/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label59.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 00:36:44,985 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 00:36:44,988 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 00:36:45,024 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 00:36:45,025 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 00:36:45,026 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 00:36:45,028 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 00:36:45,031 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 00:36:45,033 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 00:36:45,035 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 00:36:45,036 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 00:36:45,038 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 00:36:45,038 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 00:36:45,040 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 00:36:45,041 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 00:36:45,043 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 00:36:45,044 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 00:36:45,046 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 00:36:45,074 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 00:36:45,078 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 00:36:45,082 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 00:36:45,085 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 00:36:45,087 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 00:36:45,091 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 00:36:45,104 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 00:36:45,104 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 00:36:45,105 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 00:36:45,108 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 00:36:45,109 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 00:36:45,110 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 00:36:45,110 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 00:36:45,111 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 00:36:45,112 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 00:36:45,114 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 00:36:45,116 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 00:36:45,116 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 00:36:45,117 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 00:36:45,118 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 00:36:45,118 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 00:36:45,119 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 00:36:45,120 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 00:36:45,121 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-27 00:36:45,186 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 00:36:45,186 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 00:36:45,191 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 00:36:45,192 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 00:36:45,192 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 00:36:45,193 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 00:36:45,194 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 00:36:45,194 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 00:36:45,194 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 00:36:45,194 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 00:36:45,196 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 00:36:45,196 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 00:36:45,196 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 00:36:45,197 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 00:36:45,197 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 00:36:45,197 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 00:36:45,197 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 00:36:45,198 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 00:36:45,198 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 00:36:45,199 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 00:36:45,199 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 00:36:45,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 00:36:45,199 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 00:36:45,200 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 00:36:45,200 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 00:36:45,200 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 00:36:45,201 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 00:36:45,201 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 00:36:45,201 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 00:36:45,201 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 00:36:45,651 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 00:36:45,678 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 00:36:45,681 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 00:36:45,682 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 00:36:45,683 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 00:36:45,684 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label59.c [2020-10-27 00:36:45,780 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2118e6f16/0f000cc5f4b14bbdbad0006eb03ef700/FLAG86b2a2449 [2020-10-27 00:36:46,749 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 00:36:46,749 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem18_label59.c [2020-10-27 00:36:46,790 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2118e6f16/0f000cc5f4b14bbdbad0006eb03ef700/FLAG86b2a2449 [2020-10-27 00:36:47,281 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2118e6f16/0f000cc5f4b14bbdbad0006eb03ef700 [2020-10-27 00:36:47,285 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 00:36:47,292 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 00:36:47,295 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 00:36:47,295 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 00:36:47,299 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 00:36:47,300 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:36:47" (1/1) ... [2020-10-27 00:36:47,304 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b5540fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:36:47, skipping insertion in model container [2020-10-27 00:36:47,304 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:36:47" (1/1) ... [2020-10-27 00:36:47,313 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 00:36:47,423 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 00:36:48,592 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 00:36:48,603 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 00:36:49,207 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 00:36:49,239 INFO L208 MainTranslator]: Completed translation [2020-10-27 00:36:49,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:36:49 WrapperNode [2020-10-27 00:36:49,241 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 00:36:49,243 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 00:36:49,243 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 00:36:49,243 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 00:36:49,259 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:36:49" (1/1) ... [2020-10-27 00:36:49,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:36:49" (1/1) ... [2020-10-27 00:36:49,332 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:36:49" (1/1) ... [2020-10-27 00:36:49,333 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:36:49" (1/1) ... [2020-10-27 00:36:49,517 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:36:49" (1/1) ... [2020-10-27 00:36:49,553 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:36:49" (1/1) ... [2020-10-27 00:36:49,589 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:36:49" (1/1) ... [2020-10-27 00:36:49,621 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 00:36:49,622 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 00:36:49,623 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 00:36:49,623 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 00:36:49,624 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:36:49" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 00:36:49,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 00:36:49,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 00:36:49,710 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 00:36:49,710 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-27 00:36:49,710 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-27 00:36:49,711 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-27 00:36:49,711 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 00:36:49,711 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-27 00:36:49,711 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-27 00:36:49,711 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-27 00:36:49,712 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 00:36:49,712 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 00:36:49,712 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 00:36:49,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 00:36:49,712 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 00:36:49,713 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-27 00:36:49,713 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 00:36:49,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 00:36:49,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 00:36:49,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 00:36:49,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 00:36:49,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 00:36:49,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 00:36:55,476 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 00:36:55,477 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 00:36:55,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:36:55 BoogieIcfgContainer [2020-10-27 00:36:55,481 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 00:36:55,486 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 00:36:55,486 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 00:36:55,490 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 00:36:55,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 12:36:47" (1/3) ... [2020-10-27 00:36:55,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2286b492 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:36:55, skipping insertion in model container [2020-10-27 00:36:55,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:36:49" (2/3) ... [2020-10-27 00:36:55,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2286b492 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:36:55, skipping insertion in model container [2020-10-27 00:36:55,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:36:55" (3/3) ... [2020-10-27 00:36:55,494 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem18_label59.c [2020-10-27 00:36:55,511 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 00:36:55,517 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 00:36:55,532 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 00:36:55,579 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 00:36:55,579 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 00:36:55,579 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 00:36:55,579 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 00:36:55,579 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 00:36:55,580 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 00:36:55,580 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 00:36:55,580 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 00:36:55,626 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states. [2020-10-27 00:36:55,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-27 00:36:55,634 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 00:36:55,635 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] [2020-10-27 00:36:55,636 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 00:36:55,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 00:36:55,642 INFO L82 PathProgramCache]: Analyzing trace with hash 2060439608, now seen corresponding path program 1 times [2020-10-27 00:36:55,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 00:36:55,652 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [856818752] [2020-10-27 00:36:55,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 00:36:55,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:36:55,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:36:56,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:36:56,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-27 00:36:56,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:36:56,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 510 [2020-10-27 00:36:56,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:36:56,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 00:36:56,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 00:36:56,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-27 00:36:56,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-27 00:36:56,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 00:36:56,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:36:56,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:36:56,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:36:56,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 00:36:56,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:36:56,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-27 00:36:56,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:36:56,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 00:36:56,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:36:56,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 00:36:56,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:36:56,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 00:36:56,691 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [856818752] [2020-10-27 00:36:56,693 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 00:36:56,694 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 00:36:56,694 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202281687] [2020-10-27 00:36:56,700 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 00:36:56,700 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 00:36:56,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 00:36:56,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 00:36:56,718 INFO L87 Difference]: Start difference. First operand 778 states. Second operand 5 states. [2020-10-27 00:36:56,872 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-27 00:37:09,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 00:37:09,730 INFO L93 Difference]: Finished difference Result 2275 states and 4355 transitions. [2020-10-27 00:37:09,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 00:37:09,734 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2020-10-27 00:37:09,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 00:37:09,773 INFO L225 Difference]: With dead ends: 2275 [2020-10-27 00:37:09,773 INFO L226 Difference]: Without dead ends: 1433 [2020-10-27 00:37:09,786 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 00:37:09,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1433 states. [2020-10-27 00:37:09,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1433 to 1426. [2020-10-27 00:37:09,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1426 states. [2020-10-27 00:37:09,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 2644 transitions. [2020-10-27 00:37:09,960 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 2644 transitions. Word has length 44 [2020-10-27 00:37:09,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 00:37:09,963 INFO L481 AbstractCegarLoop]: Abstraction has 1426 states and 2644 transitions. [2020-10-27 00:37:09,963 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 00:37:09,963 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 2644 transitions. [2020-10-27 00:37:09,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-27 00:37:09,972 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 00:37:09,972 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 00:37:09,973 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 00:37:09,973 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 00:37:09,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 00:37:09,974 INFO L82 PathProgramCache]: Analyzing trace with hash -1194515946, now seen corresponding path program 1 times [2020-10-27 00:37:09,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 00:37:09,975 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [748282381] [2020-10-27 00:37:09,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 00:37:10,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:37:10,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:37:10,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:37:11,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:37:11,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-27 00:37:11,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 00:37:11,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1144 [2020-10-27 00:37:11,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:37:11,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 00:37:11,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 00:37:11,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-27 00:37:11,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 00:37:11,406 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-27 00:37:11,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 00:37:11,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:37:11,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:37:11,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:37:11,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 00:37:11,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:37:11,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-27 00:37:11,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:37:11,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 00:37:11,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:37:11,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 00:37:11,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 00:37:11,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 00:37:11,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:37:11,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:37:11,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:37:11,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-27 00:37:11,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:37:11,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-27 00:37:11,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:37:11,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 00:37:11,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 00:37:11,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-27 00:37:11,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:37:11,846 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 00:37:11,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [748282381] [2020-10-27 00:37:11,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 00:37:11,848 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 00:37:11,848 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101538272] [2020-10-27 00:37:11,850 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 00:37:11,852 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 00:37:11,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 00:37:11,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-27 00:37:11,854 INFO L87 Difference]: Start difference. First operand 1426 states and 2644 transitions. Second operand 8 states. [2020-10-27 00:37:12,017 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-27 00:37:12,675 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-27 00:37:21,847 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-27 00:37:35,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 00:37:35,656 INFO L93 Difference]: Finished difference Result 5774 states and 10807 transitions. [2020-10-27 00:37:35,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 00:37:35,659 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 113 [2020-10-27 00:37:35,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 00:37:35,695 INFO L225 Difference]: With dead ends: 5774 [2020-10-27 00:37:35,696 INFO L226 Difference]: Without dead ends: 4354 [2020-10-27 00:37:35,702 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-27 00:37:35,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4354 states. [2020-10-27 00:37:35,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4354 to 4332. [2020-10-27 00:37:35,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4332 states. [2020-10-27 00:37:35,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4332 states to 4332 states and 6683 transitions. [2020-10-27 00:37:35,906 INFO L78 Accepts]: Start accepts. Automaton has 4332 states and 6683 transitions. Word has length 113 [2020-10-27 00:37:35,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 00:37:35,908 INFO L481 AbstractCegarLoop]: Abstraction has 4332 states and 6683 transitions. [2020-10-27 00:37:35,908 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 00:37:35,908 INFO L276 IsEmpty]: Start isEmpty. Operand 4332 states and 6683 transitions. [2020-10-27 00:37:35,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-27 00:37:35,912 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 00:37:35,913 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 00:37:35,913 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 00:37:35,913 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 00:37:35,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 00:37:35,914 INFO L82 PathProgramCache]: Analyzing trace with hash -1159339876, now seen corresponding path program 1 times [2020-10-27 00:37:35,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 00:37:35,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [741718762] [2020-10-27 00:37:35,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 00:37:35,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:37:35,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:37:36,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:37:36,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:37:36,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-27 00:37:36,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 00:37:36,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 702 [2020-10-27 00:37:36,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:37:36,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 00:37:36,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 00:37:36,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-27 00:37:36,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:37:36,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 00:37:36,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:37:36,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:37:36,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:37:36,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 00:37:36,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:37:36,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 00:37:36,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:37:36,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 00:37:36,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:37:36,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 00:37:36,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:37:36,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 00:37:36,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:37:36,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:37:37,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:37:37,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 00:37:37,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:37:37,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-27 00:37:37,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:37:37,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 00:37:37,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 00:37:37,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-27 00:37:37,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:37:37,091 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 00:37:37,091 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [741718762] [2020-10-27 00:37:37,091 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 00:37:37,092 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 00:37:37,092 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541072307] [2020-10-27 00:37:37,094 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 00:37:37,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 00:37:37,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 00:37:37,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 00:37:37,096 INFO L87 Difference]: Start difference. First operand 4332 states and 6683 transitions. Second operand 7 states. [2020-10-27 00:37:37,238 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-27 00:37:55,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 00:37:55,695 INFO L93 Difference]: Finished difference Result 13139 states and 20687 transitions. [2020-10-27 00:37:55,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 00:37:55,696 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 116 [2020-10-27 00:37:55,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 00:37:55,746 INFO L225 Difference]: With dead ends: 13139 [2020-10-27 00:37:55,746 INFO L226 Difference]: Without dead ends: 8813 [2020-10-27 00:37:55,759 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-27 00:37:55,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8813 states. [2020-10-27 00:37:56,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8813 to 8736. [2020-10-27 00:37:56,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8736 states. [2020-10-27 00:37:56,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8736 states to 8736 states and 12166 transitions. [2020-10-27 00:37:56,108 INFO L78 Accepts]: Start accepts. Automaton has 8736 states and 12166 transitions. Word has length 116 [2020-10-27 00:37:56,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 00:37:56,109 INFO L481 AbstractCegarLoop]: Abstraction has 8736 states and 12166 transitions. [2020-10-27 00:37:56,109 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 00:37:56,109 INFO L276 IsEmpty]: Start isEmpty. Operand 8736 states and 12166 transitions. [2020-10-27 00:37:56,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-10-27 00:37:56,112 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 00:37:56,113 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 00:37:56,113 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 00:37:56,113 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 00:37:56,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 00:37:56,114 INFO L82 PathProgramCache]: Analyzing trace with hash -411155874, now seen corresponding path program 1 times [2020-10-27 00:37:56,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 00:37:56,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1337016002] [2020-10-27 00:37:56,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 00:37:56,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:37:56,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:37:56,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:37:57,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:37:57,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-27 00:37:57,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 00:37:57,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1005 [2020-10-27 00:37:57,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:37:57,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 00:37:57,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 00:37:57,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-27 00:37:57,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:37:57,417 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-27 00:37:57,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 00:37:57,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:37:57,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:37:57,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:37:57,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 00:37:57,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:37:57,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-27 00:37:57,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:37:57,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 00:37:57,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:37:57,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 00:37:57,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:37:57,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 00:37:57,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:37:57,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:37:57,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:37:57,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-27 00:37:57,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:37:57,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 192 [2020-10-27 00:37:57,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:37:57,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 00:37:57,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 00:37:57,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-27 00:37:57,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:37:57,981 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 00:37:57,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1337016002] [2020-10-27 00:37:57,982 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 00:37:57,982 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 00:37:57,983 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144644028] [2020-10-27 00:37:57,984 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 00:37:57,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 00:37:57,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 00:37:57,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-27 00:37:57,992 INFO L87 Difference]: Start difference. First operand 8736 states and 12166 transitions. Second operand 7 states. [2020-10-27 00:37:58,153 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-10-27 00:37:59,907 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-10-27 00:38:18,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 00:38:18,175 INFO L93 Difference]: Finished difference Result 21913 states and 30939 transitions. [2020-10-27 00:38:18,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 00:38:18,176 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 141 [2020-10-27 00:38:18,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 00:38:18,248 INFO L225 Difference]: With dead ends: 21913 [2020-10-27 00:38:18,249 INFO L226 Difference]: Without dead ends: 13183 [2020-10-27 00:38:18,273 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-27 00:38:18,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13183 states. [2020-10-27 00:38:18,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13183 to 12458. [2020-10-27 00:38:18,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12458 states. [2020-10-27 00:38:18,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12458 states to 12458 states and 16671 transitions. [2020-10-27 00:38:18,691 INFO L78 Accepts]: Start accepts. Automaton has 12458 states and 16671 transitions. Word has length 141 [2020-10-27 00:38:18,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 00:38:18,693 INFO L481 AbstractCegarLoop]: Abstraction has 12458 states and 16671 transitions. [2020-10-27 00:38:18,693 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 00:38:18,693 INFO L276 IsEmpty]: Start isEmpty. Operand 12458 states and 16671 transitions. [2020-10-27 00:38:18,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-10-27 00:38:18,698 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 00:38:18,699 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 00:38:18,699 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 00:38:18,699 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 00:38:18,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 00:38:18,700 INFO L82 PathProgramCache]: Analyzing trace with hash 778955896, now seen corresponding path program 1 times [2020-10-27 00:38:18,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 00:38:18,701 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [257350064] [2020-10-27 00:38:18,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 00:38:18,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:38:18,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:38:19,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:38:19,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-10-27 00:38:19,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:38:19,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 424 [2020-10-27 00:38:19,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:38:19,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 00:38:19,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-27 00:38:19,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-27 00:38:19,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:38:19,366 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-27 00:38:19,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 00:38:19,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:38:19,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:38:19,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:38:19,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 00:38:19,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:38:19,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 00:38:19,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:38:19,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:38:19,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:38:19,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:38:19,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:38:19,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 00:38:19,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:38:19,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:38:19,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:38:19,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-27 00:38:19,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:38:19,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-10-27 00:38:19,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:38:19,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 00:38:19,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:38:19,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 181 [2020-10-27 00:38:19,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:38:19,833 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 35 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 00:38:19,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [257350064] [2020-10-27 00:38:19,833 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 00:38:19,834 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 00:38:19,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011090198] [2020-10-27 00:38:19,835 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 00:38:19,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 00:38:19,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 00:38:19,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 00:38:19,840 INFO L87 Difference]: Start difference. First operand 12458 states and 16671 transitions. Second operand 5 states. [2020-10-27 00:38:21,079 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-27 00:38:36,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 00:38:36,317 INFO L93 Difference]: Finished difference Result 30646 states and 42512 transitions. [2020-10-27 00:38:36,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 00:38:36,319 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 230 [2020-10-27 00:38:36,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 00:38:36,368 INFO L225 Difference]: With dead ends: 30646 [2020-10-27 00:38:36,368 INFO L226 Difference]: Without dead ends: 15972 [2020-10-27 00:38:36,405 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 00:38:36,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15972 states. [2020-10-27 00:38:36,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15972 to 15943. [2020-10-27 00:38:36,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15943 states. [2020-10-27 00:38:36,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15943 states to 15943 states and 18551 transitions. [2020-10-27 00:38:36,799 INFO L78 Accepts]: Start accepts. Automaton has 15943 states and 18551 transitions. Word has length 230 [2020-10-27 00:38:36,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 00:38:36,800 INFO L481 AbstractCegarLoop]: Abstraction has 15943 states and 18551 transitions. [2020-10-27 00:38:36,800 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 00:38:36,800 INFO L276 IsEmpty]: Start isEmpty. Operand 15943 states and 18551 transitions. [2020-10-27 00:38:36,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 514 [2020-10-27 00:38:36,813 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 00:38:36,813 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 00:38:36,814 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 00:38:36,814 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 00:38:36,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 00:38:36,815 INFO L82 PathProgramCache]: Analyzing trace with hash 11373964, now seen corresponding path program 1 times [2020-10-27 00:38:36,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 00:38:36,815 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1811996585] [2020-10-27 00:38:36,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 00:38:36,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:38:37,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:38:37,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:38:40,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:38:40,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:38:41,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:38:41,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 531 [2020-10-27 00:38:41,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 00:38:41,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-27 00:38:41,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:38:41,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 00:38:41,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 00:38:41,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 312 [2020-10-27 00:38:41,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:38:42,158 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-27 00:38:42,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 00:38:42,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:38:42,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:38:42,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:38:42,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 00:38:42,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:38:42,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 00:38:42,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:38:42,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 00:38:42,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:38:42,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 00:38:42,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:38:42,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 00:38:42,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:38:42,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:38:43,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:38:43,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-27 00:38:43,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:38:43,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 793 [2020-10-27 00:38:43,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:38:43,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 00:38:43,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 00:38:43,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 310 [2020-10-27 00:38:43,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:38:43,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-27 00:38:43,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:38:43,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:38:43,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:38:43,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 00:38:43,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:38:43,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-27 00:38:43,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:38:43,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 00:38:43,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 00:38:43,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-27 00:38:43,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:38:43,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2020-10-27 00:38:43,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:38:43,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:38:43,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:38:43,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-27 00:38:43,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:38:43,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-27 00:38:43,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:38:43,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:38:43,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-27 00:38:43,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:38:43,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:38:43,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2020-10-27 00:38:43,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:38:43,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:38:43,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:38:43,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 00:38:43,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:38:43,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-27 00:38:43,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:38:43,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:38:43,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-27 00:38:43,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:38:43,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:38:44,007 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 108 proven. 152 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2020-10-27 00:38:44,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1811996585] [2020-10-27 00:38:44,008 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 00:38:44,008 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 00:38:44,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215255918] [2020-10-27 00:38:44,009 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 00:38:44,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 00:38:44,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 00:38:44,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 00:38:44,011 INFO L87 Difference]: Start difference. First operand 15943 states and 18551 transitions. Second operand 7 states. [2020-10-27 00:38:44,169 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-27 00:38:51,409 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-10-27 00:38:57,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 00:38:57,130 INFO L93 Difference]: Finished difference Result 39293 states and 46623 transitions. [2020-10-27 00:38:57,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 00:38:57,132 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 513 [2020-10-27 00:38:57,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 00:38:57,225 INFO L225 Difference]: With dead ends: 39293 [2020-10-27 00:38:57,225 INFO L226 Difference]: Without dead ends: 23356 [2020-10-27 00:38:57,366 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-27 00:38:57,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23356 states. [2020-10-27 00:38:57,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23356 to 23303. [2020-10-27 00:38:57,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23303 states. [2020-10-27 00:38:57,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23303 states to 23303 states and 27091 transitions. [2020-10-27 00:38:57,932 INFO L78 Accepts]: Start accepts. Automaton has 23303 states and 27091 transitions. Word has length 513 [2020-10-27 00:38:57,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 00:38:57,933 INFO L481 AbstractCegarLoop]: Abstraction has 23303 states and 27091 transitions. [2020-10-27 00:38:57,934 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 00:38:57,934 INFO L276 IsEmpty]: Start isEmpty. Operand 23303 states and 27091 transitions. [2020-10-27 00:38:57,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1041 [2020-10-27 00:38:57,977 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 00:38:57,979 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 00:38:57,979 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 00:38:57,979 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 00:38:57,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 00:38:57,981 INFO L82 PathProgramCache]: Analyzing trace with hash 1956082574, now seen corresponding path program 1 times [2020-10-27 00:38:57,981 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 00:38:57,981 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [423594022] [2020-10-27 00:38:57,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 00:38:58,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:38:58,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:38:59,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:38:59,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:03,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:03,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1064 [2020-10-27 00:39:03,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 00:39:03,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5134 [2020-10-27 00:39:03,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:03,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 00:39:03,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-27 00:39:03,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-27 00:39:03,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 00:39:03,726 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-27 00:39:03,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 00:39:03,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:03,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:03,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:03,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 00:39:03,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:39:03,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 00:39:03,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:03,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:39:03,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:39:03,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:39:03,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:39:03,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 00:39:03,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:03,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:03,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:03,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-27 00:39:03,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:39:03,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-10-27 00:39:03,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:03,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:39:03,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:39:03,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:39:03,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:39:04,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-27 00:39:04,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:04,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:04,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:04,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-27 00:39:04,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:39:04,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-27 00:39:04,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:04,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:39:04,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:39:04,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:39:04,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:39:04,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-27 00:39:04,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:04,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:04,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:04,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 00:39:04,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:39:04,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 00:39:04,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:04,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:39:04,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:39:04,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:39:04,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 00:39:04,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-27 00:39:04,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:04,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:05,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:05,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-27 00:39:05,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:39:05,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 310 [2020-10-27 00:39:05,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:05,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 00:39:05,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:39:05,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-27 00:39:05,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:39:05,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-27 00:39:05,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:05,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:05,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:05,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 00:39:05,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:39:05,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-27 00:39:05,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:05,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 00:39:05,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:39:05,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 00:39:05,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:39:05,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-27 00:39:05,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:05,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:05,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:05,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-27 00:39:05,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:39:05,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-27 00:39:05,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:05,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 00:39:05,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 00:39:05,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-27 00:39:05,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:39:05,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 932 [2020-10-27 00:39:05,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:05,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:05,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:05,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 00:39:05,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:39:05,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-27 00:39:05,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:05,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:39:05,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-27 00:39:05,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:39:05,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:39:06,532 INFO L134 CoverageAnalysis]: Checked inductivity of 847 backedges. 334 proven. 71 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2020-10-27 00:39:06,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [423594022] [2020-10-27 00:39:06,533 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 00:39:06,534 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 00:39:06,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868566724] [2020-10-27 00:39:06,535 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 00:39:06,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 00:39:06,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 00:39:06,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 00:39:06,537 INFO L87 Difference]: Start difference. First operand 23303 states and 27091 transitions. Second operand 7 states. [2020-10-27 00:39:06,703 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-27 00:39:12,939 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-27 00:39:20,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 00:39:20,484 INFO L93 Difference]: Finished difference Result 60969 states and 73067 transitions. [2020-10-27 00:39:20,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 00:39:20,487 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1040 [2020-10-27 00:39:20,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 00:39:20,628 INFO L225 Difference]: With dead ends: 60969 [2020-10-27 00:39:20,629 INFO L226 Difference]: Without dead ends: 37672 [2020-10-27 00:39:20,680 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-27 00:39:20,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37672 states. [2020-10-27 00:39:21,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37672 to 37588. [2020-10-27 00:39:21,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37588 states. [2020-10-27 00:39:21,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37588 states to 37588 states and 44046 transitions. [2020-10-27 00:39:21,695 INFO L78 Accepts]: Start accepts. Automaton has 37588 states and 44046 transitions. Word has length 1040 [2020-10-27 00:39:21,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 00:39:21,697 INFO L481 AbstractCegarLoop]: Abstraction has 37588 states and 44046 transitions. [2020-10-27 00:39:21,698 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 00:39:21,698 INFO L276 IsEmpty]: Start isEmpty. Operand 37588 states and 44046 transitions. [2020-10-27 00:39:21,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1093 [2020-10-27 00:39:21,753 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 00:39:21,755 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 00:39:21,755 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 00:39:21,755 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 00:39:21,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 00:39:21,757 INFO L82 PathProgramCache]: Analyzing trace with hash 253865382, now seen corresponding path program 1 times [2020-10-27 00:39:21,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 00:39:21,757 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1513151024] [2020-10-27 00:39:21,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 00:39:22,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:22,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:22,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:26,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:27,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:27,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1116 [2020-10-27 00:39:27,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 00:39:27,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-10-27 00:39:27,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:27,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 00:39:27,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-27 00:39:27,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 148 [2020-10-27 00:39:27,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:39:27,596 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-27 00:39:27,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 00:39:27,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:27,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:27,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:27,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 00:39:27,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:39:27,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 00:39:27,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:27,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:39:27,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:39:27,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:39:27,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:39:27,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 00:39:27,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:27,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:27,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:27,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-27 00:39:27,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:39:27,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-10-27 00:39:27,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:27,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:39:27,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:39:27,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:39:27,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:39:27,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-27 00:39:27,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:27,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:28,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:28,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-27 00:39:28,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:39:28,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-27 00:39:28,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:28,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:39:28,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:39:28,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:39:28,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:39:28,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-27 00:39:28,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:28,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:28,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:28,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 00:39:28,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:39:28,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 00:39:28,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:28,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:39:28,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:39:28,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:39:28,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:39:28,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-27 00:39:28,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:28,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:28,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:28,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-27 00:39:28,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:39:28,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 324 [2020-10-27 00:39:28,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:28,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 00:39:28,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:39:28,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-27 00:39:28,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:39:28,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-27 00:39:28,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:28,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:29,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:29,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 00:39:29,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:39:29,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-27 00:39:29,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:29,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 00:39:29,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:39:29,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 00:39:29,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:39:29,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-27 00:39:29,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:29,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:29,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:29,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-27 00:39:29,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:39:29,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 200 [2020-10-27 00:39:29,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:29,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 00:39:29,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 00:39:29,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-27 00:39:29,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:39:29,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 984 [2020-10-27 00:39:29,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:29,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:29,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:29,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 00:39:29,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:39:29,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 00:39:29,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:29,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:39:29,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-27 00:39:29,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:39:29,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:39:30,141 INFO L134 CoverageAnalysis]: Checked inductivity of 951 backedges. 438 proven. 71 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2020-10-27 00:39:30,141 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1513151024] [2020-10-27 00:39:30,141 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 00:39:30,142 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-27 00:39:30,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411867336] [2020-10-27 00:39:30,144 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 00:39:30,144 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 00:39:30,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 00:39:30,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-27 00:39:30,145 INFO L87 Difference]: Start difference. First operand 37588 states and 44046 transitions. Second operand 8 states. [2020-10-27 00:39:30,344 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-27 00:39:39,492 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-10-27 00:39:46,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 00:39:46,672 INFO L93 Difference]: Finished difference Result 88044 states and 104275 transitions. [2020-10-27 00:39:46,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 00:39:46,673 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1092 [2020-10-27 00:39:46,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 00:39:46,894 INFO L225 Difference]: With dead ends: 88044 [2020-10-27 00:39:46,894 INFO L226 Difference]: Without dead ends: 50462 [2020-10-27 00:39:46,965 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-27 00:39:47,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50462 states. [2020-10-27 00:39:48,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50462 to 50431. [2020-10-27 00:39:48,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50431 states. [2020-10-27 00:39:48,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50431 states to 50431 states and 58914 transitions. [2020-10-27 00:39:48,397 INFO L78 Accepts]: Start accepts. Automaton has 50431 states and 58914 transitions. Word has length 1092 [2020-10-27 00:39:48,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 00:39:48,399 INFO L481 AbstractCegarLoop]: Abstraction has 50431 states and 58914 transitions. [2020-10-27 00:39:48,399 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 00:39:48,399 INFO L276 IsEmpty]: Start isEmpty. Operand 50431 states and 58914 transitions. [2020-10-27 00:39:48,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1176 [2020-10-27 00:39:48,420 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 00:39:48,421 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 00:39:48,422 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 00:39:48,422 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 00:39:48,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 00:39:48,423 INFO L82 PathProgramCache]: Analyzing trace with hash -1186376636, now seen corresponding path program 1 times [2020-10-27 00:39:48,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 00:39:48,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2043766269] [2020-10-27 00:39:48,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 00:39:48,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:49,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:49,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:53,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:53,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:53,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:53,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1201 [2020-10-27 00:39:53,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 00:39:53,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-10-27 00:39:53,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:53,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 00:39:53,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-27 00:39:53,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-27 00:39:53,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:39:54,082 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-27 00:39:54,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 00:39:54,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:54,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:54,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:54,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 00:39:54,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:39:54,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 00:39:54,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:54,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:39:54,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:39:54,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:39:54,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:39:54,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 00:39:54,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:54,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:54,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:54,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-27 00:39:54,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:39:54,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-27 00:39:54,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:54,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:39:54,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:39:54,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:39:54,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:39:54,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-27 00:39:54,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:54,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:54,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:54,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-27 00:39:54,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:39:54,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-27 00:39:54,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:54,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:39:54,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:39:54,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:39:54,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:39:54,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-27 00:39:54,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:54,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:54,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:54,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 00:39:54,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:39:54,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 00:39:54,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:54,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:39:54,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:39:54,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:39:54,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:39:54,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-27 00:39:54,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:54,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:54,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:54,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-27 00:39:54,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:39:54,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-10-27 00:39:54,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:54,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 00:39:54,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:39:54,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-27 00:39:54,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:39:55,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-27 00:39:55,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:55,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:55,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:55,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 00:39:55,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:39:55,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-27 00:39:55,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:55,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 00:39:55,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:39:55,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 00:39:55,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:39:55,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-27 00:39:55,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:55,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:55,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:55,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-27 00:39:55,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:39:55,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-27 00:39:55,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:55,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 00:39:55,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 00:39:55,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-27 00:39:55,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:39:55,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 964 [2020-10-27 00:39:55,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:55,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:55,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:55,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-27 00:39:55,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:39:55,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-27 00:39:55,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:55,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:39:55,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 104 [2020-10-27 00:39:55,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:39:55,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:39:55,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1070 [2020-10-27 00:39:55,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:39:55,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:39:55,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:39:55,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-27 00:39:55,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:39:55,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 00:39:55,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:39:55,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:39:55,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-27 00:39:55,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:39:55,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:39:56,442 INFO L134 CoverageAnalysis]: Checked inductivity of 1325 backedges. 442 proven. 171 refuted. 0 times theorem prover too weak. 712 trivial. 0 not checked. [2020-10-27 00:39:56,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2043766269] [2020-10-27 00:39:56,443 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 00:39:56,443 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 00:39:56,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007157685] [2020-10-27 00:39:56,444 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 00:39:56,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 00:39:56,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 00:39:56,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 00:39:56,446 INFO L87 Difference]: Start difference. First operand 50431 states and 58914 transitions. Second operand 7 states. [2020-10-27 00:40:04,640 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-10-27 00:40:08,174 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-10-27 00:40:15,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 00:40:15,065 INFO L93 Difference]: Finished difference Result 100900 states and 117924 transitions. [2020-10-27 00:40:15,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 00:40:15,066 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1175 [2020-10-27 00:40:15,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 00:40:15,264 INFO L225 Difference]: With dead ends: 100900 [2020-10-27 00:40:15,264 INFO L226 Difference]: Without dead ends: 50475 [2020-10-27 00:40:15,352 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-27 00:40:15,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50475 states. [2020-10-27 00:40:16,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50475 to 50460. [2020-10-27 00:40:16,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50460 states. [2020-10-27 00:40:17,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50460 states to 50460 states and 58824 transitions. [2020-10-27 00:40:17,047 INFO L78 Accepts]: Start accepts. Automaton has 50460 states and 58824 transitions. Word has length 1175 [2020-10-27 00:40:17,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 00:40:17,052 INFO L481 AbstractCegarLoop]: Abstraction has 50460 states and 58824 transitions. [2020-10-27 00:40:17,052 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 00:40:17,052 INFO L276 IsEmpty]: Start isEmpty. Operand 50460 states and 58824 transitions. [2020-10-27 00:40:17,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1184 [2020-10-27 00:40:17,073 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 00:40:17,074 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 00:40:17,075 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 00:40:17,075 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 00:40:17,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 00:40:17,076 INFO L82 PathProgramCache]: Analyzing trace with hash 287664372, now seen corresponding path program 1 times [2020-10-27 00:40:17,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 00:40:17,076 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2096285113] [2020-10-27 00:40:17,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 00:40:17,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:40:17,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:40:18,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:40:18,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:40:22,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:40:22,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1209 [2020-10-27 00:40:22,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 00:40:22,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5115 [2020-10-27 00:40:22,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:40:22,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 00:40:22,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 997 [2020-10-27 00:40:22,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-27 00:40:22,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:40:22,906 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-27 00:40:22,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 00:40:22,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:40:22,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:40:22,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:40:22,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 00:40:22,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:40:22,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 00:40:22,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:40:22,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:40:22,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:40:22,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:40:22,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:40:22,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 00:40:22,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:40:22,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:40:23,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:40:23,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-27 00:40:23,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:40:23,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-27 00:40:23,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:40:23,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:40:23,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:40:23,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:40:23,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:40:23,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-27 00:40:23,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:40:23,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:40:23,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:40:23,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-27 00:40:23,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:40:23,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-27 00:40:23,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:40:23,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:40:23,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:40:23,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:40:23,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:40:23,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-27 00:40:23,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:40:23,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:40:23,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:40:23,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 00:40:23,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:40:23,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 00:40:23,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:40:23,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:40:23,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:40:23,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:40:23,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 00:40:23,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-27 00:40:23,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 00:40:23,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 00:40:23,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 00:40:23,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-27 00:40:23,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 00:40:23,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-27 00:40:23,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 00:40:23,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 00:40:23,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 00:40:23,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 00:40:23,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0