/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=SHALLOWEST --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-get-tag.i.p+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:04:52,974 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:04:52,978 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:04:53,024 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:04:53,025 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:04:53,035 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:04:53,038 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:04:53,042 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:04:53,045 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:04:53,048 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:04:53,049 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:04:53,050 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:04:53,051 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:04:53,054 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:04:53,057 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:04:53,059 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:04:53,061 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:04:53,062 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:04:53,064 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:04:53,073 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:04:53,076 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:04:53,077 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:04:53,078 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:04:53,079 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:04:53,082 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:04:53,082 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:04:53,082 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:04:53,086 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:04:53,086 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:04:53,090 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:04:53,090 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:04:53,091 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:04:53,092 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:04:53,093 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:04:53,094 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:04:53,094 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:04:53,095 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:04:53,095 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:04:53,096 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:04:53,097 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:04:53,098 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:04:53,099 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 00:04:53,150 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:04:53,150 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:04:53,152 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:04:53,152 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:04:53,153 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:04:53,153 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:04:53,153 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:04:53,154 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:04:53,154 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:04:53,154 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:04:53,155 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:04:53,155 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:04:53,156 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:04:53,156 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:04:53,156 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:04:53,156 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:04:53,157 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:04:53,157 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:04:53,157 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:04:53,158 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:04:53,158 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:04:53,159 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:04:53,159 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:04:53,159 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:04:53,159 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:04:53,159 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:04:53,160 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:04:53,160 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:04:53,160 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:04:53,160 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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;log-additional-information=true; [2020-09-25 00:04:53,604 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:04:53,629 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:04:53,635 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:04:53,638 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:04:53,638 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:04:53,639 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+lhb-reducer.c [2020-09-25 00:04:53,722 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/92cad2eab/164a08939c1b4e548163faf40c1899d1/FLAGd66f29f22 [2020-09-25 00:04:54,323 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:04:54,324 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+lhb-reducer.c [2020-09-25 00:04:54,338 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/92cad2eab/164a08939c1b4e548163faf40c1899d1/FLAGd66f29f22 [2020-09-25 00:04:54,612 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/92cad2eab/164a08939c1b4e548163faf40c1899d1 [2020-09-25 00:04:54,624 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:04:54,629 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:04:54,630 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:04:54,630 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:04:54,635 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:04:54,636 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:04:54" (1/1) ... [2020-09-25 00:04:54,640 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c364e78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:54, skipping insertion in model container [2020-09-25 00:04:54,640 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:04:54" (1/1) ... [2020-09-25 00:04:54,649 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:04:54,704 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:04:55,031 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:04:55,038 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:04:55,216 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:04:55,234 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:04:55,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:55 WrapperNode [2020-09-25 00:04:55,235 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:04:55,236 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:04:55,236 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:04:55,236 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:04:55,253 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:55" (1/1) ... [2020-09-25 00:04:55,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:55" (1/1) ... [2020-09-25 00:04:55,266 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:55" (1/1) ... [2020-09-25 00:04:55,266 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:55" (1/1) ... [2020-09-25 00:04:55,295 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:55" (1/1) ... [2020-09-25 00:04:55,306 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:55" (1/1) ... [2020-09-25 00:04:55,309 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:55" (1/1) ... [2020-09-25 00:04:55,314 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:04:55,315 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:04:55,315 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:04:55,315 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:04:55,317 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:55" (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 00:04:55,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:04:55,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:04:55,398 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 00:04:55,398 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:04:55,398 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:04:55,399 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 00:04:55,399 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 00:04:55,399 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 00:04:55,399 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 00:04:55,399 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:04:55,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:04:55,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:04:56,371 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:04:56,372 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 00:04:56,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:04:56 BoogieIcfgContainer [2020-09-25 00:04:56,383 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:04:56,384 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:04:56,385 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:04:56,389 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:04:56,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:04:54" (1/3) ... [2020-09-25 00:04:56,391 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d2f161a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:04:56, skipping insertion in model container [2020-09-25 00:04:56,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:55" (2/3) ... [2020-09-25 00:04:56,391 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d2f161a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:04:56, skipping insertion in model container [2020-09-25 00:04:56,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:04:56" (3/3) ... [2020-09-25 00:04:56,394 INFO L109 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i.p+lhb-reducer.c [2020-09-25 00:04:56,407 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:04:56,419 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2020-09-25 00:04:56,443 INFO L251 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2020-09-25 00:04:56,480 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:04:56,480 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:04:56,480 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:04:56,481 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:04:56,481 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:04:56,481 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:04:56,481 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:04:56,481 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:04:56,535 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states. [2020-09-25 00:04:56,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-25 00:04:56,543 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:04:56,544 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] [2020-09-25 00:04:56,545 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:04:56,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:04:56,552 INFO L82 PathProgramCache]: Analyzing trace with hash 519309997, now seen corresponding path program 1 times [2020-09-25 00:04:56,562 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:04:56,562 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [385261877] [2020-09-25 00:04:56,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:04:56,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:04:56,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:04:56,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:04:57,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:04:57,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 00:04:57,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:04:57,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 489 [2020-09-25 00:04:57,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:04:57,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:04:57,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 00:04:57,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:04:57,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 00:04:57,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:04:57,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:04:57,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:04:57,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:04:57,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 00:04:57,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:04:57,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:04:57,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:04:57,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:04:57,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:04:57,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:04:57,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:04:57,352 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 00:04:57,353 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [385261877] [2020-09-25 00:04:57,355 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:04:57,356 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 00:04:57,357 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377336304] [2020-09-25 00:04:57,365 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 00:04:57,365 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:04:57,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 00:04:57,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 00:04:57,390 INFO L87 Difference]: Start difference. First operand 519 states. Second operand 8 states. [2020-09-25 00:04:59,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:04:59,547 INFO L93 Difference]: Finished difference Result 546 states and 624 transitions. [2020-09-25 00:04:59,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 00:04:59,550 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2020-09-25 00:04:59,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:04:59,573 INFO L225 Difference]: With dead ends: 546 [2020-09-25 00:04:59,573 INFO L226 Difference]: Without dead ends: 471 [2020-09-25 00:04:59,578 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2020-09-25 00:04:59,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2020-09-25 00:04:59,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 459. [2020-09-25 00:04:59,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 459 states. [2020-09-25 00:04:59,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 480 transitions. [2020-09-25 00:04:59,667 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 480 transitions. Word has length 25 [2020-09-25 00:04:59,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:04:59,668 INFO L479 AbstractCegarLoop]: Abstraction has 459 states and 480 transitions. [2020-09-25 00:04:59,668 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 00:04:59,668 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 480 transitions. [2020-09-25 00:04:59,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-25 00:04:59,669 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:04:59,670 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] [2020-09-25 00:04:59,670 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:04:59,670 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:04:59,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:04:59,671 INFO L82 PathProgramCache]: Analyzing trace with hash 775203426, now seen corresponding path program 1 times [2020-09-25 00:04:59,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:04:59,672 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [375711307] [2020-09-25 00:04:59,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:04:59,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:04:59,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:04:59,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:00,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:00,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 00:05:00,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:05:00,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 346 [2020-09-25 00:05:00,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:00,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:05:00,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 00:05:00,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 00:05:00,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:05:00,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:05:00,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:00,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:00,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:00,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 00:05:00,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:05:00,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:05:00,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:00,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:05:00,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:05:00,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:05:00,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:05:00,120 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 00:05:00,121 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [375711307] [2020-09-25 00:05:00,121 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:05:00,121 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 00:05:00,121 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727159028] [2020-09-25 00:05:00,123 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 00:05:00,124 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:05:00,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 00:05:00,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 00:05:00,125 INFO L87 Difference]: Start difference. First operand 459 states and 480 transitions. Second operand 8 states. [2020-09-25 00:05:01,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:05:01,801 INFO L93 Difference]: Finished difference Result 469 states and 490 transitions. [2020-09-25 00:05:01,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 00:05:01,803 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 30 [2020-09-25 00:05:01,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:05:01,807 INFO L225 Difference]: With dead ends: 469 [2020-09-25 00:05:01,808 INFO L226 Difference]: Without dead ends: 447 [2020-09-25 00:05:01,809 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2020-09-25 00:05:01,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2020-09-25 00:05:01,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 447. [2020-09-25 00:05:01,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 447 states. [2020-09-25 00:05:01,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 459 transitions. [2020-09-25 00:05:01,836 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 459 transitions. Word has length 30 [2020-09-25 00:05:01,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:05:01,836 INFO L479 AbstractCegarLoop]: Abstraction has 447 states and 459 transitions. [2020-09-25 00:05:01,837 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 00:05:01,837 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 459 transitions. [2020-09-25 00:05:01,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-09-25 00:05:01,838 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:05:01,839 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] [2020-09-25 00:05:01,839 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:05:01,839 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:05:01,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:05:01,840 INFO L82 PathProgramCache]: Analyzing trace with hash 1526563962, now seen corresponding path program 1 times [2020-09-25 00:05:01,840 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:05:01,840 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1725525384] [2020-09-25 00:05:01,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:05:01,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:01,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:01,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:02,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:02,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:02,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:03,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:03,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 00:05:03,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 00:05:03,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1877 [2020-09-25 00:05:03,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:03,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:05:03,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 00:05:03,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 00:05:03,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:05:03,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:05:03,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:03,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:03,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:03,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 00:05:03,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:05:03,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:05:03,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:03,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:05:03,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:05:03,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:05:03,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:05:03,825 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 00:05:03,825 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1725525384] [2020-09-25 00:05:03,826 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:05:03,826 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 00:05:03,826 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292530977] [2020-09-25 00:05:03,827 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 00:05:03,827 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:05:03,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 00:05:03,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 00:05:03,828 INFO L87 Difference]: Start difference. First operand 447 states and 459 transitions. Second operand 8 states. [2020-09-25 00:05:05,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:05:05,227 INFO L93 Difference]: Finished difference Result 447 states and 459 transitions. [2020-09-25 00:05:05,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 00:05:05,229 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 47 [2020-09-25 00:05:05,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:05:05,233 INFO L225 Difference]: With dead ends: 447 [2020-09-25 00:05:05,233 INFO L226 Difference]: Without dead ends: 445 [2020-09-25 00:05:05,235 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-09-25 00:05:05,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2020-09-25 00:05:05,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 445. [2020-09-25 00:05:05,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 445 states. [2020-09-25 00:05:05,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 457 transitions. [2020-09-25 00:05:05,281 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 457 transitions. Word has length 47 [2020-09-25 00:05:05,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:05:05,282 INFO L479 AbstractCegarLoop]: Abstraction has 445 states and 457 transitions. [2020-09-25 00:05:05,282 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 00:05:05,282 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 457 transitions. [2020-09-25 00:05:05,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-25 00:05:05,286 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:05:05,286 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] [2020-09-25 00:05:05,289 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 00:05:05,290 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:05:05,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:05:05,290 INFO L82 PathProgramCache]: Analyzing trace with hash -344421966, now seen corresponding path program 1 times [2020-09-25 00:05:05,291 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:05:05,292 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [230471721] [2020-09-25 00:05:05,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:05:05,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:05,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:05,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:05,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:06,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:06,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-09-25 00:05:06,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:05:06,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 965 [2020-09-25 00:05:06,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:06,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 00:05:06,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 00:05:06,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 00:05:06,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:05:06,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:05:06,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:06,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:06,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:06,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 00:05:06,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:05:06,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:05:06,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:06,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:05:06,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:05:06,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:05:06,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 00:05:06,400 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 00:05:06,402 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [230471721] [2020-09-25 00:05:06,403 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:05:06,403 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 00:05:06,403 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749254025] [2020-09-25 00:05:06,404 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 00:05:06,404 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:05:06,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 00:05:06,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 00:05:06,405 INFO L87 Difference]: Start difference. First operand 445 states and 457 transitions. Second operand 8 states. [2020-09-25 00:05:07,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:05:07,607 INFO L93 Difference]: Finished difference Result 445 states and 457 transitions. [2020-09-25 00:05:07,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 00:05:07,608 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 52 [2020-09-25 00:05:07,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:05:07,614 INFO L225 Difference]: With dead ends: 445 [2020-09-25 00:05:07,614 INFO L226 Difference]: Without dead ends: 433 [2020-09-25 00:05:07,617 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2020-09-25 00:05:07,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2020-09-25 00:05:07,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 433. [2020-09-25 00:05:07,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 433 states. [2020-09-25 00:05:07,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 445 transitions. [2020-09-25 00:05:07,634 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 445 transitions. Word has length 52 [2020-09-25 00:05:07,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:05:07,636 INFO L479 AbstractCegarLoop]: Abstraction has 433 states and 445 transitions. [2020-09-25 00:05:07,636 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 00:05:07,636 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 445 transitions. [2020-09-25 00:05:07,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-25 00:05:07,644 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:05:07,644 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] [2020-09-25 00:05:07,644 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 00:05:07,645 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:05:07,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:05:07,648 INFO L82 PathProgramCache]: Analyzing trace with hash 784264785, now seen corresponding path program 1 times [2020-09-25 00:05:07,648 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:05:07,649 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [467217497] [2020-09-25 00:05:07,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:05:07,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:07,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:07,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:08,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:08,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-25 00:05:08,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:05:08,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 474 [2020-09-25 00:05:08,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:08,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:05:08,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 00:05:08,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 00:05:08,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:05:08,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:05:08,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:08,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:08,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:08,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 00:05:08,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:05:08,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:05:08,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:08,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:05:08,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:05:08,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:05:08,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:05:08,234 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 00:05:08,235 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [467217497] [2020-09-25 00:05:08,235 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:05:08,235 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 00:05:08,236 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642317233] [2020-09-25 00:05:08,236 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 00:05:08,236 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:05:08,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 00:05:08,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 00:05:08,237 INFO L87 Difference]: Start difference. First operand 433 states and 445 transitions. Second operand 7 states. [2020-09-25 00:05:09,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:05:09,511 INFO L93 Difference]: Finished difference Result 499 states and 513 transitions. [2020-09-25 00:05:09,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 00:05:09,511 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2020-09-25 00:05:09,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:05:09,515 INFO L225 Difference]: With dead ends: 499 [2020-09-25 00:05:09,515 INFO L226 Difference]: Without dead ends: 497 [2020-09-25 00:05:09,516 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-25 00:05:09,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2020-09-25 00:05:09,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 431. [2020-09-25 00:05:09,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 431 states. [2020-09-25 00:05:09,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 443 transitions. [2020-09-25 00:05:09,529 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 443 transitions. Word has length 57 [2020-09-25 00:05:09,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:05:09,530 INFO L479 AbstractCegarLoop]: Abstraction has 431 states and 443 transitions. [2020-09-25 00:05:09,530 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 00:05:09,530 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 443 transitions. [2020-09-25 00:05:09,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-25 00:05:09,531 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:05:09,531 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] [2020-09-25 00:05:09,532 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 00:05:09,532 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:05:09,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:05:09,533 INFO L82 PathProgramCache]: Analyzing trace with hash 2053600793, now seen corresponding path program 1 times [2020-09-25 00:05:09,533 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:05:09,533 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [53566994] [2020-09-25 00:05:09,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:05:09,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:09,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:09,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:09,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:09,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-25 00:05:09,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:05:09,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 387 [2020-09-25 00:05:09,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:09,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:05:09,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 00:05:09,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 00:05:09,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:05:09,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:05:09,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:09,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:10,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:10,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 00:05:10,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:05:10,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:05:10,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:10,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:05:10,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:05:10,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:05:10,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:05:10,011 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 00:05:10,011 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [53566994] [2020-09-25 00:05:10,012 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:05:10,012 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 00:05:10,016 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292127071] [2020-09-25 00:05:10,017 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 00:05:10,017 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:05:10,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 00:05:10,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 00:05:10,018 INFO L87 Difference]: Start difference. First operand 431 states and 443 transitions. Second operand 7 states. [2020-09-25 00:05:11,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:05:11,154 INFO L93 Difference]: Finished difference Result 431 states and 443 transitions. [2020-09-25 00:05:11,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 00:05:11,154 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2020-09-25 00:05:11,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:05:11,159 INFO L225 Difference]: With dead ends: 431 [2020-09-25 00:05:11,159 INFO L226 Difference]: Without dead ends: 429 [2020-09-25 00:05:11,160 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-25 00:05:11,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2020-09-25 00:05:11,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 429. [2020-09-25 00:05:11,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 429 states. [2020-09-25 00:05:11,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 441 transitions. [2020-09-25 00:05:11,170 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 441 transitions. Word has length 57 [2020-09-25 00:05:11,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:05:11,170 INFO L479 AbstractCegarLoop]: Abstraction has 429 states and 441 transitions. [2020-09-25 00:05:11,171 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 00:05:11,171 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 441 transitions. [2020-09-25 00:05:11,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-25 00:05:11,172 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:05:11,172 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] [2020-09-25 00:05:11,172 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 00:05:11,172 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:05:11,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:05:11,173 INFO L82 PathProgramCache]: Analyzing trace with hash 1921870681, now seen corresponding path program 1 times [2020-09-25 00:05:11,173 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:05:11,173 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1181327834] [2020-09-25 00:05:11,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:05:11,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:11,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:11,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:11,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:11,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-25 00:05:11,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:05:11,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 370 [2020-09-25 00:05:11,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:11,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:05:11,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 00:05:11,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 00:05:11,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:05:11,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:05:11,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:11,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:11,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:11,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 00:05:11,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:05:11,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:05:11,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:11,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:05:11,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:05:11,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:05:11,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:05:11,629 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 00:05:11,629 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1181327834] [2020-09-25 00:05:11,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:05:11,630 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 00:05:11,630 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536184799] [2020-09-25 00:05:11,630 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 00:05:11,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:05:11,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 00:05:11,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 00:05:11,631 INFO L87 Difference]: Start difference. First operand 429 states and 441 transitions. Second operand 7 states. [2020-09-25 00:05:12,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:05:12,948 INFO L93 Difference]: Finished difference Result 478 states and 492 transitions. [2020-09-25 00:05:12,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 00:05:12,949 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2020-09-25 00:05:12,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:05:12,952 INFO L225 Difference]: With dead ends: 478 [2020-09-25 00:05:12,953 INFO L226 Difference]: Without dead ends: 476 [2020-09-25 00:05:12,954 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-25 00:05:12,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2020-09-25 00:05:12,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 427. [2020-09-25 00:05:12,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 427 states. [2020-09-25 00:05:12,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 439 transitions. [2020-09-25 00:05:12,965 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 439 transitions. Word has length 57 [2020-09-25 00:05:12,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:05:12,966 INFO L479 AbstractCegarLoop]: Abstraction has 427 states and 439 transitions. [2020-09-25 00:05:12,966 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 00:05:12,966 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 439 transitions. [2020-09-25 00:05:12,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-09-25 00:05:12,967 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:05:12,967 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] [2020-09-25 00:05:12,967 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 00:05:12,968 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:05:12,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:05:12,968 INFO L82 PathProgramCache]: Analyzing trace with hash -382650347, now seen corresponding path program 1 times [2020-09-25 00:05:12,968 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:05:12,969 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1056656142] [2020-09-25 00:05:12,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:05:12,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:12,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:13,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:13,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:13,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-25 00:05:13,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:05:13,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1016 [2020-09-25 00:05:13,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:13,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 00:05:13,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 00:05:13,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 00:05:14,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:05:14,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:05:14,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:14,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:14,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:14,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 00:05:14,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:05:14,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:05:14,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:14,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:05:14,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:05:14,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:05:14,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:05:14,166 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 00:05:14,166 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1056656142] [2020-09-25 00:05:14,167 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:05:14,167 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 00:05:14,167 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86517237] [2020-09-25 00:05:14,168 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 00:05:14,168 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:05:14,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 00:05:14,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 00:05:14,169 INFO L87 Difference]: Start difference. First operand 427 states and 439 transitions. Second operand 8 states. [2020-09-25 00:05:15,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:05:15,680 INFO L93 Difference]: Finished difference Result 494 states and 508 transitions. [2020-09-25 00:05:15,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 00:05:15,681 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 62 [2020-09-25 00:05:15,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:05:15,686 INFO L225 Difference]: With dead ends: 494 [2020-09-25 00:05:15,686 INFO L226 Difference]: Without dead ends: 492 [2020-09-25 00:05:15,687 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2020-09-25 00:05:15,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2020-09-25 00:05:15,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 425. [2020-09-25 00:05:15,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 425 states. [2020-09-25 00:05:15,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 437 transitions. [2020-09-25 00:05:15,701 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 437 transitions. Word has length 62 [2020-09-25 00:05:15,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:05:15,701 INFO L479 AbstractCegarLoop]: Abstraction has 425 states and 437 transitions. [2020-09-25 00:05:15,701 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 00:05:15,702 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 437 transitions. [2020-09-25 00:05:15,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-09-25 00:05:15,702 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:05:15,702 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] [2020-09-25 00:05:15,703 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 00:05:15,703 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:05:15,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:05:15,703 INFO L82 PathProgramCache]: Analyzing trace with hash 1546196018, now seen corresponding path program 1 times [2020-09-25 00:05:15,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:05:15,704 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [62281800] [2020-09-25 00:05:15,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:05:15,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:15,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:15,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:16,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:16,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-25 00:05:16,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:05:16,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1058 [2020-09-25 00:05:16,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:16,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 00:05:16,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 00:05:16,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 00:05:16,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:05:16,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:05:16,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:16,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:16,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:16,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 00:05:16,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:05:16,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:05:16,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:16,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:05:16,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:05:16,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:05:16,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:05:16,921 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 00:05:16,926 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [62281800] [2020-09-25 00:05:16,928 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:05:16,928 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 00:05:16,928 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248605417] [2020-09-25 00:05:16,929 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 00:05:16,930 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:05:16,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 00:05:16,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 00:05:16,930 INFO L87 Difference]: Start difference. First operand 425 states and 437 transitions. Second operand 8 states. [2020-09-25 00:05:18,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:05:18,215 INFO L93 Difference]: Finished difference Result 425 states and 437 transitions. [2020-09-25 00:05:18,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 00:05:18,216 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 62 [2020-09-25 00:05:18,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:05:18,219 INFO L225 Difference]: With dead ends: 425 [2020-09-25 00:05:18,220 INFO L226 Difference]: Without dead ends: 413 [2020-09-25 00:05:18,221 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2020-09-25 00:05:18,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2020-09-25 00:05:18,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 413. [2020-09-25 00:05:18,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 413 states. [2020-09-25 00:05:18,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 425 transitions. [2020-09-25 00:05:18,236 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 425 transitions. Word has length 62 [2020-09-25 00:05:18,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:05:18,236 INFO L479 AbstractCegarLoop]: Abstraction has 413 states and 425 transitions. [2020-09-25 00:05:18,237 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 00:05:18,237 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 425 transitions. [2020-09-25 00:05:18,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-09-25 00:05:18,238 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:05:18,238 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] [2020-09-25 00:05:18,238 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 00:05:18,239 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:05:18,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:05:18,239 INFO L82 PathProgramCache]: Analyzing trace with hash 781872345, now seen corresponding path program 1 times [2020-09-25 00:05:18,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:05:18,240 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1140617747] [2020-09-25 00:05:18,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:05:18,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:18,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:18,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:19,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:19,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-25 00:05:19,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:05:19,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1047 [2020-09-25 00:05:19,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:19,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 00:05:19,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 00:05:19,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 00:05:19,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:05:19,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:05:19,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:19,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:19,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:19,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 00:05:19,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:05:19,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:05:19,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:19,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:05:19,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:05:19,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:05:19,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:05:19,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:05:19,445 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1140617747] [2020-09-25 00:05:19,445 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:05:19,445 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 00:05:19,445 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683613222] [2020-09-25 00:05:19,446 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 00:05:19,446 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:05:19,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 00:05:19,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 00:05:19,447 INFO L87 Difference]: Start difference. First operand 413 states and 425 transitions. Second operand 8 states. [2020-09-25 00:05:20,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:05:20,935 INFO L93 Difference]: Finished difference Result 453 states and 467 transitions. [2020-09-25 00:05:20,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 00:05:20,936 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 62 [2020-09-25 00:05:20,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:05:20,939 INFO L225 Difference]: With dead ends: 453 [2020-09-25 00:05:20,939 INFO L226 Difference]: Without dead ends: 451 [2020-09-25 00:05:20,940 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2020-09-25 00:05:20,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2020-09-25 00:05:20,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 411. [2020-09-25 00:05:20,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 411 states. [2020-09-25 00:05:20,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 423 transitions. [2020-09-25 00:05:20,951 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 423 transitions. Word has length 62 [2020-09-25 00:05:20,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:05:20,951 INFO L479 AbstractCegarLoop]: Abstraction has 411 states and 423 transitions. [2020-09-25 00:05:20,951 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 00:05:20,951 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 423 transitions. [2020-09-25 00:05:20,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-09-25 00:05:20,952 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:05:20,952 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] [2020-09-25 00:05:20,952 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 00:05:20,953 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:05:20,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:05:20,953 INFO L82 PathProgramCache]: Analyzing trace with hash 1199808863, now seen corresponding path program 1 times [2020-09-25 00:05:20,953 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:05:20,954 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [998524631] [2020-09-25 00:05:20,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:05:20,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:20,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:21,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:21,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:21,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:21,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:21,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:22,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:22,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:22,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:23,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:25,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:25,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-25 00:05:25,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 00:05:25,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-25 00:05:25,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:25,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:05:25,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 00:05:25,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 00:05:25,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:05:26,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:05:26,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:26,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:26,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:26,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 00:05:26,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:05:26,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:05:26,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:26,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:05:26,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:05:26,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:05:26,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:05:26,066 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 00:05:26,067 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [998524631] [2020-09-25 00:05:26,067 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:05:26,067 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 00:05:26,067 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327210611] [2020-09-25 00:05:26,068 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 00:05:26,068 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:05:26,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 00:05:26,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 00:05:26,069 INFO L87 Difference]: Start difference. First operand 411 states and 423 transitions. Second operand 8 states. [2020-09-25 00:05:27,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:05:27,403 INFO L93 Difference]: Finished difference Result 411 states and 423 transitions. [2020-09-25 00:05:27,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 00:05:27,403 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 70 [2020-09-25 00:05:27,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:05:27,405 INFO L225 Difference]: With dead ends: 411 [2020-09-25 00:05:27,405 INFO L226 Difference]: Without dead ends: 409 [2020-09-25 00:05:27,406 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-09-25 00:05:27,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2020-09-25 00:05:27,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 409. [2020-09-25 00:05:27,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 409 states. [2020-09-25 00:05:27,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 421 transitions. [2020-09-25 00:05:27,416 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 421 transitions. Word has length 70 [2020-09-25 00:05:27,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:05:27,416 INFO L479 AbstractCegarLoop]: Abstraction has 409 states and 421 transitions. [2020-09-25 00:05:27,416 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 00:05:27,417 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 421 transitions. [2020-09-25 00:05:27,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-09-25 00:05:27,417 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:05:27,417 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 00:05:27,418 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 00:05:27,418 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:05:27,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:05:27,418 INFO L82 PathProgramCache]: Analyzing trace with hash 886846446, now seen corresponding path program 1 times [2020-09-25 00:05:27,419 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:05:27,419 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [734091067] [2020-09-25 00:05:27,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:05:27,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:27,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:27,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:27,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:28,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:30,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:30,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-25 00:05:30,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:05:30,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3406 [2020-09-25 00:05:30,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:30,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 00:05:30,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 00:05:30,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-09-25 00:05:30,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:05:30,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:05:30,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:30,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:30,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:30,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 00:05:30,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:05:30,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:05:30,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:30,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:05:30,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:05:30,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:05:30,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:05:30,970 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 00:05:30,970 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [734091067] [2020-09-25 00:05:30,970 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:05:30,970 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 00:05:30,971 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834755193] [2020-09-25 00:05:30,971 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 00:05:30,971 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:05:30,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 00:05:30,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 00:05:30,972 INFO L87 Difference]: Start difference. First operand 409 states and 421 transitions. Second operand 8 states. [2020-09-25 00:05:32,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:05:32,397 INFO L93 Difference]: Finished difference Result 409 states and 421 transitions. [2020-09-25 00:05:32,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 00:05:32,398 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 75 [2020-09-25 00:05:32,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:05:32,399 INFO L225 Difference]: With dead ends: 409 [2020-09-25 00:05:32,400 INFO L226 Difference]: Without dead ends: 222 [2020-09-25 00:05:32,401 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2020-09-25 00:05:32,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2020-09-25 00:05:32,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222. [2020-09-25 00:05:32,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2020-09-25 00:05:32,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 222 transitions. [2020-09-25 00:05:32,407 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 222 transitions. Word has length 75 [2020-09-25 00:05:32,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:05:32,407 INFO L479 AbstractCegarLoop]: Abstraction has 222 states and 222 transitions. [2020-09-25 00:05:32,407 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 00:05:32,407 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 222 transitions. [2020-09-25 00:05:32,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-09-25 00:05:32,409 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:05:32,409 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:05:32,409 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 00:05:32,410 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:05:32,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:05:32,410 INFO L82 PathProgramCache]: Analyzing trace with hash -778836105, now seen corresponding path program 1 times [2020-09-25 00:05:32,410 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:05:32,411 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1125035760] [2020-09-25 00:05:32,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:05:32,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:32,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:32,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:32,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:33,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:33,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:33,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:33,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:37,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:37,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 203 [2020-09-25 00:05:37,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 00:05:37,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-25 00:05:37,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:37,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 00:05:37,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 00:05:37,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 179 [2020-09-25 00:05:37,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:05:37,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:05:37,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:37,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:37,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:37,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 00:05:37,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:05:37,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:05:37,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:37,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:05:37,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:05:37,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:05:37,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:05:37,748 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 00:05:37,749 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1125035760] [2020-09-25 00:05:37,749 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:05:37,750 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-09-25 00:05:37,750 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240541930] [2020-09-25 00:05:37,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 00:05:37,751 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:05:37,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 00:05:37,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-09-25 00:05:37,753 INFO L87 Difference]: Start difference. First operand 222 states and 222 transitions. Second operand 15 states. [2020-09-25 00:05:38,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:05:38,803 INFO L93 Difference]: Finished difference Result 247 states and 247 transitions. [2020-09-25 00:05:38,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 00:05:38,804 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 196 [2020-09-25 00:05:38,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:05:38,806 INFO L225 Difference]: With dead ends: 247 [2020-09-25 00:05:38,806 INFO L226 Difference]: Without dead ends: 245 [2020-09-25 00:05:38,807 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=244, Invalid=512, Unknown=0, NotChecked=0, Total=756 [2020-09-25 00:05:38,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2020-09-25 00:05:38,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 220. [2020-09-25 00:05:38,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-09-25 00:05:38,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 220 transitions. [2020-09-25 00:05:38,813 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 220 transitions. Word has length 196 [2020-09-25 00:05:38,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:05:38,814 INFO L479 AbstractCegarLoop]: Abstraction has 220 states and 220 transitions. [2020-09-25 00:05:38,814 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 00:05:38,814 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 220 transitions. [2020-09-25 00:05:38,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-09-25 00:05:38,816 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:05:38,816 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:05:38,817 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 00:05:38,817 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:05:38,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:05:38,817 INFO L82 PathProgramCache]: Analyzing trace with hash -687472165, now seen corresponding path program 1 times [2020-09-25 00:05:38,818 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:05:38,818 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [954348534] [2020-09-25 00:05:38,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:05:38,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:38,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:38,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:39,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:39,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:39,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:39,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:39,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:43,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:43,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 203 [2020-09-25 00:05:43,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 00:05:43,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-25 00:05:43,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:43,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 00:05:43,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 00:05:43,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 179 [2020-09-25 00:05:43,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:05:44,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:05:44,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:44,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:44,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:44,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 00:05:44,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:05:44,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:05:44,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:44,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:05:44,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:05:44,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:05:44,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:05:44,099 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 00:05:44,099 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [954348534] [2020-09-25 00:05:44,100 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:05:44,100 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-09-25 00:05:44,100 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035331537] [2020-09-25 00:05:44,101 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 00:05:44,101 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:05:44,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 00:05:44,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-09-25 00:05:44,102 INFO L87 Difference]: Start difference. First operand 220 states and 220 transitions. Second operand 15 states.