/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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/Problem11_label06.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 12:02:20,755 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 12:02:20,758 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 12:02:20,795 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 12:02:20,796 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 12:02:20,797 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 12:02:20,799 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 12:02:20,802 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 12:02:20,804 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 12:02:20,806 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 12:02:20,807 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 12:02:20,809 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 12:02:20,809 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 12:02:20,811 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 12:02:20,813 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 12:02:20,815 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 12:02:20,816 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 12:02:20,818 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 12:02:20,820 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 12:02:20,836 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 12:02:20,838 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 12:02:20,840 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 12:02:20,842 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 12:02:20,843 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 12:02:20,847 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 12:02:20,847 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 12:02:20,848 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 12:02:20,849 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 12:02:20,850 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 12:02:20,851 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 12:02:20,852 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 12:02:20,853 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 12:02:20,854 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 12:02:20,855 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 12:02:20,857 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 12:02:20,858 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 12:02:20,859 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 12:02:20,859 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 12:02:20,860 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 12:02:20,861 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 12:02:20,862 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 12:02:20,868 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 [2020-10-28 12:02:20,925 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 12:02:20,925 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 12:02:20,927 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 12:02:20,927 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 12:02:20,928 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 12:02:20,928 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 12:02:20,928 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 12:02:20,928 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 12:02:20,929 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 12:02:20,929 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 12:02:20,929 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 12:02:20,929 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 12:02:20,930 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 12:02:20,930 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 12:02:20,930 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 12:02:20,931 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 12:02:20,931 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 12:02:20,931 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 12:02:20,931 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 12:02:20,932 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 12:02:20,932 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 12:02:20,932 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 12:02:20,933 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 12:02:20,933 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 12:02:20,933 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 12:02:20,933 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 12:02:20,934 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 12:02:20,934 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 12:02:20,934 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 12:02:20,935 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 12:02:21,325 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 12:02:21,366 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 12:02:21,370 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 12:02:21,371 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 12:02:21,372 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 12:02:21,374 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label06.c [2020-10-28 12:02:21,471 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2cd47d8b6/5ee97a7b608542d18e98e077abd24b8c/FLAG1865fee09 [2020-10-28 12:02:22,379 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 12:02:22,380 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem11_label06.c [2020-10-28 12:02:22,411 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2cd47d8b6/5ee97a7b608542d18e98e077abd24b8c/FLAG1865fee09 [2020-10-28 12:02:22,431 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2cd47d8b6/5ee97a7b608542d18e98e077abd24b8c [2020-10-28 12:02:22,435 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 12:02:22,443 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 12:02:22,450 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 12:02:22,450 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 12:02:22,454 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 12:02:22,455 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 12:02:22" (1/1) ... [2020-10-28 12:02:22,459 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bf315d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:02:22, skipping insertion in model container [2020-10-28 12:02:22,459 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 12:02:22" (1/1) ... [2020-10-28 12:02:22,468 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 12:02:22,550 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 12:02:23,095 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 12:02:23,146 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 12:02:23,418 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 12:02:23,439 INFO L208 MainTranslator]: Completed translation [2020-10-28 12:02:23,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:02:23 WrapperNode [2020-10-28 12:02:23,440 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 12:02:23,442 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 12:02:23,442 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 12:02:23,442 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 12:02:23,457 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:02:23" (1/1) ... [2020-10-28 12:02:23,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:02:23" (1/1) ... [2020-10-28 12:02:23,515 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:02:23" (1/1) ... [2020-10-28 12:02:23,515 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:02:23" (1/1) ... [2020-10-28 12:02:23,593 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:02:23" (1/1) ... [2020-10-28 12:02:23,610 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:02:23" (1/1) ... [2020-10-28 12:02:23,620 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:02:23" (1/1) ... [2020-10-28 12:02:23,638 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 12:02:23,639 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 12:02:23,640 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 12:02:23,640 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 12:02:23,642 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:02:23" (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 [2020-10-28 12:02:23,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 12:02:23,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 12:02:23,725 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 12:02:23,725 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-28 12:02:23,725 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 12:02:23,726 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-28 12:02:23,726 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 12:02:23,726 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 12:02:23,726 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 12:02:23,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 12:02:23,726 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 12:02:23,727 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-28 12:02:23,727 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 12:02:23,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 12:02:23,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 12:02:23,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 12:02:23,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 12:02:23,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 12:02:23,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 12:02:25,968 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 12:02:25,969 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 12:02:25,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 12:02:25 BoogieIcfgContainer [2020-10-28 12:02:25,972 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 12:02:25,974 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 12:02:25,974 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 12:02:25,977 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 12:02:25,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 12:02:22" (1/3) ... [2020-10-28 12:02:25,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cbd85bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 12:02:25, skipping insertion in model container [2020-10-28 12:02:25,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:02:23" (2/3) ... [2020-10-28 12:02:25,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cbd85bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 12:02:25, skipping insertion in model container [2020-10-28 12:02:25,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 12:02:25" (3/3) ... [2020-10-28 12:02:25,981 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label06.c [2020-10-28 12:02:25,994 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 12:02:26,000 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 12:02:26,015 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 12:02:26,049 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 12:02:26,049 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 12:02:26,049 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 12:02:26,049 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 12:02:26,049 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 12:02:26,050 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 12:02:26,050 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 12:02:26,050 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 12:02:26,077 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states. [2020-10-28 12:02:26,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-28 12:02:26,089 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:02:26,090 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:02:26,091 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:02:26,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:02:26,098 INFO L82 PathProgramCache]: Analyzing trace with hash -1896184136, now seen corresponding path program 1 times [2020-10-28 12:02:26,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:02:26,110 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [246224057] [2020-10-28 12:02:26,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:02:26,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:02:26,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:02:27,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:02:27,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-28 12:02:27,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:02:27,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 763 [2020-10-28 12:02:27,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:02:27,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:02:27,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:02:27,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:02:27,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-28 12:02:27,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-28 12:02:27,392 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-10-28 12:02:27,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:02:27,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:02:27,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:02:27,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:02:27,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:02:27,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:02:27,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-28 12:02:27,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:02:27,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:02:27,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:02:27,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:02:27,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:02:27,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:02:27,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:02:27,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [246224057] [2020-10-28 12:02:27,524 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:02:27,524 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 12:02:27,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248374863] [2020-10-28 12:02:27,531 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 12:02:27,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:02:27,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 12:02:27,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 12:02:27,556 INFO L87 Difference]: Start difference. First operand 296 states. Second operand 4 states. [2020-10-28 12:02:27,773 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-10-28 12:02:30,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:02:30,947 INFO L93 Difference]: Finished difference Result 793 states and 1388 transitions. [2020-10-28 12:02:30,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:02:30,953 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 70 [2020-10-28 12:02:30,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:02:30,971 INFO L225 Difference]: With dead ends: 793 [2020-10-28 12:02:30,972 INFO L226 Difference]: Without dead ends: 432 [2020-10-28 12:02:30,982 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:02:31,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2020-10-28 12:02:31,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 426. [2020-10-28 12:02:31,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 426 states. [2020-10-28 12:02:31,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 613 transitions. [2020-10-28 12:02:31,071 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 613 transitions. Word has length 70 [2020-10-28 12:02:31,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:02:31,072 INFO L481 AbstractCegarLoop]: Abstraction has 426 states and 613 transitions. [2020-10-28 12:02:31,072 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 12:02:31,072 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 613 transitions. [2020-10-28 12:02:31,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-10-28 12:02:31,080 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:02:31,080 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, 2, 2, 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] [2020-10-28 12:02:31,081 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 12:02:31,081 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:02:31,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:02:31,082 INFO L82 PathProgramCache]: Analyzing trace with hash -1520328204, now seen corresponding path program 1 times [2020-10-28 12:02:31,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:02:31,082 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1991597407] [2020-10-28 12:02:31,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:02:31,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:02:31,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:02:31,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:02:32,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:02:33,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:02:33,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-28 12:02:33,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:02:33,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2031 [2020-10-28 12:02:33,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:02:33,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:02:33,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:02:33,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:02:33,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-28 12:02:33,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:02:33,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:02:33,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:02:33,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:02:33,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:02:33,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:02:33,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:02:33,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 12:02:33,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:02:33,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:02:33,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:02:33,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:02:33,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:02:33,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-28 12:02:33,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:02:33,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:02:33,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:02:33,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:02:33,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 12:02:33,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:02:33,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 189 [2020-10-28 12:02:33,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:02:33,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:02:33,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:02:33,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:02:33,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-28 12:02:33,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:02:33,749 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:02:33,749 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1991597407] [2020-10-28 12:02:33,749 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:02:33,750 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 12:02:33,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768800822] [2020-10-28 12:02:33,752 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:02:33,753 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:02:33,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:02:33,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:02:33,755 INFO L87 Difference]: Start difference. First operand 426 states and 613 transitions. Second operand 7 states. [2020-10-28 12:02:37,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:02:37,791 INFO L93 Difference]: Finished difference Result 1312 states and 1985 transitions. [2020-10-28 12:02:37,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:02:37,791 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 142 [2020-10-28 12:02:37,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:02:37,802 INFO L225 Difference]: With dead ends: 1312 [2020-10-28 12:02:37,802 INFO L226 Difference]: Without dead ends: 892 [2020-10-28 12:02:37,805 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:02:37,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 892 states. [2020-10-28 12:02:37,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 892 to 823. [2020-10-28 12:02:37,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 823 states. [2020-10-28 12:02:37,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 823 states to 823 states and 1103 transitions. [2020-10-28 12:02:37,889 INFO L78 Accepts]: Start accepts. Automaton has 823 states and 1103 transitions. Word has length 142 [2020-10-28 12:02:37,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:02:37,892 INFO L481 AbstractCegarLoop]: Abstraction has 823 states and 1103 transitions. [2020-10-28 12:02:37,892 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:02:37,892 INFO L276 IsEmpty]: Start isEmpty. Operand 823 states and 1103 transitions. [2020-10-28 12:02:37,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-28 12:02:37,904 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:02:37,904 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, 2, 2, 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] [2020-10-28 12:02:37,905 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 12:02:37,905 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:02:37,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:02:37,908 INFO L82 PathProgramCache]: Analyzing trace with hash -731498524, now seen corresponding path program 1 times [2020-10-28 12:02:37,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:02:37,909 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1522134619] [2020-10-28 12:02:37,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:02:37,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:02:38,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:02:38,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:02:39,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:02:39,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:02:40,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:02:40,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 162 [2020-10-28 12:02:40,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:02:40,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2068 [2020-10-28 12:02:40,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:02:40,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:02:40,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:02:40,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:02:40,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-28 12:02:40,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:02:40,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:02:40,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:02:40,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:02:40,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:02:40,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:02:40,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:02:40,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 12:02:40,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:02:40,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:02:40,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:02:40,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:02:40,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:02:40,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:02:40,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:02:40,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:02:40,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:02:40,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:02:40,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 12:02:40,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:02:40,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-28 12:02:40,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:02:40,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:02:40,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:02:40,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:02:40,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-28 12:02:40,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:02:40,525 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:02:40,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1522134619] [2020-10-28 12:02:40,526 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:02:40,526 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 12:02:40,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136088788] [2020-10-28 12:02:40,528 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:02:40,529 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:02:40,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:02:40,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:02:40,530 INFO L87 Difference]: Start difference. First operand 823 states and 1103 transitions. Second operand 7 states. [2020-10-28 12:02:43,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:02:43,862 INFO L93 Difference]: Finished difference Result 2067 states and 2734 transitions. [2020-10-28 12:02:43,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 12:02:43,864 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 150 [2020-10-28 12:02:43,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:02:43,872 INFO L225 Difference]: With dead ends: 2067 [2020-10-28 12:02:43,872 INFO L226 Difference]: Without dead ends: 1250 [2020-10-28 12:02:43,875 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-28 12:02:43,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2020-10-28 12:02:43,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1217. [2020-10-28 12:02:43,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1217 states. [2020-10-28 12:02:43,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1217 states to 1217 states and 1539 transitions. [2020-10-28 12:02:43,932 INFO L78 Accepts]: Start accepts. Automaton has 1217 states and 1539 transitions. Word has length 150 [2020-10-28 12:02:43,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:02:43,935 INFO L481 AbstractCegarLoop]: Abstraction has 1217 states and 1539 transitions. [2020-10-28 12:02:43,940 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:02:43,940 INFO L276 IsEmpty]: Start isEmpty. Operand 1217 states and 1539 transitions. [2020-10-28 12:02:43,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-10-28 12:02:43,944 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:02:43,945 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, 2, 2, 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] [2020-10-28 12:02:43,945 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 12:02:43,945 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:02:43,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:02:43,947 INFO L82 PathProgramCache]: Analyzing trace with hash 720472939, now seen corresponding path program 1 times [2020-10-28 12:02:43,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:02:43,950 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1202135613] [2020-10-28 12:02:43,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:02:44,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:02:44,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:02:44,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:02:44,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-10-28 12:02:44,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:02:44,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 522 [2020-10-28 12:02:44,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:02:44,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:02:44,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:02:44,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-28 12:02:44,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-28 12:02:44,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:02:44,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:02:44,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:02:44,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:02:44,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:02:44,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:02:44,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:02:44,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 12:02:44,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:02:44,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:02:44,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:02:44,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:02:44,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:02:44,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:02:44,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:02:44,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:02:44,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:02:44,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:02:44,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-28 12:02:44,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:02:44,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-10-28 12:02:44,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:02:44,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:02:44,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:02:44,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:02:44,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-28 12:02:44,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:02:45,097 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 61 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:02:45,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1202135613] [2020-10-28 12:02:45,098 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:02:45,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 12:02:45,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274772370] [2020-10-28 12:02:45,099 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 12:02:45,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:02:45,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 12:02:45,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:02:45,113 INFO L87 Difference]: Start difference. First operand 1217 states and 1539 transitions. Second operand 5 states. [2020-10-28 12:02:47,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:02:47,990 INFO L93 Difference]: Finished difference Result 2460 states and 3293 transitions. [2020-10-28 12:02:47,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:02:47,991 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 201 [2020-10-28 12:02:47,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:02:48,006 INFO L225 Difference]: With dead ends: 2460 [2020-10-28 12:02:48,007 INFO L226 Difference]: Without dead ends: 1627 [2020-10-28 12:02:48,011 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 12:02:48,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1627 states. [2020-10-28 12:02:48,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1627 to 1611. [2020-10-28 12:02:48,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1611 states. [2020-10-28 12:02:48,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1611 states to 1611 states and 2043 transitions. [2020-10-28 12:02:48,079 INFO L78 Accepts]: Start accepts. Automaton has 1611 states and 2043 transitions. Word has length 201 [2020-10-28 12:02:48,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:02:48,083 INFO L481 AbstractCegarLoop]: Abstraction has 1611 states and 2043 transitions. [2020-10-28 12:02:48,083 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 12:02:48,083 INFO L276 IsEmpty]: Start isEmpty. Operand 1611 states and 2043 transitions. [2020-10-28 12:02:48,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2020-10-28 12:02:48,090 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:02:48,090 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:02:48,090 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 12:02:48,091 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:02:48,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:02:48,092 INFO L82 PathProgramCache]: Analyzing trace with hash 1630802622, now seen corresponding path program 1 times [2020-10-28 12:02:48,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:02:48,093 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1474801468] [2020-10-28 12:02:48,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:02:48,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:02:48,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:02:48,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:02:48,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:02:50,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:02:53,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:02:53,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 273 [2020-10-28 12:02:53,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:02:53,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-28 12:02:53,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:02:53,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:02:53,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:02:53,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-28 12:02:53,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-28 12:02:53,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:02:53,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:02:53,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:02:53,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:02:53,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:02:53,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:02:53,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:02:53,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 12:02:53,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:02:53,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:02:53,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:02:53,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:02:53,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:02:53,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 12:02:53,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:02:53,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:02:53,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:02:53,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:02:53,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-28 12:02:53,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:02:53,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-28 12:02:53,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:02:53,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:02:53,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:02:53,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:02:53,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-28 12:02:53,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 12:02:53,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-28 12:02:53,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:02:53,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:02:53,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:02:53,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-28 12:02:53,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:02:53,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-10-28 12:02:53,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:02:53,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:02:53,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:02:53,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:02:53,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 12:02:53,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:02:54,030 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 194 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 12:02:54,030 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1474801468] [2020-10-28 12:02:54,031 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:02:54,031 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:02:54,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859399214] [2020-10-28 12:02:54,032 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:02:54,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:02:54,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:02:54,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:02:54,033 INFO L87 Difference]: Start difference. First operand 1611 states and 2043 transitions. Second operand 7 states. [2020-10-28 12:02:57,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:02:57,740 INFO L93 Difference]: Finished difference Result 3260 states and 4217 transitions. [2020-10-28 12:02:57,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 12:02:57,747 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 259 [2020-10-28 12:02:57,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:02:57,759 INFO L225 Difference]: With dead ends: 3260 [2020-10-28 12:02:57,759 INFO L226 Difference]: Without dead ends: 2033 [2020-10-28 12:02:57,764 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-28 12:02:57,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2033 states. [2020-10-28 12:02:57,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2033 to 2014. [2020-10-28 12:02:57,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2014 states. [2020-10-28 12:02:57,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2014 states to 2014 states and 2520 transitions. [2020-10-28 12:02:57,835 INFO L78 Accepts]: Start accepts. Automaton has 2014 states and 2520 transitions. Word has length 259 [2020-10-28 12:02:57,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:02:57,836 INFO L481 AbstractCegarLoop]: Abstraction has 2014 states and 2520 transitions. [2020-10-28 12:02:57,836 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:02:57,836 INFO L276 IsEmpty]: Start isEmpty. Operand 2014 states and 2520 transitions. [2020-10-28 12:02:57,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-10-28 12:02:57,843 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:02:57,843 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:02:57,843 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 12:02:57,844 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:02:57,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:02:57,844 INFO L82 PathProgramCache]: Analyzing trace with hash 2142437586, now seen corresponding path program 1 times [2020-10-28 12:02:57,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:02:57,845 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1554545075] [2020-10-28 12:02:57,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:02:57,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:02:57,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:02:58,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:02:58,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:00,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:02,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:03:02,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 283 [2020-10-28 12:03:02,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:03:02,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-28 12:03:02,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:03:02,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:03:02,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:03:02,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-28 12:03:02,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-28 12:03:02,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:03:03,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:03:03,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:03:03,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:03,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:03:03,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:03:03,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:03:03,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 12:03:03,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:03:03,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:03:03,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:03:03,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:03:03,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:03:03,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:03:03,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:03:03,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:03:03,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:03,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:03:03,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-28 12:03:03,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:03:03,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 187 [2020-10-28 12:03:03,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:03:03,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:03:03,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:03:03,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:03:03,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-10-28 12:03:03,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:03:03,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-28 12:03:03,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:03:03,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:03,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:03:03,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-28 12:03:03,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:03:03,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-10-28 12:03:03,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:03:03,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:03:03,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:03:03,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:03:03,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 12:03:03,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:03:04,004 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 194 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 12:03:04,005 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1554545075] [2020-10-28 12:03:04,006 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:03:04,007 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:03:04,007 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818055098] [2020-10-28 12:03:04,008 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:03:04,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:03:04,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:03:04,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:03:04,011 INFO L87 Difference]: Start difference. First operand 2014 states and 2520 transitions. Second operand 7 states. [2020-10-28 12:03:07,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:03:07,742 INFO L93 Difference]: Finished difference Result 4327 states and 5749 transitions. [2020-10-28 12:03:07,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:03:07,743 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 269 [2020-10-28 12:03:07,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:03:07,761 INFO L225 Difference]: With dead ends: 4327 [2020-10-28 12:03:07,762 INFO L226 Difference]: Without dead ends: 2697 [2020-10-28 12:03:07,768 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:03:07,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2697 states. [2020-10-28 12:03:07,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2697 to 2607. [2020-10-28 12:03:07,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2607 states. [2020-10-28 12:03:07,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2607 states to 2607 states and 3217 transitions. [2020-10-28 12:03:07,859 INFO L78 Accepts]: Start accepts. Automaton has 2607 states and 3217 transitions. Word has length 269 [2020-10-28 12:03:07,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:03:07,860 INFO L481 AbstractCegarLoop]: Abstraction has 2607 states and 3217 transitions. [2020-10-28 12:03:07,860 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:03:07,860 INFO L276 IsEmpty]: Start isEmpty. Operand 2607 states and 3217 transitions. [2020-10-28 12:03:07,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2020-10-28 12:03:07,867 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:03:07,867 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:03:07,868 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 12:03:07,868 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:03:07,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:03:07,868 INFO L82 PathProgramCache]: Analyzing trace with hash -471797198, now seen corresponding path program 1 times [2020-10-28 12:03:07,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:03:07,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [278577981] [2020-10-28 12:03:07,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:03:07,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:03:07,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:08,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:09,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:03:09,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 284 [2020-10-28 12:03:09,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:03:09,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1082 [2020-10-28 12:03:09,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:03:09,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:03:09,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:03:09,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 212 [2020-10-28 12:03:09,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-28 12:03:09,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:03:09,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:03:09,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:03:09,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:09,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:03:09,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:03:09,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:03:09,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 12:03:09,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:03:09,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:03:09,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:03:09,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:03:09,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:03:09,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:03:09,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:03:09,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:03:09,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:09,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:03:09,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-28 12:03:09,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:03:09,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-28 12:03:09,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:03:09,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:03:09,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:03:09,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:03:09,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:03:09,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:03:09,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-28 12:03:09,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:03:09,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:09,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:03:09,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-28 12:03:09,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:03:09,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-28 12:03:09,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:03:09,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:03:09,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:03:09,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:03:09,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 12:03:09,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:03:09,463 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 125 proven. 2 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-10-28 12:03:09,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [278577981] [2020-10-28 12:03:09,464 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:03:09,464 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 12:03:09,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633268328] [2020-10-28 12:03:09,465 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 12:03:09,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:03:09,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 12:03:09,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:03:09,467 INFO L87 Difference]: Start difference. First operand 2607 states and 3217 transitions. Second operand 5 states. [2020-10-28 12:03:12,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:03:12,907 INFO L93 Difference]: Finished difference Result 5635 states and 7199 transitions. [2020-10-28 12:03:12,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:03:12,908 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 270 [2020-10-28 12:03:12,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:03:12,931 INFO L225 Difference]: With dead ends: 5635 [2020-10-28 12:03:12,931 INFO L226 Difference]: Without dead ends: 3412 [2020-10-28 12:03:12,939 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 12:03:12,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3412 states. [2020-10-28 12:03:13,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3412 to 3390. [2020-10-28 12:03:13,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3390 states. [2020-10-28 12:03:13,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3390 states to 3390 states and 4108 transitions. [2020-10-28 12:03:13,051 INFO L78 Accepts]: Start accepts. Automaton has 3390 states and 4108 transitions. Word has length 270 [2020-10-28 12:03:13,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:03:13,052 INFO L481 AbstractCegarLoop]: Abstraction has 3390 states and 4108 transitions. [2020-10-28 12:03:13,052 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 12:03:13,052 INFO L276 IsEmpty]: Start isEmpty. Operand 3390 states and 4108 transitions. [2020-10-28 12:03:13,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2020-10-28 12:03:13,059 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:03:13,060 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:03:13,060 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 12:03:13,060 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:03:13,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:03:13,061 INFO L82 PathProgramCache]: Analyzing trace with hash -1664271991, now seen corresponding path program 1 times [2020-10-28 12:03:13,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:03:13,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [882389192] [2020-10-28 12:03:13,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:03:13,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:03:13,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:13,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:13,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:15,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:03:15,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 284 [2020-10-28 12:03:15,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:03:15,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2207 [2020-10-28 12:03:15,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:03:15,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:03:15,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:03:15,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-28 12:03:15,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-28 12:03:15,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:03:15,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:03:15,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:03:15,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:15,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:03:15,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:03:15,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:03:15,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 12:03:15,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:03:15,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:03:15,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:03:15,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:03:15,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:03:15,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:03:15,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:03:15,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:03:15,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:15,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:03:15,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-28 12:03:15,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:03:15,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-28 12:03:15,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:03:15,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:03:15,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:03:15,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:03:15,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-28 12:03:15,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:03:15,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-28 12:03:15,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:03:15,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:15,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:03:15,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-28 12:03:15,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:03:15,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-28 12:03:15,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:03:15,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:03:15,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:03:15,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:03:15,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-28 12:03:15,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:03:15,977 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 190 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 12:03:15,978 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [882389192] [2020-10-28 12:03:15,978 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:03:15,978 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:03:15,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445604759] [2020-10-28 12:03:15,979 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:03:15,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:03:15,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:03:15,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:03:15,980 INFO L87 Difference]: Start difference. First operand 3390 states and 4108 transitions. Second operand 7 states. [2020-10-28 12:03:19,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:03:19,863 INFO L93 Difference]: Finished difference Result 7661 states and 9892 transitions. [2020-10-28 12:03:19,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:03:19,864 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 270 [2020-10-28 12:03:19,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:03:19,892 INFO L225 Difference]: With dead ends: 7661 [2020-10-28 12:03:19,892 INFO L226 Difference]: Without dead ends: 4655 [2020-10-28 12:03:19,903 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:03:19,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4655 states. [2020-10-28 12:03:20,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4655 to 4582. [2020-10-28 12:03:20,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4582 states. [2020-10-28 12:03:20,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4582 states to 4582 states and 5519 transitions. [2020-10-28 12:03:20,047 INFO L78 Accepts]: Start accepts. Automaton has 4582 states and 5519 transitions. Word has length 270 [2020-10-28 12:03:20,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:03:20,047 INFO L481 AbstractCegarLoop]: Abstraction has 4582 states and 5519 transitions. [2020-10-28 12:03:20,048 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:03:20,048 INFO L276 IsEmpty]: Start isEmpty. Operand 4582 states and 5519 transitions. [2020-10-28 12:03:20,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2020-10-28 12:03:20,057 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:03:20,057 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:03:20,058 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 12:03:20,058 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:03:20,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:03:20,058 INFO L82 PathProgramCache]: Analyzing trace with hash 907020351, now seen corresponding path program 1 times [2020-10-28 12:03:20,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:03:20,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1531423495] [2020-10-28 12:03:20,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:03:20,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:03:20,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:20,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:20,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:21,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:22,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:23,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:23,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:25,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:03:25,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 288 [2020-10-28 12:03:25,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-28 12:03:25,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-28 12:03:25,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:03:25,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:03:25,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:03:25,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 139 [2020-10-28 12:03:25,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:03:25,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:03:25,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:03:25,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:03:25,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:25,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:03:25,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:03:25,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:03:25,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:03:25,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:03:25,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:03:25,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:03:25,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:03:25,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:03:25,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:03:25,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:03:25,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:03:25,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:25,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:03:25,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-28 12:03:25,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:03:25,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-28 12:03:25,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:03:25,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:03:25,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:03:25,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-10-28 12:03:25,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:03:25,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:03:25,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-28 12:03:25,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:03:25,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:25,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:03:25,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-28 12:03:25,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:03:25,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-28 12:03:25,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:03:25,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:03:25,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:03:25,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-28 12:03:25,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:03:25,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:03:25,547 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 124 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-10-28 12:03:25,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1531423495] [2020-10-28 12:03:25,548 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:03:25,548 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 12:03:25,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207938433] [2020-10-28 12:03:25,549 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 12:03:25,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:03:25,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 12:03:25,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:03:25,550 INFO L87 Difference]: Start difference. First operand 4582 states and 5519 transitions. Second operand 5 states. [2020-10-28 12:03:28,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:03:28,448 INFO L93 Difference]: Finished difference Result 9748 states and 12101 transitions. [2020-10-28 12:03:28,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:03:28,455 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 274 [2020-10-28 12:03:28,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:03:28,482 INFO L225 Difference]: With dead ends: 9748 [2020-10-28 12:03:28,482 INFO L226 Difference]: Without dead ends: 5550 [2020-10-28 12:03:28,495 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 12:03:28,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5550 states. [2020-10-28 12:03:28,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5550 to 5152. [2020-10-28 12:03:28,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5152 states. [2020-10-28 12:03:28,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5152 states to 5152 states and 6238 transitions. [2020-10-28 12:03:28,650 INFO L78 Accepts]: Start accepts. Automaton has 5152 states and 6238 transitions. Word has length 274 [2020-10-28 12:03:28,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:03:28,651 INFO L481 AbstractCegarLoop]: Abstraction has 5152 states and 6238 transitions. [2020-10-28 12:03:28,651 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 12:03:28,651 INFO L276 IsEmpty]: Start isEmpty. Operand 5152 states and 6238 transitions. [2020-10-28 12:03:28,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2020-10-28 12:03:28,660 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:03:28,661 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:03:28,661 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 12:03:28,661 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:03:28,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:03:28,662 INFO L82 PathProgramCache]: Analyzing trace with hash 808933261, now seen corresponding path program 1 times [2020-10-28 12:03:28,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:03:28,662 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [77943505] [2020-10-28 12:03:28,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:03:28,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:03:28,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:29,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:29,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:03:29,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 314 [2020-10-28 12:03:29,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:03:29,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1127 [2020-10-28 12:03:29,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:03:29,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:03:29,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:03:29,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-28 12:03:29,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-28 12:03:29,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:03:29,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:03:29,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:03:29,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:29,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:03:29,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:03:29,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:03:29,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:03:29,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:03:29,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:03:29,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:03:29,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:03:29,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:03:29,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:03:29,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:03:30,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:03:30,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:30,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:03:30,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-28 12:03:30,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:03:30,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-28 12:03:30,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:03:30,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:03:30,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:03:30,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:03:30,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-28 12:03:30,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:03:30,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-28 12:03:30,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:03:30,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:30,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:03:30,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-28 12:03:30,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:03:30,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-10-28 12:03:30,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:03:30,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:03:30,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:03:30,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:03:30,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-28 12:03:30,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:03:30,523 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 220 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 12:03:30,523 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [77943505] [2020-10-28 12:03:30,523 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:03:30,523 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:03:30,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587331236] [2020-10-28 12:03:30,524 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:03:30,524 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:03:30,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:03:30,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:03:30,525 INFO L87 Difference]: Start difference. First operand 5152 states and 6238 transitions. Second operand 7 states. [2020-10-28 12:03:34,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:03:34,478 INFO L93 Difference]: Finished difference Result 13007 states and 16188 transitions. [2020-10-28 12:03:34,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:03:34,479 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 300 [2020-10-28 12:03:34,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:03:34,527 INFO L225 Difference]: With dead ends: 13007 [2020-10-28 12:03:34,527 INFO L226 Difference]: Without dead ends: 8239 [2020-10-28 12:03:34,543 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:03:34,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8239 states. [2020-10-28 12:03:34,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8239 to 8212. [2020-10-28 12:03:34,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8212 states. [2020-10-28 12:03:34,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8212 states to 8212 states and 10144 transitions. [2020-10-28 12:03:34,765 INFO L78 Accepts]: Start accepts. Automaton has 8212 states and 10144 transitions. Word has length 300 [2020-10-28 12:03:34,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:03:34,766 INFO L481 AbstractCegarLoop]: Abstraction has 8212 states and 10144 transitions. [2020-10-28 12:03:34,766 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:03:34,766 INFO L276 IsEmpty]: Start isEmpty. Operand 8212 states and 10144 transitions. [2020-10-28 12:03:34,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2020-10-28 12:03:34,778 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:03:34,778 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:03:34,779 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 12:03:34,779 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:03:34,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:03:34,779 INFO L82 PathProgramCache]: Analyzing trace with hash 839923860, now seen corresponding path program 1 times [2020-10-28 12:03:34,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:03:34,780 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1815150416] [2020-10-28 12:03:34,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:03:34,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:03:34,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:35,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:36,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:03:36,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 325 [2020-10-28 12:03:36,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:03:36,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1703 [2020-10-28 12:03:36,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:03:36,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:03:36,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:03:36,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-28 12:03:36,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-28 12:03:36,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:03:36,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:03:36,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:03:36,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:36,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:03:36,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:03:36,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:03:36,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:03:36,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:03:36,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:03:36,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:03:36,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:03:36,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:03:36,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:03:36,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:03:36,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:03:36,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:36,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:03:36,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-28 12:03:36,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:03:36,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-28 12:03:36,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:03:36,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:03:36,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:03:36,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:03:36,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-28 12:03:36,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:03:36,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-28 12:03:36,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:03:36,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:37,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:03:37,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:03:37,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:03:37,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 185 [2020-10-28 12:03:37,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:03:37,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:03:37,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:03:37,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:03:37,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-28 12:03:37,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:03:37,274 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 231 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 12:03:37,274 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1815150416] [2020-10-28 12:03:37,274 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:03:37,274 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:03:37,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327657898] [2020-10-28 12:03:37,275 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:03:37,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:03:37,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:03:37,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:03:37,276 INFO L87 Difference]: Start difference. First operand 8212 states and 10144 transitions. Second operand 7 states. [2020-10-28 12:03:41,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:03:41,947 INFO L93 Difference]: Finished difference Result 15102 states and 18753 transitions. [2020-10-28 12:03:41,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:03:41,950 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 311 [2020-10-28 12:03:41,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:03:41,978 INFO L225 Difference]: With dead ends: 15102 [2020-10-28 12:03:41,978 INFO L226 Difference]: Without dead ends: 9584 [2020-10-28 12:03:41,994 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:03:42,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9584 states. [2020-10-28 12:03:42,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9584 to 9557. [2020-10-28 12:03:42,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9557 states. [2020-10-28 12:03:42,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9557 states to 9557 states and 11637 transitions. [2020-10-28 12:03:42,214 INFO L78 Accepts]: Start accepts. Automaton has 9557 states and 11637 transitions. Word has length 311 [2020-10-28 12:03:42,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:03:42,214 INFO L481 AbstractCegarLoop]: Abstraction has 9557 states and 11637 transitions. [2020-10-28 12:03:42,214 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:03:42,214 INFO L276 IsEmpty]: Start isEmpty. Operand 9557 states and 11637 transitions. [2020-10-28 12:03:42,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2020-10-28 12:03:42,225 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:03:42,226 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:03:42,226 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 12:03:42,226 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:03:42,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:03:42,227 INFO L82 PathProgramCache]: Analyzing trace with hash 1296843476, now seen corresponding path program 1 times [2020-10-28 12:03:42,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:03:42,227 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2013570919] [2020-10-28 12:03:42,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:03:42,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:03:42,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:42,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:42,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:44,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:47,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:03:47,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 328 [2020-10-28 12:03:47,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:03:47,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-28 12:03:47,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:03:47,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:03:47,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:03:47,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 181 [2020-10-28 12:03:47,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-28 12:03:47,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:03:47,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:03:47,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:03:47,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:47,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:03:47,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:03:47,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:03:47,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 12:03:47,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:03:47,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:03:47,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:03:47,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:03:47,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:03:47,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:03:47,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:03:47,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:03:47,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:47,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:03:47,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-28 12:03:47,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:03:47,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-10-28 12:03:47,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:03:47,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:03:47,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:03:47,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:03:47,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-28 12:03:47,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:03:47,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-28 12:03:47,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:03:47,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:47,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:03:47,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-28 12:03:47,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:03:47,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-28 12:03:47,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:03:47,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:03:47,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:03:47,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:03:47,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 12:03:47,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:03:48,085 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 194 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 12:03:48,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2013570919] [2020-10-28 12:03:48,086 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:03:48,086 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:03:48,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517310042] [2020-10-28 12:03:48,087 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:03:48,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:03:48,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:03:48,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:03:48,088 INFO L87 Difference]: Start difference. First operand 9557 states and 11637 transitions. Second operand 7 states. [2020-10-28 12:03:51,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:03:51,541 INFO L93 Difference]: Finished difference Result 19516 states and 23936 transitions. [2020-10-28 12:03:51,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:03:51,542 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 314 [2020-10-28 12:03:51,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:03:51,575 INFO L225 Difference]: With dead ends: 19516 [2020-10-28 12:03:51,575 INFO L226 Difference]: Without dead ends: 10343 [2020-10-28 12:03:51,596 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:03:51,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10343 states. [2020-10-28 12:03:51,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10343 to 10125. [2020-10-28 12:03:51,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10125 states. [2020-10-28 12:03:51,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10125 states to 10125 states and 12264 transitions. [2020-10-28 12:03:51,828 INFO L78 Accepts]: Start accepts. Automaton has 10125 states and 12264 transitions. Word has length 314 [2020-10-28 12:03:51,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:03:51,828 INFO L481 AbstractCegarLoop]: Abstraction has 10125 states and 12264 transitions. [2020-10-28 12:03:51,828 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:03:51,829 INFO L276 IsEmpty]: Start isEmpty. Operand 10125 states and 12264 transitions. [2020-10-28 12:03:51,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2020-10-28 12:03:51,837 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:03:51,838 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:03:51,838 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-28 12:03:51,838 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:03:51,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:03:51,839 INFO L82 PathProgramCache]: Analyzing trace with hash 873180584, now seen corresponding path program 1 times [2020-10-28 12:03:51,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:03:51,839 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1455741815] [2020-10-28 12:03:51,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:03:51,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:03:51,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:52,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:52,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:03:52,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-28 12:03:52,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:03:52,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 912 [2020-10-28 12:03:52,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:03:52,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:03:52,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:03:52,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 258 [2020-10-28 12:03:52,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-28 12:03:52,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:03:52,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:03:52,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:03:52,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:52,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:03:52,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:03:52,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:03:52,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 12:03:52,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:03:52,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:03:52,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:03:52,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:03:52,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:03:52,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:03:53,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:03:53,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:03:53,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:53,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:03:53,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-28 12:03:53,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:03:53,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-28 12:03:53,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:03:53,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:03:53,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:03:53,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:03:53,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:03:53,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:03:53,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-28 12:03:53,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:03:53,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:53,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:03:53,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-28 12:03:53,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:03:53,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-28 12:03:53,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:03:53,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:03:53,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:03:53,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:03:53,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-28 12:03:53,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:03:53,503 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 125 proven. 2 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2020-10-28 12:03:53,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1455741815] [2020-10-28 12:03:53,504 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:03:53,504 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 12:03:53,504 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754690837] [2020-10-28 12:03:53,505 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 12:03:53,505 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:03:53,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 12:03:53,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:03:53,506 INFO L87 Difference]: Start difference. First operand 10125 states and 12264 transitions. Second operand 5 states. [2020-10-28 12:03:57,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:03:57,053 INFO L93 Difference]: Finished difference Result 21217 states and 26084 transitions. [2020-10-28 12:03:57,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:03:57,054 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 316 [2020-10-28 12:03:57,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:03:57,101 INFO L225 Difference]: With dead ends: 21217 [2020-10-28 12:03:57,101 INFO L226 Difference]: Without dead ends: 11286 [2020-10-28 12:03:57,126 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 12:03:57,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11286 states. [2020-10-28 12:03:57,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11286 to 11077. [2020-10-28 12:03:57,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11077 states. [2020-10-28 12:03:57,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11077 states to 11077 states and 13450 transitions. [2020-10-28 12:03:57,389 INFO L78 Accepts]: Start accepts. Automaton has 11077 states and 13450 transitions. Word has length 316 [2020-10-28 12:03:57,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:03:57,390 INFO L481 AbstractCegarLoop]: Abstraction has 11077 states and 13450 transitions. [2020-10-28 12:03:57,390 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 12:03:57,390 INFO L276 IsEmpty]: Start isEmpty. Operand 11077 states and 13450 transitions. [2020-10-28 12:03:57,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2020-10-28 12:03:57,404 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:03:57,405 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:03:57,405 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-28 12:03:57,405 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:03:57,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:03:57,406 INFO L82 PathProgramCache]: Analyzing trace with hash -1537927507, now seen corresponding path program 1 times [2020-10-28 12:03:57,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:03:57,411 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [841484326] [2020-10-28 12:03:57,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:03:57,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:03:57,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:57,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:57,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:58,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:58,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:03:58,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 374 [2020-10-28 12:03:58,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:03:58,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 714 [2020-10-28 12:03:58,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:03:58,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:03:58,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:03:58,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:03:58,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 297 [2020-10-28 12:03:58,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:03:58,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:03:58,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:03:58,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:58,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:03:58,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:03:58,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:03:58,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 12:03:58,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:03:58,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:03:58,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:03:58,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:03:58,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:03:58,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:03:58,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:03:58,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:03:58,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:58,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:58,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:03:58,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-28 12:03:58,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:03:58,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-10-28 12:03:58,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:03:58,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:03:58,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:03:58,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:03:58,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-28 12:03:58,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:03:58,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-28 12:03:58,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:03:58,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:58,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:58,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:03:58,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-28 12:03:58,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:03:58,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-10-28 12:03:58,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:03:58,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:03:58,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:03:58,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-10-28 12:03:58,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 12:03:58,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:03:58,929 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2020-10-28 12:03:58,929 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [841484326] [2020-10-28 12:03:58,929 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:03:58,929 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 12:03:58,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554320383] [2020-10-28 12:03:58,930 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 12:03:58,930 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:03:58,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 12:03:58,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-28 12:03:58,931 INFO L87 Difference]: Start difference. First operand 11077 states and 13450 transitions. Second operand 6 states. [2020-10-28 12:04:01,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:04:01,270 INFO L93 Difference]: Finished difference Result 18703 states and 22964 transitions. [2020-10-28 12:04:01,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:04:01,271 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 360 [2020-10-28 12:04:01,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:04:01,304 INFO L225 Difference]: With dead ends: 18703 [2020-10-28 12:04:01,304 INFO L226 Difference]: Without dead ends: 10890 [2020-10-28 12:04:01,321 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:04:01,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10890 states. [2020-10-28 12:04:01,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10890 to 10874. [2020-10-28 12:04:01,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10874 states. [2020-10-28 12:04:01,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10874 states to 10874 states and 13172 transitions. [2020-10-28 12:04:01,535 INFO L78 Accepts]: Start accepts. Automaton has 10874 states and 13172 transitions. Word has length 360 [2020-10-28 12:04:01,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:04:01,535 INFO L481 AbstractCegarLoop]: Abstraction has 10874 states and 13172 transitions. [2020-10-28 12:04:01,535 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 12:04:01,535 INFO L276 IsEmpty]: Start isEmpty. Operand 10874 states and 13172 transitions. [2020-10-28 12:04:01,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2020-10-28 12:04:01,552 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:04:01,552 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, 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, 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] [2020-10-28 12:04:01,552 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-28 12:04:01,553 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:04:01,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:04:01,553 INFO L82 PathProgramCache]: Analyzing trace with hash 509278227, now seen corresponding path program 1 times [2020-10-28 12:04:01,553 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:04:01,553 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1213146264] [2020-10-28 12:04:01,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:04:01,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:01,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:01,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:03,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:03,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:03,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 400 [2020-10-28 12:04:03,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:04:03,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2262 [2020-10-28 12:04:03,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:03,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:03,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:04:03,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 224 [2020-10-28 12:04:03,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-28 12:04:03,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:04:04,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:04:04,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:04,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:04,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:04,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:04:04,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:04:04,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 12:04:04,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:04,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:04,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:04:04,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:04:04,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:04:04,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:04:04,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:04:04,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:04,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:04,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:04,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-28 12:04:04,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:04:04,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-28 12:04:04,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:04,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:04,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:04:04,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:04:04,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:04:04,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:04:04,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-28 12:04:04,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:04,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:04,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:04,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-28 12:04:04,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:04:04,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-28 12:04:04,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:04,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:04,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:04:04,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:04:04,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-28 12:04:04,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:04:04,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-28 12:04:04,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:04,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:04,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:04,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:04,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-28 12:04:04,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:04:04,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-10-28 12:04:04,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:04,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:04,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:04:04,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:04:04,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-28 12:04:04,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:04:04,721 INFO L134 CoverageAnalysis]: Checked inductivity of 460 backedges. 192 proven. 5 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2020-10-28 12:04:04,722 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1213146264] [2020-10-28 12:04:04,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:04:04,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-28 12:04:04,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053867186] [2020-10-28 12:04:04,723 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 12:04:04,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:04:04,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 12:04:04,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-28 12:04:04,724 INFO L87 Difference]: Start difference. First operand 10874 states and 13172 transitions. Second operand 6 states. [2020-10-28 12:04:07,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:04:07,929 INFO L93 Difference]: Finished difference Result 18494 states and 22645 transitions. [2020-10-28 12:04:07,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:04:07,930 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 384 [2020-10-28 12:04:07,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:04:07,959 INFO L225 Difference]: With dead ends: 18494 [2020-10-28 12:04:07,960 INFO L226 Difference]: Without dead ends: 10884 [2020-10-28 12:04:07,974 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:04:07,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10884 states. [2020-10-28 12:04:08,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10884 to 10866. [2020-10-28 12:04:08,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10866 states. [2020-10-28 12:04:08,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10866 states to 10866 states and 12698 transitions. [2020-10-28 12:04:08,176 INFO L78 Accepts]: Start accepts. Automaton has 10866 states and 12698 transitions. Word has length 384 [2020-10-28 12:04:08,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:04:08,177 INFO L481 AbstractCegarLoop]: Abstraction has 10866 states and 12698 transitions. [2020-10-28 12:04:08,177 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 12:04:08,177 INFO L276 IsEmpty]: Start isEmpty. Operand 10866 states and 12698 transitions. [2020-10-28 12:04:08,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2020-10-28 12:04:08,192 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:04:08,192 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:04:08,192 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-28 12:04:08,193 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:04:08,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:04:08,193 INFO L82 PathProgramCache]: Analyzing trace with hash -1396999199, now seen corresponding path program 1 times [2020-10-28 12:04:08,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:04:08,193 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1250309898] [2020-10-28 12:04:08,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:04:08,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:08,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:08,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:08,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 398 [2020-10-28 12:04:08,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:04:08,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 557 [2020-10-28 12:04:08,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:08,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:08,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:04:08,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 325 [2020-10-28 12:04:08,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-28 12:04:08,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:04:08,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:04:08,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:08,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:08,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:08,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:04:08,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:04:08,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:04:08,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:08,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:08,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:04:08,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:04:08,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:04:08,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:04:09,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:04:09,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:09,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:09,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:09,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-28 12:04:09,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:04:09,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 12:04:09,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:09,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:09,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:04:09,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:04:09,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:04:09,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:04:09,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-28 12:04:09,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:09,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:09,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:09,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-10-28 12:04:09,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:04:09,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-28 12:04:09,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:09,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:09,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:04:09,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:04:09,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 177 [2020-10-28 12:04:09,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:04:09,426 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 125 proven. 2 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2020-10-28 12:04:09,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1250309898] [2020-10-28 12:04:09,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:04:09,427 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 12:04:09,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209657881] [2020-10-28 12:04:09,428 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 12:04:09,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:04:09,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 12:04:09,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:04:09,428 INFO L87 Difference]: Start difference. First operand 10866 states and 12698 transitions. Second operand 5 states. [2020-10-28 12:04:12,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:04:12,452 INFO L93 Difference]: Finished difference Result 23275 states and 27527 transitions. [2020-10-28 12:04:12,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:04:12,453 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 384 [2020-10-28 12:04:12,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:04:12,489 INFO L225 Difference]: With dead ends: 23275 [2020-10-28 12:04:12,490 INFO L226 Difference]: Without dead ends: 12605 [2020-10-28 12:04:12,507 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 12:04:12,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12605 states. [2020-10-28 12:04:12,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12605 to 12200. [2020-10-28 12:04:12,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12200 states. [2020-10-28 12:04:12,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12200 states to 12200 states and 14311 transitions. [2020-10-28 12:04:12,760 INFO L78 Accepts]: Start accepts. Automaton has 12200 states and 14311 transitions. Word has length 384 [2020-10-28 12:04:12,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:04:12,761 INFO L481 AbstractCegarLoop]: Abstraction has 12200 states and 14311 transitions. [2020-10-28 12:04:12,761 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 12:04:12,761 INFO L276 IsEmpty]: Start isEmpty. Operand 12200 states and 14311 transitions. [2020-10-28 12:04:12,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2020-10-28 12:04:12,776 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:04:12,777 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, 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, 2, 2, 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] [2020-10-28 12:04:12,777 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-28 12:04:12,777 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:04:12,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:04:12,777 INFO L82 PathProgramCache]: Analyzing trace with hash 1983968742, now seen corresponding path program 1 times [2020-10-28 12:04:12,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:04:12,778 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1847455783] [2020-10-28 12:04:12,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:04:12,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:12,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:13,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:13,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:13,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 423 [2020-10-28 12:04:13,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:04:13,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1027 [2020-10-28 12:04:13,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:13,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:13,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:04:13,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 259 [2020-10-28 12:04:13,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-28 12:04:13,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:04:14,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:04:14,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:14,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:14,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:14,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:04:14,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:04:14,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:04:14,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:14,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:14,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:04:14,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:04:14,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:04:14,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:04:14,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:04:14,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:14,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:14,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:14,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-28 12:04:14,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:04:14,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 12:04:14,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:14,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:14,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:04:14,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:04:14,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:04:14,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:04:14,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-28 12:04:14,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:14,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:14,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:14,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-28 12:04:14,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:04:14,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-28 12:04:14,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:14,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:14,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:04:14,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:04:14,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-28 12:04:14,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:04:14,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-28 12:04:14,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:14,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:14,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:14,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:14,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-28 12:04:14,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:04:14,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-28 12:04:14,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:14,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:14,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:04:14,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:04:14,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-28 12:04:14,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:04:14,562 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 300 proven. 63 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2020-10-28 12:04:14,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1847455783] [2020-10-28 12:04:14,562 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:04:14,562 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:04:14,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2925219] [2020-10-28 12:04:14,563 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:04:14,563 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:04:14,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:04:14,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:04:14,564 INFO L87 Difference]: Start difference. First operand 12200 states and 14311 transitions. Second operand 7 states. [2020-10-28 12:04:18,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:04:18,872 INFO L93 Difference]: Finished difference Result 22711 states and 26899 transitions. [2020-10-28 12:04:18,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:04:18,873 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 407 [2020-10-28 12:04:18,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:04:18,911 INFO L225 Difference]: With dead ends: 22711 [2020-10-28 12:04:18,911 INFO L226 Difference]: Without dead ends: 13775 [2020-10-28 12:04:18,927 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:04:18,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13775 states. [2020-10-28 12:04:19,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13775 to 13182. [2020-10-28 12:04:19,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13182 states. [2020-10-28 12:04:19,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13182 states to 13182 states and 15480 transitions. [2020-10-28 12:04:19,204 INFO L78 Accepts]: Start accepts. Automaton has 13182 states and 15480 transitions. Word has length 407 [2020-10-28 12:04:19,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:04:19,204 INFO L481 AbstractCegarLoop]: Abstraction has 13182 states and 15480 transitions. [2020-10-28 12:04:19,205 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:04:19,205 INFO L276 IsEmpty]: Start isEmpty. Operand 13182 states and 15480 transitions. [2020-10-28 12:04:19,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 540 [2020-10-28 12:04:19,233 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:04:19,234 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:04:19,234 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-28 12:04:19,234 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:04:19,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:04:19,235 INFO L82 PathProgramCache]: Analyzing trace with hash 223412003, now seen corresponding path program 1 times [2020-10-28 12:04:19,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:04:19,235 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2082238525] [2020-10-28 12:04:19,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:04:19,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:19,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:19,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:21,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:21,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:23,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:24,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:24,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 557 [2020-10-28 12:04:24,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 12:04:24,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-28 12:04:24,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:24,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:24,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:04:24,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 346 [2020-10-28 12:04:24,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 140 [2020-10-28 12:04:24,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:04:24,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:04:24,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:24,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:24,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:24,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:04:24,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:04:24,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:04:24,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:24,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:24,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:04:24,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:04:24,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:04:24,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:04:24,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:04:24,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:24,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:24,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:24,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-28 12:04:24,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:04:24,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-28 12:04:24,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:24,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:24,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:04:24,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:04:24,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:04:24,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:04:24,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-28 12:04:24,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:24,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:24,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:24,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-28 12:04:24,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:04:24,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 12:04:24,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:24,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:24,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:04:24,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:04:24,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:04:24,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:04:24,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-28 12:04:24,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:24,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:24,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:24,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-28 12:04:24,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:04:24,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-28 12:04:24,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:24,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:24,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:04:24,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:04:24,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-28 12:04:24,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:04:24,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2020-10-28 12:04:24,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:24,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:25,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:25,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-28 12:04:25,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:04:25,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-10-28 12:04:25,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:25,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:25,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:04:25,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:04:25,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-28 12:04:25,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:04:25,262 INFO L134 CoverageAnalysis]: Checked inductivity of 866 backedges. 581 proven. 2 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2020-10-28 12:04:25,263 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2082238525] [2020-10-28 12:04:25,263 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:04:25,263 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:04:25,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441066626] [2020-10-28 12:04:25,264 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:04:25,264 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:04:25,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:04:25,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:04:25,265 INFO L87 Difference]: Start difference. First operand 13182 states and 15480 transitions. Second operand 7 states. [2020-10-28 12:04:29,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:04:29,788 INFO L93 Difference]: Finished difference Result 26234 states and 30815 transitions. [2020-10-28 12:04:29,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:04:29,789 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 539 [2020-10-28 12:04:29,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:04:29,820 INFO L225 Difference]: With dead ends: 26234 [2020-10-28 12:04:29,820 INFO L226 Difference]: Without dead ends: 13248 [2020-10-28 12:04:29,839 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:04:29,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13248 states. [2020-10-28 12:04:30,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13248 to 13009. [2020-10-28 12:04:30,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13009 states. [2020-10-28 12:04:30,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13009 states to 13009 states and 14816 transitions. [2020-10-28 12:04:30,079 INFO L78 Accepts]: Start accepts. Automaton has 13009 states and 14816 transitions. Word has length 539 [2020-10-28 12:04:30,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:04:30,080 INFO L481 AbstractCegarLoop]: Abstraction has 13009 states and 14816 transitions. [2020-10-28 12:04:30,080 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:04:30,080 INFO L276 IsEmpty]: Start isEmpty. Operand 13009 states and 14816 transitions. [2020-10-28 12:04:30,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 557 [2020-10-28 12:04:30,106 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:04:30,108 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:04:30,108 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-28 12:04:30,108 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:04:30,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:04:30,110 INFO L82 PathProgramCache]: Analyzing trace with hash -643788909, now seen corresponding path program 1 times [2020-10-28 12:04:30,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:04:30,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1669495224] [2020-10-28 12:04:30,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:04:30,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:30,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:30,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:31,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:31,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:35,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:35,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:35,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 574 [2020-10-28 12:04:35,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 12:04:35,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-10-28 12:04:35,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:35,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:35,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:04:35,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 502 [2020-10-28 12:04:35,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-28 12:04:35,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:04:35,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:04:35,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:35,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:35,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:35,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:04:35,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:04:35,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:04:35,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:35,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:35,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:04:35,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:04:35,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:04:35,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:04:35,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:04:35,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:35,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:35,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:35,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-28 12:04:35,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:04:35,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 12:04:35,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:35,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:35,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:04:35,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:04:35,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:04:35,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:04:35,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-28 12:04:35,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:35,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:35,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:35,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-28 12:04:35,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:04:35,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 12:04:35,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:35,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:35,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:04:35,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:04:35,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:04:35,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:04:35,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-28 12:04:35,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:35,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:35,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:35,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-28 12:04:35,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:04:35,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-28 12:04:35,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:35,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:35,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:04:35,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:04:35,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:04:35,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:04:35,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2020-10-28 12:04:35,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:35,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:35,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:35,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-28 12:04:35,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:04:35,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-28 12:04:35,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:35,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:35,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:04:35,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:04:35,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-28 12:04:35,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:04:36,015 INFO L134 CoverageAnalysis]: Checked inductivity of 893 backedges. 253 proven. 4 refuted. 0 times theorem prover too weak. 636 trivial. 0 not checked. [2020-10-28 12:04:36,016 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1669495224] [2020-10-28 12:04:36,016 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:04:36,016 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 12:04:36,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811220510] [2020-10-28 12:04:36,017 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 12:04:36,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:04:36,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 12:04:36,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:04:36,018 INFO L87 Difference]: Start difference. First operand 13009 states and 14816 transitions. Second operand 5 states. [2020-10-28 12:04:39,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:04:39,078 INFO L93 Difference]: Finished difference Result 15692 states and 17878 transitions. [2020-10-28 12:04:39,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:04:39,079 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 556 [2020-10-28 12:04:39,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:04:39,118 INFO L225 Difference]: With dead ends: 15692 [2020-10-28 12:04:39,118 INFO L226 Difference]: Without dead ends: 15689 [2020-10-28 12:04:39,125 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 12:04:39,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15689 states. [2020-10-28 12:04:39,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15689 to 13963. [2020-10-28 12:04:39,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13963 states. [2020-10-28 12:04:39,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13963 states to 13963 states and 15963 transitions. [2020-10-28 12:04:39,434 INFO L78 Accepts]: Start accepts. Automaton has 13963 states and 15963 transitions. Word has length 556 [2020-10-28 12:04:39,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:04:39,434 INFO L481 AbstractCegarLoop]: Abstraction has 13963 states and 15963 transitions. [2020-10-28 12:04:39,435 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 12:04:39,435 INFO L276 IsEmpty]: Start isEmpty. Operand 13963 states and 15963 transitions. [2020-10-28 12:04:39,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 623 [2020-10-28 12:04:39,460 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:04:39,461 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:04:39,461 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-28 12:04:39,461 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:04:39,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:04:39,462 INFO L82 PathProgramCache]: Analyzing trace with hash 1843678156, now seen corresponding path program 1 times [2020-10-28 12:04:39,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:04:39,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [648456768] [2020-10-28 12:04:39,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:04:39,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:39,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:39,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:41,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:43,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:44,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:44,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 640 [2020-10-28 12:04:44,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:04:44,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4962 [2020-10-28 12:04:44,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:44,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:44,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:04:44,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 476 [2020-10-28 12:04:44,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-28 12:04:44,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:04:44,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:04:44,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:44,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:44,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:44,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:04:44,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:04:44,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:04:44,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:44,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:44,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:04:44,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:04:44,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:04:44,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:04:44,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:04:44,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:44,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:44,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:44,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-28 12:04:44,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:04:44,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-10-28 12:04:44,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:44,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:44,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:04:44,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:04:44,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:04:44,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:04:44,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-28 12:04:44,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:44,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:45,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:45,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-10-28 12:04:45,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:04:45,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-28 12:04:45,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:45,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:45,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:04:45,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:04:45,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:04:45,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:04:45,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2020-10-28 12:04:45,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:45,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:45,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:45,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-28 12:04:45,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:04:45,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-28 12:04:45,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:45,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:45,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:04:45,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:04:45,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-28 12:04:45,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:04:45,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-28 12:04:45,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:45,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:45,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:45,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:45,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-28 12:04:45,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:04:45,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-28 12:04:45,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:45,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:45,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:04:45,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:04:45,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-28 12:04:45,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:04:45,606 INFO L134 CoverageAnalysis]: Checked inductivity of 945 backedges. 453 proven. 64 refuted. 0 times theorem prover too weak. 428 trivial. 0 not checked. [2020-10-28 12:04:45,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [648456768] [2020-10-28 12:04:45,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:04:45,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:04:45,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863029087] [2020-10-28 12:04:45,608 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:04:45,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:04:45,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:04:45,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:04:45,608 INFO L87 Difference]: Start difference. First operand 13963 states and 15963 transitions. Second operand 7 states. [2020-10-28 12:04:49,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:04:49,245 INFO L93 Difference]: Finished difference Result 25640 states and 29421 transitions. [2020-10-28 12:04:49,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:04:49,253 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 622 [2020-10-28 12:04:49,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:04:49,280 INFO L225 Difference]: With dead ends: 25640 [2020-10-28 12:04:49,280 INFO L226 Difference]: Without dead ends: 14943 [2020-10-28 12:04:49,292 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:04:49,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14943 states. [2020-10-28 12:04:49,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14943 to 14717. [2020-10-28 12:04:49,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14717 states. [2020-10-28 12:04:49,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14717 states to 14717 states and 16706 transitions. [2020-10-28 12:04:49,572 INFO L78 Accepts]: Start accepts. Automaton has 14717 states and 16706 transitions. Word has length 622 [2020-10-28 12:04:49,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:04:49,572 INFO L481 AbstractCegarLoop]: Abstraction has 14717 states and 16706 transitions. [2020-10-28 12:04:49,572 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:04:49,573 INFO L276 IsEmpty]: Start isEmpty. Operand 14717 states and 16706 transitions. [2020-10-28 12:04:49,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 837 [2020-10-28 12:04:49,602 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:04:49,603 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:04:49,604 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-28 12:04:49,604 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:04:49,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:04:49,604 INFO L82 PathProgramCache]: Analyzing trace with hash 349609843, now seen corresponding path program 1 times [2020-10-28 12:04:49,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:04:49,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [759006313] [2020-10-28 12:04:49,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:04:49,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:49,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:50,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:50,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:52,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:53,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:54,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:54,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 858 [2020-10-28 12:04:54,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 12:04:54,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-28 12:04:54,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:54,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:54,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:04:54,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 540 [2020-10-28 12:04:54,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 153 [2020-10-28 12:04:54,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:04:55,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:04:55,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:55,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:55,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:55,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:04:55,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:04:55,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:04:55,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:55,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:55,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:04:55,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:04:55,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:04:55,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:04:55,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:04:55,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:55,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:55,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:55,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-28 12:04:55,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:04:55,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-28 12:04:55,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:55,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:55,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:04:55,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:04:55,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:04:55,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:04:55,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-28 12:04:55,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:55,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:55,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:55,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-28 12:04:55,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:04:55,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 12:04:55,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:55,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:55,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:04:55,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:04:55,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:04:55,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:04:55,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2020-10-28 12:04:55,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:55,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:55,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:55,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-28 12:04:55,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:04:55,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-28 12:04:55,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:55,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:55,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:04:55,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:04:55,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:04:55,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:04:55,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:04:55,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:55,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:55,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:55,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-28 12:04:55,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:04:55,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-28 12:04:55,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:55,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:55,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:04:55,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:04:55,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-28 12:04:55,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:04:55,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 532 [2020-10-28 12:04:55,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:55,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:55,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:55,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-28 12:04:55,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:04:55,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-28 12:04:55,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:55,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:55,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:04:55,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:04:55,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 153 [2020-10-28 12:04:55,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:04:55,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 684 [2020-10-28 12:04:55,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:55,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:55,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:55,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-28 12:04:55,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:04:55,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-28 12:04:55,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:55,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:55,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:04:55,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-28 12:04:55,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:04:55,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:04:56,184 INFO L134 CoverageAnalysis]: Checked inductivity of 1963 backedges. 889 proven. 89 refuted. 0 times theorem prover too weak. 985 trivial. 0 not checked. [2020-10-28 12:04:56,184 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [759006313] [2020-10-28 12:04:56,184 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:04:56,184 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:04:56,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975149232] [2020-10-28 12:04:56,185 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:04:56,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:04:56,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:04:56,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:04:56,186 INFO L87 Difference]: Start difference. First operand 14717 states and 16706 transitions. Second operand 7 states. [2020-10-28 12:04:59,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:04:59,857 INFO L93 Difference]: Finished difference Result 27684 states and 31488 transitions. [2020-10-28 12:04:59,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:04:59,858 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 836 [2020-10-28 12:04:59,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:04:59,860 INFO L225 Difference]: With dead ends: 27684 [2020-10-28 12:04:59,860 INFO L226 Difference]: Without dead ends: 0 [2020-10-28 12:04:59,887 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:04:59,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-28 12:04:59,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-28 12:04:59,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-28 12:04:59,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-28 12:04:59,888 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 836 [2020-10-28 12:04:59,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:04:59,889 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-28 12:04:59,889 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:04:59,889 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-28 12:04:59,889 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-28 12:04:59,889 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-28 12:04:59,892 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-28 12:05:00,546 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2020-10-28 12:05:02,059 WARN L193 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 328 DAG size of output: 182 [2020-10-28 12:05:02,472 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 328 DAG size of output: 182 [2020-10-28 12:05:03,087 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 30 [2020-10-28 12:05:08,101 WARN L193 SmtUtils]: Spent 4.95 s on a formula simplification. DAG size of input: 392 DAG size of output: 95 [2020-10-28 12:05:09,749 WARN L193 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 170 DAG size of output: 74 [2020-10-28 12:05:11,437 WARN L193 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 170 DAG size of output: 74 [2020-10-28 12:05:13,138 WARN L193 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 208 DAG size of output: 76 [2020-10-28 12:05:13,144 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-28 12:05:13,145 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-28 12:05:13,145 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-28 12:05:13,145 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-28 12:05:13,145 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-28 12:05:13,146 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)|) (= ~inputA~0 |old(~inputA~0)|) (= ~a25~0 |old(~a25~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~a23~0 |old(~a23~0)|) (= ~a8~0 |old(~a8~0)|) (= ~a29~0 |old(~a29~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= |old(#valid)| |#valid|) (= ~a3~0 |old(~a3~0)|) (= |#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)|)) [2020-10-28 12:05:13,146 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-28 12:05:13,146 INFO L274 CegarLoopResult]: For program point L960(lines 960 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,146 INFO L274 CegarLoopResult]: For program point L696(lines 696 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,146 INFO L274 CegarLoopResult]: For program point L630(lines 630 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,146 INFO L274 CegarLoopResult]: For program point L895(lines 895 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,146 INFO L274 CegarLoopResult]: For program point L697(lines 697 707) no Hoare annotation was computed. [2020-10-28 12:05:13,146 INFO L274 CegarLoopResult]: For program point L697-2(lines 697 707) no Hoare annotation was computed. [2020-10-28 12:05:13,146 INFO L274 CegarLoopResult]: For program point L367(lines 367 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,146 INFO L274 CegarLoopResult]: For program point L301(lines 301 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,147 INFO L274 CegarLoopResult]: For program point L235(lines 235 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,147 INFO L274 CegarLoopResult]: For program point L169-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,147 INFO L274 CegarLoopResult]: For program point L103-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,147 INFO L274 CegarLoopResult]: For program point L37-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,147 INFO L274 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2020-10-28 12:05:13,147 INFO L274 CegarLoopResult]: For program point L104(line 104) no Hoare annotation was computed. [2020-10-28 12:05:13,147 INFO L274 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-10-28 12:05:13,147 INFO L274 CegarLoopResult]: For program point L568(lines 568 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,147 INFO L274 CegarLoopResult]: For program point L502(lines 502 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,147 INFO L274 CegarLoopResult]: For program point L172-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,148 INFO L274 CegarLoopResult]: For program point L106-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,148 INFO L274 CegarLoopResult]: For program point L40-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,148 INFO L274 CegarLoopResult]: For program point L965(lines 965 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,148 INFO L274 CegarLoopResult]: For program point L833(lines 833 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,148 INFO L274 CegarLoopResult]: For program point L173(line 173) no Hoare annotation was computed. [2020-10-28 12:05:13,148 INFO L274 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-10-28 12:05:13,148 INFO L274 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-10-28 12:05:13,148 INFO L274 CegarLoopResult]: For program point L900(lines 900 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,148 INFO L274 CegarLoopResult]: For program point L438(lines 438 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,148 INFO L274 CegarLoopResult]: For program point L372(lines 372 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,149 INFO L274 CegarLoopResult]: For program point L637(lines 637 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,149 INFO L274 CegarLoopResult]: For program point L307(lines 307 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,149 INFO L274 CegarLoopResult]: For program point L175-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,149 INFO L274 CegarLoopResult]: For program point L109-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,149 INFO L274 CegarLoopResult]: For program point L43-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,149 INFO L274 CegarLoopResult]: For program point L242(lines 242 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,149 INFO L274 CegarLoopResult]: For program point L176(line 176) no Hoare annotation was computed. [2020-10-28 12:05:13,149 INFO L274 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-10-28 12:05:13,149 INFO L274 CegarLoopResult]: For program point L44(line 44) no Hoare annotation was computed. [2020-10-28 12:05:13,149 INFO L274 CegarLoopResult]: For program point L771(lines 771 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,150 INFO L274 CegarLoopResult]: For program point L838(lines 838 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,150 INFO L274 CegarLoopResult]: For program point L574(lines 574 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,150 INFO L274 CegarLoopResult]: For program point L178-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,150 INFO L274 CegarLoopResult]: For program point L112-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,150 INFO L274 CegarLoopResult]: For program point L46-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,150 INFO L274 CegarLoopResult]: For program point L971(lines 971 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,150 INFO L274 CegarLoopResult]: For program point L905(lines 905 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,150 INFO L274 CegarLoopResult]: For program point L509(lines 509 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,150 INFO L274 CegarLoopResult]: For program point L179(line 179) no Hoare annotation was computed. [2020-10-28 12:05:13,150 INFO L274 CegarLoopResult]: For program point L113(line 113) no Hoare annotation was computed. [2020-10-28 12:05:13,150 INFO L274 CegarLoopResult]: For program point L47(line 47) no Hoare annotation was computed. [2020-10-28 12:05:13,151 INFO L274 CegarLoopResult]: For program point L972(lines 972 982) no Hoare annotation was computed. [2020-10-28 12:05:13,151 INFO L274 CegarLoopResult]: For program point L906(lines 906 916) no Hoare annotation was computed. [2020-10-28 12:05:13,151 INFO L274 CegarLoopResult]: For program point L972-2(lines 972 982) no Hoare annotation was computed. [2020-10-28 12:05:13,151 INFO L274 CegarLoopResult]: For program point L906-2(lines 906 916) no Hoare annotation was computed. [2020-10-28 12:05:13,151 INFO L274 CegarLoopResult]: For program point L708(lines 708 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,151 INFO L274 CegarLoopResult]: For program point L312(lines 312 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,151 INFO L274 CegarLoopResult]: For program point L577(lines 577 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,151 INFO L274 CegarLoopResult]: For program point L445(lines 445 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,151 INFO L274 CegarLoopResult]: For program point L379(lines 379 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,151 INFO L274 CegarLoopResult]: For program point L181-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,152 INFO L274 CegarLoopResult]: For program point L115-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,152 INFO L274 CegarLoopResult]: For program point L49-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,152 INFO L274 CegarLoopResult]: For program point L776(lines 776 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,152 INFO L274 CegarLoopResult]: For program point L644(lines 644 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,152 INFO L274 CegarLoopResult]: For program point L182(line 182) no Hoare annotation was computed. [2020-10-28 12:05:13,152 INFO L274 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-10-28 12:05:13,152 INFO L274 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-10-28 12:05:13,152 INFO L274 CegarLoopResult]: For program point L843(lines 843 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,152 INFO L274 CegarLoopResult]: For program point L249(lines 249 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,152 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,153 INFO L274 CegarLoopResult]: For program point L184-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,153 INFO L274 CegarLoopResult]: For program point L118-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,153 INFO L274 CegarLoopResult]: For program point L52-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,153 INFO L274 CegarLoopResult]: For program point L185(line 185) no Hoare annotation was computed. [2020-10-28 12:05:13,153 INFO L274 CegarLoopResult]: For program point L119(line 119) no Hoare annotation was computed. [2020-10-28 12:05:13,153 INFO L274 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-10-28 12:05:13,153 INFO L274 CegarLoopResult]: For program point L714(lines 714 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,153 INFO L274 CegarLoopResult]: For program point L516(lines 516 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,153 INFO L274 CegarLoopResult]: For program point L649(lines 649 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,153 INFO L274 CegarLoopResult]: For program point L583(lines 583 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,153 INFO L274 CegarLoopResult]: For program point L517(lines 517 527) no Hoare annotation was computed. [2020-10-28 12:05:13,154 INFO L274 CegarLoopResult]: For program point L517-2(lines 517 527) no Hoare annotation was computed. [2020-10-28 12:05:13,154 INFO L274 CegarLoopResult]: For program point L319(lines 319 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,154 INFO L274 CegarLoopResult]: For program point L187-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,154 INFO L274 CegarLoopResult]: For program point L121-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,154 INFO L274 CegarLoopResult]: For program point L55-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,154 INFO L274 CegarLoopResult]: For program point L848(lines 848 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,154 INFO L274 CegarLoopResult]: For program point L782(lines 782 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,154 INFO L274 CegarLoopResult]: For program point L650(lines 650 659) no Hoare annotation was computed. [2020-10-28 12:05:13,154 INFO L274 CegarLoopResult]: For program point L650-2(lines 650 659) no Hoare annotation was computed. [2020-10-28 12:05:13,154 INFO L274 CegarLoopResult]: For program point L452(lines 452 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,155 INFO L274 CegarLoopResult]: For program point L386(lines 386 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,155 INFO L274 CegarLoopResult]: For program point L188(line 188) no Hoare annotation was computed. [2020-10-28 12:05:13,155 INFO L274 CegarLoopResult]: For program point L122(line 122) no Hoare annotation was computed. [2020-10-28 12:05:13,155 INFO L274 CegarLoopResult]: For program point L56(line 56) no Hoare annotation was computed. [2020-10-28 12:05:13,155 INFO L274 CegarLoopResult]: For program point L256(lines 256 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,155 INFO L274 CegarLoopResult]: For program point L190-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,155 INFO L274 CegarLoopResult]: For program point L124-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,155 INFO L274 CegarLoopResult]: For program point L58-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,155 INFO L274 CegarLoopResult]: For program point L983(lines 983 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,155 INFO L274 CegarLoopResult]: For program point L917(lines 917 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,155 INFO L274 CegarLoopResult]: For program point L719(lines 719 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,156 INFO L274 CegarLoopResult]: For program point L191(line 191) no Hoare annotation was computed. [2020-10-28 12:05:13,156 INFO L274 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2020-10-28 12:05:13,156 INFO L274 CegarLoopResult]: For program point L59(line 59) no Hoare annotation was computed. [2020-10-28 12:05:13,156 INFO L274 CegarLoopResult]: For program point L918(lines 918 928) no Hoare annotation was computed. [2020-10-28 12:05:13,156 INFO L274 CegarLoopResult]: For program point L918-2(lines 918 928) no Hoare annotation was computed. [2020-10-28 12:05:13,156 INFO L274 CegarLoopResult]: For program point L720(lines 720 732) no Hoare annotation was computed. [2020-10-28 12:05:13,156 INFO L274 CegarLoopResult]: For program point L720-2(lines 720 732) no Hoare annotation was computed. [2020-10-28 12:05:13,156 INFO L274 CegarLoopResult]: For program point L588(lines 588 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,157 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 24 1028) the Hoare annotation is: (let ((.cse17 (= ~a25~0 |old(~a25~0)|)) (.cse18 (= ~a23~0 |old(~a23~0)|)) (.cse19 (= ~a29~0 |old(~a29~0)|))) (let ((.cse12 (not (<= (+ |old(~a29~0)| 28445) 0))) (.cse7 (not (= 10 |old(~a25~0)|))) (.cse11 (not (<= |old(~a29~0)| 220))) (.cse1 (not (= 12 |old(~a25~0)|))) (.cse8 (not (<= |old(~a29~0)| 274))) (.cse15 (not (<= 0 (+ |old(~a23~0)| 42)))) (.cse9 (not (= 13 |old(~a25~0)|))) (.cse10 (not (<= |old(~a29~0)| 140))) (.cse6 (not (<= 138 |old(~a23~0)|))) (.cse2 (and .cse17 .cse18 .cse19 (= ~a4~0 |old(~a4~0)|))) (.cse16 (not (= 11 |old(~a25~0)|))) (.cse3 (not (<= |old(~a4~0)| 0))) (.cse4 (not (= |old(~a4~0)| 1))) (.cse5 (and .cse17 .cse18 .cse19 (= ~a4~0 1))) (.cse0 (not (= ~a8~0 15))) (.cse14 (not (<= 246 |old(~a29~0)|))) (.cse13 (not (= 9 |old(~a25~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse0 .cse1 .cse6) (or .cse4 .cse0 .cse5 .cse7) (or .cse4 .cse8 .cse5 .cse0 .cse9) (or .cse4 .cse10 .cse0 .cse1 .cse2 .cse11) (or .cse0 .cse12 .cse2 .cse13 .cse3) (or .cse0 .cse2 .cse14 .cse13 .cse3) (or .cse4 .cse5 .cse0 .cse15 .cse13) (or .cse10 .cse0 .cse15 .cse7 .cse2 .cse3) (or .cse10 .cse0 .cse15 .cse2 .cse13 .cse3) (or .cse0 .cse12 .cse7 .cse2 .cse3) (or .cse4 .cse5 .cse0 .cse15 .cse1 .cse11) (or .cse4 .cse0 .cse5 .cse15 .cse14 .cse16) (or .cse2 (and (or .cse4 .cse8 .cse0 .cse1 .cse14) (or .cse4 .cse8 .cse0 .cse14 .cse16))) (or .cse0 .cse9 .cse15 .cse2 .cse3) (or .cse4 .cse5 .cse0 .cse9 .cse6) (or .cse10 .cse0 .cse2 .cse16 .cse3) (or .cse4 .cse5 .cse0 .cse6 .cse16) (or .cse0 .cse14 .cse2 .cse16 .cse3) (or .cse4 .cse5 .cse0 .cse14 .cse13)))) [2020-10-28 12:05:13,157 INFO L274 CegarLoopResult]: For program point L324(lines 324 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,157 INFO L274 CegarLoopResult]: For program point L589(lines 589 599) no Hoare annotation was computed. [2020-10-28 12:05:13,157 INFO L274 CegarLoopResult]: For program point L589-2(lines 589 599) no Hoare annotation was computed. [2020-10-28 12:05:13,157 INFO L274 CegarLoopResult]: For program point L193-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,157 INFO L274 CegarLoopResult]: For program point L127-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,157 INFO L274 CegarLoopResult]: For program point L61-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,157 INFO L274 CegarLoopResult]: For program point L854(lines 854 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,157 INFO L274 CegarLoopResult]: For program point L458(lines 458 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,158 INFO L274 CegarLoopResult]: For program point L194(line 194) no Hoare annotation was computed. [2020-10-28 12:05:13,158 INFO L274 CegarLoopResult]: For program point L128(line 128) no Hoare annotation was computed. [2020-10-28 12:05:13,158 INFO L274 CegarLoopResult]: For program point L62(line 62) no Hoare annotation was computed. [2020-10-28 12:05:13,158 INFO L274 CegarLoopResult]: For program point L789(lines 789 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,158 INFO L274 CegarLoopResult]: For program point L393(lines 393 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,158 INFO L274 CegarLoopResult]: For program point L262(lines 262 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,158 INFO L274 CegarLoopResult]: For program point L196-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,158 INFO L274 CegarLoopResult]: For program point L130-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,158 INFO L274 CegarLoopResult]: For program point L64-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,159 INFO L270 CegarLoopResult]: At program point L197(line 197) the Hoare annotation is: (let ((.cse14 (not (<= |old(~a29~0)| 274))) (.cse7 (not (<= (+ |old(~a29~0)| 28445) 0))) (.cse9 (not (<= 246 |old(~a29~0)|))) (.cse3 (not (= 9 |old(~a25~0)|))) (.cse5 (not (= 12 |old(~a25~0)|))) (.cse13 (not (<= |old(~a29~0)| 220))) (.cse2 (not (<= 0 (+ |old(~a23~0)| 42)))) (.cse4 (not (= 10 |old(~a25~0)|))) (.cse0 (not (= |old(~a4~0)| 1))) (.cse11 (not (= 13 |old(~a25~0)|))) (.cse6 (not (<= 138 |old(~a23~0)|))) (.cse12 (not (<= |old(~a29~0)| 140))) (.cse1 (not (= ~a8~0 15))) (.cse10 (not (= 11 |old(~a25~0)|))) (.cse8 (not (<= |old(~a4~0)| 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse4) (or .cse0 .cse1 .cse5 .cse6) (or .cse1 .cse7 .cse4 .cse8) (or .cse0 .cse1 .cse9 .cse3) (or .cse1 .cse5 .cse8) (or .cse0 .cse1 .cse6 .cse10) (or .cse1 .cse11 .cse2 .cse8) (or .cse0 .cse12 .cse1 .cse5 .cse13) (or .cse0 .cse14 .cse1 .cse5 .cse9) (or .cse0 .cse1 .cse2 .cse9 .cse10) (or .cse0 .cse14 .cse1 .cse9 .cse10) (or .cse0 .cse14 .cse1 .cse11) (or .cse1 .cse7 .cse3 .cse8) (or .cse1 .cse9 .cse3 .cse8) (or .cse1 .cse9 .cse10 .cse8) (or .cse12 .cse1 .cse2 .cse3 .cse8) (or .cse0 .cse1 .cse2 .cse5 .cse13) (or .cse12 .cse1 .cse2 .cse4 .cse8) (or .cse0 .cse1 .cse11 .cse6) (or .cse12 .cse1 .cse10 .cse8))) [2020-10-28 12:05:13,159 INFO L274 CegarLoopResult]: For program point L197-1(line 197) no Hoare annotation was computed. [2020-10-28 12:05:13,159 INFO L274 CegarLoopResult]: For program point L131(line 131) no Hoare annotation was computed. [2020-10-28 12:05:13,159 INFO L274 CegarLoopResult]: For program point L65(line 65) no Hoare annotation was computed. [2020-10-28 12:05:13,159 INFO L274 CegarLoopResult]: For program point L990(lines 990 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,159 INFO L274 CegarLoopResult]: For program point L660(lines 660 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,159 INFO L274 CegarLoopResult]: For program point L528(lines 528 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,159 INFO L274 CegarLoopResult]: For program point L331(lines 331 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,159 INFO L274 CegarLoopResult]: For program point L199-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,159 INFO L274 CegarLoopResult]: For program point L133-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,159 INFO L274 CegarLoopResult]: For program point L67-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,159 INFO L274 CegarLoopResult]: For program point L794(lines 794 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,159 INFO L274 CegarLoopResult]: For program point L200(line 200) no Hoare annotation was computed. [2020-10-28 12:05:13,159 INFO L274 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-10-28 12:05:13,159 INFO L274 CegarLoopResult]: For program point L68(line 68) no Hoare annotation was computed. [2020-10-28 12:05:13,160 INFO L274 CegarLoopResult]: For program point L861(lines 861 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,160 INFO L274 CegarLoopResult]: For program point L465(lines 465 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,160 INFO L274 CegarLoopResult]: For program point L267(lines 267 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,160 INFO L274 CegarLoopResult]: For program point L400(lines 400 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,160 INFO L274 CegarLoopResult]: For program point L202-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,160 INFO L274 CegarLoopResult]: For program point L136-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,160 INFO L274 CegarLoopResult]: For program point L70-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,160 INFO L274 CegarLoopResult]: For program point L995(lines 995 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,160 INFO L274 CegarLoopResult]: For program point L929(lines 929 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,160 INFO L274 CegarLoopResult]: For program point L665(lines 665 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,160 INFO L274 CegarLoopResult]: For program point L533(lines 533 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,160 INFO L274 CegarLoopResult]: For program point L401(lines 401 412) no Hoare annotation was computed. [2020-10-28 12:05:13,160 INFO L274 CegarLoopResult]: For program point L401-2(lines 401 412) no Hoare annotation was computed. [2020-10-28 12:05:13,160 INFO L274 CegarLoopResult]: For program point L203(line 203) no Hoare annotation was computed. [2020-10-28 12:05:13,160 INFO L274 CegarLoopResult]: For program point L137(line 137) no Hoare annotation was computed. [2020-10-28 12:05:13,160 INFO L274 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2020-10-28 12:05:13,160 INFO L274 CegarLoopResult]: For program point L600(lines 600 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,160 INFO L274 CegarLoopResult]: For program point L336(lines 336 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,161 INFO L274 CegarLoopResult]: For program point L270(lines 270 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,161 INFO L274 CegarLoopResult]: For program point L733(lines 733 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,161 INFO L274 CegarLoopResult]: For program point L205-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,161 INFO L274 CegarLoopResult]: For program point L139-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,161 INFO L274 CegarLoopResult]: For program point L73-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,161 INFO L274 CegarLoopResult]: For program point L206(line 206) no Hoare annotation was computed. [2020-10-28 12:05:13,161 INFO L274 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2020-10-28 12:05:13,161 INFO L274 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2020-10-28 12:05:13,161 INFO L274 CegarLoopResult]: For program point L867(lines 867 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,161 INFO L274 CegarLoopResult]: For program point L801(lines 801 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,161 INFO L274 CegarLoopResult]: For program point L934(lines 934 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,161 INFO L274 CegarLoopResult]: For program point L868(lines 868 877) no Hoare annotation was computed. [2020-10-28 12:05:13,161 INFO L274 CegarLoopResult]: For program point L868-2(lines 868 877) no Hoare annotation was computed. [2020-10-28 12:05:13,161 INFO L274 CegarLoopResult]: For program point L472(lines 472 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,161 INFO L274 CegarLoopResult]: For program point L142-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,161 INFO L274 CegarLoopResult]: For program point L76-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,161 INFO L274 CegarLoopResult]: For program point L605(lines 605 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,161 INFO L274 CegarLoopResult]: For program point L539(lines 539 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,161 INFO L274 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2020-10-28 12:05:13,162 INFO L274 CegarLoopResult]: For program point L77(line 77) no Hoare annotation was computed. [2020-10-28 12:05:13,162 INFO L274 CegarLoopResult]: For program point L1002(lines 1002 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,162 INFO L274 CegarLoopResult]: For program point L672(lines 672 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,162 INFO L274 CegarLoopResult]: For program point L606(lines 606 616) no Hoare annotation was computed. [2020-10-28 12:05:13,162 INFO L274 CegarLoopResult]: For program point L606-2(lines 606 616) no Hoare annotation was computed. [2020-10-28 12:05:13,162 INFO L274 CegarLoopResult]: For program point L342(lines 342 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,162 INFO L274 CegarLoopResult]: For program point L277(lines 277 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,162 INFO L274 CegarLoopResult]: For program point L145-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,162 INFO L274 CegarLoopResult]: For program point L79-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,162 INFO L274 CegarLoopResult]: For program point L806(lines 806 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,162 INFO L274 CegarLoopResult]: For program point L740(lines 740 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,162 INFO L274 CegarLoopResult]: For program point L146(line 146) no Hoare annotation was computed. [2020-10-28 12:05:13,162 INFO L274 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-10-28 12:05:13,162 INFO L274 CegarLoopResult]: For program point L807(lines 807 817) no Hoare annotation was computed. [2020-10-28 12:05:13,162 INFO L274 CegarLoopResult]: For program point L807-2(lines 807 817) no Hoare annotation was computed. [2020-10-28 12:05:13,162 INFO L274 CegarLoopResult]: For program point L544(lines 544 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,162 INFO L274 CegarLoopResult]: For program point L148-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,162 INFO L274 CegarLoopResult]: For program point L82-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,163 INFO L274 CegarLoopResult]: For program point L1007(lines 1007 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,163 INFO L274 CegarLoopResult]: For program point L941(lines 941 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,163 INFO L274 CegarLoopResult]: For program point L677(lines 677 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,163 INFO L274 CegarLoopResult]: For program point L479(lines 479 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,163 INFO L274 CegarLoopResult]: For program point L413(lines 413 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,163 INFO L274 CegarLoopResult]: For program point L149(line 149) no Hoare annotation was computed. [2020-10-28 12:05:13,163 INFO L274 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-10-28 12:05:13,163 INFO L274 CegarLoopResult]: For program point L942(lines 942 954) no Hoare annotation was computed. [2020-10-28 12:05:13,163 INFO L274 CegarLoopResult]: For program point L942-2(lines 942 954) no Hoare annotation was computed. [2020-10-28 12:05:13,163 INFO L274 CegarLoopResult]: For program point L480(lines 480 488) no Hoare annotation was computed. [2020-10-28 12:05:13,163 INFO L274 CegarLoopResult]: For program point L480-2(lines 480 488) no Hoare annotation was computed. [2020-10-28 12:05:13,163 INFO L274 CegarLoopResult]: For program point L348(lines 348 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,163 INFO L274 CegarLoopResult]: For program point L282(lines 282 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,163 INFO L274 CegarLoopResult]: For program point L216(lines 216 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,163 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,163 INFO L274 CegarLoopResult]: For program point L745(lines 745 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,163 INFO L274 CegarLoopResult]: For program point L151-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,163 INFO L274 CegarLoopResult]: For program point L85-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,164 INFO L274 CegarLoopResult]: For program point L878(lines 878 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,164 INFO L274 CegarLoopResult]: For program point L152(line 152) no Hoare annotation was computed. [2020-10-28 12:05:13,164 INFO L274 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-10-28 12:05:13,164 INFO L274 CegarLoopResult]: For program point L154-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,164 INFO L274 CegarLoopResult]: For program point L88-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,164 INFO L274 CegarLoopResult]: For program point L683(lines 683 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,164 INFO L274 CegarLoopResult]: For program point L617(lines 617 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,164 INFO L274 CegarLoopResult]: For program point L551(lines 551 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,164 INFO L274 CegarLoopResult]: For program point L419(lines 419 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,164 INFO L274 CegarLoopResult]: For program point L155(line 155) no Hoare annotation was computed. [2020-10-28 12:05:13,164 INFO L274 CegarLoopResult]: For program point L89(line 89) no Hoare annotation was computed. [2020-10-28 12:05:13,164 INFO L274 CegarLoopResult]: For program point L1014(lines 1014 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,164 INFO L274 CegarLoopResult]: For program point L883(lines 883 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,164 INFO L274 CegarLoopResult]: For program point L355(lines 355 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,164 INFO L274 CegarLoopResult]: For program point L289(lines 289 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,164 INFO L274 CegarLoopResult]: For program point L223(lines 223 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,164 INFO L274 CegarLoopResult]: For program point L157-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,164 INFO L274 CegarLoopResult]: For program point L91-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,165 INFO L274 CegarLoopResult]: For program point L25(lines 25 27) no Hoare annotation was computed. [2020-10-28 12:05:13,165 INFO L274 CegarLoopResult]: For program point L25-2(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,165 INFO L274 CegarLoopResult]: For program point L818(lines 818 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,165 INFO L274 CegarLoopResult]: For program point L752(lines 752 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,165 INFO L274 CegarLoopResult]: For program point L158(line 158) no Hoare annotation was computed. [2020-10-28 12:05:13,165 INFO L274 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-10-28 12:05:13,165 INFO L274 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed. [2020-10-28 12:05:13,165 INFO L274 CegarLoopResult]: For program point L489(lines 489 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,165 INFO L274 CegarLoopResult]: For program point L490(lines 490 501) no Hoare annotation was computed. [2020-10-28 12:05:13,165 INFO L274 CegarLoopResult]: For program point L424(lines 424 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,165 INFO L274 CegarLoopResult]: For program point L490-2(lines 490 501) no Hoare annotation was computed. [2020-10-28 12:05:13,165 INFO L274 CegarLoopResult]: For program point L160-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,165 INFO L274 CegarLoopResult]: For program point L94-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,166 INFO L274 CegarLoopResult]: For program point L28-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,166 INFO L274 CegarLoopResult]: For program point L1019(lines 1019 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,166 INFO L274 CegarLoopResult]: For program point L623(lines 623 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,166 INFO L274 CegarLoopResult]: For program point L557(lines 557 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,166 INFO L274 CegarLoopResult]: For program point L161(line 161) no Hoare annotation was computed. [2020-10-28 12:05:13,166 INFO L274 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2020-10-28 12:05:13,166 INFO L274 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-10-28 12:05:13,166 INFO L274 CegarLoopResult]: For program point L888(lines 888 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,166 INFO L274 CegarLoopResult]: For program point L690(lines 690 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,166 INFO L274 CegarLoopResult]: For program point L360(lines 360 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,167 INFO L274 CegarLoopResult]: For program point L955(lines 955 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,167 INFO L274 CegarLoopResult]: For program point L229(lines 229 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,167 INFO L274 CegarLoopResult]: For program point L163-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,167 INFO L274 CegarLoopResult]: For program point L97-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,167 INFO L274 CegarLoopResult]: For program point L31-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,167 INFO L274 CegarLoopResult]: For program point L824(lines 824 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,167 INFO L274 CegarLoopResult]: For program point L296(lines 296 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,167 INFO L274 CegarLoopResult]: For program point L164(line 164) no Hoare annotation was computed. [2020-10-28 12:05:13,167 INFO L274 CegarLoopResult]: For program point L98(line 98) no Hoare annotation was computed. [2020-10-28 12:05:13,167 INFO L274 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-10-28 12:05:13,167 INFO L274 CegarLoopResult]: For program point L759(lines 759 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,168 INFO L274 CegarLoopResult]: For program point L760(lines 760 770) no Hoare annotation was computed. [2020-10-28 12:05:13,168 INFO L274 CegarLoopResult]: For program point L760-2(lines 760 770) no Hoare annotation was computed. [2020-10-28 12:05:13,168 INFO L274 CegarLoopResult]: For program point L166-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,168 INFO L274 CegarLoopResult]: For program point L100-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,168 INFO L274 CegarLoopResult]: For program point L34-1(lines 24 1028) no Hoare annotation was computed. [2020-10-28 12:05:13,168 INFO L274 CegarLoopResult]: For program point L827(lines 827 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,168 INFO L274 CegarLoopResult]: For program point L563(lines 563 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,168 INFO L274 CegarLoopResult]: For program point L431(lines 431 1026) no Hoare annotation was computed. [2020-10-28 12:05:13,168 INFO L274 CegarLoopResult]: For program point L167(line 167) no Hoare annotation was computed. [2020-10-28 12:05:13,168 INFO L274 CegarLoopResult]: For program point L101(line 101) no Hoare annotation was computed. [2020-10-28 12:05:13,168 INFO L274 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-10-28 12:05:13,168 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-28 12:05:13,169 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a25~0 10) (= ~a8~0 15) (= ~a29~0 130) (= ~a4~0 1) (= ~a23~0 312)) [2020-10-28 12:05:13,169 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-28 12:05:13,169 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-28 12:05:13,169 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 1030 1046) the Hoare annotation is: (or (not (= |old(~a4~0)| 1)) (not (= 312 |old(~a23~0)|)) (not (= 130 |old(~a29~0)|)) (not (= ~a8~0 15)) (and (= ~a25~0 |old(~a25~0)|) (= ~a29~0 130) (= ~a4~0 1) (= ~a23~0 312)) (not (= 10 |old(~a25~0)|))) [2020-10-28 12:05:13,169 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 1030 1046) no Hoare annotation was computed. [2020-10-28 12:05:13,169 INFO L270 CegarLoopResult]: At program point L1044(line 1044) the Hoare annotation is: (let ((.cse1 (= ~a25~0 12)) (.cse10 (<= 246 ~a29~0)) (.cse8 (= ~a25~0 13)) (.cse11 (<= ~a29~0 274)) (.cse3 (<= 138 ~a23~0)) (.cse4 (= ~a25~0 11)) (.cse2 (= ~a4~0 1)) (.cse12 (<= (+ ~a29~0 28445) 0)) (.cse6 (= ~a25~0 10)) (.cse9 (= ~a25~0 9)) (.cse5 (<= ~a4~0 0)) (.cse7 (<= 0 (+ ~a23~0 42))) (.cse0 (<= ~a29~0 140))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse1 .cse2) (not (= ~a8~0 15)) (and .cse4 .cse5 .cse0) (and .cse5 .cse6 .cse7 .cse0) (and .cse5 .cse8 .cse7) (and .cse9 .cse5 .cse10) (and .cse4 .cse5 .cse10) (and .cse4 .cse11 .cse2 .cse10) (and .cse4 .cse7 .cse2 .cse10) (not (= 130 |old(~a29~0)|)) (and .cse5 .cse1) (and .cse9 .cse2 .cse10) (not (= 10 |old(~a25~0)|)) (and .cse3 .cse8 .cse2) (and .cse6 .cse2) (and .cse7 .cse1 (<= ~a29~0 220) .cse2) (and .cse11 .cse1 .cse2 .cse10) (and .cse12 .cse9 .cse5) (not (= |old(~a4~0)| 1)) (and .cse8 .cse11 .cse2) (not (= 312 |old(~a23~0)|)) (and .cse3 .cse4 .cse2) (and .cse9 .cse7 .cse2) (and .cse12 .cse5 .cse6) (and .cse9 .cse5 .cse7 .cse0))) [2020-10-28 12:05:13,169 INFO L274 CegarLoopResult]: For program point L1044-1(line 1044) no Hoare annotation was computed. [2020-10-28 12:05:13,170 INFO L274 CegarLoopResult]: For program point L1041(line 1041) no Hoare annotation was computed. [2020-10-28 12:05:13,170 INFO L270 CegarLoopResult]: At program point L1036-2(lines 1036 1045) the Hoare annotation is: (let ((.cse1 (= ~a25~0 12)) (.cse10 (<= 246 ~a29~0)) (.cse8 (= ~a25~0 13)) (.cse11 (<= ~a29~0 274)) (.cse3 (<= 138 ~a23~0)) (.cse4 (= ~a25~0 11)) (.cse2 (= ~a4~0 1)) (.cse12 (<= (+ ~a29~0 28445) 0)) (.cse6 (= ~a25~0 10)) (.cse9 (= ~a25~0 9)) (.cse5 (<= ~a4~0 0)) (.cse7 (<= 0 (+ ~a23~0 42))) (.cse0 (<= ~a29~0 140))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse1 .cse2) (not (= ~a8~0 15)) (and .cse4 .cse5 .cse0) (and .cse5 .cse6 .cse7 .cse0) (and .cse5 .cse8 .cse7) (and .cse9 .cse5 .cse10) (and .cse4 .cse5 .cse10) (and .cse4 .cse11 .cse2 .cse10) (and .cse4 .cse7 .cse2 .cse10) (not (= 130 |old(~a29~0)|)) (and .cse5 .cse1) (and .cse9 .cse2 .cse10) (not (= 10 |old(~a25~0)|)) (and .cse3 .cse8 .cse2) (and .cse6 .cse2) (and .cse7 .cse1 (<= ~a29~0 220) .cse2) (and .cse11 .cse1 .cse2 .cse10) (and .cse12 .cse9 .cse5) (not (= |old(~a4~0)| 1)) (and .cse8 .cse11 .cse2) (not (= 312 |old(~a23~0)|)) (and .cse3 .cse4 .cse2) (and .cse9 .cse7 .cse2) (and .cse12 .cse5 .cse6) (and .cse9 .cse5 .cse7 .cse0))) [2020-10-28 12:05:13,170 INFO L274 CegarLoopResult]: For program point L1036-3(lines 1030 1046) no Hoare annotation was computed. [2020-10-28 12:05:13,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 12:05:13 BoogieIcfgContainer [2020-10-28 12:05:13,196 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 12:05:13,198 INFO L168 Benchmark]: Toolchain (without parser) took 170759.66 ms. Allocated memory was 154.1 MB in the beginning and 2.0 GB in the end (delta: 1.9 GB). Free memory was 106.0 MB in the beginning and 1.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.2 GB. Max. memory is 8.0 GB. [2020-10-28 12:05:13,198 INFO L168 Benchmark]: CDTParser took 1.59 ms. Allocated memory is still 154.1 MB. Free memory is still 126.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 12:05:13,200 INFO L168 Benchmark]: CACSL2BoogieTranslator took 991.10 ms. Allocated memory is still 154.1 MB. Free memory was 105.5 MB in the beginning and 115.7 MB in the end (delta: -10.2 MB). Peak memory consumption was 34.9 MB. Max. memory is 8.0 GB. [2020-10-28 12:05:13,201 INFO L168 Benchmark]: Boogie Preprocessor took 196.98 ms. Allocated memory is still 154.1 MB. Free memory was 115.7 MB in the beginning and 108.4 MB in the end (delta: 7.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 8.0 GB. [2020-10-28 12:05:13,201 INFO L168 Benchmark]: RCFGBuilder took 2332.20 ms. Allocated memory is still 154.1 MB. Free memory was 107.9 MB in the beginning and 70.9 MB in the end (delta: 37.0 MB). Peak memory consumption was 57.8 MB. Max. memory is 8.0 GB. [2020-10-28 12:05:13,202 INFO L168 Benchmark]: TraceAbstraction took 167222.47 ms. Allocated memory was 154.1 MB in the beginning and 2.0 GB in the end (delta: 1.9 GB). Free memory was 70.4 MB in the beginning and 1.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.2 GB. Max. memory is 8.0 GB. [2020-10-28 12:05:13,205 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.59 ms. Allocated memory is still 154.1 MB. Free memory is still 126.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 991.10 ms. Allocated memory is still 154.1 MB. Free memory was 105.5 MB in the beginning and 115.7 MB in the end (delta: -10.2 MB). Peak memory consumption was 34.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 196.98 ms. Allocated memory is still 154.1 MB. Free memory was 115.7 MB in the beginning and 108.4 MB in the end (delta: 7.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 2332.20 ms. Allocated memory is still 154.1 MB. Free memory was 107.9 MB in the beginning and 70.9 MB in the end (delta: 37.0 MB). Peak memory consumption was 57.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 167222.47 ms. Allocated memory was 154.1 MB in the beginning and 2.0 GB in the end (delta: 1.9 GB). Free memory was 70.4 MB in the beginning and 1.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.2 GB. 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: 1036]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((a29 <= 140 && a25 == 12) && a4 == 1) || ((138 <= a23 && a25 == 12) && a4 == 1)) || !(a8 == 15)) || ((a25 == 11 && a4 <= 0) && a29 <= 140)) || (((a4 <= 0 && a25 == 10) && 0 <= a23 + 42) && a29 <= 140)) || ((a4 <= 0 && a25 == 13) && 0 <= a23 + 42)) || ((a25 == 9 && a4 <= 0) && 246 <= a29)) || ((a25 == 11 && a4 <= 0) && 246 <= a29)) || (((a25 == 11 && a29 <= 274) && a4 == 1) && 246 <= a29)) || (((a25 == 11 && 0 <= a23 + 42) && a4 == 1) && 246 <= a29)) || !(130 == \old(a29))) || (a4 <= 0 && a25 == 12)) || ((a25 == 9 && a4 == 1) && 246 <= a29)) || !(10 == \old(a25))) || ((138 <= a23 && a25 == 13) && a4 == 1)) || (a25 == 10 && a4 == 1)) || (((0 <= a23 + 42 && a25 == 12) && a29 <= 220) && a4 == 1)) || (((a29 <= 274 && a25 == 12) && a4 == 1) && 246 <= a29)) || ((a29 + 28445 <= 0 && a25 == 9) && a4 <= 0)) || !(\old(a4) == 1)) || ((a25 == 13 && a29 <= 274) && a4 == 1)) || !(312 == \old(a23))) || ((138 <= a23 && a25 == 11) && a4 == 1)) || ((a25 == 9 && 0 <= a23 + 42) && a4 == 1)) || ((a29 + 28445 <= 0 && a4 <= 0) && a25 == 10)) || (((a25 == 9 && a4 <= 0) && 0 <= a23 + 42) && a29 <= 140) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 296 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 153.8s, OverallIterations: 21, TraceHistogramMax: 7, AutomataDifference: 75.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 13.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 995 SDtfs, 11621 SDslu, 1722 SDs, 0 SdLazy, 28978 SolverSat, 3602 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 51.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 348 GetRequests, 194 SyntacticMatches, 2 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 5.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14717occurred in iteration=20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.5s AutomataMinimizationTime, 21 MinimizatonAttempts, 4430 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 1367 PreInvPairs, 1541 NumberOfFragments, 1687 HoareAnnotationTreeSize, 1367 FomulaSimplifications, 82652 FormulaSimplificationTreeSizeReduction, 2.9s HoareSimplificationTime, 9 FomulaSimplificationsInter, 17376 FormulaSimplificationTreeSizeReductionInter, 10.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 69.6s InterpolantComputationTime, 7234 NumberOfCodeBlocks, 7234 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 7213 ConstructedInterpolants, 0 QuantifiedInterpolants, 5594539 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 4 PerfectInterpolantSequences, 7939/8187 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...