/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 19:35:15,184 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 19:35:15,187 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 19:35:15,211 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 19:35:15,212 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 19:35:15,213 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 19:35:15,214 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 19:35:15,216 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 19:35:15,218 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 19:35:15,219 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 19:35:15,219 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 19:35:15,220 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 19:35:15,221 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 19:35:15,222 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 19:35:15,223 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 19:35:15,224 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 19:35:15,225 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 19:35:15,226 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 19:35:15,227 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 19:35:15,229 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 19:35:15,230 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 19:35:15,231 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 19:35:15,232 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 19:35:15,233 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 19:35:15,235 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 19:35:15,236 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 19:35:15,236 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 19:35:15,237 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 19:35:15,237 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 19:35:15,238 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 19:35:15,238 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 19:35:15,239 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 19:35:15,240 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 19:35:15,240 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 19:35:15,241 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 19:35:15,241 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 19:35:15,242 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 19:35:15,242 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 19:35:15,243 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 19:35:15,243 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 19:35:15,244 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 19:35:15,245 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-12 19:35:15,269 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 19:35:15,269 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 19:35:15,270 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 19:35:15,270 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 19:35:15,271 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 19:35:15,271 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 19:35:15,271 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 19:35:15,271 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 19:35:15,271 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 19:35:15,272 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 19:35:15,272 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 19:35:15,272 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 19:35:15,272 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 19:35:15,272 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 19:35:15,272 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 19:35:15,273 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 19:35:15,273 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 19:35:15,273 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 19:35:15,273 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 19:35:15,273 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 19:35:15,274 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 19:35:15,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 19:35:15,274 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 19:35:15,274 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 19:35:15,274 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 19:35:15,275 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 19:35:15,275 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 19:35:15,275 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 19:35:15,275 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 19:35:15,275 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 19:35:15,580 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 19:35:15,593 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 19:35:15,596 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 19:35:15,598 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 19:35:15,598 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 19:35:15,599 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2020-10-12 19:35:15,663 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bfdc70730/63d840929d494d6eb775f56bc0de53e1/FLAGf9e7f5c31 [2020-10-12 19:35:16,362 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 19:35:16,363 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2020-10-12 19:35:16,378 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bfdc70730/63d840929d494d6eb775f56bc0de53e1/FLAGf9e7f5c31 [2020-10-12 19:35:16,497 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bfdc70730/63d840929d494d6eb775f56bc0de53e1 [2020-10-12 19:35:16,509 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 19:35:16,512 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 19:35:16,517 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 19:35:16,517 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 19:35:16,520 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 19:35:16,522 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:35:16" (1/1) ... [2020-10-12 19:35:16,526 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b8831ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:35:16, skipping insertion in model container [2020-10-12 19:35:16,526 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:35:16" (1/1) ... [2020-10-12 19:35:16,535 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 19:35:16,642 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 19:35:17,302 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 19:35:17,315 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 19:35:17,832 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 19:35:17,861 INFO L208 MainTranslator]: Completed translation [2020-10-12 19:35:17,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:35:17 WrapperNode [2020-10-12 19:35:17,863 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 19:35:17,863 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 19:35:17,864 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 19:35:17,864 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 19:35:17,879 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:35:17" (1/1) ... [2020-10-12 19:35:17,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:35:17" (1/1) ... [2020-10-12 19:35:17,932 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:35:17" (1/1) ... [2020-10-12 19:35:17,932 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:35:17" (1/1) ... [2020-10-12 19:35:18,023 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:35:17" (1/1) ... [2020-10-12 19:35:18,055 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:35:17" (1/1) ... [2020-10-12 19:35:18,062 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:35:17" (1/1) ... [2020-10-12 19:35:18,076 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 19:35:18,077 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 19:35:18,077 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 19:35:18,077 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 19:35:18,078 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:35:17" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 19:35:18,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 19:35:18,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 19:35:18,171 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-12 19:35:18,171 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 19:35:18,172 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 19:35:18,172 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-12 19:35:18,172 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-12 19:35:18,174 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-12 19:35:18,174 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-12 19:35:18,174 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 19:35:18,175 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-12 19:35:18,175 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-12 19:35:18,175 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-12 19:35:18,175 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-12 19:35:18,176 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-12 19:35:18,177 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-12 19:35:18,177 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-12 19:35:18,177 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-12 19:35:18,177 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-12 19:35:18,178 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 19:35:18,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 19:35:18,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 19:35:20,266 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 19:35:20,267 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-12 19:35:20,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:35:20 BoogieIcfgContainer [2020-10-12 19:35:20,275 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 19:35:20,277 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 19:35:20,277 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 19:35:20,280 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 19:35:20,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 07:35:16" (1/3) ... [2020-10-12 19:35:20,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@295afedc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:35:20, skipping insertion in model container [2020-10-12 19:35:20,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:35:17" (2/3) ... [2020-10-12 19:35:20,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@295afedc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:35:20, skipping insertion in model container [2020-10-12 19:35:20,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:35:20" (3/3) ... [2020-10-12 19:35:20,285 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2020-10-12 19:35:20,297 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 19:35:20,305 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2020-10-12 19:35:20,321 INFO L251 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2020-10-12 19:35:20,349 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 19:35:20,350 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 19:35:20,350 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 19:35:20,350 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 19:35:20,350 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 19:35:20,350 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 19:35:20,351 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 19:35:20,351 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 19:35:20,381 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states. [2020-10-12 19:35:20,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-12 19:35:20,399 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:35:20,400 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] [2020-10-12 19:35:20,401 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:35:20,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:35:20,408 INFO L82 PathProgramCache]: Analyzing trace with hash 1666706590, now seen corresponding path program 1 times [2020-10-12 19:35:20,418 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:35:20,418 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1298331018] [2020-10-12 19:35:20,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:35:20,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:35:20,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:35:21,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:35:21,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:35:21,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:35:22,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:35:22,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:35:22,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:35:23,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:35:24,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:35:25,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:35:25,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-12 19:35:25,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-12 19:35:25,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-12 19:35:25,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:35:25,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 19:35:25,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:35:25,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-12 19:35:25,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 19:35:26,970 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-12 19:35:26,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:35:26,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:35:26,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:35:26,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:35:26,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:35:26,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:35:26,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 19:35:26,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:35:26,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:35:26,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:35:26,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:35:26,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:35:27,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:35:27,056 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1298331018] [2020-10-12 19:35:27,058 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:35:27,058 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 19:35:27,059 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361355874] [2020-10-12 19:35:27,064 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 19:35:27,065 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:35:27,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 19:35:27,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-10-12 19:35:27,083 INFO L87 Difference]: Start difference. First operand 542 states. Second operand 12 states. [2020-10-12 19:35:27,483 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-10-12 19:35:35,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:35:35,012 INFO L93 Difference]: Finished difference Result 2006 states and 3274 transitions. [2020-10-12 19:35:35,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-12 19:35:35,014 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 63 [2020-10-12 19:35:35,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:35:35,058 INFO L225 Difference]: With dead ends: 2006 [2020-10-12 19:35:35,058 INFO L226 Difference]: Without dead ends: 1829 [2020-10-12 19:35:35,067 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2020-10-12 19:35:35,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1829 states. [2020-10-12 19:35:35,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1829 to 1045. [2020-10-12 19:35:35,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1045 states. [2020-10-12 19:35:35,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 1415 transitions. [2020-10-12 19:35:35,249 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 1415 transitions. Word has length 63 [2020-10-12 19:35:35,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:35:35,251 INFO L479 AbstractCegarLoop]: Abstraction has 1045 states and 1415 transitions. [2020-10-12 19:35:35,251 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 19:35:35,251 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 1415 transitions. [2020-10-12 19:35:35,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-12 19:35:35,266 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:35:35,266 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] [2020-10-12 19:35:35,267 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 19:35:35,267 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:35:35,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:35:35,268 INFO L82 PathProgramCache]: Analyzing trace with hash 377744219, now seen corresponding path program 1 times [2020-10-12 19:35:35,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:35:35,269 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [174565162] [2020-10-12 19:35:35,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:35:35,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:35:35,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:35:35,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:35:35,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:35:35,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:35:35,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:35:35,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:35:36,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:35:36,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:35:36,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:35:37,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:35:37,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:35:38,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:35:39,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:35:40,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:35:40,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-12 19:35:40,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-12 19:35:40,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-12 19:35:40,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:35:40,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 19:35:40,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:35:40,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-12 19:35:40,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 19:35:41,076 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-12 19:35:41,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:35:41,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:35:41,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:35:41,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:35:41,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:35:41,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:35:41,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 19:35:41,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:35:41,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:35:41,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:35:41,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:35:41,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:35:41,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:35:41,153 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [174565162] [2020-10-12 19:35:41,153 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:35:41,154 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 19:35:41,154 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165034660] [2020-10-12 19:35:41,156 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 19:35:41,156 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:35:41,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 19:35:41,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-10-12 19:35:41,157 INFO L87 Difference]: Start difference. First operand 1045 states and 1415 transitions. Second operand 12 states. [2020-10-12 19:35:41,463 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-12 19:35:47,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:35:47,632 INFO L93 Difference]: Finished difference Result 3932 states and 5666 transitions. [2020-10-12 19:35:47,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-12 19:35:47,633 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 63 [2020-10-12 19:35:47,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:35:47,654 INFO L225 Difference]: With dead ends: 3932 [2020-10-12 19:35:47,655 INFO L226 Difference]: Without dead ends: 3607 [2020-10-12 19:35:47,662 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=220, Invalid=710, Unknown=0, NotChecked=0, Total=930 [2020-10-12 19:35:47,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3607 states. [2020-10-12 19:35:47,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3607 to 1695. [2020-10-12 19:35:47,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1695 states. [2020-10-12 19:35:47,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1695 states to 1695 states and 2399 transitions. [2020-10-12 19:35:47,819 INFO L78 Accepts]: Start accepts. Automaton has 1695 states and 2399 transitions. Word has length 63 [2020-10-12 19:35:47,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:35:47,820 INFO L479 AbstractCegarLoop]: Abstraction has 1695 states and 2399 transitions. [2020-10-12 19:35:47,820 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 19:35:47,820 INFO L276 IsEmpty]: Start isEmpty. Operand 1695 states and 2399 transitions. [2020-10-12 19:35:47,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-12 19:35:47,823 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:35:47,824 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] [2020-10-12 19:35:47,824 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 19:35:47,824 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:35:47,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:35:47,825 INFO L82 PathProgramCache]: Analyzing trace with hash 478280318, now seen corresponding path program 1 times [2020-10-12 19:35:47,825 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:35:47,825 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1966838370] [2020-10-12 19:35:47,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:35:47,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:35:47,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:35:47,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:35:48,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:35:48,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:35:50,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:35:50,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:35:51,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:35:51,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:35:52,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:35:52,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:35:52,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:35:52,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-12 19:35:52,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-12 19:35:52,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-12 19:35:52,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:35:52,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-12 19:35:52,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 19:35:52,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-12 19:35:52,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:35:53,429 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-12 19:35:53,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:35:53,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:35:53,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:35:53,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:35:53,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:35:53,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:35:53,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 19:35:53,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:35:53,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:35:53,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:35:53,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 19:35:53,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:35:53,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:35:53,515 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1966838370] [2020-10-12 19:35:53,515 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:35:53,515 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 19:35:53,515 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931436864] [2020-10-12 19:35:53,516 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-12 19:35:53,516 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:35:53,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-12 19:35:53,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-12 19:35:53,517 INFO L87 Difference]: Start difference. First operand 1695 states and 2399 transitions. Second operand 15 states. [2020-10-12 19:35:54,262 WARN L193 SmtUtils]: Spent 611.00 ms on a formula simplification. DAG size of input: 232 DAG size of output: 229 [2020-10-12 19:35:58,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:35:58,191 INFO L93 Difference]: Finished difference Result 2975 states and 4229 transitions. [2020-10-12 19:35:58,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-12 19:35:58,192 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 63 [2020-10-12 19:35:58,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:35:58,202 INFO L225 Difference]: With dead ends: 2975 [2020-10-12 19:35:58,202 INFO L226 Difference]: Without dead ends: 1807 [2020-10-12 19:35:58,206 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=198, Invalid=672, Unknown=0, NotChecked=0, Total=870 [2020-10-12 19:35:58,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1807 states. [2020-10-12 19:35:58,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1807 to 1503. [2020-10-12 19:35:58,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1503 states. [2020-10-12 19:35:58,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1503 states to 1503 states and 2159 transitions. [2020-10-12 19:35:58,337 INFO L78 Accepts]: Start accepts. Automaton has 1503 states and 2159 transitions. Word has length 63 [2020-10-12 19:35:58,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:35:58,337 INFO L479 AbstractCegarLoop]: Abstraction has 1503 states and 2159 transitions. [2020-10-12 19:35:58,338 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-12 19:35:58,338 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states and 2159 transitions. [2020-10-12 19:35:58,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-12 19:35:58,340 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:35:58,340 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] [2020-10-12 19:35:58,341 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 19:35:58,341 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:35:58,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:35:58,341 INFO L82 PathProgramCache]: Analyzing trace with hash 940154528, now seen corresponding path program 1 times [2020-10-12 19:35:58,342 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:35:58,342 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1990599506] [2020-10-12 19:35:58,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:35:58,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:35:58,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:35:58,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:35:58,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:35:59,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:35:59,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:35:59,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:35:59,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:00,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:00,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:00,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:00,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:01,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:01,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:01,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:03,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:36:03,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-12 19:36:03,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-12 19:36:03,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-12 19:36:03,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:36:03,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 19:36:03,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 19:36:03,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-12 19:36:03,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:36:03,856 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-12 19:36:03,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:36:03,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:36:03,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:03,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:36:03,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:36:03,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:36:03,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 19:36:03,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:36:03,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:36:03,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:36:03,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 19:36:03,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:36:03,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:36:03,934 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1990599506] [2020-10-12 19:36:03,935 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:36:03,935 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 19:36:03,935 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138672171] [2020-10-12 19:36:03,936 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 19:36:03,936 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:36:03,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 19:36:03,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-10-12 19:36:03,937 INFO L87 Difference]: Start difference. First operand 1503 states and 2159 transitions. Second operand 12 states. [2020-10-12 19:36:04,664 WARN L193 SmtUtils]: Spent 611.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 216 [2020-10-12 19:36:07,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:36:07,881 INFO L93 Difference]: Finished difference Result 2841 states and 4188 transitions. [2020-10-12 19:36:07,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-12 19:36:07,882 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 63 [2020-10-12 19:36:07,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:36:07,893 INFO L225 Difference]: With dead ends: 2841 [2020-10-12 19:36:07,893 INFO L226 Difference]: Without dead ends: 2033 [2020-10-12 19:36:07,895 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=130, Invalid=376, Unknown=0, NotChecked=0, Total=506 [2020-10-12 19:36:07,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2033 states. [2020-10-12 19:36:08,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2033 to 1482. [2020-10-12 19:36:08,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1482 states. [2020-10-12 19:36:08,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1482 states to 1482 states and 2129 transitions. [2020-10-12 19:36:08,037 INFO L78 Accepts]: Start accepts. Automaton has 1482 states and 2129 transitions. Word has length 63 [2020-10-12 19:36:08,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:36:08,039 INFO L479 AbstractCegarLoop]: Abstraction has 1482 states and 2129 transitions. [2020-10-12 19:36:08,039 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 19:36:08,039 INFO L276 IsEmpty]: Start isEmpty. Operand 1482 states and 2129 transitions. [2020-10-12 19:36:08,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-12 19:36:08,042 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:36:08,043 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] [2020-10-12 19:36:08,043 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 19:36:08,043 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:36:08,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:36:08,044 INFO L82 PathProgramCache]: Analyzing trace with hash 1556222906, now seen corresponding path program 1 times [2020-10-12 19:36:08,044 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:36:08,044 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [357009967] [2020-10-12 19:36:08,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:36:08,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:36:08,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:08,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:08,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:08,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:08,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:09,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:09,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:09,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:09,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:10,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:10,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:10,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:10,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:10,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:11,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:11,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:13,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:36:13,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-12 19:36:13,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-12 19:36:13,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-12 19:36:13,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:36:13,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 19:36:13,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-12 19:36:13,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-12 19:36:13,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:36:13,573 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-12 19:36:13,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:36:13,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:36:13,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:13,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:36:13,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:36:13,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:36:13,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 19:36:13,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:36:13,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:36:13,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:36:13,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:36:13,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:36:13,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:36:13,626 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [357009967] [2020-10-12 19:36:13,626 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:36:13,626 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 19:36:13,627 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744613779] [2020-10-12 19:36:13,627 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 19:36:13,628 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:36:13,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 19:36:13,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2020-10-12 19:36:13,628 INFO L87 Difference]: Start difference. First operand 1482 states and 2129 transitions. Second operand 14 states. [2020-10-12 19:36:14,021 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-12 19:36:18,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:36:18,190 INFO L93 Difference]: Finished difference Result 2469 states and 3488 transitions. [2020-10-12 19:36:18,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-12 19:36:18,192 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 63 [2020-10-12 19:36:18,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:36:18,203 INFO L225 Difference]: With dead ends: 2469 [2020-10-12 19:36:18,203 INFO L226 Difference]: Without dead ends: 2462 [2020-10-12 19:36:18,205 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=223, Invalid=833, Unknown=0, NotChecked=0, Total=1056 [2020-10-12 19:36:18,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2462 states. [2020-10-12 19:36:18,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2462 to 1491. [2020-10-12 19:36:18,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1491 states. [2020-10-12 19:36:18,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1491 states to 1491 states and 2143 transitions. [2020-10-12 19:36:18,376 INFO L78 Accepts]: Start accepts. Automaton has 1491 states and 2143 transitions. Word has length 63 [2020-10-12 19:36:18,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:36:18,377 INFO L479 AbstractCegarLoop]: Abstraction has 1491 states and 2143 transitions. [2020-10-12 19:36:18,377 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 19:36:18,377 INFO L276 IsEmpty]: Start isEmpty. Operand 1491 states and 2143 transitions. [2020-10-12 19:36:18,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-12 19:36:18,379 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:36:18,379 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] [2020-10-12 19:36:18,380 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 19:36:18,380 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:36:18,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:36:18,380 INFO L82 PathProgramCache]: Analyzing trace with hash -68600080, now seen corresponding path program 1 times [2020-10-12 19:36:18,381 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:36:18,381 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2111535878] [2020-10-12 19:36:18,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:36:18,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:36:18,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:18,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:18,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:18,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:18,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:18,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:19,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:22,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:22,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:22,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:22,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:22,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:23,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:23,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:36:23,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 19:36:23,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-12 19:36:23,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-12 19:36:23,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:36:23,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 19:36:23,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:36:23,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-12 19:36:23,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:36:24,137 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-12 19:36:24,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:36:24,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:36:24,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:24,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:36:24,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:36:24,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:36:24,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 19:36:24,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:36:24,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:36:24,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:36:24,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:36:24,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:36:24,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:36:24,194 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2111535878] [2020-10-12 19:36:24,195 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:36:24,195 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 19:36:24,196 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20962500] [2020-10-12 19:36:24,196 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 19:36:24,196 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:36:24,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 19:36:24,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-10-12 19:36:24,197 INFO L87 Difference]: Start difference. First operand 1491 states and 2143 transitions. Second operand 14 states. [2020-10-12 19:36:24,591 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-10-12 19:36:28,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:36:28,417 INFO L93 Difference]: Finished difference Result 2737 states and 3941 transitions. [2020-10-12 19:36:28,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 19:36:28,418 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 64 [2020-10-12 19:36:28,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:36:28,430 INFO L225 Difference]: With dead ends: 2737 [2020-10-12 19:36:28,430 INFO L226 Difference]: Without dead ends: 2731 [2020-10-12 19:36:28,432 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=170, Invalid=700, Unknown=0, NotChecked=0, Total=870 [2020-10-12 19:36:28,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2731 states. [2020-10-12 19:36:28,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2731 to 1506. [2020-10-12 19:36:28,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1506 states. [2020-10-12 19:36:28,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 2164 transitions. [2020-10-12 19:36:28,590 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 2164 transitions. Word has length 64 [2020-10-12 19:36:28,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:36:28,590 INFO L479 AbstractCegarLoop]: Abstraction has 1506 states and 2164 transitions. [2020-10-12 19:36:28,590 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 19:36:28,590 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 2164 transitions. [2020-10-12 19:36:28,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-12 19:36:28,593 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:36:28,593 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] [2020-10-12 19:36:28,593 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 19:36:28,593 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:36:28,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:36:28,594 INFO L82 PathProgramCache]: Analyzing trace with hash 53953382, now seen corresponding path program 1 times [2020-10-12 19:36:28,594 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:36:28,594 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1287117981] [2020-10-12 19:36:28,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:36:28,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:36:28,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:28,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:28,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:29,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:29,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:29,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:30,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:30,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:30,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:30,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:31,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:31,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:32,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:33,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:33,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:36:33,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 19:36:33,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-12 19:36:33,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-12 19:36:33,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:36:33,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 19:36:33,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:36:33,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-12 19:36:33,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:36:34,199 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-12 19:36:34,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:36:34,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:36:34,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:34,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:36:34,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:36:34,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:36:34,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 19:36:34,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:36:34,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:36:34,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:36:34,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:36:34,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:36:34,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:36:34,258 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1287117981] [2020-10-12 19:36:34,258 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:36:34,258 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 19:36:34,258 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800691570] [2020-10-12 19:36:34,259 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 19:36:34,259 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:36:34,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 19:36:34,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-10-12 19:36:34,260 INFO L87 Difference]: Start difference. First operand 1506 states and 2164 transitions. Second operand 14 states. [2020-10-12 19:36:35,110 WARN L193 SmtUtils]: Spent 674.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 236 [2020-10-12 19:36:35,732 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 47 [2020-10-12 19:36:40,621 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2020-10-12 19:36:40,976 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2020-10-12 19:36:41,275 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 54 [2020-10-12 19:36:41,519 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 50 [2020-10-12 19:36:42,025 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2020-10-12 19:36:42,283 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 50 [2020-10-12 19:36:43,755 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 57 [2020-10-12 19:36:43,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:36:43,851 INFO L93 Difference]: Finished difference Result 4088 states and 5979 transitions. [2020-10-12 19:36:43,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-10-12 19:36:43,852 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 64 [2020-10-12 19:36:43,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:36:43,864 INFO L225 Difference]: With dead ends: 4088 [2020-10-12 19:36:43,865 INFO L226 Difference]: Without dead ends: 3462 [2020-10-12 19:36:43,867 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 672 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=457, Invalid=1993, Unknown=0, NotChecked=0, Total=2450 [2020-10-12 19:36:43,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3462 states. [2020-10-12 19:36:44,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3462 to 1506. [2020-10-12 19:36:44,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1506 states. [2020-10-12 19:36:44,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 2163 transitions. [2020-10-12 19:36:44,046 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 2163 transitions. Word has length 64 [2020-10-12 19:36:44,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:36:44,046 INFO L479 AbstractCegarLoop]: Abstraction has 1506 states and 2163 transitions. [2020-10-12 19:36:44,047 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 19:36:44,047 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 2163 transitions. [2020-10-12 19:36:44,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-12 19:36:44,049 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:36:44,049 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] [2020-10-12 19:36:44,049 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 19:36:44,049 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:36:44,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:36:44,050 INFO L82 PathProgramCache]: Analyzing trace with hash -344861698, now seen corresponding path program 1 times [2020-10-12 19:36:44,050 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:36:44,050 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1153458925] [2020-10-12 19:36:44,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:36:44,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:36:44,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:44,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:44,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:44,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:44,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:44,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:44,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:44,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:46,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:47,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:49,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:36:49,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 19:36:49,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-12 19:36:49,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-12 19:36:49,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:36:49,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 19:36:49,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:36:49,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-12 19:36:49,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:36:49,978 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-12 19:36:49,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:36:49,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:36:49,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:49,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:36:49,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:36:49,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:36:49,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 19:36:49,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:36:49,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:36:49,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:36:49,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:36:49,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:36:50,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:36:50,026 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1153458925] [2020-10-12 19:36:50,026 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:36:50,027 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 19:36:50,027 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127257092] [2020-10-12 19:36:50,027 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 19:36:50,028 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:36:50,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 19:36:50,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-10-12 19:36:50,028 INFO L87 Difference]: Start difference. First operand 1506 states and 2163 transitions. Second operand 14 states. [2020-10-12 19:36:50,866 WARN L193 SmtUtils]: Spent 682.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 225 [2020-10-12 19:36:51,280 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 39 [2020-10-12 19:36:51,618 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2020-10-12 19:36:56,503 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2020-10-12 19:36:56,981 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2020-10-12 19:36:57,649 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 44 [2020-10-12 19:36:59,142 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2020-10-12 19:36:59,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:36:59,271 INFO L93 Difference]: Finished difference Result 4151 states and 6039 transitions. [2020-10-12 19:36:59,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-10-12 19:36:59,272 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 64 [2020-10-12 19:36:59,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:36:59,284 INFO L225 Difference]: With dead ends: 4151 [2020-10-12 19:36:59,285 INFO L226 Difference]: Without dead ends: 3513 [2020-10-12 19:36:59,288 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 706 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=484, Invalid=2066, Unknown=0, NotChecked=0, Total=2550 [2020-10-12 19:36:59,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3513 states. [2020-10-12 19:36:59,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3513 to 1506. [2020-10-12 19:36:59,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1506 states. [2020-10-12 19:36:59,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 2162 transitions. [2020-10-12 19:36:59,490 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 2162 transitions. Word has length 64 [2020-10-12 19:36:59,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:36:59,490 INFO L479 AbstractCegarLoop]: Abstraction has 1506 states and 2162 transitions. [2020-10-12 19:36:59,490 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 19:36:59,490 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 2162 transitions. [2020-10-12 19:36:59,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-12 19:36:59,492 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:36:59,492 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] [2020-10-12 19:36:59,493 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 19:36:59,493 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:36:59,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:36:59,493 INFO L82 PathProgramCache]: Analyzing trace with hash -1824256589, now seen corresponding path program 1 times [2020-10-12 19:36:59,494 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:36:59,494 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [512428935] [2020-10-12 19:36:59,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:36:59,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:36:59,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:59,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:59,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:36:59,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:00,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:01,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:01,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:02,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:02,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:02,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:04,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:37:04,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 19:37:04,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-12 19:37:04,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-12 19:37:04,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:37:04,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 19:37:04,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:37:04,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-12 19:37:04,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:37:05,280 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-12 19:37:05,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:37:05,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:37:05,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:05,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:37:05,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:37:05,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:37:05,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 19:37:05,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:37:05,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:37:05,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:37:05,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:37:05,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:37:05,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:37:05,326 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [512428935] [2020-10-12 19:37:05,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:37:05,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-12 19:37:05,326 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863092792] [2020-10-12 19:37:05,327 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 19:37:05,327 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:37:05,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 19:37:05,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-10-12 19:37:05,328 INFO L87 Difference]: Start difference. First operand 1506 states and 2162 transitions. Second operand 13 states. [2020-10-12 19:37:05,694 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2020-10-12 19:37:06,146 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 38 [2020-10-12 19:37:06,395 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 42 [2020-10-12 19:37:09,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:37:09,323 INFO L93 Difference]: Finished difference Result 2461 states and 3580 transitions. [2020-10-12 19:37:09,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-12 19:37:09,324 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 64 [2020-10-12 19:37:09,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:37:09,329 INFO L225 Difference]: With dead ends: 2461 [2020-10-12 19:37:09,329 INFO L226 Difference]: Without dead ends: 1670 [2020-10-12 19:37:09,331 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=102, Invalid=360, Unknown=0, NotChecked=0, Total=462 [2020-10-12 19:37:09,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1670 states. [2020-10-12 19:37:09,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1670 to 1472. [2020-10-12 19:37:09,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1472 states. [2020-10-12 19:37:09,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 2107 transitions. [2020-10-12 19:37:09,541 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 2107 transitions. Word has length 64 [2020-10-12 19:37:09,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:37:09,541 INFO L479 AbstractCegarLoop]: Abstraction has 1472 states and 2107 transitions. [2020-10-12 19:37:09,541 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 19:37:09,541 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 2107 transitions. [2020-10-12 19:37:09,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-12 19:37:09,543 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:37:09,543 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] [2020-10-12 19:37:09,543 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 19:37:09,543 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:37:09,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:37:09,544 INFO L82 PathProgramCache]: Analyzing trace with hash 1653511604, now seen corresponding path program 1 times [2020-10-12 19:37:09,544 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:37:09,544 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1990826735] [2020-10-12 19:37:09,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:37:09,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:37:09,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:09,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:09,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:09,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:10,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:10,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:10,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:10,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:10,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:10,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:11,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:11,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:11,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:11,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:14,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:37:14,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 19:37:14,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-12 19:37:14,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 19:37:14,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:37:14,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 19:37:14,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:37:14,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-12 19:37:14,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:37:15,353 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-12 19:37:15,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:37:15,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:37:15,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:15,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:37:15,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:37:15,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:37:15,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 19:37:15,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:37:15,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:37:15,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:37:15,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:37:15,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:37:15,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:37:15,428 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1990826735] [2020-10-12 19:37:15,429 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:37:15,429 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 19:37:15,429 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117734682] [2020-10-12 19:37:15,431 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 19:37:15,431 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:37:15,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 19:37:15,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-10-12 19:37:15,432 INFO L87 Difference]: Start difference. First operand 1472 states and 2107 transitions. Second operand 14 states. [2020-10-12 19:37:16,286 WARN L193 SmtUtils]: Spent 686.00 ms on a formula simplification. DAG size of input: 232 DAG size of output: 230 [2020-10-12 19:37:21,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:37:21,415 INFO L93 Difference]: Finished difference Result 2200 states and 3053 transitions. [2020-10-12 19:37:21,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-10-12 19:37:21,416 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 64 [2020-10-12 19:37:21,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:37:21,424 INFO L225 Difference]: With dead ends: 2200 [2020-10-12 19:37:21,424 INFO L226 Difference]: Without dead ends: 2190 [2020-10-12 19:37:21,426 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 315 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=291, Invalid=1115, Unknown=0, NotChecked=0, Total=1406 [2020-10-12 19:37:21,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2190 states. [2020-10-12 19:37:21,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2190 to 1475. [2020-10-12 19:37:21,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1475 states. [2020-10-12 19:37:21,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1475 states to 1475 states and 2110 transitions. [2020-10-12 19:37:21,610 INFO L78 Accepts]: Start accepts. Automaton has 1475 states and 2110 transitions. Word has length 64 [2020-10-12 19:37:21,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:37:21,610 INFO L479 AbstractCegarLoop]: Abstraction has 1475 states and 2110 transitions. [2020-10-12 19:37:21,610 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 19:37:21,611 INFO L276 IsEmpty]: Start isEmpty. Operand 1475 states and 2110 transitions. [2020-10-12 19:37:21,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-12 19:37:21,612 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:37:21,613 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] [2020-10-12 19:37:21,613 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 19:37:21,613 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:37:21,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:37:21,614 INFO L82 PathProgramCache]: Analyzing trace with hash -512211443, now seen corresponding path program 1 times [2020-10-12 19:37:21,614 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:37:21,614 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [828449035] [2020-10-12 19:37:21,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:37:21,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:37:21,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:21,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:21,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:21,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:21,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:22,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:22,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:22,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:22,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:23,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:23,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:23,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:24,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:25,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:26,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:37:26,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 19:37:26,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-12 19:37:26,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-12 19:37:26,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:37:26,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 19:37:26,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:37:26,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-12 19:37:26,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:37:27,000 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 22 [2020-10-12 19:37:27,590 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-12 19:37:27,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:37:27,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:37:27,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:27,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:37:27,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:37:27,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:37:27,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 19:37:27,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:37:27,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:37:27,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:37:27,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:37:27,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:37:27,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:37:27,673 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [828449035] [2020-10-12 19:37:27,673 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:37:27,673 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 19:37:27,674 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816580381] [2020-10-12 19:37:27,674 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 19:37:27,674 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:37:27,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 19:37:27,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-10-12 19:37:27,675 INFO L87 Difference]: Start difference. First operand 1475 states and 2110 transitions. Second operand 14 states. [2020-10-12 19:37:28,042 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2020-10-12 19:37:32,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:37:32,401 INFO L93 Difference]: Finished difference Result 2973 states and 4290 transitions. [2020-10-12 19:37:32,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-12 19:37:32,401 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 64 [2020-10-12 19:37:32,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:37:32,409 INFO L225 Difference]: With dead ends: 2973 [2020-10-12 19:37:32,409 INFO L226 Difference]: Without dead ends: 2964 [2020-10-12 19:37:32,411 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=137, Invalid=513, Unknown=0, NotChecked=0, Total=650 [2020-10-12 19:37:32,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2964 states. [2020-10-12 19:37:32,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2964 to 1495. [2020-10-12 19:37:32,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1495 states. [2020-10-12 19:37:32,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 2136 transitions. [2020-10-12 19:37:32,607 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 2136 transitions. Word has length 64 [2020-10-12 19:37:32,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:37:32,607 INFO L479 AbstractCegarLoop]: Abstraction has 1495 states and 2136 transitions. [2020-10-12 19:37:32,607 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 19:37:32,607 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 2136 transitions. [2020-10-12 19:37:32,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-12 19:37:32,609 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:37:32,609 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] [2020-10-12 19:37:32,609 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 19:37:32,609 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:37:32,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:37:32,610 INFO L82 PathProgramCache]: Analyzing trace with hash 1112689074, now seen corresponding path program 1 times [2020-10-12 19:37:32,610 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:37:32,610 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [583809819] [2020-10-12 19:37:32,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:37:32,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:37:32,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:32,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:32,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:32,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:32,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:33,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:33,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:33,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:33,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:33,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:33,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:34,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:34,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:34,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:34,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:36,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:36,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:37,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:37:37,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 19:37:37,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-12 19:37:37,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-12 19:37:37,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:37:37,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 19:37:37,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 19:37:37,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-12 19:37:37,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:37:38,190 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-12 19:37:38,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:37:38,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:37:38,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:38,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:37:38,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:37:38,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:37:38,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 19:37:38,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:37:38,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:37:38,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:37:38,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 19:37:38,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:37:38,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:37:38,241 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [583809819] [2020-10-12 19:37:38,241 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:37:38,241 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-12 19:37:38,241 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266800412] [2020-10-12 19:37:38,242 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 19:37:38,242 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:37:38,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 19:37:38,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2020-10-12 19:37:38,243 INFO L87 Difference]: Start difference. First operand 1495 states and 2136 transitions. Second operand 14 states. [2020-10-12 19:37:39,077 WARN L193 SmtUtils]: Spent 698.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 230 [2020-10-12 19:37:43,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:37:43,792 INFO L93 Difference]: Finished difference Result 2002 states and 2821 transitions. [2020-10-12 19:37:43,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 19:37:43,793 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 64 [2020-10-12 19:37:43,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:37:43,798 INFO L225 Difference]: With dead ends: 2002 [2020-10-12 19:37:43,798 INFO L226 Difference]: Without dead ends: 1992 [2020-10-12 19:37:43,799 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=234, Invalid=758, Unknown=0, NotChecked=0, Total=992 [2020-10-12 19:37:43,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1992 states. [2020-10-12 19:37:43,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1992 to 1495. [2020-10-12 19:37:43,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1495 states. [2020-10-12 19:37:43,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 2134 transitions. [2020-10-12 19:37:43,991 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 2134 transitions. Word has length 64 [2020-10-12 19:37:43,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:37:43,991 INFO L479 AbstractCegarLoop]: Abstraction has 1495 states and 2134 transitions. [2020-10-12 19:37:43,991 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 19:37:43,991 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 2134 transitions. [2020-10-12 19:37:43,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-12 19:37:43,992 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:37:43,992 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] [2020-10-12 19:37:43,993 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 19:37:43,993 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:37:43,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:37:43,993 INFO L82 PathProgramCache]: Analyzing trace with hash 1937354705, now seen corresponding path program 1 times [2020-10-12 19:37:43,993 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:37:43,994 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [448306450] [2020-10-12 19:37:43,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:37:44,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:37:44,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:44,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:44,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:44,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:44,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:44,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:45,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:45,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:45,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:49,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:37:49,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 19:37:49,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-12 19:37:49,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 19:37:49,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:37:49,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 19:37:49,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 19:37:49,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-12 19:37:49,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:37:49,648 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-12 19:37:49,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:37:49,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:37:49,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:49,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:37:49,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:37:49,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:37:49,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 19:37:49,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:37:49,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:37:49,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:37:49,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 19:37:49,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:37:49,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:37:49,717 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [448306450] [2020-10-12 19:37:49,717 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:37:49,717 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-12 19:37:49,718 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049269185] [2020-10-12 19:37:49,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 19:37:49,718 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:37:49,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 19:37:49,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2020-10-12 19:37:49,719 INFO L87 Difference]: Start difference. First operand 1495 states and 2134 transitions. Second operand 16 states. [2020-10-12 19:37:50,618 WARN L193 SmtUtils]: Spent 723.00 ms on a formula simplification. DAG size of input: 236 DAG size of output: 232 [2020-10-12 19:37:54,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:37:54,498 INFO L93 Difference]: Finished difference Result 2182 states and 3075 transitions. [2020-10-12 19:37:54,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-12 19:37:54,499 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 64 [2020-10-12 19:37:54,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:37:54,502 INFO L225 Difference]: With dead ends: 2182 [2020-10-12 19:37:54,502 INFO L226 Difference]: Without dead ends: 1276 [2020-10-12 19:37:54,504 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=200, Invalid=730, Unknown=0, NotChecked=0, Total=930 [2020-10-12 19:37:54,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1276 states. [2020-10-12 19:37:54,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1276 to 965. [2020-10-12 19:37:54,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2020-10-12 19:37:54,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1374 transitions. [2020-10-12 19:37:54,651 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1374 transitions. Word has length 64 [2020-10-12 19:37:54,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:37:54,651 INFO L479 AbstractCegarLoop]: Abstraction has 965 states and 1374 transitions. [2020-10-12 19:37:54,651 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 19:37:54,651 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1374 transitions. [2020-10-12 19:37:54,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-12 19:37:54,653 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:37:54,653 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] [2020-10-12 19:37:54,653 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 19:37:54,653 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:37:54,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:37:54,654 INFO L82 PathProgramCache]: Analyzing trace with hash 1263831154, now seen corresponding path program 1 times [2020-10-12 19:37:54,654 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:37:54,654 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2035737449] [2020-10-12 19:37:54,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:37:54,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:37:54,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:54,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:54,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:54,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:55,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:55,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:55,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:55,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:55,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:55,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:56,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:56,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:57,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:57,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:57,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:58,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:58,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:58,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:58,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:37:59,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:37:59,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 19:37:59,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 19 [2020-10-12 19:37:59,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-12 19:37:59,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:37:59,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 19:37:59,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 19:37:59,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-12 19:37:59,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:38:00,352 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-12 19:38:00,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:38:00,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:38:00,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:00,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:38:00,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:38:00,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:38:00,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 19:38:00,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:38:00,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:38:00,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:38:00,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:38:00,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:38:00,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:38:00,395 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2035737449] [2020-10-12 19:38:00,395 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:38:00,395 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 19:38:00,395 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858201770] [2020-10-12 19:38:00,395 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 19:38:00,398 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:38:00,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 19:38:00,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2020-10-12 19:38:00,398 INFO L87 Difference]: Start difference. First operand 965 states and 1374 transitions. Second operand 16 states. [2020-10-12 19:38:00,536 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2020-10-12 19:38:01,391 WARN L193 SmtUtils]: Spent 700.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 230 [2020-10-12 19:38:01,984 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 51 [2020-10-12 19:38:02,182 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2020-10-12 19:38:06,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:38:06,166 INFO L93 Difference]: Finished difference Result 2043 states and 2942 transitions. [2020-10-12 19:38:06,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-12 19:38:06,167 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 64 [2020-10-12 19:38:06,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:38:06,170 INFO L225 Difference]: With dead ends: 2043 [2020-10-12 19:38:06,171 INFO L226 Difference]: Without dead ends: 2035 [2020-10-12 19:38:06,172 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=221, Invalid=969, Unknown=0, NotChecked=0, Total=1190 [2020-10-12 19:38:06,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2035 states. [2020-10-12 19:38:06,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2035 to 965. [2020-10-12 19:38:06,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2020-10-12 19:38:06,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1373 transitions. [2020-10-12 19:38:06,394 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1373 transitions. Word has length 64 [2020-10-12 19:38:06,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:38:06,395 INFO L479 AbstractCegarLoop]: Abstraction has 965 states and 1373 transitions. [2020-10-12 19:38:06,395 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 19:38:06,395 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1373 transitions. [2020-10-12 19:38:06,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-12 19:38:06,396 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:38:06,396 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] [2020-10-12 19:38:06,397 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 19:38:06,397 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:38:06,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:38:06,397 INFO L82 PathProgramCache]: Analyzing trace with hash 1656486796, now seen corresponding path program 1 times [2020-10-12 19:38:06,397 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:38:06,401 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1731803078] [2020-10-12 19:38:06,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:38:06,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:38:06,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:06,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:06,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:06,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:06,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:06,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:07,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:07,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:07,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:08,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:08,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:08,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:08,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:10,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:11,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:38:11,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 19:38:11,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-12 19:38:11,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-12 19:38:11,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:38:11,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 19:38:11,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 19:38:11,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-12 19:38:11,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:38:11,854 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-12 19:38:11,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:38:11,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:38:11,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:11,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:38:11,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:38:11,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:38:11,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 19:38:11,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:38:11,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:38:11,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:38:11,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 19:38:11,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:38:11,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:38:11,903 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1731803078] [2020-10-12 19:38:11,903 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:38:11,903 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-12 19:38:11,903 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292695727] [2020-10-12 19:38:11,904 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 19:38:11,904 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:38:11,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 19:38:11,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2020-10-12 19:38:11,905 INFO L87 Difference]: Start difference. First operand 965 states and 1373 transitions. Second operand 14 states. [2020-10-12 19:38:12,617 WARN L193 SmtUtils]: Spent 606.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 217 [2020-10-12 19:38:17,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:38:17,472 INFO L93 Difference]: Finished difference Result 1778 states and 2543 transitions. [2020-10-12 19:38:17,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-12 19:38:17,473 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 64 [2020-10-12 19:38:17,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:38:17,477 INFO L225 Difference]: With dead ends: 1778 [2020-10-12 19:38:17,477 INFO L226 Difference]: Without dead ends: 1501 [2020-10-12 19:38:17,479 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 480 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=399, Invalid=1407, Unknown=0, NotChecked=0, Total=1806 [2020-10-12 19:38:17,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1501 states. [2020-10-12 19:38:17,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1501 to 656. [2020-10-12 19:38:17,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 656 states. [2020-10-12 19:38:17,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 656 states to 656 states and 898 transitions. [2020-10-12 19:38:17,658 INFO L78 Accepts]: Start accepts. Automaton has 656 states and 898 transitions. Word has length 64 [2020-10-12 19:38:17,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:38:17,658 INFO L479 AbstractCegarLoop]: Abstraction has 656 states and 898 transitions. [2020-10-12 19:38:17,658 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 19:38:17,658 INFO L276 IsEmpty]: Start isEmpty. Operand 656 states and 898 transitions. [2020-10-12 19:38:17,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-12 19:38:17,660 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:38:17,660 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] [2020-10-12 19:38:17,660 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 19:38:17,660 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:38:17,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:38:17,661 INFO L82 PathProgramCache]: Analyzing trace with hash 668775028, now seen corresponding path program 1 times [2020-10-12 19:38:17,661 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:38:17,661 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1175248220] [2020-10-12 19:38:17,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:38:17,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:38:17,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:17,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:18,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:18,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:18,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:18,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:18,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:18,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:19,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:19,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:19,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:19,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:20,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:21,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:22,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:38:22,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 19:38:22,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-12 19:38:22,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-12 19:38:22,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:38:22,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 19:38:22,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 19:38:22,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-12 19:38:22,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:38:23,151 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-12 19:38:23,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:38:23,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:38:23,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:23,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:38:23,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:38:23,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:38:23,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 19:38:23,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:38:23,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:38:23,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:38:23,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 19:38:23,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:38:23,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:38:23,190 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1175248220] [2020-10-12 19:38:23,190 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:38:23,190 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-12 19:38:23,191 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431372691] [2020-10-12 19:38:23,191 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 19:38:23,191 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:38:23,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 19:38:23,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2020-10-12 19:38:23,192 INFO L87 Difference]: Start difference. First operand 656 states and 898 transitions. Second operand 14 states. [2020-10-12 19:38:23,568 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-10-12 19:38:27,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:38:27,673 INFO L93 Difference]: Finished difference Result 1508 states and 2122 transitions. [2020-10-12 19:38:27,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-12 19:38:27,674 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 64 [2020-10-12 19:38:27,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:38:27,678 INFO L225 Difference]: With dead ends: 1508 [2020-10-12 19:38:27,678 INFO L226 Difference]: Without dead ends: 1503 [2020-10-12 19:38:27,680 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=266, Invalid=924, Unknown=0, NotChecked=0, Total=1190 [2020-10-12 19:38:27,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1503 states. [2020-10-12 19:38:27,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1503 to 656. [2020-10-12 19:38:27,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 656 states. [2020-10-12 19:38:27,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 656 states to 656 states and 896 transitions. [2020-10-12 19:38:27,832 INFO L78 Accepts]: Start accepts. Automaton has 656 states and 896 transitions. Word has length 64 [2020-10-12 19:38:27,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:38:27,833 INFO L479 AbstractCegarLoop]: Abstraction has 656 states and 896 transitions. [2020-10-12 19:38:27,833 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 19:38:27,833 INFO L276 IsEmpty]: Start isEmpty. Operand 656 states and 896 transitions. [2020-10-12 19:38:27,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-12 19:38:27,834 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:38:27,834 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] [2020-10-12 19:38:27,834 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 19:38:27,835 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:38:27,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:38:27,835 INFO L82 PathProgramCache]: Analyzing trace with hash -1144270808, now seen corresponding path program 1 times [2020-10-12 19:38:27,835 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:38:27,835 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [335905441] [2020-10-12 19:38:27,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:38:27,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:38:27,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:27,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:27,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:28,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:28,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:28,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:29,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:29,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:29,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:30,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:30,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:30,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:31,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:32,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:38:32,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 19:38:32,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-12 19:38:32,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-12 19:38:32,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:38:32,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 19:38:32,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:38:32,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-12 19:38:32,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:38:33,671 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-12 19:38:33,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:38:33,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:38:33,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:33,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:38:33,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:38:33,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:38:33,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 19:38:33,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:38:33,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:38:33,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:38:33,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:38:33,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:38:33,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:38:33,708 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [335905441] [2020-10-12 19:38:33,708 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:38:33,708 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 19:38:33,708 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935264381] [2020-10-12 19:38:33,709 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 19:38:33,709 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:38:33,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 19:38:33,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-10-12 19:38:33,709 INFO L87 Difference]: Start difference. First operand 656 states and 896 transitions. Second operand 14 states. [2020-10-12 19:38:34,581 WARN L193 SmtUtils]: Spent 702.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 234 [2020-10-12 19:38:35,025 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2020-10-12 19:38:37,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:38:37,994 INFO L93 Difference]: Finished difference Result 1286 states and 1780 transitions. [2020-10-12 19:38:37,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-12 19:38:37,994 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 65 [2020-10-12 19:38:37,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:38:37,996 INFO L225 Difference]: With dead ends: 1286 [2020-10-12 19:38:37,996 INFO L226 Difference]: Without dead ends: 1277 [2020-10-12 19:38:37,997 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=119, Invalid=387, Unknown=0, NotChecked=0, Total=506 [2020-10-12 19:38:37,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1277 states. [2020-10-12 19:38:38,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1277 to 656. [2020-10-12 19:38:38,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 656 states. [2020-10-12 19:38:38,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 656 states to 656 states and 896 transitions. [2020-10-12 19:38:38,151 INFO L78 Accepts]: Start accepts. Automaton has 656 states and 896 transitions. Word has length 65 [2020-10-12 19:38:38,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:38:38,152 INFO L479 AbstractCegarLoop]: Abstraction has 656 states and 896 transitions. [2020-10-12 19:38:38,152 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 19:38:38,152 INFO L276 IsEmpty]: Start isEmpty. Operand 656 states and 896 transitions. [2020-10-12 19:38:38,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-12 19:38:38,159 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:38:38,159 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] [2020-10-12 19:38:38,159 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-12 19:38:38,159 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:38:38,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:38:38,160 INFO L82 PathProgramCache]: Analyzing trace with hash -522619658, now seen corresponding path program 1 times [2020-10-12 19:38:38,160 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:38:38,160 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [851526691] [2020-10-12 19:38:38,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:38:38,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:38:38,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:38,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:38,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:38,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:38,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:38,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:38,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:39,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:39,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:39,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:39,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:39,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:39,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:40,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:40,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:41,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:42,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:42,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:42,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:43,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:38:43,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 19:38:43,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 19 [2020-10-12 19:38:43,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-12 19:38:43,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:38:43,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 19:38:43,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:38:43,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-12 19:38:43,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:38:43,581 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2020-10-12 19:38:43,744 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 32 [2020-10-12 19:38:44,124 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-12 19:38:44,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:38:44,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:38:44,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:44,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:38:44,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:38:44,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:38:44,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 19:38:44,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:38:44,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:38:44,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:38:44,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:38:44,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:38:44,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:38:44,163 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [851526691] [2020-10-12 19:38:44,164 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:38:44,164 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 19:38:44,164 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562669606] [2020-10-12 19:38:44,164 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 19:38:44,164 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:38:44,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 19:38:44,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2020-10-12 19:38:44,177 INFO L87 Difference]: Start difference. First operand 656 states and 896 transitions. Second operand 16 states. [2020-10-12 19:38:44,587 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-10-12 19:38:45,233 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 65 [2020-10-12 19:38:45,454 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2020-10-12 19:38:48,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:38:48,561 INFO L93 Difference]: Finished difference Result 1077 states and 1426 transitions. [2020-10-12 19:38:48,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 19:38:48,561 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 65 [2020-10-12 19:38:48,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:38:48,563 INFO L225 Difference]: With dead ends: 1077 [2020-10-12 19:38:48,563 INFO L226 Difference]: Without dead ends: 1067 [2020-10-12 19:38:48,564 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=214, Invalid=976, Unknown=0, NotChecked=0, Total=1190 [2020-10-12 19:38:48,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1067 states. [2020-10-12 19:38:48,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1067 to 659. [2020-10-12 19:38:48,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 659 states. [2020-10-12 19:38:48,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 899 transitions. [2020-10-12 19:38:48,672 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 899 transitions. Word has length 65 [2020-10-12 19:38:48,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:38:48,673 INFO L479 AbstractCegarLoop]: Abstraction has 659 states and 899 transitions. [2020-10-12 19:38:48,673 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 19:38:48,673 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 899 transitions. [2020-10-12 19:38:48,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-12 19:38:48,674 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:38:48,674 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:38:48,674 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-12 19:38:48,678 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:38:48,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:38:48,678 INFO L82 PathProgramCache]: Analyzing trace with hash 1381325977, now seen corresponding path program 1 times [2020-10-12 19:38:48,679 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:38:48,679 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [265539996] [2020-10-12 19:38:48,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:38:48,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:38:48,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:48,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:48,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:48,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:48,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:49,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:50,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:50,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:50,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:50,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:50,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:50,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:50,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:52,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:52,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:52,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:52,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:53,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:38:53,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 19:38:53,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-12 19:38:53,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-12 19:38:53,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:38:53,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-12 19:38:53,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 19:38:53,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-12 19:38:53,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:38:54,432 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-12 19:38:54,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:38:54,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:38:54,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:38:54,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:38:54,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:38:54,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:38:54,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 19:38:54,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:38:54,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:38:54,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:38:54,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 19:38:54,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:38:54,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:38:54,486 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [265539996] [2020-10-12 19:38:54,486 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:38:54,486 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 19:38:54,486 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706594469] [2020-10-12 19:38:54,487 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-12 19:38:54,487 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:38:54,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-12 19:38:54,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2020-10-12 19:38:54,487 INFO L87 Difference]: Start difference. First operand 659 states and 899 transitions. Second operand 17 states. [2020-10-12 19:38:55,445 WARN L193 SmtUtils]: Spent 771.00 ms on a formula simplification. DAG size of input: 243 DAG size of output: 241