/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/Problem10_label22.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 22:31:21,595 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 22:31:21,599 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 22:31:21,637 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 22:31:21,638 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 22:31:21,640 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 22:31:21,642 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 22:31:21,644 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 22:31:21,647 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 22:31:21,648 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 22:31:21,650 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 22:31:21,651 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 22:31:21,652 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 22:31:21,653 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 22:31:21,655 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 22:31:21,656 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 22:31:21,658 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 22:31:21,659 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 22:31:21,674 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 22:31:21,676 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 22:31:21,679 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 22:31:21,680 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 22:31:21,682 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 22:31:21,683 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 22:31:21,687 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 22:31:21,688 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 22:31:21,688 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 22:31:21,689 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 22:31:21,690 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 22:31:21,691 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 22:31:21,692 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 22:31:21,693 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 22:31:21,694 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 22:31:21,695 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 22:31:21,696 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 22:31:21,696 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 22:31:21,697 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 22:31:21,698 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 22:31:21,698 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 22:31:21,699 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 22:31:21,700 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 22:31:21,703 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 [2020-10-26 22:31:21,757 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 22:31:21,757 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 22:31:21,761 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 22:31:21,762 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 22:31:21,762 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 22:31:21,762 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 22:31:21,763 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 22:31:21,763 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 22:31:21,763 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 22:31:21,763 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 22:31:21,765 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 22:31:21,765 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 22:31:21,765 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 22:31:21,766 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 22:31:21,766 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 22:31:21,766 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 22:31:21,766 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 22:31:21,767 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 22:31:21,767 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 22:31:21,767 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 22:31:21,767 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 22:31:21,768 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 22:31:21,768 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 22:31:21,769 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 22:31:21,769 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 22:31:21,769 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 22:31:21,769 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 22:31:21,769 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 22:31:21,770 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 22:31:21,770 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 22:31:22,166 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 22:31:22,207 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 22:31:22,211 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 22:31:22,212 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 22:31:22,213 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 22:31:22,214 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label22.c [2020-10-26 22:31:22,303 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5fc52f0d7/27e61b6e68b04808b189fa371dbac837/FLAG93732d0cc [2020-10-26 22:31:23,140 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 22:31:23,143 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label22.c [2020-10-26 22:31:23,161 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5fc52f0d7/27e61b6e68b04808b189fa371dbac837/FLAG93732d0cc [2020-10-26 22:31:23,346 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5fc52f0d7/27e61b6e68b04808b189fa371dbac837 [2020-10-26 22:31:23,351 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 22:31:23,359 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 22:31:23,362 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 22:31:23,363 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 22:31:23,367 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 22:31:23,368 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:31:23" (1/1) ... [2020-10-26 22:31:23,373 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4aa462a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:23, skipping insertion in model container [2020-10-26 22:31:23,373 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:31:23" (1/1) ... [2020-10-26 22:31:23,382 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 22:31:23,449 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 22:31:23,967 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 22:31:23,985 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 22:31:24,153 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 22:31:24,173 INFO L208 MainTranslator]: Completed translation [2020-10-26 22:31:24,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:24 WrapperNode [2020-10-26 22:31:24,173 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 22:31:24,175 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 22:31:24,175 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 22:31:24,175 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 22:31:24,228 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:24" (1/1) ... [2020-10-26 22:31:24,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:24" (1/1) ... [2020-10-26 22:31:24,251 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:24" (1/1) ... [2020-10-26 22:31:24,252 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:24" (1/1) ... [2020-10-26 22:31:24,290 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:24" (1/1) ... [2020-10-26 22:31:24,306 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:24" (1/1) ... [2020-10-26 22:31:24,313 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:24" (1/1) ... [2020-10-26 22:31:24,321 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 22:31:24,322 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 22:31:24,322 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 22:31:24,322 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 22:31:24,323 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:24" (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 [2020-10-26 22:31:24,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 22:31:24,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 22:31:24,408 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 22:31:24,408 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 22:31:24,409 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 22:31:24,409 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 22:31:24,409 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 22:31:24,409 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 22:31:24,409 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 22:31:24,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 22:31:24,410 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 22:31:24,410 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 22:31:24,410 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 22:31:24,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 22:31:24,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 22:31:24,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 22:31:24,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 22:31:24,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 22:31:24,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 22:31:25,735 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 22:31:25,735 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 22:31:25,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:31:25 BoogieIcfgContainer [2020-10-26 22:31:25,738 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 22:31:25,740 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 22:31:25,740 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 22:31:25,744 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 22:31:25,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 10:31:23" (1/3) ... [2020-10-26 22:31:25,745 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77d95032 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:31:25, skipping insertion in model container [2020-10-26 22:31:25,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:24" (2/3) ... [2020-10-26 22:31:25,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77d95032 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:31:25, skipping insertion in model container [2020-10-26 22:31:25,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:31:25" (3/3) ... [2020-10-26 22:31:25,748 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label22.c [2020-10-26 22:31:25,760 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 22:31:25,766 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 22:31:25,781 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 22:31:25,816 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 22:31:25,816 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 22:31:25,817 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 22:31:25,817 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 22:31:25,817 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 22:31:25,817 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 22:31:25,817 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 22:31:25,818 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 22:31:25,841 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states. [2020-10-26 22:31:25,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-26 22:31:25,850 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:31:25,851 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] [2020-10-26 22:31:25,851 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:31:25,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:31:25,858 INFO L82 PathProgramCache]: Analyzing trace with hash -1918757124, now seen corresponding path program 1 times [2020-10-26 22:31:25,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:31:25,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [756798687] [2020-10-26 22:31:25,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:31:26,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:26,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:26,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:26,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-26 22:31:26,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:26,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 490 [2020-10-26 22:31:26,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:26,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:31:26,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:31:26,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-26 22:31:26,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-26 22:31:26,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:31:26,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:26,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:26,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:26,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:31:26,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:26,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-26 22:31:26,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:26,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:31:26,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:26,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:31:26,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:26,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 22:31:26,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [756798687] [2020-10-26 22:31:26,900 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 22:31:26,901 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 22:31:26,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358016390] [2020-10-26 22:31:26,908 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 22:31:26,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:31:26,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 22:31:26,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:31:26,928 INFO L87 Difference]: Start difference. First operand 219 states. Second operand 5 states. [2020-10-26 22:31:29,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:31:29,890 INFO L93 Difference]: Finished difference Result 735 states and 1307 transitions. [2020-10-26 22:31:29,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 22:31:29,894 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2020-10-26 22:31:29,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:31:29,913 INFO L225 Difference]: With dead ends: 735 [2020-10-26 22:31:29,913 INFO L226 Difference]: Without dead ends: 448 [2020-10-26 22:31:29,923 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:31:29,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2020-10-26 22:31:30,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 442. [2020-10-26 22:31:30,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2020-10-26 22:31:30,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 673 transitions. [2020-10-26 22:31:30,027 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 673 transitions. Word has length 44 [2020-10-26 22:31:30,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:31:30,027 INFO L481 AbstractCegarLoop]: Abstraction has 442 states and 673 transitions. [2020-10-26 22:31:30,027 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 22:31:30,028 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 673 transitions. [2020-10-26 22:31:30,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-10-26 22:31:30,035 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:31:30,035 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] [2020-10-26 22:31:30,035 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 22:31:30,036 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:31:30,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:31:30,037 INFO L82 PathProgramCache]: Analyzing trace with hash 14252072, now seen corresponding path program 1 times [2020-10-26 22:31:30,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:31:30,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1152360354] [2020-10-26 22:31:30,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:31:30,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:30,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:30,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:31,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:31,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:31,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-26 22:31:31,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:31:31,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1867 [2020-10-26 22:31:31,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:31,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:31:31,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:31:31,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-26 22:31:31,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:31:32,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:31:32,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:32,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:32,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:32,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:31:32,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:32,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-26 22:31:32,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:32,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:31:32,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:32,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:31:32,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:32,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:31:32,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:32,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:32,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:32,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-26 22:31:32,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:32,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184 [2020-10-26 22:31:32,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:32,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:31:32,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:31:32,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-26 22:31:32,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:32,516 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 22:31:32,517 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1152360354] [2020-10-26 22:31:32,517 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 22:31:32,518 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-26 22:31:32,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389562538] [2020-10-26 22:31:32,521 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:31:32,521 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:31:32,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:31:32,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:31:32,526 INFO L87 Difference]: Start difference. First operand 442 states and 673 transitions. Second operand 7 states. [2020-10-26 22:31:34,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:31:34,276 INFO L93 Difference]: Finished difference Result 1196 states and 1871 transitions. [2020-10-26 22:31:34,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 22:31:34,277 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 126 [2020-10-26 22:31:34,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:31:34,289 INFO L225 Difference]: With dead ends: 1196 [2020-10-26 22:31:34,290 INFO L226 Difference]: Without dead ends: 760 [2020-10-26 22:31:34,292 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-26 22:31:34,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2020-10-26 22:31:34,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 593. [2020-10-26 22:31:34,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 593 states. [2020-10-26 22:31:34,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 856 transitions. [2020-10-26 22:31:34,397 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 856 transitions. Word has length 126 [2020-10-26 22:31:34,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:31:34,399 INFO L481 AbstractCegarLoop]: Abstraction has 593 states and 856 transitions. [2020-10-26 22:31:34,400 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:31:34,400 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 856 transitions. [2020-10-26 22:31:34,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-10-26 22:31:34,413 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:31:34,413 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] [2020-10-26 22:31:34,414 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 22:31:34,414 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:31:34,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:31:34,416 INFO L82 PathProgramCache]: Analyzing trace with hash -1898931752, now seen corresponding path program 1 times [2020-10-26 22:31:34,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:31:34,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [913318497] [2020-10-26 22:31:34,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:31:34,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:34,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:34,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:35,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:36,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:36,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-26 22:31:36,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:31:36,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1836 [2020-10-26 22:31:36,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:36,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:31:36,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:31:36,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-26 22:31:36,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:36,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:31:36,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:36,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:36,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:36,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:31:36,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:36,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 22:31:36,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:36,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:31:36,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:36,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:31:36,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:36,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:31:36,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:36,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:36,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:36,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-26 22:31:36,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:36,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-10-26 22:31:36,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:36,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:31:36,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:31:36,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-26 22:31:36,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:36,842 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 22:31:36,842 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [913318497] [2020-10-26 22:31:36,843 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 22:31:36,843 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-26 22:31:36,843 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23985093] [2020-10-26 22:31:36,845 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:31:36,845 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:31:36,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:31:36,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:31:36,848 INFO L87 Difference]: Start difference. First operand 593 states and 856 transitions. Second operand 7 states. [2020-10-26 22:31:38,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:31:38,642 INFO L93 Difference]: Finished difference Result 1498 states and 2197 transitions. [2020-10-26 22:31:38,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 22:31:38,644 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 166 [2020-10-26 22:31:38,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:31:38,651 INFO L225 Difference]: With dead ends: 1498 [2020-10-26 22:31:38,651 INFO L226 Difference]: Without dead ends: 911 [2020-10-26 22:31:38,654 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:31:38,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 911 states. [2020-10-26 22:31:38,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 911 to 750. [2020-10-26 22:31:38,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 750 states. [2020-10-26 22:31:38,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 1013 transitions. [2020-10-26 22:31:38,690 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 1013 transitions. Word has length 166 [2020-10-26 22:31:38,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:31:38,691 INFO L481 AbstractCegarLoop]: Abstraction has 750 states and 1013 transitions. [2020-10-26 22:31:38,691 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:31:38,691 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 1013 transitions. [2020-10-26 22:31:38,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-10-26 22:31:38,694 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:31:38,695 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:31:38,695 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 22:31:38,695 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:31:38,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:31:38,695 INFO L82 PathProgramCache]: Analyzing trace with hash -529335956, now seen corresponding path program 1 times [2020-10-26 22:31:38,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:31:38,696 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1345278253] [2020-10-26 22:31:38,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:31:38,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:38,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:38,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:39,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:40,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:40,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 210 [2020-10-26 22:31:40,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:31:40,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1335 [2020-10-26 22:31:40,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:40,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:31:40,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-26 22:31:40,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-26 22:31:40,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-26 22:31:40,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:31:40,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:40,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:40,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:40,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:31:40,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:40,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 22:31:40,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:40,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:31:40,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:40,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:31:40,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:40,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:31:40,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:40,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:40,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:40,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-26 22:31:40,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:40,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-26 22:31:40,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:40,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:31:40,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:40,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-26 22:31:40,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:40,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-26 22:31:40,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:40,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:40,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:40,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-26 22:31:40,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:40,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-26 22:31:40,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:40,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:31:40,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:31:40,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-26 22:31:40,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:40,540 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 139 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:31:40,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1345278253] [2020-10-26 22:31:40,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:31:40,541 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:31:40,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445543786] [2020-10-26 22:31:40,542 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:31:40,542 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:31:40,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:31:40,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:31:40,543 INFO L87 Difference]: Start difference. First operand 750 states and 1013 transitions. Second operand 7 states. [2020-10-26 22:31:42,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:31:42,442 INFO L93 Difference]: Finished difference Result 1826 states and 2560 transitions. [2020-10-26 22:31:42,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 22:31:42,443 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 196 [2020-10-26 22:31:42,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:31:42,452 INFO L225 Difference]: With dead ends: 1826 [2020-10-26 22:31:42,452 INFO L226 Difference]: Without dead ends: 1082 [2020-10-26 22:31:42,455 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:31:42,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1082 states. [2020-10-26 22:31:42,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1082 to 1054. [2020-10-26 22:31:42,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1054 states. [2020-10-26 22:31:42,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1054 states to 1054 states and 1423 transitions. [2020-10-26 22:31:42,539 INFO L78 Accepts]: Start accepts. Automaton has 1054 states and 1423 transitions. Word has length 196 [2020-10-26 22:31:42,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:31:42,541 INFO L481 AbstractCegarLoop]: Abstraction has 1054 states and 1423 transitions. [2020-10-26 22:31:42,541 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:31:42,541 INFO L276 IsEmpty]: Start isEmpty. Operand 1054 states and 1423 transitions. [2020-10-26 22:31:42,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-10-26 22:31:42,546 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:31:42,546 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:31:42,546 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 22:31:42,547 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:31:42,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:31:42,547 INFO L82 PathProgramCache]: Analyzing trace with hash -2041595408, now seen corresponding path program 1 times [2020-10-26 22:31:42,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:31:42,548 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1269821820] [2020-10-26 22:31:42,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:31:42,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:42,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:42,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:42,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:44,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:47,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:47,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-10-26 22:31:47,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:31:47,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4533 [2020-10-26 22:31:47,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:47,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:31:47,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:31:47,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-26 22:31:47,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:47,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:31:47,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:47,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:47,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:47,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:31:47,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:47,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 22:31:47,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:47,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:31:47,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:47,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:31:47,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:47,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:31:47,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:47,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:47,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:47,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-26 22:31:47,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:47,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-10-26 22:31:47,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:47,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:31:47,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:31:47,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-26 22:31:47,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:47,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-26 22:31:47,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:47,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:47,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:47,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-26 22:31:47,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:47,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-26 22:31:47,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:47,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:31:47,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-26 22:31:47,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:31:47,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:47,705 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 72 proven. 72 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-26 22:31:47,705 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1269821820] [2020-10-26 22:31:47,705 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:31:47,706 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:31:47,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522815330] [2020-10-26 22:31:47,706 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:31:47,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:31:47,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:31:47,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:31:47,708 INFO L87 Difference]: Start difference. First operand 1054 states and 1423 transitions. Second operand 7 states. [2020-10-26 22:31:49,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:31:49,254 INFO L93 Difference]: Finished difference Result 2279 states and 3068 transitions. [2020-10-26 22:31:49,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 22:31:49,255 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 203 [2020-10-26 22:31:49,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:31:49,265 INFO L225 Difference]: With dead ends: 2279 [2020-10-26 22:31:49,265 INFO L226 Difference]: Without dead ends: 1231 [2020-10-26 22:31:49,269 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-26 22:31:49,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1231 states. [2020-10-26 22:31:49,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1231 to 1203. [2020-10-26 22:31:49,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1203 states. [2020-10-26 22:31:49,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1203 states to 1203 states and 1588 transitions. [2020-10-26 22:31:49,323 INFO L78 Accepts]: Start accepts. Automaton has 1203 states and 1588 transitions. Word has length 203 [2020-10-26 22:31:49,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:31:49,323 INFO L481 AbstractCegarLoop]: Abstraction has 1203 states and 1588 transitions. [2020-10-26 22:31:49,323 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:31:49,324 INFO L276 IsEmpty]: Start isEmpty. Operand 1203 states and 1588 transitions. [2020-10-26 22:31:49,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2020-10-26 22:31:49,329 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:31:49,329 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:31:49,329 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 22:31:49,330 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:31:49,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:31:49,330 INFO L82 PathProgramCache]: Analyzing trace with hash 981789984, now seen corresponding path program 1 times [2020-10-26 22:31:49,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:31:49,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1412189879] [2020-10-26 22:31:49,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:31:49,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:49,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:49,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:49,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:50,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:51,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:51,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-10-26 22:31:51,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:31:51,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1979 [2020-10-26 22:31:51,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:51,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:31:51,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-26 22:31:51,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-26 22:31:51,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:51,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:31:51,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:51,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:51,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:51,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:31:51,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:51,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 22:31:51,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:51,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:31:51,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:51,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:31:51,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:51,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:31:51,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:51,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:51,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:51,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-26 22:31:51,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:51,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-26 22:31:51,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:51,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:31:51,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:51,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-26 22:31:51,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:31:51,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-26 22:31:51,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:51,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:51,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:51,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-26 22:31:51,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:51,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 272 [2020-10-26 22:31:51,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:51,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:31:51,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:31:51,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-10-26 22:31:51,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:52,200 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 148 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:31:52,201 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1412189879] [2020-10-26 22:31:52,201 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:31:52,201 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:31:52,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120070011] [2020-10-26 22:31:52,202 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:31:52,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:31:52,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:31:52,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:31:52,203 INFO L87 Difference]: Start difference. First operand 1203 states and 1588 transitions. Second operand 7 states. [2020-10-26 22:31:54,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:31:54,293 INFO L93 Difference]: Finished difference Result 2798 states and 4261 transitions. [2020-10-26 22:31:54,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 22:31:54,294 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 243 [2020-10-26 22:31:54,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:31:54,308 INFO L225 Difference]: With dead ends: 2798 [2020-10-26 22:31:54,308 INFO L226 Difference]: Without dead ends: 1275 [2020-10-26 22:31:54,315 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:31:54,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1275 states. [2020-10-26 22:31:54,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1275 to 1193. [2020-10-26 22:31:54,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1193 states. [2020-10-26 22:31:54,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1193 states to 1193 states and 1516 transitions. [2020-10-26 22:31:54,387 INFO L78 Accepts]: Start accepts. Automaton has 1193 states and 1516 transitions. Word has length 243 [2020-10-26 22:31:54,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:31:54,387 INFO L481 AbstractCegarLoop]: Abstraction has 1193 states and 1516 transitions. [2020-10-26 22:31:54,387 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:31:54,388 INFO L276 IsEmpty]: Start isEmpty. Operand 1193 states and 1516 transitions. [2020-10-26 22:31:54,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2020-10-26 22:31:54,393 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:31:54,394 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:31:54,394 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 22:31:54,394 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:31:54,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:31:54,395 INFO L82 PathProgramCache]: Analyzing trace with hash 500270892, now seen corresponding path program 1 times [2020-10-26 22:31:54,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:31:54,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [953921937] [2020-10-26 22:31:54,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:31:54,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:54,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:54,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:55,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:55,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:57,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:57,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 289 [2020-10-26 22:31:57,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:31:57,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2705 [2020-10-26 22:31:57,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:57,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:31:57,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-26 22:31:57,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-26 22:31:57,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:57,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:31:57,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:57,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:57,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:57,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:31:57,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:57,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 22:31:57,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:57,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:31:57,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:57,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:31:57,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:57,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:31:57,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:57,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:57,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:57,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-26 22:31:57,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:57,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-26 22:31:57,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:57,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:31:57,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:57,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-26 22:31:57,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:57,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-26 22:31:57,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:57,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:57,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:57,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-26 22:31:57,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:57,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-26 22:31:57,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:57,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:31:57,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:31:57,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-26 22:31:57,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:57,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-26 22:31:57,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:57,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:57,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:57,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-26 22:31:57,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:57,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-26 22:31:57,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:57,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:31:57,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-26 22:31:57,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:31:57,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:57,750 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 179 proven. 76 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-10-26 22:31:57,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [953921937] [2020-10-26 22:31:57,751 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:31:57,751 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:31:57,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576904619] [2020-10-26 22:31:57,752 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:31:57,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:31:57,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:31:57,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:31:57,755 INFO L87 Difference]: Start difference. First operand 1193 states and 1516 transitions. Second operand 7 states. [2020-10-26 22:31:59,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:31:59,896 INFO L93 Difference]: Finished difference Result 2688 states and 3464 transitions. [2020-10-26 22:31:59,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 22:31:59,898 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 273 [2020-10-26 22:31:59,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:31:59,907 INFO L225 Difference]: With dead ends: 2688 [2020-10-26 22:31:59,907 INFO L226 Difference]: Without dead ends: 1644 [2020-10-26 22:31:59,911 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:31:59,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1644 states. [2020-10-26 22:31:59,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1644 to 1346. [2020-10-26 22:31:59,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1346 states. [2020-10-26 22:31:59,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1346 states to 1346 states and 1696 transitions. [2020-10-26 22:31:59,969 INFO L78 Accepts]: Start accepts. Automaton has 1346 states and 1696 transitions. Word has length 273 [2020-10-26 22:31:59,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:31:59,970 INFO L481 AbstractCegarLoop]: Abstraction has 1346 states and 1696 transitions. [2020-10-26 22:31:59,970 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:31:59,970 INFO L276 IsEmpty]: Start isEmpty. Operand 1346 states and 1696 transitions. [2020-10-26 22:31:59,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2020-10-26 22:31:59,976 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:31:59,977 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, 3, 3, 3, 3, 3, 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] [2020-10-26 22:31:59,977 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 22:31:59,977 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:31:59,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:31:59,978 INFO L82 PathProgramCache]: Analyzing trace with hash 1340829940, now seen corresponding path program 1 times [2020-10-26 22:31:59,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:31:59,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [899754272] [2020-10-26 22:31:59,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:00,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:00,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:00,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:01,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:01,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:04,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:04,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 334 [2020-10-26 22:32:04,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:32:04,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4206 [2020-10-26 22:32:04,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:04,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:04,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-26 22:32:04,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-26 22:32:04,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:04,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:04,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:04,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:04,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:04,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:04,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:04,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 22:32:04,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:04,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:04,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:04,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:04,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:04,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:04,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:04,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:04,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:04,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 22:32:04,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:04,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-26 22:32:04,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:04,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:04,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:04,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-26 22:32:04,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:32:04,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 22:32:04,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:04,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:04,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:04,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-26 22:32:04,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:04,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-26 22:32:04,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:04,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:04,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:04,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-26 22:32:04,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:32:04,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-10-26 22:32:04,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:04,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:04,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:04,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-26 22:32:04,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:04,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-26 22:32:04,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:04,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:04,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-26 22:32:04,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:04,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:05,160 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 186 proven. 76 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2020-10-26 22:32:05,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [899754272] [2020-10-26 22:32:05,161 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:05,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:32:05,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184020479] [2020-10-26 22:32:05,163 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:32:05,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:05,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:32:05,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:32:05,164 INFO L87 Difference]: Start difference. First operand 1346 states and 1696 transitions. Second operand 7 states. [2020-10-26 22:32:07,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:07,223 INFO L93 Difference]: Finished difference Result 2859 states and 3729 transitions. [2020-10-26 22:32:07,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 22:32:07,224 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 318 [2020-10-26 22:32:07,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:07,235 INFO L225 Difference]: With dead ends: 2859 [2020-10-26 22:32:07,235 INFO L226 Difference]: Without dead ends: 1662 [2020-10-26 22:32:07,239 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-26 22:32:07,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1662 states. [2020-10-26 22:32:07,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1662 to 1648. [2020-10-26 22:32:07,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1648 states. [2020-10-26 22:32:07,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1648 states to 1648 states and 2037 transitions. [2020-10-26 22:32:07,298 INFO L78 Accepts]: Start accepts. Automaton has 1648 states and 2037 transitions. Word has length 318 [2020-10-26 22:32:07,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:07,298 INFO L481 AbstractCegarLoop]: Abstraction has 1648 states and 2037 transitions. [2020-10-26 22:32:07,298 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:32:07,298 INFO L276 IsEmpty]: Start isEmpty. Operand 1648 states and 2037 transitions. [2020-10-26 22:32:07,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2020-10-26 22:32:07,307 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:07,309 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, 3, 3, 3, 3, 3, 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] [2020-10-26 22:32:07,309 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 22:32:07,309 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:07,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:07,310 INFO L82 PathProgramCache]: Analyzing trace with hash -503461972, now seen corresponding path program 1 times [2020-10-26 22:32:07,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:07,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1983999355] [2020-10-26 22:32:07,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:07,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:07,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:07,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:08,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:08,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:08,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 353 [2020-10-26 22:32:08,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:32:08,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1559 [2020-10-26 22:32:08,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:08,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:08,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 223 [2020-10-26 22:32:08,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-26 22:32:08,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:09,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:09,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:09,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:09,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:09,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:09,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:09,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 22:32:09,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:09,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:09,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:09,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:09,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:09,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:09,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:09,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:09,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:09,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-26 22:32:09,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:09,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-26 22:32:09,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:09,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:09,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:09,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:09,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:09,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-26 22:32:09,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:09,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:09,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:09,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-26 22:32:09,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:09,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-26 22:32:09,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:09,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:09,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:09,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-26 22:32:09,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:09,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-10-26 22:32:09,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:09,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:09,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:09,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-26 22:32:09,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:09,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-26 22:32:09,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:09,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:09,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:09,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-26 22:32:09,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:09,567 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 266 proven. 2 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2020-10-26 22:32:09,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1983999355] [2020-10-26 22:32:09,568 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:09,568 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:32:09,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246239122] [2020-10-26 22:32:09,569 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:32:09,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:09,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:32:09,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:32:09,570 INFO L87 Difference]: Start difference. First operand 1648 states and 2037 transitions. Second operand 7 states. [2020-10-26 22:32:11,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:11,404 INFO L93 Difference]: Finished difference Result 3455 states and 4405 transitions. [2020-10-26 22:32:11,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 22:32:11,407 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 337 [2020-10-26 22:32:11,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:11,418 INFO L225 Difference]: With dead ends: 3455 [2020-10-26 22:32:11,418 INFO L226 Difference]: Without dead ends: 1956 [2020-10-26 22:32:11,423 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:32:11,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1956 states. [2020-10-26 22:32:11,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1956 to 1799. [2020-10-26 22:32:11,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1799 states. [2020-10-26 22:32:11,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1799 states to 1799 states and 2217 transitions. [2020-10-26 22:32:11,483 INFO L78 Accepts]: Start accepts. Automaton has 1799 states and 2217 transitions. Word has length 337 [2020-10-26 22:32:11,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:11,484 INFO L481 AbstractCegarLoop]: Abstraction has 1799 states and 2217 transitions. [2020-10-26 22:32:11,484 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:32:11,484 INFO L276 IsEmpty]: Start isEmpty. Operand 1799 states and 2217 transitions. [2020-10-26 22:32:11,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2020-10-26 22:32:11,492 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:11,493 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 22:32:11,493 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 22:32:11,493 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:11,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:11,494 INFO L82 PathProgramCache]: Analyzing trace with hash 1067930520, now seen corresponding path program 1 times [2020-10-26 22:32:11,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:11,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [520560092] [2020-10-26 22:32:11,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:11,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:11,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:11,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:12,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:13,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:13,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 363 [2020-10-26 22:32:13,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:32:13,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2203 [2020-10-26 22:32:13,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:13,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:13,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 233 [2020-10-26 22:32:13,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-26 22:32:13,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:13,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:13,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:13,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:13,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:13,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:13,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:13,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 22:32:13,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:13,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:13,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:13,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:13,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:13,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:13,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:13,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:13,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:13,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-26 22:32:13,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:13,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-26 22:32:13,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:13,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:13,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:13,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:13,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:13,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-26 22:32:13,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:14,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:14,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:14,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-26 22:32:14,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:14,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-26 22:32:14,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:14,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:14,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:14,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-26 22:32:14,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:14,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-10-26 22:32:14,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:14,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:14,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:14,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-26 22:32:14,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:14,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-26 22:32:14,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:14,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:14,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:14,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-26 22:32:14,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:14,411 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 271 proven. 2 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-26 22:32:14,412 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [520560092] [2020-10-26 22:32:14,412 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:14,412 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:32:14,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050164933] [2020-10-26 22:32:14,413 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:32:14,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:14,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:32:14,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:32:14,414 INFO L87 Difference]: Start difference. First operand 1799 states and 2217 transitions. Second operand 7 states. [2020-10-26 22:32:16,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:16,450 INFO L93 Difference]: Finished difference Result 4341 states and 5457 transitions. [2020-10-26 22:32:16,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 22:32:16,456 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 347 [2020-10-26 22:32:16,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:16,470 INFO L225 Difference]: With dead ends: 4341 [2020-10-26 22:32:16,470 INFO L226 Difference]: Without dead ends: 2691 [2020-10-26 22:32:16,475 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-26 22:32:16,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2691 states. [2020-10-26 22:32:16,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2691 to 2532. [2020-10-26 22:32:16,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2532 states. [2020-10-26 22:32:16,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2532 states to 2532 states and 3022 transitions. [2020-10-26 22:32:16,561 INFO L78 Accepts]: Start accepts. Automaton has 2532 states and 3022 transitions. Word has length 347 [2020-10-26 22:32:16,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:16,562 INFO L481 AbstractCegarLoop]: Abstraction has 2532 states and 3022 transitions. [2020-10-26 22:32:16,562 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:32:16,562 INFO L276 IsEmpty]: Start isEmpty. Operand 2532 states and 3022 transitions. [2020-10-26 22:32:16,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2020-10-26 22:32:16,572 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:16,572 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 22:32:16,572 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 22:32:16,573 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:16,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:16,573 INFO L82 PathProgramCache]: Analyzing trace with hash -1124363396, now seen corresponding path program 1 times [2020-10-26 22:32:16,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:16,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1787803987] [2020-10-26 22:32:16,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:16,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:16,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:16,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:18,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:18,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:18,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 372 [2020-10-26 22:32:18,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:32:18,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2104 [2020-10-26 22:32:18,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:18,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:18,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 242 [2020-10-26 22:32:18,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-26 22:32:18,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:18,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:18,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:18,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:18,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:18,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:18,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:18,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 22:32:18,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:18,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:18,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:18,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:18,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:18,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:18,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:18,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:18,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:18,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-26 22:32:18,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:18,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-26 22:32:18,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:18,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:18,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:18,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:18,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:19,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-26 22:32:19,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:19,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:19,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:19,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-26 22:32:19,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:19,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-26 22:32:19,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:19,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:19,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:19,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-26 22:32:19,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:19,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2020-10-26 22:32:19,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:19,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:19,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:19,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-26 22:32:19,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:19,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-26 22:32:19,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:19,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:19,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:19,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-26 22:32:19,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:19,498 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 271 proven. 2 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2020-10-26 22:32:19,499 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1787803987] [2020-10-26 22:32:19,499 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:19,499 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:32:19,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315917414] [2020-10-26 22:32:19,500 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:32:19,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:19,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:32:19,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:32:19,501 INFO L87 Difference]: Start difference. First operand 2532 states and 3022 transitions. Second operand 7 states. [2020-10-26 22:32:21,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:21,365 INFO L93 Difference]: Finished difference Result 5789 states and 7026 transitions. [2020-10-26 22:32:21,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 22:32:21,366 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 356 [2020-10-26 22:32:21,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:21,386 INFO L225 Difference]: With dead ends: 5789 [2020-10-26 22:32:21,386 INFO L226 Difference]: Without dead ends: 3406 [2020-10-26 22:32:21,392 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-26 22:32:21,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3406 states. [2020-10-26 22:32:21,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3406 to 3112. [2020-10-26 22:32:21,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3112 states. [2020-10-26 22:32:21,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3112 states to 3112 states and 3775 transitions. [2020-10-26 22:32:21,498 INFO L78 Accepts]: Start accepts. Automaton has 3112 states and 3775 transitions. Word has length 356 [2020-10-26 22:32:21,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:21,499 INFO L481 AbstractCegarLoop]: Abstraction has 3112 states and 3775 transitions. [2020-10-26 22:32:21,499 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:32:21,500 INFO L276 IsEmpty]: Start isEmpty. Operand 3112 states and 3775 transitions. [2020-10-26 22:32:21,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2020-10-26 22:32:21,507 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:21,508 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:32:21,508 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-26 22:32:21,508 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:21,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:21,509 INFO L82 PathProgramCache]: Analyzing trace with hash -1469829484, now seen corresponding path program 1 times [2020-10-26 22:32:21,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:21,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2074809447] [2020-10-26 22:32:21,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:21,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:21,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:21,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:21,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:24,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:26,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:26,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 382 [2020-10-26 22:32:26,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:32:26,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4751 [2020-10-26 22:32:26,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:26,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:32:26,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-26 22:32:26,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 212 [2020-10-26 22:32:26,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:32:26,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:26,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:26,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:26,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:26,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:26,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:26,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 22:32:26,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:26,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:26,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:26,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:26,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:26,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:26,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:26,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:26,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:26,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 22:32:26,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:26,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-26 22:32:26,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:26,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:26,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:26,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-26 22:32:26,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:26,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 22:32:26,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:26,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:26,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:26,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:26,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-26 22:32:26,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:32:26,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-26 22:32:26,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:26,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:26,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:26,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-26 22:32:26,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:26,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-26 22:32:26,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:27,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:27,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:27,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-26 22:32:27,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:27,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 198 [2020-10-26 22:32:27,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:27,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:27,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:27,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-26 22:32:27,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:27,704 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 380 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-26 22:32:27,705 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2074809447] [2020-10-26 22:32:27,705 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:27,705 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 22:32:27,705 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418358665] [2020-10-26 22:32:27,706 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 22:32:27,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:27,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 22:32:27,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-26 22:32:27,708 INFO L87 Difference]: Start difference. First operand 3112 states and 3775 transitions. Second operand 8 states. [2020-10-26 22:32:29,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:29,465 INFO L93 Difference]: Finished difference Result 6078 states and 7406 transitions. [2020-10-26 22:32:29,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 22:32:29,467 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 366 [2020-10-26 22:32:29,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:29,468 INFO L225 Difference]: With dead ends: 6078 [2020-10-26 22:32:29,468 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 22:32:29,479 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2020-10-26 22:32:29,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 22:32:29,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 22:32:29,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 22:32:29,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 22:32:29,481 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 366 [2020-10-26 22:32:29,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:29,481 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 22:32:29,481 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 22:32:29,481 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 22:32:29,482 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 22:32:29,482 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-26 22:32:29,484 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 22:32:30,111 WARN L193 SmtUtils]: Spent 579.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 156 [2020-10-26 22:32:31,054 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 156 [2020-10-26 22:32:31,606 WARN L193 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 37 [2020-10-26 22:32:32,257 WARN L193 SmtUtils]: Spent 641.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 48 [2020-10-26 22:32:32,495 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 31 [2020-10-26 22:32:32,963 WARN L193 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 37 [2020-10-26 22:32:32,967 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-26 22:32:32,967 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-26 22:32:32,967 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-26 22:32:32,967 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-26 22:32:32,968 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-26 22:32:32,968 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~inputB~0 |old(~inputB~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~a4~0 |old(~a4~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a10~0 |old(~a10~0)|)) [2020-10-26 22:32:32,968 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-26 22:32:32,969 INFO L274 CegarLoopResult]: For program point L531(lines 531 574) no Hoare annotation was computed. [2020-10-26 22:32:32,969 INFO L274 CegarLoopResult]: For program point L432(lines 432 574) no Hoare annotation was computed. [2020-10-26 22:32:32,969 INFO L274 CegarLoopResult]: For program point L267(lines 267 574) no Hoare annotation was computed. [2020-10-26 22:32:32,969 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-26 22:32:32,969 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-26 22:32:32,969 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-26 22:32:32,969 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-26 22:32:32,969 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-26 22:32:32,969 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-26 22:32:32,970 INFO L274 CegarLoopResult]: For program point L565(lines 565 574) no Hoare annotation was computed. [2020-10-26 22:32:32,970 INFO L274 CegarLoopResult]: For program point L400(lines 400 574) no Hoare annotation was computed. [2020-10-26 22:32:32,970 INFO L274 CegarLoopResult]: For program point L367(lines 367 574) no Hoare annotation was computed. [2020-10-26 22:32:32,970 INFO L274 CegarLoopResult]: For program point L467(lines 467 574) no Hoare annotation was computed. [2020-10-26 22:32:32,970 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,970 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,970 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,970 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,970 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,971 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,971 INFO L274 CegarLoopResult]: For program point L501(lines 501 574) no Hoare annotation was computed. [2020-10-26 22:32:32,971 INFO L274 CegarLoopResult]: For program point L303(lines 303 574) no Hoare annotation was computed. [2020-10-26 22:32:32,971 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-26 22:32:32,971 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-26 22:32:32,971 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-26 22:32:32,971 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-26 22:32:32,971 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-26 22:32:32,971 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-26 22:32:32,971 INFO L274 CegarLoopResult]: For program point L337(lines 337 574) no Hoare annotation was computed. [2020-10-26 22:32:32,971 INFO L274 CegarLoopResult]: For program point L238(lines 238 574) no Hoare annotation was computed. [2020-10-26 22:32:32,971 INFO L274 CegarLoopResult]: For program point L536(lines 536 574) no Hoare annotation was computed. [2020-10-26 22:32:32,972 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,972 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,972 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,972 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,972 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,972 INFO L274 CegarLoopResult]: For program point L438(lines 438 574) no Hoare annotation was computed. [2020-10-26 22:32:32,972 INFO L274 CegarLoopResult]: For program point L405(lines 405 574) no Hoare annotation was computed. [2020-10-26 22:32:32,972 INFO L274 CegarLoopResult]: For program point L372(lines 372 574) no Hoare annotation was computed. [2020-10-26 22:32:32,972 INFO L274 CegarLoopResult]: For program point L273(lines 273 574) no Hoare annotation was computed. [2020-10-26 22:32:32,972 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-26 22:32:32,973 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-26 22:32:32,973 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-26 22:32:32,973 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-26 22:32:32,973 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-26 22:32:32,973 INFO L274 CegarLoopResult]: For program point L571(lines 571 574) no Hoare annotation was computed. [2020-10-26 22:32:32,973 INFO L274 CegarLoopResult]: For program point L241(lines 241 574) no Hoare annotation was computed. [2020-10-26 22:32:32,973 INFO L274 CegarLoopResult]: For program point L506(lines 506 574) no Hoare annotation was computed. [2020-10-26 22:32:32,973 INFO L274 CegarLoopResult]: For program point L473(lines 473 574) no Hoare annotation was computed. [2020-10-26 22:32:32,973 INFO L274 CegarLoopResult]: For program point L308(lines 308 574) no Hoare annotation was computed. [2020-10-26 22:32:32,973 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,973 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,974 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,974 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,974 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,974 INFO L274 CegarLoopResult]: For program point L342(lines 342 574) no Hoare annotation was computed. [2020-10-26 22:32:32,974 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-26 22:32:32,974 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-26 22:32:32,974 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-26 22:32:32,974 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-26 22:32:32,974 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-26 22:32:32,974 INFO L274 CegarLoopResult]: For program point L542(lines 542 574) no Hoare annotation was computed. [2020-10-26 22:32:32,974 INFO L274 CegarLoopResult]: For program point L410(lines 410 574) no Hoare annotation was computed. [2020-10-26 22:32:32,974 INFO L274 CegarLoopResult]: For program point L377(lines 377 574) no Hoare annotation was computed. [2020-10-26 22:32:32,975 INFO L274 CegarLoopResult]: For program point L212(lines 212 574) no Hoare annotation was computed. [2020-10-26 22:32:32,975 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,975 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,975 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,975 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,975 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,975 INFO L274 CegarLoopResult]: For program point L444(lines 444 574) no Hoare annotation was computed. [2020-10-26 22:32:32,975 INFO L274 CegarLoopResult]: For program point L279(lines 279 574) no Hoare annotation was computed. [2020-10-26 22:32:32,975 INFO L274 CegarLoopResult]: For program point L246(lines 246 574) no Hoare annotation was computed. [2020-10-26 22:32:32,975 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-26 22:32:32,975 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-26 22:32:32,976 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-26 22:32:32,976 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-26 22:32:32,976 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-26 22:32:32,976 INFO L274 CegarLoopResult]: For program point L511(lines 511 574) no Hoare annotation was computed. [2020-10-26 22:32:32,976 INFO L274 CegarLoopResult]: For program point L478(lines 478 574) no Hoare annotation was computed. [2020-10-26 22:32:32,976 INFO L274 CegarLoopResult]: For program point L380(lines 380 574) no Hoare annotation was computed. [2020-10-26 22:32:32,976 INFO L274 CegarLoopResult]: For program point L347(lines 347 574) no Hoare annotation was computed. [2020-10-26 22:32:32,976 INFO L274 CegarLoopResult]: For program point L314(lines 314 574) no Hoare annotation was computed. [2020-10-26 22:32:32,976 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,977 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,977 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,977 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,977 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,977 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-26 22:32:32,977 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-26 22:32:32,977 INFO L270 CegarLoopResult]: At program point L117(line 117) the Hoare annotation is: (let ((.cse0 (= 7 |old(~a19~0)|))) (and (or .cse0 (not (= 3 |old(~a10~0)|))) (or .cse0 (not (= 0 |old(~a10~0)|))) (not (= |old(~a10~0)| 1)) (not (= 9 |old(~a19~0)|)) (not (= 2 |old(~a10~0)|)) (not (= 8 |old(~a19~0)|)) (or .cse0 (not (<= (+ |old(~a1~0)| 75821) 0))))) [2020-10-26 22:32:32,977 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-26 22:32:32,977 INFO L274 CegarLoopResult]: For program point L117-1(line 117) no Hoare annotation was computed. [2020-10-26 22:32:32,978 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-26 22:32:32,978 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,978 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,978 INFO L274 CegarLoopResult]: For program point L547(lines 547 574) no Hoare annotation was computed. [2020-10-26 22:32:32,978 INFO L274 CegarLoopResult]: For program point L217(lines 217 574) no Hoare annotation was computed. [2020-10-26 22:32:32,978 INFO L274 CegarLoopResult]: For program point L416(lines 416 574) no Hoare annotation was computed. [2020-10-26 22:32:32,978 INFO L274 CegarLoopResult]: For program point L251(lines 251 574) no Hoare annotation was computed. [2020-10-26 22:32:32,978 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,978 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,978 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,979 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,979 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,979 INFO L274 CegarLoopResult]: For program point L516(lines 516 574) no Hoare annotation was computed. [2020-10-26 22:32:32,979 INFO L274 CegarLoopResult]: For program point L483(lines 483 574) no Hoare annotation was computed. [2020-10-26 22:32:32,979 INFO L274 CegarLoopResult]: For program point L450(lines 450 574) no Hoare annotation was computed. [2020-10-26 22:32:32,979 INFO L274 CegarLoopResult]: For program point L285(lines 285 574) no Hoare annotation was computed. [2020-10-26 22:32:32,979 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-26 22:32:32,979 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-26 22:32:32,979 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-26 22:32:32,979 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-26 22:32:32,980 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-26 22:32:32,980 INFO L274 CegarLoopResult]: For program point L550(lines 550 574) no Hoare annotation was computed. [2020-10-26 22:32:32,980 INFO L274 CegarLoopResult]: For program point L385(lines 385 574) no Hoare annotation was computed. [2020-10-26 22:32:32,983 INFO L274 CegarLoopResult]: For program point L319(lines 319 574) no Hoare annotation was computed. [2020-10-26 22:32:32,983 INFO L274 CegarLoopResult]: For program point L353(lines 353 574) no Hoare annotation was computed. [2020-10-26 22:32:32,983 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,983 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,983 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,983 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,983 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-26 22:32:32,984 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,984 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,984 INFO L274 CegarLoopResult]: For program point L519(lines 519 574) no Hoare annotation was computed. [2020-10-26 22:32:32,984 INFO L274 CegarLoopResult]: For program point L288(lines 288 574) no Hoare annotation was computed. [2020-10-26 22:32:32,984 INFO L274 CegarLoopResult]: For program point L222(lines 222 574) no Hoare annotation was computed. [2020-10-26 22:32:32,984 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-26 22:32:32,984 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-26 22:32:32,984 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-26 22:32:32,984 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-26 22:32:32,984 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-26 22:32:32,985 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-26 22:32:32,985 INFO L274 CegarLoopResult]: For program point L421(lines 421 574) no Hoare annotation was computed. [2020-10-26 22:32:32,985 INFO L274 CegarLoopResult]: For program point L322(lines 322 574) no Hoare annotation was computed. [2020-10-26 22:32:32,985 INFO L274 CegarLoopResult]: For program point L256(lines 256 574) no Hoare annotation was computed. [2020-10-26 22:32:32,985 INFO L274 CegarLoopResult]: For program point L356(lines 356 574) no Hoare annotation was computed. [2020-10-26 22:32:32,985 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,986 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,986 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,986 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,986 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,986 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,986 INFO L274 CegarLoopResult]: For program point L489(lines 489 574) no Hoare annotation was computed. [2020-10-26 22:32:32,986 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 576) the Hoare annotation is: (let ((.cse3 (= ~a1~0 |old(~a1~0)|)) (.cse4 (= ~a19~0 |old(~a19~0)|)) (.cse5 (= ~a10~0 |old(~a10~0)|))) (let ((.cse1 (and (not (= 7 ~a19~0)) .cse3 .cse4 .cse5)) (.cse0 (= 7 |old(~a19~0)|)) (.cse2 (and .cse3 .cse4 .cse5))) (and (or .cse0 (not (= 3 |old(~a10~0)|)) .cse1) (or (not (= 9 |old(~a19~0)|)) .cse2) (or .cse2 (not (= |old(~a10~0)| 1))) (or .cse1 (not (= 8 |old(~a19~0)|))) (or .cse0 (not (<= (+ |old(~a1~0)| 75821) 0)) .cse1) (or .cse2 (not (= 2 |old(~a10~0)|))) (or .cse0 .cse2 (not (= 0 |old(~a10~0)|)))))) [2020-10-26 22:32:32,986 INFO L274 CegarLoopResult]: For program point L456(lines 456 574) no Hoare annotation was computed. [2020-10-26 22:32:32,987 INFO L274 CegarLoopResult]: For program point L390(lines 390 574) no Hoare annotation was computed. [2020-10-26 22:32:32,987 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-26 22:32:32,987 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-26 22:32:32,987 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-26 22:32:32,987 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-26 22:32:32,987 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-26 22:32:32,987 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-26 22:32:32,987 INFO L274 CegarLoopResult]: For program point L556(lines 556 574) no Hoare annotation was computed. [2020-10-26 22:32:32,987 INFO L274 CegarLoopResult]: For program point L325(lines 325 574) no Hoare annotation was computed. [2020-10-26 22:32:32,987 INFO L274 CegarLoopResult]: For program point L359(lines 359 574) no Hoare annotation was computed. [2020-10-26 22:32:32,987 INFO L274 CegarLoopResult]: For program point L293(lines 293 574) no Hoare annotation was computed. [2020-10-26 22:32:32,988 INFO L274 CegarLoopResult]: For program point L227(lines 227 574) no Hoare annotation was computed. [2020-10-26 22:32:32,988 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,988 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,988 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,988 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,988 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,988 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,988 INFO L274 CegarLoopResult]: For program point L525(lines 525 574) no Hoare annotation was computed. [2020-10-26 22:32:32,988 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-26 22:32:32,988 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-26 22:32:32,988 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-26 22:32:32,989 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-26 22:32:32,989 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-26 22:32:32,989 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-26 22:32:32,989 INFO L274 CegarLoopResult]: For program point L559(lines 559 574) no Hoare annotation was computed. [2020-10-26 22:32:32,989 INFO L274 CegarLoopResult]: For program point L427(lines 427 574) no Hoare annotation was computed. [2020-10-26 22:32:32,989 INFO L274 CegarLoopResult]: For program point L328(lines 328 574) no Hoare annotation was computed. [2020-10-26 22:32:32,989 INFO L274 CegarLoopResult]: For program point L262(lines 262 574) no Hoare annotation was computed. [2020-10-26 22:32:32,989 INFO L274 CegarLoopResult]: For program point L395(lines 395 574) no Hoare annotation was computed. [2020-10-26 22:32:32,989 INFO L274 CegarLoopResult]: For program point L362(lines 362 574) no Hoare annotation was computed. [2020-10-26 22:32:32,989 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,990 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,990 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,991 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,991 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,992 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,992 INFO L274 CegarLoopResult]: For program point L528(lines 528 574) no Hoare annotation was computed. [2020-10-26 22:32:32,992 INFO L274 CegarLoopResult]: For program point L495(lines 495 574) no Hoare annotation was computed. [2020-10-26 22:32:32,992 INFO L274 CegarLoopResult]: For program point L462(lines 462 574) no Hoare annotation was computed. [2020-10-26 22:32:32,992 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-26 22:32:32,992 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-26 22:32:32,992 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-26 22:32:32,992 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-26 22:32:32,992 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-26 22:32:32,993 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-26 22:32:32,993 INFO L274 CegarLoopResult]: For program point L331(lines 331 574) no Hoare annotation was computed. [2020-10-26 22:32:32,993 INFO L274 CegarLoopResult]: For program point L298(lines 298 574) no Hoare annotation was computed. [2020-10-26 22:32:32,993 INFO L274 CegarLoopResult]: For program point L233(lines 233 574) no Hoare annotation was computed. [2020-10-26 22:32:32,993 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,993 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,993 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,993 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,993 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,993 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:32,994 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 22:32:32,994 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= 23 ~a1~0) (= ~a10~0 0) (= ~a19~0 9) (<= ~a1~0 23)) [2020-10-26 22:32:32,994 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-26 22:32:32,994 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 22:32:32,994 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 578 594) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (and (<= 23 ~a1~0) (<= ~a1~0 23) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (not (= 0 |old(~a10~0)|))) [2020-10-26 22:32:32,994 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 578 594) no Hoare annotation was computed. [2020-10-26 22:32:32,994 INFO L270 CegarLoopResult]: At program point L592(line 592) the Hoare annotation is: (let ((.cse0 (not (= 7 ~a19~0)))) (or (= ~a19~0 8) (not (<= 23 |old(~a1~0)|)) (= ~a10~0 1) (and .cse0 (<= (+ ~a1~0 75821) 0)) (not (= 9 |old(~a19~0)|)) (= ~a10~0 2) (not (<= |old(~a1~0)| 23)) (= ~a19~0 9) (not (= 0 |old(~a10~0)|)) (and (= ~a10~0 3) .cse0) (and (= ~a10~0 0) .cse0))) [2020-10-26 22:32:32,994 INFO L274 CegarLoopResult]: For program point L592-1(line 592) no Hoare annotation was computed. [2020-10-26 22:32:32,995 INFO L274 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-26 22:32:32,995 INFO L270 CegarLoopResult]: At program point L584-2(lines 584 593) the Hoare annotation is: (let ((.cse0 (not (= 7 ~a19~0)))) (or (= ~a19~0 8) (not (<= 23 |old(~a1~0)|)) (= ~a10~0 1) (and .cse0 (<= (+ ~a1~0 75821) 0)) (not (= 9 |old(~a19~0)|)) (= ~a10~0 2) (not (<= |old(~a1~0)| 23)) (= ~a19~0 9) (not (= 0 |old(~a10~0)|)) (and (= ~a10~0 3) .cse0) (and (= ~a10~0 0) .cse0))) [2020-10-26 22:32:32,995 INFO L274 CegarLoopResult]: For program point L584-3(lines 578 594) no Hoare annotation was computed. [2020-10-26 22:32:33,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 10:32:33 BoogieIcfgContainer [2020-10-26 22:32:33,023 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 22:32:33,031 INFO L168 Benchmark]: Toolchain (without parser) took 69670.95 ms. Allocated memory was 162.5 MB in the beginning and 1.0 GB in the end (delta: 856.7 MB). Free memory was 137.2 MB in the beginning and 432.2 MB in the end (delta: -295.0 MB). Peak memory consumption was 561.9 MB. Max. memory is 8.0 GB. [2020-10-26 22:32:33,031 INFO L168 Benchmark]: CDTParser took 0.65 ms. Allocated memory is still 162.5 MB. Free memory was 134.7 MB in the beginning and 134.6 MB in the end (delta: 102.1 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 22:32:33,033 INFO L168 Benchmark]: CACSL2BoogieTranslator took 811.37 ms. Allocated memory is still 162.5 MB. Free memory was 136.6 MB in the beginning and 109.5 MB in the end (delta: 27.1 MB). Peak memory consumption was 27.3 MB. Max. memory is 8.0 GB. [2020-10-26 22:32:33,033 INFO L168 Benchmark]: Boogie Preprocessor took 146.09 ms. Allocated memory is still 162.5 MB. Free memory was 109.5 MB in the beginning and 141.2 MB in the end (delta: -31.7 MB). Peak memory consumption was 5.1 MB. Max. memory is 8.0 GB. [2020-10-26 22:32:33,037 INFO L168 Benchmark]: RCFGBuilder took 1416.09 ms. Allocated memory was 162.5 MB in the beginning and 213.9 MB in the end (delta: 51.4 MB). Free memory was 140.6 MB in the beginning and 178.5 MB in the end (delta: -37.9 MB). Peak memory consumption was 92.3 MB. Max. memory is 8.0 GB. [2020-10-26 22:32:33,044 INFO L168 Benchmark]: TraceAbstraction took 67282.79 ms. Allocated memory was 213.9 MB in the beginning and 1.0 GB in the end (delta: 805.3 MB). Free memory was 178.0 MB in the beginning and 432.7 MB in the end (delta: -254.7 MB). Peak memory consumption was 550.6 MB. Max. memory is 8.0 GB. [2020-10-26 22:32:33,052 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.65 ms. Allocated memory is still 162.5 MB. Free memory was 134.7 MB in the beginning and 134.6 MB in the end (delta: 102.1 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 811.37 ms. Allocated memory is still 162.5 MB. Free memory was 136.6 MB in the beginning and 109.5 MB in the end (delta: 27.1 MB). Peak memory consumption was 27.3 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 146.09 ms. Allocated memory is still 162.5 MB. Free memory was 109.5 MB in the beginning and 141.2 MB in the end (delta: -31.7 MB). Peak memory consumption was 5.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1416.09 ms. Allocated memory was 162.5 MB in the beginning and 213.9 MB in the end (delta: 51.4 MB). Free memory was 140.6 MB in the beginning and 178.5 MB in the end (delta: -37.9 MB). Peak memory consumption was 92.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 67282.79 ms. Allocated memory was 213.9 MB in the beginning and 1.0 GB in the end (delta: 805.3 MB). Free memory was 178.0 MB in the beginning and 432.7 MB in the end (delta: -254.7 MB). Peak memory consumption was 550.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 584]: Loop Invariant Derived loop invariant: (((((((((a19 == 8 || !(23 <= \old(a1))) || a10 == 1) || (!(7 == a19) && a1 + 75821 <= 0)) || !(9 == \old(a19))) || a10 == 2) || !(\old(a1) <= 23)) || a19 == 9) || !(0 == \old(a10))) || (a10 == 3 && !(7 == a19))) || (a10 == 0 && !(7 == a19)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 219 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 63.6s, OverallIterations: 12, TraceHistogramMax: 4, AutomataDifference: 23.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 344 SDtfs, 5322 SDslu, 462 SDs, 0 SdLazy, 11907 SolverSat, 1988 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 219 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3112occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 12 MinimizatonAttempts, 1394 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 278 PreInvPairs, 340 NumberOfFragments, 388 HoareAnnotationTreeSize, 278 FomulaSimplifications, 366731 FormulaSimplificationTreeSizeReduction, 1.5s HoareSimplificationTime, 9 FomulaSimplificationsInter, 64747 FormulaSimplificationTreeSizeReductionInter, 1.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 36.4s InterpolantComputationTime, 2975 NumberOfCodeBlocks, 2975 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 2963 ConstructedInterpolants, 0 QuantifiedInterpolants, 2332666 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 3 PerfectInterpolantSequences, 2407/2647 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...