/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 SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 08:01:56,088 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:01:56,092 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:01:56,136 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:01:56,136 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:01:56,147 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:01:56,150 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:01:56,153 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:01:56,156 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:01:56,159 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:01:56,160 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:01:56,162 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:01:56,162 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:01:56,165 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:01:56,168 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:01:56,171 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:01:56,173 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:01:56,174 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:01:56,175 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:01:56,183 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:01:56,185 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:01:56,186 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:01:56,188 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:01:56,188 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:01:56,193 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:01:56,193 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:01:56,193 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:01:56,196 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:01:56,197 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:01:56,199 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:01:56,199 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:01:56,200 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:01:56,201 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:01:56,201 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:01:56,203 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:01:56,203 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:01:56,204 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:01:56,204 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:01:56,204 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:01:56,205 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:01:56,207 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:01:56,208 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 [2020-09-25 08:01:56,254 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:01:56,255 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:01:56,256 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:01:56,256 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:01:56,257 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:01:56,257 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:01:56,257 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 08:01:56,258 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:01:56,258 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 08:01:56,258 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:01:56,259 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:01:56,259 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:01:56,259 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:01:56,260 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 08:01:56,260 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:01:56,260 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:01:56,260 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:01:56,261 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:01:56,261 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:01:56,261 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:01:56,261 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:01:56,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:01:56,262 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:01:56,262 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:01:56,262 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:01:56,262 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:01:56,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:01:56,263 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:01:56,263 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:01:56,263 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 -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 08:01:56,690 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:01:56,714 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:01:56,721 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:01:56,722 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:01:56,723 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:01:56,724 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2020-09-25 08:01:56,793 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b0c1b5c89/58fbff4fc39b4c37ab76d41b19d95ca8/FLAGecb95f02f [2020-09-25 08:01:57,359 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:01:57,360 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2020-09-25 08:01:57,370 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b0c1b5c89/58fbff4fc39b4c37ab76d41b19d95ca8/FLAGecb95f02f [2020-09-25 08:01:57,673 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b0c1b5c89/58fbff4fc39b4c37ab76d41b19d95ca8 [2020-09-25 08:01:57,686 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:01:57,693 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:01:57,697 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:01:57,697 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:01:57,701 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:01:57,702 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:01:57" (1/1) ... [2020-09-25 08:01:57,707 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43ba14b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:01:57, skipping insertion in model container [2020-09-25 08:01:57,707 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:01:57" (1/1) ... [2020-09-25 08:01:57,718 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:01:57,784 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:01:58,050 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:01:58,057 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:01:58,106 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:01:58,132 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:01:58,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:01:58 WrapperNode [2020-09-25 08:01:58,134 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:01:58,134 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:01:58,135 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:01:58,135 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:01:58,232 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:01:58" (1/1) ... [2020-09-25 08:01:58,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:01:58" (1/1) ... [2020-09-25 08:01:58,248 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:01:58" (1/1) ... [2020-09-25 08:01:58,248 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:01:58" (1/1) ... [2020-09-25 08:01:58,256 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:01:58" (1/1) ... [2020-09-25 08:01:58,262 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:01:58" (1/1) ... [2020-09-25 08:01:58,264 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:01:58" (1/1) ... [2020-09-25 08:01:58,267 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:01:58,267 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:01:58,267 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:01:58,267 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:01:58,269 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:01:58" (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 [2020-09-25 08:01:58,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:01:58,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:01:58,346 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 08:01:58,346 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:01:58,347 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:01:58,347 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 08:01:58,347 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 08:01:58,347 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 08:01:58,348 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 08:01:58,348 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:01:58,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:01:58,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:01:58,948 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:01:58,948 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 08:01:58,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:01:58 BoogieIcfgContainer [2020-09-25 08:01:58,956 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:01:58,958 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:01:58,958 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:01:58,962 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:01:58,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:01:57" (1/3) ... [2020-09-25 08:01:58,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70546d88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:01:58, skipping insertion in model container [2020-09-25 08:01:58,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:01:58" (2/3) ... [2020-09-25 08:01:58,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70546d88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:01:58, skipping insertion in model container [2020-09-25 08:01:58,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:01:58" (3/3) ... [2020-09-25 08:01:58,967 INFO L109 eAbstractionObserver]: Analyzing ICFG apache-escape-absolute.i.v+cfa-reducer.c [2020-09-25 08:01:58,978 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:01:58,991 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 18 error locations. [2020-09-25 08:01:59,014 INFO L251 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2020-09-25 08:01:59,054 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:01:59,054 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:01:59,055 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:01:59,055 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:01:59,055 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:01:59,055 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:01:59,055 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:01:59,056 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:01:59,089 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states. [2020-09-25 08:01:59,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-09-25 08:01:59,098 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:01:59,100 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] [2020-09-25 08:01:59,101 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:01:59,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:01:59,108 INFO L82 PathProgramCache]: Analyzing trace with hash -2016263875, now seen corresponding path program 1 times [2020-09-25 08:01:59,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:01:59,118 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [636861496] [2020-09-25 08:01:59,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:01:59,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:01:59,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:01:59,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:01:59,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 08:01:59,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:01:59,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 334 [2020-09-25 08:01:59,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:01:59,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:01:59,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:01:59,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 08:01:59,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:01:59,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 08:01:59,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:01:59,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:01:59,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:01:59,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:01:59,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:01:59,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:01:59,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:01:59,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:01:59,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:01:59,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:01:59,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:01:59,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:01:59,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:01:59,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:01:59,726 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [636861496] [2020-09-25 08:01:59,729 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:01:59,729 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 08:01:59,730 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485476222] [2020-09-25 08:01:59,736 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 08:01:59,737 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:01:59,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 08:01:59,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:01:59,758 INFO L87 Difference]: Start difference. First operand 224 states. Second operand 7 states. [2020-09-25 08:02:00,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:02:00,532 INFO L93 Difference]: Finished difference Result 290 states and 336 transitions. [2020-09-25 08:02:00,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 08:02:00,534 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2020-09-25 08:02:00,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:02:00,552 INFO L225 Difference]: With dead ends: 290 [2020-09-25 08:02:00,552 INFO L226 Difference]: Without dead ends: 239 [2020-09-25 08:02:00,557 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2020-09-25 08:02:00,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2020-09-25 08:02:00,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 187. [2020-09-25 08:02:00,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2020-09-25 08:02:00,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 190 transitions. [2020-09-25 08:02:00,625 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 190 transitions. Word has length 38 [2020-09-25 08:02:00,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:02:00,626 INFO L479 AbstractCegarLoop]: Abstraction has 187 states and 190 transitions. [2020-09-25 08:02:00,626 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 08:02:00,626 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 190 transitions. [2020-09-25 08:02:00,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-25 08:02:00,628 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:02:00,628 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:02:00,629 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:02:00,629 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:02:00,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:02:00,630 INFO L82 PathProgramCache]: Analyzing trace with hash -1105206656, now seen corresponding path program 1 times [2020-09-25 08:02:00,630 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:02:00,630 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1215788090] [2020-09-25 08:02:00,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:02:00,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:00,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:00,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:00,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 08:02:00,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:00,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-09-25 08:02:00,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:00,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:00,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:02:00,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-25 08:02:00,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 08:02:00,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:02:00,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:02:00,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:00,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:00,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:00,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:00,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:00,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:02:00,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:00,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:00,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:02:00,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:00,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:02:00,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:00,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:02:00,990 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1215788090] [2020-09-25 08:02:00,991 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:02:00,991 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 08:02:00,991 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154871340] [2020-09-25 08:02:00,993 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 08:02:00,994 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:02:00,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 08:02:00,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 08:02:00,995 INFO L87 Difference]: Start difference. First operand 187 states and 190 transitions. Second operand 8 states. [2020-09-25 08:02:01,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:02:01,269 INFO L93 Difference]: Finished difference Result 187 states and 190 transitions. [2020-09-25 08:02:01,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 08:02:01,269 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 43 [2020-09-25 08:02:01,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:02:01,272 INFO L225 Difference]: With dead ends: 187 [2020-09-25 08:02:01,272 INFO L226 Difference]: Without dead ends: 185 [2020-09-25 08:02:01,273 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-25 08:02:01,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-09-25 08:02:01,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2020-09-25 08:02:01,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2020-09-25 08:02:01,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 188 transitions. [2020-09-25 08:02:01,288 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 188 transitions. Word has length 43 [2020-09-25 08:02:01,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:02:01,288 INFO L479 AbstractCegarLoop]: Abstraction has 185 states and 188 transitions. [2020-09-25 08:02:01,288 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 08:02:01,289 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 188 transitions. [2020-09-25 08:02:01,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-25 08:02:01,290 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:02:01,290 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] [2020-09-25 08:02:01,291 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 08:02:01,291 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:02:01,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:02:01,292 INFO L82 PathProgramCache]: Analyzing trace with hash -1193283001, now seen corresponding path program 1 times [2020-09-25 08:02:01,292 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:02:01,292 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1492926111] [2020-09-25 08:02:01,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:02:01,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:01,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:01,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:01,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 08:02:01,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:01,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-09-25 08:02:01,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:01,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:01,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:02:01,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 08:02:01,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 08:02:01,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:01,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:02:01,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:01,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:01,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:01,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:01,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:01,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:02:01,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:01,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:01,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:02:01,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:01,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:02:01,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:01,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:02:01,534 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1492926111] [2020-09-25 08:02:01,534 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:02:01,534 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 08:02:01,534 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617922257] [2020-09-25 08:02:01,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 08:02:01,535 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:02:01,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 08:02:01,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:02:01,536 INFO L87 Difference]: Start difference. First operand 185 states and 188 transitions. Second operand 7 states. [2020-09-25 08:02:02,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:02:02,077 INFO L93 Difference]: Finished difference Result 237 states and 242 transitions. [2020-09-25 08:02:02,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 08:02:02,079 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 53 [2020-09-25 08:02:02,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:02:02,083 INFO L225 Difference]: With dead ends: 237 [2020-09-25 08:02:02,083 INFO L226 Difference]: Without dead ends: 235 [2020-09-25 08:02:02,084 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-25 08:02:02,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2020-09-25 08:02:02,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 183. [2020-09-25 08:02:02,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-09-25 08:02:02,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 186 transitions. [2020-09-25 08:02:02,096 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 186 transitions. Word has length 53 [2020-09-25 08:02:02,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:02:02,097 INFO L479 AbstractCegarLoop]: Abstraction has 183 states and 186 transitions. [2020-09-25 08:02:02,097 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 08:02:02,097 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 186 transitions. [2020-09-25 08:02:02,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-25 08:02:02,099 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:02:02,099 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] [2020-09-25 08:02:02,099 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 08:02:02,100 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:02:02,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:02:02,100 INFO L82 PathProgramCache]: Analyzing trace with hash 1236242579, now seen corresponding path program 1 times [2020-09-25 08:02:02,100 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:02:02,101 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [372703991] [2020-09-25 08:02:02,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:02:02,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:02,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:02,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:02,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:02,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 08:02:02,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:02:02,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 404 [2020-09-25 08:02:02,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:02,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:02,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:02:02,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-25 08:02:02,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 08:02:02,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:02:02,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:02:02,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:02,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:02,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:02,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:02,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:02,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:02:02,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:02,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:02,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:02:02,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:02,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:02:02,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:02,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:02:02,589 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [372703991] [2020-09-25 08:02:02,590 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:02:02,590 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 08:02:02,590 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587666672] [2020-09-25 08:02:02,591 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 08:02:02,591 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:02:02,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 08:02:02,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:02:02,592 INFO L87 Difference]: Start difference. First operand 183 states and 186 transitions. Second operand 7 states. [2020-09-25 08:02:02,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:02:02,827 INFO L93 Difference]: Finished difference Result 183 states and 186 transitions. [2020-09-25 08:02:02,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 08:02:02,828 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 58 [2020-09-25 08:02:02,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:02:02,830 INFO L225 Difference]: With dead ends: 183 [2020-09-25 08:02:02,830 INFO L226 Difference]: Without dead ends: 181 [2020-09-25 08:02:02,830 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-09-25 08:02:02,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2020-09-25 08:02:02,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2020-09-25 08:02:02,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2020-09-25 08:02:02,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 184 transitions. [2020-09-25 08:02:02,847 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 184 transitions. Word has length 58 [2020-09-25 08:02:02,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:02:02,848 INFO L479 AbstractCegarLoop]: Abstraction has 181 states and 184 transitions. [2020-09-25 08:02:02,848 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 08:02:02,848 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 184 transitions. [2020-09-25 08:02:02,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-25 08:02:02,850 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:02:02,850 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] [2020-09-25 08:02:02,850 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 08:02:02,850 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:02:02,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:02:02,853 INFO L82 PathProgramCache]: Analyzing trace with hash -1703094031, now seen corresponding path program 1 times [2020-09-25 08:02:02,853 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:02:02,853 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [249434820] [2020-09-25 08:02:02,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:02:02,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:02,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:02,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:03,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:03,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:03,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 08:02:03,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:02:03,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 449 [2020-09-25 08:02:03,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:03,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:03,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:02:03,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 08:02:03,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 08:02:03,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:03,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:02:03,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:03,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:03,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:03,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:03,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:03,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:02:03,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:03,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:03,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:02:03,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:03,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:02:03,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:03,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:02:03,411 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [249434820] [2020-09-25 08:02:03,411 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:02:03,411 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 08:02:03,412 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236194792] [2020-09-25 08:02:03,413 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 08:02:03,413 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:02:03,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 08:02:03,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:02:03,414 INFO L87 Difference]: Start difference. First operand 181 states and 184 transitions. Second operand 7 states. [2020-09-25 08:02:04,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:02:04,086 INFO L93 Difference]: Finished difference Result 305 states and 311 transitions. [2020-09-25 08:02:04,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 08:02:04,087 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2020-09-25 08:02:04,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:02:04,092 INFO L225 Difference]: With dead ends: 305 [2020-09-25 08:02:04,093 INFO L226 Difference]: Without dead ends: 303 [2020-09-25 08:02:04,093 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2020-09-25 08:02:04,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-09-25 08:02:04,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 192. [2020-09-25 08:02:04,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2020-09-25 08:02:04,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 197 transitions. [2020-09-25 08:02:04,120 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 197 transitions. Word has length 64 [2020-09-25 08:02:04,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:02:04,124 INFO L479 AbstractCegarLoop]: Abstraction has 192 states and 197 transitions. [2020-09-25 08:02:04,124 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 08:02:04,124 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 197 transitions. [2020-09-25 08:02:04,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-25 08:02:04,126 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:02:04,126 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:02:04,126 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 08:02:04,128 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:02:04,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:02:04,129 INFO L82 PathProgramCache]: Analyzing trace with hash -1179531825, now seen corresponding path program 1 times [2020-09-25 08:02:04,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:02:04,129 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [851830989] [2020-09-25 08:02:04,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:02:04,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:04,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:04,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:04,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:04,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 08:02:04,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:02:04,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 476 [2020-09-25 08:02:04,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:04,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:04,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:02:04,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 08:02:04,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 08:02:04,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:04,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:02:04,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:04,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:04,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:04,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:04,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:04,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:02:04,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:04,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:04,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:02:04,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:04,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:02:04,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 08:02:04,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:02:04,733 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [851830989] [2020-09-25 08:02:04,734 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:02:04,734 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 08:02:04,734 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515566058] [2020-09-25 08:02:04,736 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 08:02:04,737 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:02:04,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 08:02:04,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:02:04,738 INFO L87 Difference]: Start difference. First operand 192 states and 197 transitions. Second operand 7 states. [2020-09-25 08:02:05,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:02:05,752 INFO L93 Difference]: Finished difference Result 471 states and 480 transitions. [2020-09-25 08:02:05,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 08:02:05,752 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 69 [2020-09-25 08:02:05,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:02:05,758 INFO L225 Difference]: With dead ends: 471 [2020-09-25 08:02:05,758 INFO L226 Difference]: Without dead ends: 469 [2020-09-25 08:02:05,759 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2020-09-25 08:02:05,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2020-09-25 08:02:05,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 197. [2020-09-25 08:02:05,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2020-09-25 08:02:05,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 202 transitions. [2020-09-25 08:02:05,770 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 202 transitions. Word has length 69 [2020-09-25 08:02:05,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:02:05,772 INFO L479 AbstractCegarLoop]: Abstraction has 197 states and 202 transitions. [2020-09-25 08:02:05,772 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 08:02:05,772 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 202 transitions. [2020-09-25 08:02:05,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-25 08:02:05,779 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:02:05,780 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:02:05,780 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 08:02:05,780 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:02:05,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:02:05,781 INFO L82 PathProgramCache]: Analyzing trace with hash -1472635957, now seen corresponding path program 1 times [2020-09-25 08:02:05,781 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:02:05,781 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [161692031] [2020-09-25 08:02:05,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:02:05,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:05,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:05,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:05,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:06,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:06,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:09,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:09,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 08:02:09,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:02:09,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3770 [2020-09-25 08:02:09,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:09,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:09,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:02:09,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-09-25 08:02:09,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 08:02:09,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:09,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:02:09,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:09,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:09,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:09,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:09,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:09,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:02:09,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:09,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:09,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:02:09,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:09,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:02:09,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:02:09,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:02:09,682 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [161692031] [2020-09-25 08:02:09,683 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:02:09,683 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 08:02:09,684 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508320307] [2020-09-25 08:02:09,685 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 08:02:09,686 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:02:09,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 08:02:09,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:02:09,687 INFO L87 Difference]: Start difference. First operand 197 states and 202 transitions. Second operand 7 states. [2020-09-25 08:02:10,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:02:10,249 INFO L93 Difference]: Finished difference Result 298 states and 304 transitions. [2020-09-25 08:02:10,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 08:02:10,250 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 69 [2020-09-25 08:02:10,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:02:10,252 INFO L225 Difference]: With dead ends: 298 [2020-09-25 08:02:10,252 INFO L226 Difference]: Without dead ends: 296 [2020-09-25 08:02:10,253 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-09-25 08:02:10,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-09-25 08:02:10,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 207. [2020-09-25 08:02:10,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207 states. [2020-09-25 08:02:10,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 212 transitions. [2020-09-25 08:02:10,262 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 212 transitions. Word has length 69 [2020-09-25 08:02:10,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:02:10,263 INFO L479 AbstractCegarLoop]: Abstraction has 207 states and 212 transitions. [2020-09-25 08:02:10,263 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 08:02:10,263 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 212 transitions. [2020-09-25 08:02:10,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-09-25 08:02:10,265 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:02:10,266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:02:10,266 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 08:02:10,266 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:02:10,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:02:10,267 INFO L82 PathProgramCache]: Analyzing trace with hash 645172388, now seen corresponding path program 1 times [2020-09-25 08:02:10,267 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:02:10,267 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1966940810] [2020-09-25 08:02:10,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:02:10,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:10,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:10,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:10,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:11,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:11,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 08:02:11,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:02:11,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1632 [2020-09-25 08:02:11,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:11,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:11,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:02:11,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-25 08:02:11,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 08:02:11,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:11,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:02:11,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:11,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:11,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:11,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:11,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:11,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:02:11,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:11,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:11,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:02:11,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:11,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:02:11,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:11,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:02:11,985 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1966940810] [2020-09-25 08:02:11,986 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:02:11,986 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 08:02:11,986 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098606104] [2020-09-25 08:02:11,987 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 08:02:11,987 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:02:11,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 08:02:11,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:02:11,988 INFO L87 Difference]: Start difference. First operand 207 states and 212 transitions. Second operand 7 states. [2020-09-25 08:02:12,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:02:12,458 INFO L93 Difference]: Finished difference Result 316 states and 322 transitions. [2020-09-25 08:02:12,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 08:02:12,460 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 74 [2020-09-25 08:02:12,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:02:12,462 INFO L225 Difference]: With dead ends: 316 [2020-09-25 08:02:12,462 INFO L226 Difference]: Without dead ends: 314 [2020-09-25 08:02:12,463 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2020-09-25 08:02:12,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2020-09-25 08:02:12,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 205. [2020-09-25 08:02:12,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-09-25 08:02:12,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 210 transitions. [2020-09-25 08:02:12,474 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 210 transitions. Word has length 74 [2020-09-25 08:02:12,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:02:12,474 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 210 transitions. [2020-09-25 08:02:12,474 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 08:02:12,475 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 210 transitions. [2020-09-25 08:02:12,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-09-25 08:02:12,481 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:02:12,481 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:02:12,481 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 08:02:12,481 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:02:12,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:02:12,482 INFO L82 PathProgramCache]: Analyzing trace with hash 1017357829, now seen corresponding path program 1 times [2020-09-25 08:02:12,482 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:02:12,482 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1851427605] [2020-09-25 08:02:12,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:02:12,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:12,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:12,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:12,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:14,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:14,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 08:02:14,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:02:14,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1568 [2020-09-25 08:02:14,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:14,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:14,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:02:14,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-25 08:02:14,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 08:02:14,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:14,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:02:14,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:14,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:14,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:14,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:14,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:14,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:02:14,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:14,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:14,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:02:14,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:14,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:02:14,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:14,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:02:14,182 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1851427605] [2020-09-25 08:02:14,183 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:02:14,183 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 08:02:14,184 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672252902] [2020-09-25 08:02:14,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 08:02:14,185 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:02:14,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 08:02:14,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:02:14,186 INFO L87 Difference]: Start difference. First operand 205 states and 210 transitions. Second operand 7 states. [2020-09-25 08:02:14,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:02:14,529 INFO L93 Difference]: Finished difference Result 205 states and 210 transitions. [2020-09-25 08:02:14,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 08:02:14,529 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 74 [2020-09-25 08:02:14,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:02:14,531 INFO L225 Difference]: With dead ends: 205 [2020-09-25 08:02:14,531 INFO L226 Difference]: Without dead ends: 203 [2020-09-25 08:02:14,532 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-09-25 08:02:14,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2020-09-25 08:02:14,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 193. [2020-09-25 08:02:14,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2020-09-25 08:02:14,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 198 transitions. [2020-09-25 08:02:14,541 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 198 transitions. Word has length 74 [2020-09-25 08:02:14,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:02:14,541 INFO L479 AbstractCegarLoop]: Abstraction has 193 states and 198 transitions. [2020-09-25 08:02:14,542 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 08:02:14,542 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 198 transitions. [2020-09-25 08:02:14,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-09-25 08:02:14,543 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:02:14,543 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:02:14,543 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 08:02:14,543 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:02:14,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:02:14,544 INFO L82 PathProgramCache]: Analyzing trace with hash -2127372300, now seen corresponding path program 1 times [2020-09-25 08:02:14,544 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:02:14,544 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2104604985] [2020-09-25 08:02:14,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:02:14,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:14,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:14,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:14,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:14,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:16,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:16,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-25 08:02:16,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:02:16,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1662 [2020-09-25 08:02:16,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:16,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:16,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:02:16,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-09-25 08:02:16,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 08:02:16,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:16,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:02:16,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:16,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:16,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:16,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:16,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:16,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:02:16,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:16,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:16,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:02:16,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:16,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:02:16,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:16,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:02:16,268 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2104604985] [2020-09-25 08:02:16,268 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:02:16,269 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 08:02:16,269 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873129806] [2020-09-25 08:02:16,269 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 08:02:16,269 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:02:16,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 08:02:16,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 08:02:16,270 INFO L87 Difference]: Start difference. First operand 193 states and 198 transitions. Second operand 4 states. [2020-09-25 08:02:16,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:02:16,541 INFO L93 Difference]: Finished difference Result 292 states and 298 transitions. [2020-09-25 08:02:16,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 08:02:16,542 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 75 [2020-09-25 08:02:16,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:02:16,543 INFO L225 Difference]: With dead ends: 292 [2020-09-25 08:02:16,544 INFO L226 Difference]: Without dead ends: 193 [2020-09-25 08:02:16,545 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:02:16,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2020-09-25 08:02:16,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2020-09-25 08:02:16,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2020-09-25 08:02:16,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 196 transitions. [2020-09-25 08:02:16,552 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 196 transitions. Word has length 75 [2020-09-25 08:02:16,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:02:16,552 INFO L479 AbstractCegarLoop]: Abstraction has 193 states and 196 transitions. [2020-09-25 08:02:16,553 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 08:02:16,553 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 196 transitions. [2020-09-25 08:02:16,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-09-25 08:02:16,554 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:02:16,554 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:02:16,554 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 08:02:16,554 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:02:16,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:02:16,555 INFO L82 PathProgramCache]: Analyzing trace with hash 661067438, now seen corresponding path program 1 times [2020-09-25 08:02:16,555 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:02:16,555 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1718654229] [2020-09-25 08:02:16,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:02:16,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:16,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:16,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:16,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:17,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:17,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:17,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:19,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:19,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-09-25 08:02:19,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 08:02:19,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2501 [2020-09-25 08:02:19,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:19,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:19,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:02:19,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 08:02:19,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-25 08:02:19,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:19,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:02:19,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:19,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:19,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:19,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:19,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:19,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:02:19,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:19,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:19,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:02:19,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:19,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:02:19,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:02:19,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:02:19,208 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1718654229] [2020-09-25 08:02:19,208 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:02:19,209 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 08:02:19,209 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087501127] [2020-09-25 08:02:19,209 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 08:02:19,210 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:02:19,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 08:02:19,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 08:02:19,211 INFO L87 Difference]: Start difference. First operand 193 states and 196 transitions. Second operand 8 states. [2020-09-25 08:02:19,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:02:19,646 INFO L93 Difference]: Finished difference Result 193 states and 196 transitions. [2020-09-25 08:02:19,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 08:02:19,646 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 80 [2020-09-25 08:02:19,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:02:19,648 INFO L225 Difference]: With dead ends: 193 [2020-09-25 08:02:19,648 INFO L226 Difference]: Without dead ends: 191 [2020-09-25 08:02:19,648 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2020-09-25 08:02:19,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2020-09-25 08:02:19,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 191. [2020-09-25 08:02:19,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-09-25 08:02:19,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 194 transitions. [2020-09-25 08:02:19,656 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 194 transitions. Word has length 80 [2020-09-25 08:02:19,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:02:19,656 INFO L479 AbstractCegarLoop]: Abstraction has 191 states and 194 transitions. [2020-09-25 08:02:19,656 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 08:02:19,657 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 194 transitions. [2020-09-25 08:02:19,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 08:02:19,657 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:02:19,658 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:02:19,658 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 08:02:19,658 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:02:19,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:02:19,659 INFO L82 PathProgramCache]: Analyzing trace with hash -111708917, now seen corresponding path program 1 times [2020-09-25 08:02:19,659 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:02:19,659 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [501821903] [2020-09-25 08:02:19,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:02:19,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:19,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:19,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:19,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:19,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:24,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:24,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 08:02:24,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:02:24,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4995 [2020-09-25 08:02:24,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:24,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:24,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:02:24,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-25 08:02:24,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 08:02:24,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:24,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:02:24,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:24,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:24,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:24,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:24,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:24,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:02:24,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:24,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:24,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:02:24,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:24,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:02:24,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:24,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:02:24,736 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [501821903] [2020-09-25 08:02:24,736 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:02:24,736 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 08:02:24,737 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515641052] [2020-09-25 08:02:24,737 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 08:02:24,737 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:02:24,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 08:02:24,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:02:24,738 INFO L87 Difference]: Start difference. First operand 191 states and 194 transitions. Second operand 7 states. [2020-09-25 08:02:24,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:02:24,991 INFO L93 Difference]: Finished difference Result 191 states and 194 transitions. [2020-09-25 08:02:24,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 08:02:24,992 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 85 [2020-09-25 08:02:24,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:02:24,993 INFO L225 Difference]: With dead ends: 191 [2020-09-25 08:02:24,993 INFO L226 Difference]: Without dead ends: 189 [2020-09-25 08:02:24,994 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-09-25 08:02:24,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2020-09-25 08:02:25,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2020-09-25 08:02:25,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-09-25 08:02:25,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 192 transitions. [2020-09-25 08:02:25,018 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 192 transitions. Word has length 85 [2020-09-25 08:02:25,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:02:25,018 INFO L479 AbstractCegarLoop]: Abstraction has 189 states and 192 transitions. [2020-09-25 08:02:25,018 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 08:02:25,018 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 192 transitions. [2020-09-25 08:02:25,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-25 08:02:25,019 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:02:25,019 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:02:25,020 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 08:02:25,020 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:02:25,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:02:25,020 INFO L82 PathProgramCache]: Analyzing trace with hash 462594596, now seen corresponding path program 1 times [2020-09-25 08:02:25,020 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:02:25,021 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1801472130] [2020-09-25 08:02:25,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:02:25,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:25,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:25,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:25,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:27,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:27,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-25 08:02:27,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:02:27,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2155 [2020-09-25 08:02:27,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:27,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:27,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 08:02:27,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 08:02:27,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-25 08:02:27,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:27,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:02:27,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:27,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:27,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:27,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:27,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:27,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:02:27,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:27,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:27,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:02:27,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:27,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:02:27,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:27,317 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 08:02:27,317 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1801472130] [2020-09-25 08:02:27,318 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:02:27,318 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 08:02:27,318 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443698168] [2020-09-25 08:02:27,319 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 08:02:27,319 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:02:27,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 08:02:27,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 08:02:27,320 INFO L87 Difference]: Start difference. First operand 189 states and 192 transitions. Second operand 8 states. [2020-09-25 08:02:28,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:02:28,026 INFO L93 Difference]: Finished difference Result 279 states and 283 transitions. [2020-09-25 08:02:28,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 08:02:28,026 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 86 [2020-09-25 08:02:28,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:02:28,028 INFO L225 Difference]: With dead ends: 279 [2020-09-25 08:02:28,028 INFO L226 Difference]: Without dead ends: 277 [2020-09-25 08:02:28,029 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2020-09-25 08:02:28,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2020-09-25 08:02:28,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 182. [2020-09-25 08:02:28,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-09-25 08:02:28,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 185 transitions. [2020-09-25 08:02:28,039 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 185 transitions. Word has length 86 [2020-09-25 08:02:28,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:02:28,039 INFO L479 AbstractCegarLoop]: Abstraction has 182 states and 185 transitions. [2020-09-25 08:02:28,040 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 08:02:28,040 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 185 transitions. [2020-09-25 08:02:28,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-25 08:02:28,041 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:02:28,041 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:02:28,041 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 08:02:28,041 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:02:28,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:02:28,042 INFO L82 PathProgramCache]: Analyzing trace with hash -748130612, now seen corresponding path program 1 times [2020-09-25 08:02:28,042 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:02:28,043 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1500436594] [2020-09-25 08:02:28,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:02:28,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:28,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:28,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:28,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:30,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:30,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-25 08:02:30,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:02:30,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2067 [2020-09-25 08:02:30,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:30,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:30,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 08:02:30,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 08:02:30,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-25 08:02:30,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:30,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:02:30,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:30,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:30,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:30,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:30,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:30,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:02:30,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:30,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:30,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:02:30,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:30,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:02:30,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:30,227 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 08:02:30,227 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1500436594] [2020-09-25 08:02:30,227 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:02:30,227 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 08:02:30,228 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612810798] [2020-09-25 08:02:30,228 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 08:02:30,228 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:02:30,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 08:02:30,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 08:02:30,229 INFO L87 Difference]: Start difference. First operand 182 states and 185 transitions. Second operand 8 states. [2020-09-25 08:02:30,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:02:30,565 INFO L93 Difference]: Finished difference Result 182 states and 185 transitions. [2020-09-25 08:02:30,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 08:02:30,565 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 86 [2020-09-25 08:02:30,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:02:30,567 INFO L225 Difference]: With dead ends: 182 [2020-09-25 08:02:30,567 INFO L226 Difference]: Without dead ends: 180 [2020-09-25 08:02:30,567 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2020-09-25 08:02:30,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-09-25 08:02:30,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 169. [2020-09-25 08:02:30,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-09-25 08:02:30,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 171 transitions. [2020-09-25 08:02:30,573 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 171 transitions. Word has length 86 [2020-09-25 08:02:30,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:02:30,573 INFO L479 AbstractCegarLoop]: Abstraction has 169 states and 171 transitions. [2020-09-25 08:02:30,574 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 08:02:30,574 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 171 transitions. [2020-09-25 08:02:30,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-09-25 08:02:30,574 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:02:30,575 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:02:30,575 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-25 08:02:30,575 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:02:30,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:02:30,576 INFO L82 PathProgramCache]: Analyzing trace with hash -228867626, now seen corresponding path program 1 times [2020-09-25 08:02:30,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:02:30,576 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1181646983] [2020-09-25 08:02:30,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:02:30,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:30,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:30,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:30,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:30,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:30,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:31,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:31,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:35,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:35,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-25 08:02:35,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 08:02:35,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 08:02:35,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:35,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:35,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 08:02:35,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 08:02:35,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 08:02:35,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:35,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:02:35,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:35,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:35,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:35,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:35,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:35,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:02:35,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:35,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:35,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:02:35,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:35,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:02:35,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:35,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:02:35,717 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1181646983] [2020-09-25 08:02:35,717 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:02:35,717 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 08:02:35,717 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451528746] [2020-09-25 08:02:35,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 08:02:35,718 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:02:35,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 08:02:35,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 08:02:35,718 INFO L87 Difference]: Start difference. First operand 169 states and 171 transitions. Second operand 8 states. [2020-09-25 08:02:36,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:02:36,225 INFO L93 Difference]: Finished difference Result 169 states and 171 transitions. [2020-09-25 08:02:36,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 08:02:36,225 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 99 [2020-09-25 08:02:36,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:02:36,226 INFO L225 Difference]: With dead ends: 169 [2020-09-25 08:02:36,227 INFO L226 Difference]: Without dead ends: 167 [2020-09-25 08:02:36,227 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-09-25 08:02:36,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2020-09-25 08:02:36,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2020-09-25 08:02:36,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-09-25 08:02:36,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 169 transitions. [2020-09-25 08:02:36,233 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 169 transitions. Word has length 99 [2020-09-25 08:02:36,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:02:36,234 INFO L479 AbstractCegarLoop]: Abstraction has 167 states and 169 transitions. [2020-09-25 08:02:36,234 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 08:02:36,234 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 169 transitions. [2020-09-25 08:02:36,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-09-25 08:02:36,235 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:02:36,235 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:02:36,235 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-25 08:02:36,236 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:02:36,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:02:36,236 INFO L82 PathProgramCache]: Analyzing trace with hash -101561912, now seen corresponding path program 1 times [2020-09-25 08:02:36,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:02:36,236 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1185652908] [2020-09-25 08:02:36,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:02:36,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:36,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:36,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:36,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:36,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:36,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:41,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:41,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 08:02:41,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:02:41,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 08:02:41,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:41,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:41,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:02:41,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-25 08:02:41,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 08:02:41,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:02:41,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:02:41,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:41,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:41,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:41,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:41,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:41,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:02:41,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:41,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:41,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:02:41,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:41,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:02:41,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:41,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:02:41,335 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1185652908] [2020-09-25 08:02:41,335 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:02:41,336 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 08:02:41,336 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216925451] [2020-09-25 08:02:41,336 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 08:02:41,336 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:02:41,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 08:02:41,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 08:02:41,337 INFO L87 Difference]: Start difference. First operand 167 states and 169 transitions. Second operand 8 states. [2020-09-25 08:02:41,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:02:41,871 INFO L93 Difference]: Finished difference Result 207 states and 210 transitions. [2020-09-25 08:02:41,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 08:02:41,871 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 104 [2020-09-25 08:02:41,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:02:41,874 INFO L225 Difference]: With dead ends: 207 [2020-09-25 08:02:41,874 INFO L226 Difference]: Without dead ends: 205 [2020-09-25 08:02:41,875 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-25 08:02:41,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-09-25 08:02:41,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 165. [2020-09-25 08:02:41,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2020-09-25 08:02:41,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 167 transitions. [2020-09-25 08:02:41,881 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 167 transitions. Word has length 104 [2020-09-25 08:02:41,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:02:41,881 INFO L479 AbstractCegarLoop]: Abstraction has 165 states and 167 transitions. [2020-09-25 08:02:41,881 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 08:02:41,881 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 167 transitions. [2020-09-25 08:02:41,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-09-25 08:02:41,882 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:02:41,882 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:02:41,883 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-25 08:02:41,883 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:02:41,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:02:41,883 INFO L82 PathProgramCache]: Analyzing trace with hash 1039394916, now seen corresponding path program 1 times [2020-09-25 08:02:41,883 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:02:41,884 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1388436364] [2020-09-25 08:02:41,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:02:41,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:41,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:41,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:41,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:41,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:42,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:43,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:43,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:43,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:46,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:46,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-09-25 08:02:46,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 08:02:46,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-09-25 08:02:46,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:46,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:46,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 08:02:46,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 08:02:46,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-09-25 08:02:46,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:46,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:02:46,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:46,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:46,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:02:46,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:02:46,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:02:46,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:02:46,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:02:46,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:02:46,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:02:46,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:02:46,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:02:46,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:02:47,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:02:47,010 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1388436364] [2020-09-25 08:02:47,010 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:02:47,011 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 08:02:47,011 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812754670] [2020-09-25 08:02:47,011 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 08:02:47,011 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:02:47,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 08:02:47,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 08:02:47,012 INFO L87 Difference]: Start difference. First operand 165 states and 167 transitions. Second operand 8 states. [2020-09-25 08:02:47,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:02:47,488 INFO L93 Difference]: Finished difference Result 170 states and 172 transitions. [2020-09-25 08:02:47,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 08:02:47,489 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 111 [2020-09-25 08:02:47,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:02:47,490 INFO L225 Difference]: With dead ends: 170 [2020-09-25 08:02:47,492 INFO L226 Difference]: Without dead ends: 168 [2020-09-25 08:02:47,493 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2020-09-25 08:02:47,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2020-09-25 08:02:47,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 163. [2020-09-25 08:02:47,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-09-25 08:02:47,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 165 transitions. [2020-09-25 08:02:47,501 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 165 transitions. Word has length 111 [2020-09-25 08:02:47,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:02:47,502 INFO L479 AbstractCegarLoop]: Abstraction has 163 states and 165 transitions. [2020-09-25 08:02:47,502 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 08:02:47,502 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 165 transitions. [2020-09-25 08:02:47,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-09-25 08:02:47,504 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:02:47,504 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:02:47,504 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-09-25 08:02:47,504 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:02:47,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:02:47,505 INFO L82 PathProgramCache]: Analyzing trace with hash -109554473, now seen corresponding path program 1 times [2020-09-25 08:02:47,505 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:02:47,505 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1874942196] [2020-09-25 08:02:47,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:02:47,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:02:47,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:47,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:47,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:47,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:02:47,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking...