-15 03:28:47,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 03:28:47,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-15 03:28:47,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:28:47,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:28:47,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:28:47,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:28:47,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-15 03:28:47,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:28:48,195 WARN L193 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:28:48,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:28:48,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:28:48,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:48,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:28:48,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:28:48,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:28:48,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 03:28:48,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:28:48,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:28:48,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:28:48,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:28:48,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:28:48,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:28:48,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:28:48,228 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [62002005] [2020-10-15 03:28:48,228 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:28:48,228 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:28:48,228 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698611384] [2020-10-15 03:28:48,229 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:28:48,229 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:28:48,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:28:48,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:28:48,230 INFO L87 Difference]: Start difference. First operand 2018 states and 2881 transitions. Second operand 8 states. [2020-10-15 03:28:48,781 WARN L193 SmtUtils]: Spent 489.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2020-10-15 03:28:51,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:28:51,815 INFO L93 Difference]: Finished difference Result 3327 states and 4812 transitions. [2020-10-15 03:28:51,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 03:28:51,816 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 81 [2020-10-15 03:28:51,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:28:51,820 INFO L225 Difference]: With dead ends: 3327 [2020-10-15 03:28:51,820 INFO L226 Difference]: Without dead ends: 3322 [2020-10-15 03:28:51,821 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2020-10-15 03:28:51,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3322 states. [2020-10-15 03:28:51,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3322 to 2018. [2020-10-15 03:28:51,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2018 states. [2020-10-15 03:28:51,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2018 states to 2018 states and 2879 transitions. [2020-10-15 03:28:51,968 INFO L78 Accepts]: Start accepts. Automaton has 2018 states and 2879 transitions. Word has length 81 [2020-10-15 03:28:51,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:28:51,968 INFO L479 AbstractCegarLoop]: Abstraction has 2018 states and 2879 transitions. [2020-10-15 03:28:51,968 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:28:51,968 INFO L276 IsEmpty]: Start isEmpty. Operand 2018 states and 2879 transitions. [2020-10-15 03:28:51,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-15 03:28:51,970 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:28:51,970 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] [2020-10-15 03:28:51,970 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-15 03:28:51,970 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:28:51,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:28:51,970 INFO L82 PathProgramCache]: Analyzing trace with hash -1349025201, now seen corresponding path program 1 times [2020-10-15 03:28:51,971 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:28:51,971 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1637763036] [2020-10-15 03:28:51,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:28:51,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:28:52,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:52,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:52,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:52,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:52,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:52,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:53,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:53,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:53,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:53,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:53,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:54,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:54,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:55,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:55,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:56,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:56,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:28:56,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-15 03:28:56,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-15 03:28:56,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-15 03:28:56,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:28:56,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:28:56,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:28:56,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:28:56,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-15 03:28:56,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:28:57,565 WARN L193 SmtUtils]: Spent 454.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:28:57,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:28:57,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:28:57,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:28:57,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:28:57,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:28:57,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:28:57,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 03:28:57,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:28:57,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:28:57,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:28:57,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:28:57,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:28:57,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:28:57,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:28:57,608 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1637763036] [2020-10-15 03:28:57,608 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:28:57,608 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:28:57,608 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848097590] [2020-10-15 03:28:57,609 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:28:57,609 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:28:57,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:28:57,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:28:57,609 INFO L87 Difference]: Start difference. First operand 2018 states and 2879 transitions. Second operand 8 states. [2020-10-15 03:28:58,118 WARN L193 SmtUtils]: Spent 461.00 ms on a formula simplification that was a NOOP. DAG size: 309 [2020-10-15 03:28:59,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:28:59,930 INFO L93 Difference]: Finished difference Result 4138 states and 6007 transitions. [2020-10-15 03:28:59,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 03:28:59,931 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 81 [2020-10-15 03:28:59,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:28:59,934 INFO L225 Difference]: With dead ends: 4138 [2020-10-15 03:28:59,934 INFO L226 Difference]: Without dead ends: 2984 [2020-10-15 03:28:59,936 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-10-15 03:28:59,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2984 states. [2020-10-15 03:29:00,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2984 to 1818. [2020-10-15 03:29:00,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1818 states. [2020-10-15 03:29:00,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1818 states to 1818 states and 2615 transitions. [2020-10-15 03:29:00,078 INFO L78 Accepts]: Start accepts. Automaton has 1818 states and 2615 transitions. Word has length 81 [2020-10-15 03:29:00,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:29:00,078 INFO L479 AbstractCegarLoop]: Abstraction has 1818 states and 2615 transitions. [2020-10-15 03:29:00,078 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:29:00,078 INFO L276 IsEmpty]: Start isEmpty. Operand 1818 states and 2615 transitions. [2020-10-15 03:29:00,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-15 03:29:00,079 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:29:00,079 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] [2020-10-15 03:29:00,079 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-15 03:29:00,079 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:29:00,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:29:00,080 INFO L82 PathProgramCache]: Analyzing trace with hash 1361943697, now seen corresponding path program 1 times [2020-10-15 03:29:00,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:29:00,080 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [160629604] [2020-10-15 03:29:00,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:29:00,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:29:00,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:00,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:00,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:00,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:00,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:00,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:01,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:01,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:01,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:02,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:02,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:02,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:03,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:03,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:03,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:04,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:05,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:29:05,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-15 03:29:05,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-15 03:29:05,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-15 03:29:05,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:29:05,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:29:05,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:29:05,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:29:05,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-15 03:29:05,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:29:05,713 WARN L193 SmtUtils]: Spent 476.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:29:05,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:29:05,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:29:05,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:05,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:29:05,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:29:05,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:29:05,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 03:29:05,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:29:05,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:29:05,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:29:05,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:29:05,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:29:05,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:29:05,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:29:05,745 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [160629604] [2020-10-15 03:29:05,746 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:29:05,746 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:29:05,746 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501492774] [2020-10-15 03:29:05,746 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:29:05,746 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:29:05,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:29:05,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:29:05,747 INFO L87 Difference]: Start difference. First operand 1818 states and 2615 transitions. Second operand 8 states. [2020-10-15 03:29:06,297 WARN L193 SmtUtils]: Spent 489.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2020-10-15 03:29:09,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:29:09,665 INFO L93 Difference]: Finished difference Result 3136 states and 4556 transitions. [2020-10-15 03:29:09,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 03:29:09,665 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 81 [2020-10-15 03:29:09,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:29:09,669 INFO L225 Difference]: With dead ends: 3136 [2020-10-15 03:29:09,669 INFO L226 Difference]: Without dead ends: 2606 [2020-10-15 03:29:09,670 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-15 03:29:09,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2606 states. [2020-10-15 03:29:09,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2606 to 1818. [2020-10-15 03:29:09,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1818 states. [2020-10-15 03:29:09,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1818 states to 1818 states and 2613 transitions. [2020-10-15 03:29:09,818 INFO L78 Accepts]: Start accepts. Automaton has 1818 states and 2613 transitions. Word has length 81 [2020-10-15 03:29:09,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:29:09,818 INFO L479 AbstractCegarLoop]: Abstraction has 1818 states and 2613 transitions. [2020-10-15 03:29:09,818 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:29:09,819 INFO L276 IsEmpty]: Start isEmpty. Operand 1818 states and 2613 transitions. [2020-10-15 03:29:09,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-15 03:29:09,820 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:29:09,820 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] [2020-10-15 03:29:09,820 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-15 03:29:09,820 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:29:09,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:29:09,821 INFO L82 PathProgramCache]: Analyzing trace with hash -1197956473, now seen corresponding path program 1 times [2020-10-15 03:29:09,821 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:29:09,821 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [129559818] [2020-10-15 03:29:09,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:29:09,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:29:09,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:09,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:09,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:10,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:10,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:10,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:11,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:11,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:11,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:11,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:12,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:12,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:12,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:13,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:14,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:14,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:14,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:29:14,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-15 03:29:14,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-15 03:29:14,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-15 03:29:14,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:29:14,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:29:14,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 03:29:14,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:29:14,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-15 03:29:14,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:29:15,422 WARN L193 SmtUtils]: Spent 447.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:29:15,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:29:15,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:29:15,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:15,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:29:15,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:29:15,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:29:15,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 03:29:15,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:29:15,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:29:15,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:29:15,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:29:15,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:29:15,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:29:15,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:29:15,463 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [129559818] [2020-10-15 03:29:15,463 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:29:15,463 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 03:29:15,463 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648570599] [2020-10-15 03:29:15,463 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 03:29:15,464 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:29:15,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 03:29:15,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:29:15,464 INFO L87 Difference]: Start difference. First operand 1818 states and 2613 transitions. Second operand 9 states. [2020-10-15 03:29:15,990 WARN L193 SmtUtils]: Spent 474.00 ms on a formula simplification that was a NOOP. DAG size: 308 [2020-10-15 03:29:18,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:29:18,762 INFO L93 Difference]: Finished difference Result 3062 states and 4475 transitions. [2020-10-15 03:29:18,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 03:29:18,763 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 81 [2020-10-15 03:29:18,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:29:18,766 INFO L225 Difference]: With dead ends: 3062 [2020-10-15 03:29:18,766 INFO L226 Difference]: Without dead ends: 2520 [2020-10-15 03:29:18,767 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2020-10-15 03:29:18,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2520 states. [2020-10-15 03:29:18,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2520 to 1762. [2020-10-15 03:29:18,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1762 states. [2020-10-15 03:29:18,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1762 states to 1762 states and 2532 transitions. [2020-10-15 03:29:18,909 INFO L78 Accepts]: Start accepts. Automaton has 1762 states and 2532 transitions. Word has length 81 [2020-10-15 03:29:18,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:29:18,909 INFO L479 AbstractCegarLoop]: Abstraction has 1762 states and 2532 transitions. [2020-10-15 03:29:18,909 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 03:29:18,910 INFO L276 IsEmpty]: Start isEmpty. Operand 1762 states and 2532 transitions. [2020-10-15 03:29:18,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-15 03:29:18,911 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:29:18,911 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] [2020-10-15 03:29:18,911 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-15 03:29:18,911 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:29:18,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:29:18,911 INFO L82 PathProgramCache]: Analyzing trace with hash -1900101272, now seen corresponding path program 1 times [2020-10-15 03:29:18,911 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:29:18,912 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [431888348] [2020-10-15 03:29:18,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:29:18,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:29:18,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:18,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:19,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:19,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:19,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:19,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:19,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:19,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:19,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:19,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:20,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:20,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:20,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:21,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:23,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:23,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:23,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:29:23,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-15 03:29:23,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-15 03:29:23,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-15 03:29:23,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:29:23,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:29:23,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:29:23,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 03:29:23,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-15 03:29:23,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:29:24,453 WARN L193 SmtUtils]: Spent 449.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:29:24,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:29:24,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:29:24,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:24,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:29:24,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:29:24,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:29:24,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-15 03:29:24,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:29:24,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:29:24,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:29:24,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:29:24,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 03:29:24,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:29:24,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:29:24,503 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [431888348] [2020-10-15 03:29:24,503 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:29:24,504 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 03:29:24,504 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712150871] [2020-10-15 03:29:24,504 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:29:24,504 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:29:24,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:29:24,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:29:24,505 INFO L87 Difference]: Start difference. First operand 1762 states and 2532 transitions. Second operand 8 states. [2020-10-15 03:29:25,032 WARN L193 SmtUtils]: Spent 471.00 ms on a formula simplification that was a NOOP. DAG size: 305 [2020-10-15 03:29:27,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:29:27,180 INFO L93 Difference]: Finished difference Result 5794 states and 8491 transitions. [2020-10-15 03:29:27,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 03:29:27,180 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 82 [2020-10-15 03:29:27,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:29:27,186 INFO L225 Difference]: With dead ends: 5794 [2020-10-15 03:29:27,186 INFO L226 Difference]: Without dead ends: 5008 [2020-10-15 03:29:27,188 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-15 03:29:27,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5008 states. [2020-10-15 03:29:27,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5008 to 1634. [2020-10-15 03:29:27,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1634 states. [2020-10-15 03:29:27,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1634 states to 1634 states and 2332 transitions. [2020-10-15 03:29:27,388 INFO L78 Accepts]: Start accepts. Automaton has 1634 states and 2332 transitions. Word has length 82 [2020-10-15 03:29:27,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:29:27,388 INFO L479 AbstractCegarLoop]: Abstraction has 1634 states and 2332 transitions. [2020-10-15 03:29:27,388 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:29:27,388 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states and 2332 transitions. [2020-10-15 03:29:27,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-15 03:29:27,389 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:29:27,389 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] [2020-10-15 03:29:27,389 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-15 03:29:27,389 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:29:27,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:29:27,390 INFO L82 PathProgramCache]: Analyzing trace with hash 612022146, now seen corresponding path program 1 times [2020-10-15 03:29:27,390 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:29:27,390 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1996592836] [2020-10-15 03:29:27,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:29:27,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:29:27,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:27,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:27,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:27,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:27,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:28,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:28,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:28,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:30,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:30,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:30,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:30,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:30,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:30,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:30,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:32,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:29:32,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-15 03:29:32,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-15 03:29:32,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-15 03:29:32,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:29:32,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:29:32,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 03:29:32,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:29:32,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-15 03:29:32,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:29:32,945 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:29:32,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:29:32,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:29:32,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:32,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:29:32,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:29:32,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:29:32,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 03:29:32,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:29:32,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:29:32,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:29:32,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:29:32,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:29:32,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:29:32,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:29:32,979 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1996592836] [2020-10-15 03:29:32,979 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:29:32,979 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 03:29:32,979 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252384580] [2020-10-15 03:29:32,980 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 03:29:32,980 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:29:32,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 03:29:32,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-15 03:29:32,980 INFO L87 Difference]: Start difference. First operand 1634 states and 2332 transitions. Second operand 8 states. [2020-10-15 03:29:33,502 WARN L193 SmtUtils]: Spent 469.00 ms on a formula simplification that was a NOOP. DAG size: 307 [2020-10-15 03:29:36,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:29:36,859 INFO L93 Difference]: Finished difference Result 12276 states and 18116 transitions. [2020-10-15 03:29:36,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-15 03:29:36,859 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 82 [2020-10-15 03:29:36,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:29:36,871 INFO L225 Difference]: With dead ends: 12276 [2020-10-15 03:29:36,871 INFO L226 Difference]: Without dead ends: 11022 [2020-10-15 03:29:36,875 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=87, Invalid=255, Unknown=0, NotChecked=0, Total=342 [2020-10-15 03:29:36,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11022 states. [2020-10-15 03:29:37,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11022 to 1738. [2020-10-15 03:29:37,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1738 states. [2020-10-15 03:29:37,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1738 states to 1738 states and 2456 transitions. [2020-10-15 03:29:37,087 INFO L78 Accepts]: Start accepts. Automaton has 1738 states and 2456 transitions. Word has length 82 [2020-10-15 03:29:37,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:29:37,087 INFO L479 AbstractCegarLoop]: Abstraction has 1738 states and 2456 transitions. [2020-10-15 03:29:37,087 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 03:29:37,087 INFO L276 IsEmpty]: Start isEmpty. Operand 1738 states and 2456 transitions. [2020-10-15 03:29:37,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-15 03:29:37,088 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:29:37,088 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 03:29:37,088 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-15 03:29:37,089 INFO L427 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:29:37,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:29:37,089 INFO L82 PathProgramCache]: Analyzing trace with hash -2055353485, now seen corresponding path program 1 times [2020-10-15 03:29:37,089 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:29:37,089 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [705985432] [2020-10-15 03:29:37,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:29:37,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:29:37,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:37,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:37,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:37,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:39,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:29:39,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-15 03:29:39,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 03:29:39,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2287 [2020-10-15 03:29:39,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:29:39,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:29:39,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 03:29:39,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:29:39,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-15 03:29:39,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:29:40,030 WARN L193 SmtUtils]: Spent 449.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:29:40,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:29:40,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:29:40,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:40,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:29:40,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:29:40,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:29:40,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 03:29:40,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:29:40,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:29:40,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:29:40,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:29:40,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:29:40,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:29:40,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:29:40,073 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [705985432] [2020-10-15 03:29:40,073 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:29:40,073 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 03:29:40,073 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541365853] [2020-10-15 03:29:40,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 03:29:40,073 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:29:40,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 03:29:40,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:29:40,074 INFO L87 Difference]: Start difference. First operand 1738 states and 2456 transitions. Second operand 9 states. [2020-10-15 03:29:40,631 WARN L193 SmtUtils]: Spent 503.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2020-10-15 03:29:42,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:29:42,741 INFO L93 Difference]: Finished difference Result 3708 states and 5430 transitions. [2020-10-15 03:29:42,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 03:29:42,742 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 83 [2020-10-15 03:29:42,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:29:42,746 INFO L225 Difference]: With dead ends: 3708 [2020-10-15 03:29:42,746 INFO L226 Difference]: Without dead ends: 3702 [2020-10-15 03:29:42,746 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2020-10-15 03:29:42,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3702 states. [2020-10-15 03:29:42,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3702 to 1732. [2020-10-15 03:29:42,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1732 states. [2020-10-15 03:29:42,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1732 states to 1732 states and 2435 transitions. [2020-10-15 03:29:42,936 INFO L78 Accepts]: Start accepts. Automaton has 1732 states and 2435 transitions. Word has length 83 [2020-10-15 03:29:42,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:29:42,936 INFO L479 AbstractCegarLoop]: Abstraction has 1732 states and 2435 transitions. [2020-10-15 03:29:42,936 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 03:29:42,936 INFO L276 IsEmpty]: Start isEmpty. Operand 1732 states and 2435 transitions. [2020-10-15 03:29:42,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-15 03:29:42,937 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:29:42,937 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] [2020-10-15 03:29:42,937 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-15 03:29:42,938 INFO L427 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:29:42,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:29:42,938 INFO L82 PathProgramCache]: Analyzing trace with hash -1657469748, now seen corresponding path program 1 times [2020-10-15 03:29:42,938 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:29:42,938 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [326172241] [2020-10-15 03:29:42,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:29:42,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:29:42,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:43,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:43,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:43,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:44,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:46,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:29:46,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-15 03:29:46,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 03:29:46,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3372 [2020-10-15 03:29:46,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:29:46,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:29:46,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 03:29:46,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:29:46,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-15 03:29:46,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:29:47,008 WARN L193 SmtUtils]: Spent 516.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:29:47,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:29:47,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:29:47,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:47,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:29:47,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:29:47,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:29:47,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 03:29:47,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:29:47,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:29:47,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:29:47,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:29:47,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:29:47,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:29:47,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:29:47,042 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [326172241] [2020-10-15 03:29:47,042 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:29:47,042 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 03:29:47,042 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031811392] [2020-10-15 03:29:47,043 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 03:29:47,043 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:29:47,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 03:29:47,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:29:47,043 INFO L87 Difference]: Start difference. First operand 1732 states and 2435 transitions. Second operand 9 states. [2020-10-15 03:29:47,574 WARN L193 SmtUtils]: Spent 475.00 ms on a formula simplification that was a NOOP. DAG size: 308 [2020-10-15 03:29:49,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:29:49,332 INFO L93 Difference]: Finished difference Result 3214 states and 4670 transitions. [2020-10-15 03:29:49,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-15 03:29:49,332 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 83 [2020-10-15 03:29:49,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:29:49,335 INFO L225 Difference]: With dead ends: 3214 [2020-10-15 03:29:49,335 INFO L226 Difference]: Without dead ends: 2230 [2020-10-15 03:29:49,336 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2020-10-15 03:29:49,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2230 states. [2020-10-15 03:29:49,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2230 to 1686. [2020-10-15 03:29:49,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1686 states. [2020-10-15 03:29:49,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1686 states to 1686 states and 2360 transitions. [2020-10-15 03:29:49,525 INFO L78 Accepts]: Start accepts. Automaton has 1686 states and 2360 transitions. Word has length 83 [2020-10-15 03:29:49,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:29:49,526 INFO L479 AbstractCegarLoop]: Abstraction has 1686 states and 2360 transitions. [2020-10-15 03:29:49,526 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 03:29:49,526 INFO L276 IsEmpty]: Start isEmpty. Operand 1686 states and 2360 transitions. [2020-10-15 03:29:49,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-15 03:29:49,527 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:29:49,527 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] [2020-10-15 03:29:49,527 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-15 03:29:49,528 INFO L427 AbstractCegarLoop]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:29:49,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:29:49,528 INFO L82 PathProgramCache]: Analyzing trace with hash -496662463, now seen corresponding path program 1 times [2020-10-15 03:29:49,528 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:29:49,528 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1159404353] [2020-10-15 03:29:49,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:29:49,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:29:49,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:49,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:49,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:50,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:54,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:29:54,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-15 03:29:54,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 03:29:54,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-15 03:29:54,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:29:54,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:29:54,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 03:29:54,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:29:54,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-15 03:29:54,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:29:55,134 WARN L193 SmtUtils]: Spent 461.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-15 03:29:55,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:29:55,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:29:55,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:55,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:29:55,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:29:55,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:29:55,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 03:29:55,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:29:55,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:29:55,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:29:55,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:29:55,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:29:55,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:29:55,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:29:55,209 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1159404353] [2020-10-15 03:29:55,209 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:29:55,209 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 03:29:55,209 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849299376] [2020-10-15 03:29:55,210 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 03:29:55,210 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:29:55,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 03:29:55,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-15 03:29:55,210 INFO L87 Difference]: Start difference. First operand 1686 states and 2360 transitions. Second operand 9 states. [2020-10-15 03:29:55,761 WARN L193 SmtUtils]: Spent 491.00 ms on a formula simplification that was a NOOP. DAG size: 308 [2020-10-15 03:29:57,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:29:57,493 INFO L93 Difference]: Finished difference Result 2198 states and 3123 transitions. [2020-10-15 03:29:57,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 03:29:57,493 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 83 [2020-10-15 03:29:57,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:29:57,496 INFO L225 Difference]: With dead ends: 2198 [2020-10-15 03:29:57,496 INFO L226 Difference]: Without dead ends: 2194 [2020-10-15 03:29:57,496 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2020-10-15 03:29:57,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2194 states. [2020-10-15 03:29:57,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2194 to 1682. [2020-10-15 03:29:57,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1682 states. [2020-10-15 03:29:57,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1682 states to 1682 states and 2356 transitions. [2020-10-15 03:29:57,702 INFO L78 Accepts]: Start accepts. Automaton has 1682 states and 2356 transitions. Word has length 83 [2020-10-15 03:29:57,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:29:57,702 INFO L479 AbstractCegarLoop]: Abstraction has 1682 states and 2356 transitions. [2020-10-15 03:29:57,702 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 03:29:57,702 INFO L276 IsEmpty]: Start isEmpty. Operand 1682 states and 2356 transitions. [2020-10-15 03:29:57,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-15 03:29:57,704 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:29:57,704 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] [2020-10-15 03:29:57,704 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-15 03:29:57,704 INFO L427 AbstractCegarLoop]: === Iteration 25 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 03:29:57,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:29:57,704 INFO L82 PathProgramCache]: Analyzing trace with hash -111614302, now seen corresponding path program 1 times [2020-10-15 03:29:57,705 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:29:57,705 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1890054577] [2020-10-15 03:29:57,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:29:57,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:29:57,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:57,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:57,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:58,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:58,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:29:58,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking...