/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label11.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 20:31:52,106 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 20:31:52,109 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 20:31:52,164 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 20:31:52,165 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 20:31:52,172 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 20:31:52,175 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 20:31:52,180 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 20:31:52,184 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 20:31:52,190 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 20:31:52,191 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 20:31:52,193 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 20:31:52,193 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 20:31:52,197 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 20:31:52,199 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 20:31:52,201 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 20:31:52,203 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 20:31:52,206 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 20:31:52,213 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 20:31:52,222 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 20:31:52,224 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 20:31:52,226 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 20:31:52,227 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 20:31:52,230 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 20:31:52,238 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 20:31:52,253 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 20:31:52,253 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 20:31:52,257 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 20:31:52,257 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 20:31:52,258 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 20:31:52,258 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 20:31:52,259 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 20:31:52,261 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 20:31:52,262 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 20:31:52,263 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 20:31:52,263 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 20:31:52,264 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 20:31:52,264 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 20:31:52,265 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 20:31:52,265 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 20:31:52,266 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 20:31:52,277 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-26 20:31:52,354 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 20:31:52,354 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 20:31:52,359 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 20:31:52,359 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 20:31:52,359 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 20:31:52,360 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 20:31:52,360 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 20:31:52,360 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 20:31:52,360 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 20:31:52,360 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 20:31:52,362 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 20:31:52,362 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 20:31:52,362 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 20:31:52,362 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 20:31:52,362 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 20:31:52,363 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 20:31:52,363 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 20:31:52,363 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 20:31:52,363 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 20:31:52,363 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 20:31:52,364 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 20:31:52,364 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 20:31:52,364 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 20:31:52,364 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 20:31:52,364 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 20:31:52,365 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 20:31:52,365 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 20:31:52,365 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 20:31:52,365 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 20:31:52,365 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 20:31:52,779 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 20:31:52,810 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 20:31:52,813 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 20:31:52,814 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 20:31:52,815 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 20:31:52,816 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label11.c [2020-10-26 20:31:52,906 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/df8c68de9/52ec55267b7a4376af417455f626409a/FLAG34a32361b [2020-10-26 20:31:53,557 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 20:31:53,558 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label11.c [2020-10-26 20:31:53,571 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/df8c68de9/52ec55267b7a4376af417455f626409a/FLAG34a32361b [2020-10-26 20:31:53,802 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/df8c68de9/52ec55267b7a4376af417455f626409a [2020-10-26 20:31:53,807 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 20:31:53,815 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 20:31:53,820 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 20:31:53,820 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 20:31:53,825 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 20:31:53,826 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:31:53" (1/1) ... [2020-10-26 20:31:53,832 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2675cbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:31:53, skipping insertion in model container [2020-10-26 20:31:53,832 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:31:53" (1/1) ... [2020-10-26 20:31:53,841 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 20:31:53,916 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 20:31:54,353 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:31:54,365 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 20:31:54,562 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:31:54,581 INFO L208 MainTranslator]: Completed translation [2020-10-26 20:31:54,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:31:54 WrapperNode [2020-10-26 20:31:54,582 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 20:31:54,583 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 20:31:54,583 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 20:31:54,584 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 20:31:54,598 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:31:54" (1/1) ... [2020-10-26 20:31:54,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:31:54" (1/1) ... [2020-10-26 20:31:54,635 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:31:54" (1/1) ... [2020-10-26 20:31:54,635 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:31:54" (1/1) ... [2020-10-26 20:31:54,681 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:31:54" (1/1) ... [2020-10-26 20:31:54,697 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:31:54" (1/1) ... [2020-10-26 20:31:54,707 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:31:54" (1/1) ... [2020-10-26 20:31:54,718 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 20:31:54,719 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 20:31:54,719 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 20:31:54,719 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 20:31:54,720 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:31:54" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 20:31:54,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 20:31:54,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 20:31:54,815 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 20:31:54,815 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 20:31:54,815 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 20:31:54,816 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 20:31:54,816 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 20:31:54,816 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 20:31:54,817 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 20:31:54,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 20:31:54,818 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 20:31:54,819 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 20:31:54,819 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 20:31:54,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 20:31:54,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 20:31:54,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 20:31:54,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 20:31:54,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 20:31:54,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 20:31:56,548 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 20:31:56,548 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 20:31:56,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:31:56 BoogieIcfgContainer [2020-10-26 20:31:56,551 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 20:31:56,553 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 20:31:56,553 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 20:31:56,557 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 20:31:56,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 08:31:53" (1/3) ... [2020-10-26 20:31:56,558 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64442604 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:31:56, skipping insertion in model container [2020-10-26 20:31:56,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:31:54" (2/3) ... [2020-10-26 20:31:56,559 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64442604 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:31:56, skipping insertion in model container [2020-10-26 20:31:56,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:31:56" (3/3) ... [2020-10-26 20:31:56,561 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label11.c [2020-10-26 20:31:56,574 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 20:31:56,580 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 20:31:56,595 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 20:31:56,626 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 20:31:56,626 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 20:31:56,627 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 20:31:56,627 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 20:31:56,627 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 20:31:56,627 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 20:31:56,627 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 20:31:56,627 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 20:31:56,652 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2020-10-26 20:31:56,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-26 20:31:56,666 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:31:56,667 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:31:56,667 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:31:56,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:31:56,674 INFO L82 PathProgramCache]: Analyzing trace with hash -1780686751, now seen corresponding path program 1 times [2020-10-26 20:31:56,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:31:56,685 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1198566809] [2020-10-26 20:31:56,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:31:56,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:31:57,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:57,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:59,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:31:59,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-26 20:31:59,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:31:59,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2187 [2020-10-26 20:31:59,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:31:59,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:31:59,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:31:59,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-26 20:31:59,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 20:31:59,537 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:31:59,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:31:59,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:31:59,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:59,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:31:59,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:31:59,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:31:59,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-26 20:31:59,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:31:59,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:31:59,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:31:59,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:31:59,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:31:59,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:31:59,642 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1198566809] [2020-10-26 20:31:59,645 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:31:59,645 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 20:31:59,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113418433] [2020-10-26 20:31:59,652 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 20:31:59,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:31:59,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 20:31:59,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 20:31:59,672 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 4 states. [2020-10-26 20:31:59,914 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-26 20:32:01,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:01,968 INFO L93 Difference]: Finished difference Result 562 states and 962 transitions. [2020-10-26 20:32:01,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 20:32:01,971 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 116 [2020-10-26 20:32:01,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:01,987 INFO L225 Difference]: With dead ends: 562 [2020-10-26 20:32:01,988 INFO L226 Difference]: Without dead ends: 287 [2020-10-26 20:32:01,996 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-26 20:32:02,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-10-26 20:32:02,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 281. [2020-10-26 20:32:02,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2020-10-26 20:32:02,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 385 transitions. [2020-10-26 20:32:02,098 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 385 transitions. Word has length 116 [2020-10-26 20:32:02,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:02,099 INFO L481 AbstractCegarLoop]: Abstraction has 281 states and 385 transitions. [2020-10-26 20:32:02,099 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 20:32:02,100 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 385 transitions. [2020-10-26 20:32:02,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-26 20:32:02,107 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:02,109 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:32:02,110 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 20:32:02,110 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:02,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:02,111 INFO L82 PathProgramCache]: Analyzing trace with hash -266823614, now seen corresponding path program 1 times [2020-10-26 20:32:02,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:02,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1165871385] [2020-10-26 20:32:02,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:02,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:02,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:02,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:04,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:06,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:06,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-26 20:32:06,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:32:06,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4011 [2020-10-26 20:32:06,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:06,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:32:06,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:32:06,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-26 20:32:06,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:06,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:06,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:06,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:06,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:06,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:06,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:06,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:32:06,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:06,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:06,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:06,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:32:06,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:06,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:32:06,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:06,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:06,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:06,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-26 20:32:06,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:06,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-26 20:32:06,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:06,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:06,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:06,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:32:06,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:06,518 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:32:06,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1165871385] [2020-10-26 20:32:06,519 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:32:06,520 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-26 20:32:06,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882520953] [2020-10-26 20:32:06,523 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:32:06,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:06,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:32:06,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:32:06,530 INFO L87 Difference]: Start difference. First operand 281 states and 385 transitions. Second operand 7 states. [2020-10-26 20:32:06,683 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-26 20:32:08,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:08,489 INFO L93 Difference]: Finished difference Result 848 states and 1182 transitions. [2020-10-26 20:32:08,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:32:08,491 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 125 [2020-10-26 20:32:08,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:08,505 INFO L225 Difference]: With dead ends: 848 [2020-10-26 20:32:08,506 INFO L226 Difference]: Without dead ends: 573 [2020-10-26 20:32:08,509 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:32:08,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2020-10-26 20:32:08,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 561. [2020-10-26 20:32:08,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 561 states. [2020-10-26 20:32:08,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 746 transitions. [2020-10-26 20:32:08,568 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 746 transitions. Word has length 125 [2020-10-26 20:32:08,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:08,568 INFO L481 AbstractCegarLoop]: Abstraction has 561 states and 746 transitions. [2020-10-26 20:32:08,568 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:32:08,569 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 746 transitions. [2020-10-26 20:32:08,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-26 20:32:08,573 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:08,573 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:32:08,573 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 20:32:08,573 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:08,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:08,574 INFO L82 PathProgramCache]: Analyzing trace with hash -591301666, now seen corresponding path program 1 times [2020-10-26 20:32:08,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:08,575 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1572608410] [2020-10-26 20:32:08,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:08,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:08,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:08,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:09,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:09,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-26 20:32:09,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:32:09,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 467 [2020-10-26 20:32:09,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:09,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:09,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-26 20:32:09,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-26 20:32:09,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:09,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:09,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:09,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:09,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:09,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:09,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:09,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:32:09,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:09,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:09,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:09,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:09,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:09,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:32:09,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:09,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:09,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:09,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:32:09,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:09,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-26 20:32:09,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:09,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:09,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:09,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 20:32:09,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:09,598 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:32:09,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1572608410] [2020-10-26 20:32:09,599 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:32:09,599 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:32:09,599 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780033063] [2020-10-26 20:32:09,600 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 20:32:09,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:09,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 20:32:09,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 20:32:09,601 INFO L87 Difference]: Start difference. First operand 561 states and 746 transitions. Second operand 5 states. [2020-10-26 20:32:09,842 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-26 20:32:11,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:11,233 INFO L93 Difference]: Finished difference Result 1221 states and 1671 transitions. [2020-10-26 20:32:11,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 20:32:11,233 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 127 [2020-10-26 20:32:11,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:11,238 INFO L225 Difference]: With dead ends: 1221 [2020-10-26 20:32:11,239 INFO L226 Difference]: Without dead ends: 567 [2020-10-26 20:32:11,241 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:32:11,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2020-10-26 20:32:11,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 559. [2020-10-26 20:32:11,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 559 states. [2020-10-26 20:32:11,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 685 transitions. [2020-10-26 20:32:11,279 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 685 transitions. Word has length 127 [2020-10-26 20:32:11,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:11,280 INFO L481 AbstractCegarLoop]: Abstraction has 559 states and 685 transitions. [2020-10-26 20:32:11,280 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 20:32:11,280 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 685 transitions. [2020-10-26 20:32:11,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-10-26 20:32:11,284 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:11,284 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 20:32:11,285 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 20:32:11,285 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:11,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:11,286 INFO L82 PathProgramCache]: Analyzing trace with hash -1857071066, now seen corresponding path program 1 times [2020-10-26 20:32:11,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:11,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [744472062] [2020-10-26 20:32:11,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:11,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:11,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:11,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:11,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:11,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:16,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:16,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-26 20:32:16,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:32:16,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-26 20:32:16,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:16,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:32:16,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:32:16,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-26 20:32:16,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:16,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:16,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:16,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:16,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:16,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:16,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:16,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:32:16,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:16,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:16,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:16,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:32:16,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:16,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:32:16,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:16,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:16,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:16,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-26 20:32:16,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:16,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-26 20:32:16,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:16,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:16,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:16,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-26 20:32:16,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:16,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-26 20:32:16,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:16,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:16,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:16,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:32:16,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:16,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:32:16,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:16,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:16,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:32:16,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:16,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:16,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-26 20:32:16,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:16,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:16,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:16,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-26 20:32:16,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:16,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:32:16,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:16,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:16,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-26 20:32:16,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:16,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:16,681 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 44 proven. 24 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-10-26 20:32:16,682 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [744472062] [2020-10-26 20:32:16,682 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:32:16,682 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:32:16,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745465793] [2020-10-26 20:32:16,683 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:32:16,683 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:16,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:32:16,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:32:16,684 INFO L87 Difference]: Start difference. First operand 559 states and 685 transitions. Second operand 7 states. [2020-10-26 20:32:18,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:18,435 INFO L93 Difference]: Finished difference Result 1688 states and 2099 transitions. [2020-10-26 20:32:18,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:32:18,436 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 169 [2020-10-26 20:32:18,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:18,443 INFO L225 Difference]: With dead ends: 1688 [2020-10-26 20:32:18,443 INFO L226 Difference]: Without dead ends: 1135 [2020-10-26 20:32:18,446 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:32:18,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1135 states. [2020-10-26 20:32:18,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1135 to 1127. [2020-10-26 20:32:18,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1127 states. [2020-10-26 20:32:18,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1127 states to 1127 states and 1329 transitions. [2020-10-26 20:32:18,506 INFO L78 Accepts]: Start accepts. Automaton has 1127 states and 1329 transitions. Word has length 169 [2020-10-26 20:32:18,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:18,506 INFO L481 AbstractCegarLoop]: Abstraction has 1127 states and 1329 transitions. [2020-10-26 20:32:18,506 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:32:18,506 INFO L276 IsEmpty]: Start isEmpty. Operand 1127 states and 1329 transitions. [2020-10-26 20:32:18,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-26 20:32:18,511 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:18,512 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2020-10-26 20:32:18,512 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 20:32:18,512 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:18,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:18,513 INFO L82 PathProgramCache]: Analyzing trace with hash 579446300, now seen corresponding path program 1 times [2020-10-26 20:32:18,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:18,513 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [31460338] [2020-10-26 20:32:18,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:18,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:18,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:18,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:18,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:18,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:23,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:23,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-26 20:32:23,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:32:23,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-26 20:32:23,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:23,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:23,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:32:23,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-26 20:32:23,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:23,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:23,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:23,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:23,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:23,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:23,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:23,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:32:23,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:23,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:23,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:23,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:23,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:23,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:32:23,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:23,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:23,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:23,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:32:23,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:23,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:32:23,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:23,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:23,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:23,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 20:32:23,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:23,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:32:23,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:23,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:23,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:23,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-26 20:32:23,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:23,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-26 20:32:23,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:23,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:23,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:23,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-26 20:32:23,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:23,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-26 20:32:23,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:23,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:23,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:23,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:32:23,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:23,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:32:23,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:23,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:23,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:32:23,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:23,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:23,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-26 20:32:23,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:23,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:23,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:23,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-26 20:32:23,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:23,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:32:23,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:23,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:23,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-26 20:32:23,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:23,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:24,016 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 68 proven. 30 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-26 20:32:24,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [31460338] [2020-10-26 20:32:24,017 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:32:24,017 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:32:24,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241228437] [2020-10-26 20:32:24,018 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:32:24,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:24,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:32:24,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:32:24,019 INFO L87 Difference]: Start difference. First operand 1127 states and 1329 transitions. Second operand 7 states. [2020-10-26 20:32:25,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:25,901 INFO L93 Difference]: Finished difference Result 2417 states and 2905 transitions. [2020-10-26 20:32:25,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:32:25,905 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 183 [2020-10-26 20:32:25,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:25,917 INFO L225 Difference]: With dead ends: 2417 [2020-10-26 20:32:25,918 INFO L226 Difference]: Without dead ends: 1431 [2020-10-26 20:32:25,921 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:32:25,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1431 states. [2020-10-26 20:32:25,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1431 to 1423. [2020-10-26 20:32:25,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1423 states. [2020-10-26 20:32:25,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1423 states to 1423 states and 1665 transitions. [2020-10-26 20:32:25,982 INFO L78 Accepts]: Start accepts. Automaton has 1423 states and 1665 transitions. Word has length 183 [2020-10-26 20:32:25,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:25,983 INFO L481 AbstractCegarLoop]: Abstraction has 1423 states and 1665 transitions. [2020-10-26 20:32:25,983 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:32:25,983 INFO L276 IsEmpty]: Start isEmpty. Operand 1423 states and 1665 transitions. [2020-10-26 20:32:25,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-10-26 20:32:25,989 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:25,989 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:32:25,990 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 20:32:25,990 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:25,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:25,990 INFO L82 PathProgramCache]: Analyzing trace with hash -2137256474, now seen corresponding path program 1 times [2020-10-26 20:32:25,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:25,991 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1095973578] [2020-10-26 20:32:25,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:26,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:26,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:26,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:26,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:29,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:30,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:31,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:31,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-10-26 20:32:31,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:32:31,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-26 20:32:31,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:31,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:32:31,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:32:31,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-26 20:32:31,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:31,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:31,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:31,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:31,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:31,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:31,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:31,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:32:31,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:31,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:31,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:31,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:32:31,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:31,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:32:31,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:31,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:31,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:31,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:31,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:32:31,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:32:31,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-26 20:32:31,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:31,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:31,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:31,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-26 20:32:31,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:31,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:32:31,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:31,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:31,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:31,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:32:31,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:31,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-26 20:32:31,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:31,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:31,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:31,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:32:31,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:32:31,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-26 20:32:31,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:31,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:31,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:31,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-26 20:32:31,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:31,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-26 20:32:31,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:31,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:31,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-26 20:32:31,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:31,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:31,700 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 89 proven. 36 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-26 20:32:31,700 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1095973578] [2020-10-26 20:32:31,702 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:32:31,702 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:32:31,703 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640104998] [2020-10-26 20:32:31,704 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:32:31,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:31,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:32:31,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:32:31,705 INFO L87 Difference]: Start difference. First operand 1423 states and 1665 transitions. Second operand 8 states. [2020-10-26 20:32:31,883 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-26 20:32:33,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:33,543 INFO L93 Difference]: Finished difference Result 3285 states and 3990 transitions. [2020-10-26 20:32:33,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 20:32:33,544 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 201 [2020-10-26 20:32:33,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:33,555 INFO L225 Difference]: With dead ends: 3285 [2020-10-26 20:32:33,555 INFO L226 Difference]: Without dead ends: 2003 [2020-10-26 20:32:33,559 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-26 20:32:33,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2003 states. [2020-10-26 20:32:33,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2003 to 1854. [2020-10-26 20:32:33,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1854 states. [2020-10-26 20:32:33,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1854 states to 1854 states and 2140 transitions. [2020-10-26 20:32:33,635 INFO L78 Accepts]: Start accepts. Automaton has 1854 states and 2140 transitions. Word has length 201 [2020-10-26 20:32:33,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:33,636 INFO L481 AbstractCegarLoop]: Abstraction has 1854 states and 2140 transitions. [2020-10-26 20:32:33,636 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:32:33,636 INFO L276 IsEmpty]: Start isEmpty. Operand 1854 states and 2140 transitions. [2020-10-26 20:32:33,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-10-26 20:32:33,643 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:33,644 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 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] [2020-10-26 20:32:33,644 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 20:32:33,644 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:33,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:33,645 INFO L82 PathProgramCache]: Analyzing trace with hash -1355621515, now seen corresponding path program 1 times [2020-10-26 20:32:33,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:33,645 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1427820914] [2020-10-26 20:32:33,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:33,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:33,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:33,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:34,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:35,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:38,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:38,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-10-26 20:32:38,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:32:38,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-26 20:32:38,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:38,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:38,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-26 20:32:38,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-26 20:32:38,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-26 20:32:38,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:38,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:38,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:38,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:38,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:38,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:38,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:32:38,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:38,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:38,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:38,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:38,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:38,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:32:38,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:38,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:38,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:38,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:32:38,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:38,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-26 20:32:38,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:38,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:38,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:38,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:38,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:38,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:32:38,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:38,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:38,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:38,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-26 20:32:38,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:38,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-26 20:32:38,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:38,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:38,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:38,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-26 20:32:38,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:38,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-26 20:32:38,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:38,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:39,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:39,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:32:39,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:39,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-26 20:32:39,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:39,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:39,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:39,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:32:39,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:39,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-26 20:32:39,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:39,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:39,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:39,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-26 20:32:39,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:39,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:32:39,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:39,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:39,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-26 20:32:39,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:39,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:39,159 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 143 proven. 14 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2020-10-26 20:32:39,159 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1427820914] [2020-10-26 20:32:39,160 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:32:39,160 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:32:39,160 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614577689] [2020-10-26 20:32:39,160 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:32:39,161 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:39,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:32:39,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:32:39,163 INFO L87 Difference]: Start difference. First operand 1854 states and 2140 transitions. Second operand 7 states. [2020-10-26 20:32:39,915 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-26 20:32:41,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:41,132 INFO L93 Difference]: Finished difference Result 4000 states and 4724 transitions. [2020-10-26 20:32:41,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:32:41,133 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 234 [2020-10-26 20:32:41,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:41,146 INFO L225 Difference]: With dead ends: 4000 [2020-10-26 20:32:41,146 INFO L226 Difference]: Without dead ends: 2152 [2020-10-26 20:32:41,152 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:32:41,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2152 states. [2020-10-26 20:32:41,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2152 to 2134. [2020-10-26 20:32:41,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2134 states. [2020-10-26 20:32:41,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2134 states to 2134 states and 2462 transitions. [2020-10-26 20:32:41,239 INFO L78 Accepts]: Start accepts. Automaton has 2134 states and 2462 transitions. Word has length 234 [2020-10-26 20:32:41,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:41,239 INFO L481 AbstractCegarLoop]: Abstraction has 2134 states and 2462 transitions. [2020-10-26 20:32:41,239 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:32:41,239 INFO L276 IsEmpty]: Start isEmpty. Operand 2134 states and 2462 transitions. [2020-10-26 20:32:41,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-10-26 20:32:41,248 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:41,248 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2020-10-26 20:32:41,249 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 20:32:41,249 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:41,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:41,250 INFO L82 PathProgramCache]: Analyzing trace with hash 1219621735, now seen corresponding path program 1 times [2020-10-26 20:32:41,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:41,250 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1426034653] [2020-10-26 20:32:41,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:41,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:41,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:41,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:43,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:43,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:45,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:45,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 264 [2020-10-26 20:32:45,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:32:45,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4467 [2020-10-26 20:32:45,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:45,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:45,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-10-26 20:32:45,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-26 20:32:45,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:45,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:45,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:45,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:45,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:45,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:45,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:45,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:32:45,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:45,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:45,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:45,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:45,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:45,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:32:45,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:45,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:45,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:45,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:32:45,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:45,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:32:45,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:45,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:45,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:45,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:45,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:45,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:32:45,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:45,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:45,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:45,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-26 20:32:45,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:45,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-26 20:32:45,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:45,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:45,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:45,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:45,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:45,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-26 20:32:45,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:45,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:46,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:46,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-26 20:32:46,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:46,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-26 20:32:46,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:46,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:46,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:46,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-26 20:32:46,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:46,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-26 20:32:46,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:46,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:46,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:46,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:32:46,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:46,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-26 20:32:46,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:46,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:46,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:46,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:32:46,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:46,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-26 20:32:46,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:46,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:46,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:46,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-26 20:32:46,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:46,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:32:46,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:46,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:46,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-26 20:32:46,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:46,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:46,266 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 164 proven. 14 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2020-10-26 20:32:46,266 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1426034653] [2020-10-26 20:32:46,266 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:32:46,267 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:32:46,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116659463] [2020-10-26 20:32:46,268 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:32:46,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:46,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:32:46,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:32:46,269 INFO L87 Difference]: Start difference. First operand 2134 states and 2462 transitions. Second operand 7 states. [2020-10-26 20:32:47,686 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-26 20:32:48,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:48,244 INFO L93 Difference]: Finished difference Result 4832 states and 5673 transitions. [2020-10-26 20:32:48,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 20:32:48,250 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 244 [2020-10-26 20:32:48,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:48,264 INFO L225 Difference]: With dead ends: 4832 [2020-10-26 20:32:48,264 INFO L226 Difference]: Without dead ends: 2704 [2020-10-26 20:32:48,271 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-26 20:32:48,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2704 states. [2020-10-26 20:32:48,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2704 to 2694. [2020-10-26 20:32:48,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2694 states. [2020-10-26 20:32:48,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2694 states to 2694 states and 3078 transitions. [2020-10-26 20:32:48,376 INFO L78 Accepts]: Start accepts. Automaton has 2694 states and 3078 transitions. Word has length 244 [2020-10-26 20:32:48,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:48,377 INFO L481 AbstractCegarLoop]: Abstraction has 2694 states and 3078 transitions. [2020-10-26 20:32:48,377 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:32:48,377 INFO L276 IsEmpty]: Start isEmpty. Operand 2694 states and 3078 transitions. [2020-10-26 20:32:48,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2020-10-26 20:32:48,388 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:48,388 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2020-10-26 20:32:48,388 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 20:32:48,389 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:48,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:48,389 INFO L82 PathProgramCache]: Analyzing trace with hash 1886907644, now seen corresponding path program 1 times [2020-10-26 20:32:48,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:48,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [200598366] [2020-10-26 20:32:48,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:48,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:48,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:48,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:49,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:51,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:51,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:53,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:53,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 279 [2020-10-26 20:32:53,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:32:53,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-26 20:32:53,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:53,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:32:53,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-10-26 20:32:53,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-26 20:32:53,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:53,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:53,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:53,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:53,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:53,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:53,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:53,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:32:53,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:53,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:53,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:53,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:53,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:53,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:32:53,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:53,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:53,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:53,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:32:53,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:53,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 20:32:53,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:53,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:53,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:53,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:53,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:53,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:32:53,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:53,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:53,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:53,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-26 20:32:53,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:53,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-26 20:32:53,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:53,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:53,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:53,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:53,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:53,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-26 20:32:53,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:53,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:53,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:53,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-26 20:32:53,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:53,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-26 20:32:53,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:53,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:53,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:53,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-26 20:32:53,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:53,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-26 20:32:53,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:53,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:53,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:53,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:53,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:32:53,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:32:53,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-26 20:32:53,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:53,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:53,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:53,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-26 20:32:53,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:53,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-26 20:32:53,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:53,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:53,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:53,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:32:53,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:53,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-26 20:32:53,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:53,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:53,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:53,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:32:53,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:53,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-26 20:32:53,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:53,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:53,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:53,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-26 20:32:53,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:53,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:32:53,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:53,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:53,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-26 20:32:53,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:53,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:53,945 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 207 proven. 32 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2020-10-26 20:32:53,947 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [200598366] [2020-10-26 20:32:53,948 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:32:53,948 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:32:53,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272413744] [2020-10-26 20:32:53,949 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:32:53,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:53,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:32:53,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:32:53,951 INFO L87 Difference]: Start difference. First operand 2694 states and 3078 transitions. Second operand 8 states. [2020-10-26 20:32:56,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:56,099 INFO L93 Difference]: Finished difference Result 5938 states and 6906 transitions. [2020-10-26 20:32:56,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-26 20:32:56,100 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 257 [2020-10-26 20:32:56,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:56,118 INFO L225 Difference]: With dead ends: 5938 [2020-10-26 20:32:56,118 INFO L226 Difference]: Without dead ends: 3250 [2020-10-26 20:32:56,125 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-26 20:32:56,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3250 states. [2020-10-26 20:32:56,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3250 to 3234. [2020-10-26 20:32:56,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3234 states. [2020-10-26 20:32:56,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3234 states to 3234 states and 3673 transitions. [2020-10-26 20:32:56,227 INFO L78 Accepts]: Start accepts. Automaton has 3234 states and 3673 transitions. Word has length 257 [2020-10-26 20:32:56,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:56,227 INFO L481 AbstractCegarLoop]: Abstraction has 3234 states and 3673 transitions. [2020-10-26 20:32:56,227 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:32:56,227 INFO L276 IsEmpty]: Start isEmpty. Operand 3234 states and 3673 transitions. [2020-10-26 20:32:56,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2020-10-26 20:32:56,238 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:56,239 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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, 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] [2020-10-26 20:32:56,239 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 20:32:56,240 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:56,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:56,240 INFO L82 PathProgramCache]: Analyzing trace with hash 2141950066, now seen corresponding path program 1 times [2020-10-26 20:32:56,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:56,241 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [610172630] [2020-10-26 20:32:56,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:56,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:56,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:56,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:58,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:58,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:00,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:00,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 285 [2020-10-26 20:33:00,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:33:00,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4539 [2020-10-26 20:33:00,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:00,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:00,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-26 20:33:00,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-26 20:33:00,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:00,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:00,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:00,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:00,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:00,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:00,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:00,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 20:33:00,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:00,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:00,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:00,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:00,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:00,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:33:00,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:01,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:01,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:01,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:33:01,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:01,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-26 20:33:01,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:01,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:01,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:01,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-26 20:33:01,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:01,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:33:01,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:01,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:01,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:01,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:33:01,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:01,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-26 20:33:01,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:01,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:01,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:01,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-26 20:33:01,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:01,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-26 20:33:01,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:01,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:01,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:01,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:33:01,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:01,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:33:01,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:01,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:01,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 20:33:01,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:01,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:01,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-26 20:33:01,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:01,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:01,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:01,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:33:01,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:01,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 20:33:01,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:01,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:01,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:33:01,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:01,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:01,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-26 20:33:01,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:01,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:01,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:01,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-26 20:33:01,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:01,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:33:01,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:01,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:01,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-26 20:33:01,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:01,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:01,253 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 184 proven. 50 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2020-10-26 20:33:01,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [610172630] [2020-10-26 20:33:01,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:33:01,254 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:33:01,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007293527] [2020-10-26 20:33:01,255 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:33:01,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:01,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:33:01,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:33:01,256 INFO L87 Difference]: Start difference. First operand 3234 states and 3673 transitions. Second operand 7 states. [2020-10-26 20:33:03,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:33:03,213 INFO L93 Difference]: Finished difference Result 7016 states and 8043 transitions. [2020-10-26 20:33:03,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:33:03,218 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 265 [2020-10-26 20:33:03,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:33:03,237 INFO L225 Difference]: With dead ends: 7016 [2020-10-26 20:33:03,237 INFO L226 Difference]: Without dead ends: 3788 [2020-10-26 20:33:03,246 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:33:03,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3788 states. [2020-10-26 20:33:03,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3788 to 3363. [2020-10-26 20:33:03,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3363 states. [2020-10-26 20:33:03,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3363 states to 3363 states and 3813 transitions. [2020-10-26 20:33:03,398 INFO L78 Accepts]: Start accepts. Automaton has 3363 states and 3813 transitions. Word has length 265 [2020-10-26 20:33:03,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:33:03,398 INFO L481 AbstractCegarLoop]: Abstraction has 3363 states and 3813 transitions. [2020-10-26 20:33:03,398 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:33:03,399 INFO L276 IsEmpty]: Start isEmpty. Operand 3363 states and 3813 transitions. [2020-10-26 20:33:03,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2020-10-26 20:33:03,410 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:03,411 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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, 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] [2020-10-26 20:33:03,411 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 20:33:03,411 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:03,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:03,412 INFO L82 PathProgramCache]: Analyzing trace with hash -1061668314, now seen corresponding path program 1 times [2020-10-26 20:33:03,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:03,412 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [567536292] [2020-10-26 20:33:03,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:03,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:03,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:03,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:04,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:05,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:05,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 307 [2020-10-26 20:33:05,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:33:05,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1835 [2020-10-26 20:33:05,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:05,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:33:05,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-26 20:33:05,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-26 20:33:05,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:05,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:05,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:05,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:05,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:05,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:05,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:05,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:33:05,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:05,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:05,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:05,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:05,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:05,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:33:05,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:05,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:05,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:05,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-26 20:33:05,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:05,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-26 20:33:05,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:05,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:05,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:05,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:05,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:05,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 20:33:05,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:05,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:05,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:05,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:33:05,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:05,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:33:05,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:05,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:05,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:05,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:05,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:05,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-26 20:33:05,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:05,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:05,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:05,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:33:05,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:05,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:33:05,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:05,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:05,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:05,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:05,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:05,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-26 20:33:05,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:05,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:05,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:05,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:33:05,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:05,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:33:05,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:05,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:05,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:05,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:33:05,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:05,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-26 20:33:05,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:05,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:05,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:05,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:05,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-26 20:33:05,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:33:05,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-26 20:33:05,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:05,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:05,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:05,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-26 20:33:05,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:05,846 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 236 proven. 7 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2020-10-26 20:33:05,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [567536292] [2020-10-26 20:33:05,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:33:05,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 20:33:05,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690079774] [2020-10-26 20:33:05,848 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 20:33:05,848 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:05,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 20:33:05,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:33:05,849 INFO L87 Difference]: Start difference. First operand 3363 states and 3813 transitions. Second operand 6 states. [2020-10-26 20:33:07,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:33:07,400 INFO L93 Difference]: Finished difference Result 7306 states and 8375 transitions. [2020-10-26 20:33:07,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 20:33:07,403 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 287 [2020-10-26 20:33:07,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:33:07,426 INFO L225 Difference]: With dead ends: 7306 [2020-10-26 20:33:07,426 INFO L226 Difference]: Without dead ends: 3534 [2020-10-26 20:33:07,435 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:33:07,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3534 states. [2020-10-26 20:33:07,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3534 to 3492. [2020-10-26 20:33:07,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3492 states. [2020-10-26 20:33:07,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3492 states to 3492 states and 3886 transitions. [2020-10-26 20:33:07,588 INFO L78 Accepts]: Start accepts. Automaton has 3492 states and 3886 transitions. Word has length 287 [2020-10-26 20:33:07,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:33:07,589 INFO L481 AbstractCegarLoop]: Abstraction has 3492 states and 3886 transitions. [2020-10-26 20:33:07,589 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 20:33:07,589 INFO L276 IsEmpty]: Start isEmpty. Operand 3492 states and 3886 transitions. [2020-10-26 20:33:07,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2020-10-26 20:33:07,603 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:07,603 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 20:33:07,603 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-26 20:33:07,604 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:07,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:07,604 INFO L82 PathProgramCache]: Analyzing trace with hash -2022389636, now seen corresponding path program 1 times [2020-10-26 20:33:07,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:07,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [251217008] [2020-10-26 20:33:07,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:07,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:07,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:07,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:08,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:10,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:11,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:12,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:12,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 363 [2020-10-26 20:33:12,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:33:12,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-26 20:33:12,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:12,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:33:12,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-26 20:33:12,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-26 20:33:12,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:12,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:12,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:12,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:12,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:12,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:12,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:12,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:33:12,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:12,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:12,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:12,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:12,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:12,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:33:12,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:12,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:12,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:12,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-26 20:33:12,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:12,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:33:12,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:12,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:12,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:12,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:12,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:12,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 20:33:12,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:12,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:12,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:12,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:33:12,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:12,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:33:12,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:12,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:12,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:12,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:12,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:12,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-26 20:33:12,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:12,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:12,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:12,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:33:12,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:12,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:33:12,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:12,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:12,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:12,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:12,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:12,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-26 20:33:12,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:12,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:12,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:12,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:33:12,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:12,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:33:12,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:12,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:12,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:12,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:33:12,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:12,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-26 20:33:13,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:13,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:13,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:13,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:13,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:33:13,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:33:13,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-26 20:33:13,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:13,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:13,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:13,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-26 20:33:13,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:13,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-10-26 20:33:13,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:13,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:13,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:13,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-26 20:33:13,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:13,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-26 20:33:13,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:13,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:13,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:13,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-26 20:33:13,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:13,285 INFO L134 CoverageAnalysis]: Checked inductivity of 557 backedges. 414 proven. 6 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2020-10-26 20:33:13,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [251217008] [2020-10-26 20:33:13,285 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:33:13,285 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:33:13,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951186205] [2020-10-26 20:33:13,286 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:33:13,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:13,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:33:13,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:33:13,287 INFO L87 Difference]: Start difference. First operand 3492 states and 3886 transitions. Second operand 7 states. [2020-10-26 20:33:14,834 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-26 20:33:15,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:33:15,735 INFO L93 Difference]: Finished difference Result 7229 states and 8052 transitions. [2020-10-26 20:33:15,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:33:15,736 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 341 [2020-10-26 20:33:15,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:33:15,737 INFO L225 Difference]: With dead ends: 7229 [2020-10-26 20:33:15,737 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 20:33:15,750 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:33:15,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 20:33:15,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 20:33:15,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 20:33:15,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 20:33:15,751 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 341 [2020-10-26 20:33:15,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:33:15,751 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 20:33:15,751 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:33:15,751 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 20:33:15,752 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 20:33:15,752 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-26 20:33:15,754 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 20:33:16,950 WARN L193 SmtUtils]: Spent 580.00 ms on a formula simplification. DAG size of input: 246 DAG size of output: 224 [2020-10-26 20:33:17,448 WARN L193 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 246 DAG size of output: 224 [2020-10-26 20:33:17,711 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 33 [2020-10-26 20:33:19,177 WARN L193 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 202 DAG size of output: 73 [2020-10-26 20:33:20,372 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 203 DAG size of output: 51 [2020-10-26 20:33:21,652 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 203 DAG size of output: 51 [2020-10-26 20:33:21,988 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 46 [2020-10-26 20:33:21,994 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-26 20:33:21,994 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-26 20:33:21,994 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-26 20:33:21,995 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-26 20:33:21,995 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:33:21,995 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|) (= ~a21~0 |old(~a21~0)|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~a16~0 |old(~a16~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~y~0 |old(~y~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a17~0 |old(~a17~0)|) (= ~c~0 |old(~c~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-10-26 20:33:21,995 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:33:21,996 INFO L274 CegarLoopResult]: For program point L564-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:21,996 INFO L274 CegarLoopResult]: For program point L531-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:21,996 INFO L274 CegarLoopResult]: For program point L498-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:21,996 INFO L274 CegarLoopResult]: For program point L465-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:21,996 INFO L274 CegarLoopResult]: For program point L432-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:21,996 INFO L274 CegarLoopResult]: For program point L399-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:21,996 INFO L274 CegarLoopResult]: For program point L267(lines 267 392) no Hoare annotation was computed. [2020-10-26 20:33:21,996 INFO L274 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-26 20:33:21,996 INFO L274 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-26 20:33:21,996 INFO L274 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-26 20:33:21,996 INFO L274 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-26 20:33:21,997 INFO L274 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-26 20:33:21,997 INFO L274 CegarLoopResult]: For program point L400(line 400) no Hoare annotation was computed. [2020-10-26 20:33:21,997 INFO L274 CegarLoopResult]: For program point L367(lines 367 392) no Hoare annotation was computed. [2020-10-26 20:33:21,997 INFO L274 CegarLoopResult]: For program point L301(lines 301 392) no Hoare annotation was computed. [2020-10-26 20:33:21,997 INFO L274 CegarLoopResult]: For program point L37(lines 37 392) no Hoare annotation was computed. [2020-10-26 20:33:21,997 INFO L274 CegarLoopResult]: For program point L335(lines 335 392) no Hoare annotation was computed. [2020-10-26 20:33:21,997 INFO L274 CegarLoopResult]: For program point L104(lines 104 392) no Hoare annotation was computed. [2020-10-26 20:33:21,997 INFO L274 CegarLoopResult]: For program point L567-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:21,997 INFO L274 CegarLoopResult]: For program point L534-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:21,997 INFO L274 CegarLoopResult]: For program point L501-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:21,997 INFO L274 CegarLoopResult]: For program point L468-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:21,998 INFO L274 CegarLoopResult]: For program point L435-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:21,998 INFO L274 CegarLoopResult]: For program point L402-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:21,998 INFO L274 CegarLoopResult]: For program point L270(lines 270 392) no Hoare annotation was computed. [2020-10-26 20:33:21,998 INFO L274 CegarLoopResult]: For program point L138(lines 138 392) no Hoare annotation was computed. [2020-10-26 20:33:21,998 INFO L274 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-26 20:33:21,998 INFO L274 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-26 20:33:21,998 INFO L274 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-26 20:33:21,998 INFO L274 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-26 20:33:21,998 INFO L274 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-26 20:33:21,998 INFO L274 CegarLoopResult]: For program point L403(line 403) no Hoare annotation was computed. [2020-10-26 20:33:21,998 INFO L274 CegarLoopResult]: For program point L205(lines 205 392) no Hoare annotation was computed. [2020-10-26 20:33:21,999 INFO L274 CegarLoopResult]: For program point L74(lines 74 392) no Hoare annotation was computed. [2020-10-26 20:33:21,999 INFO L274 CegarLoopResult]: For program point L570-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:21,999 INFO L274 CegarLoopResult]: For program point L537-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:21,999 INFO L274 CegarLoopResult]: For program point L504-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:21,999 INFO L274 CegarLoopResult]: For program point L471-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:21,999 INFO L274 CegarLoopResult]: For program point L438-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:21,999 INFO L274 CegarLoopResult]: For program point L405-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:21,999 INFO L274 CegarLoopResult]: For program point L339(lines 339 392) no Hoare annotation was computed. [2020-10-26 20:33:21,999 INFO L274 CegarLoopResult]: For program point L240(lines 240 392) no Hoare annotation was computed. [2020-10-26 20:33:21,999 INFO L274 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-26 20:33:21,999 INFO L274 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-26 20:33:22,000 INFO L270 CegarLoopResult]: At program point L505(line 505) the Hoare annotation is: (let ((.cse9 (= |old(~a20~0)| 1))) (let ((.cse3 (not (= 6 |old(~a16~0)|))) (.cse4 (not .cse9)) (.cse5 (not (= |old(~a21~0)| 1))) (.cse0 (not (= |old(~a8~0)| 13))) (.cse7 (not (= 0 |old(~a20~0)|))) (.cse8 (not (= 4 |old(~a16~0)|))) (.cse1 (not (<= 1 |old(~a7~0)|))) (.cse2 (not (<= |old(~a7~0)| 1))) (.cse10 (not (= 5 |old(~a16~0)|))) (.cse6 (not (= |old(~a7~0)| 0)))) (and (or .cse0 .cse1 .cse2) (or .cse1 .cse3 .cse4 .cse2 .cse5) (or .cse3 .cse6) (or .cse4 .cse5 .cse6) (or .cse1 .cse2 .cse7 .cse8) (or .cse0 .cse9 .cse6 .cse8) (or .cse7 .cse6 .cse8) (or (not (= |old(~a17~0)| 1)) .cse9 .cse6 .cse8) (or .cse1 .cse2 .cse10) (or .cse10 .cse6)))) [2020-10-26 20:33:22,000 INFO L274 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-26 20:33:22,000 INFO L274 CegarLoopResult]: For program point L505-1(line 505) no Hoare annotation was computed. [2020-10-26 20:33:22,000 INFO L274 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-26 20:33:22,000 INFO L274 CegarLoopResult]: For program point L406(line 406) no Hoare annotation was computed. [2020-10-26 20:33:22,000 INFO L274 CegarLoopResult]: For program point L175(lines 175 392) no Hoare annotation was computed. [2020-10-26 20:33:22,000 INFO L274 CegarLoopResult]: For program point L142(lines 142 392) no Hoare annotation was computed. [2020-10-26 20:33:22,000 INFO L274 CegarLoopResult]: For program point L374(lines 374 392) no Hoare annotation was computed. [2020-10-26 20:33:22,001 INFO L274 CegarLoopResult]: For program point L308(lines 308 392) no Hoare annotation was computed. [2020-10-26 20:33:22,001 INFO L274 CegarLoopResult]: For program point L275(lines 275 392) no Hoare annotation was computed. [2020-10-26 20:33:22,001 INFO L274 CegarLoopResult]: For program point L110(lines 110 392) no Hoare annotation was computed. [2020-10-26 20:33:22,001 INFO L274 CegarLoopResult]: For program point L573-1(lines 573 575) no Hoare annotation was computed. [2020-10-26 20:33:22,001 INFO L274 CegarLoopResult]: For program point L540-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:22,001 INFO L274 CegarLoopResult]: For program point L507-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:22,001 INFO L274 CegarLoopResult]: For program point L474-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:22,001 INFO L274 CegarLoopResult]: For program point L441-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:22,001 INFO L274 CegarLoopResult]: For program point L408-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:22,001 INFO L274 CegarLoopResult]: For program point L210(lines 210 392) no Hoare annotation was computed. [2020-10-26 20:33:22,002 INFO L274 CegarLoopResult]: For program point L45(lines 45 392) no Hoare annotation was computed. [2020-10-26 20:33:22,002 INFO L274 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-26 20:33:22,002 INFO L274 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-26 20:33:22,002 INFO L274 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-26 20:33:22,002 INFO L274 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-26 20:33:22,002 INFO L274 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-26 20:33:22,002 INFO L274 CegarLoopResult]: For program point L409(line 409) no Hoare annotation was computed. [2020-10-26 20:33:22,002 INFO L274 CegarLoopResult]: For program point L146(lines 146 392) no Hoare annotation was computed. [2020-10-26 20:33:22,002 INFO L274 CegarLoopResult]: For program point L543-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:22,002 INFO L274 CegarLoopResult]: For program point L510-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:22,002 INFO L274 CegarLoopResult]: For program point L477-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:22,002 INFO L274 CegarLoopResult]: For program point L444-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:22,003 INFO L274 CegarLoopResult]: For program point L411-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:22,003 INFO L274 CegarLoopResult]: For program point L180(lines 180 392) no Hoare annotation was computed. [2020-10-26 20:33:22,003 INFO L274 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-26 20:33:22,003 INFO L274 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-26 20:33:22,003 INFO L274 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-26 20:33:22,003 INFO L274 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-26 20:33:22,003 INFO L274 CegarLoopResult]: For program point L412(line 412) no Hoare annotation was computed. [2020-10-26 20:33:22,003 INFO L274 CegarLoopResult]: For program point L379(lines 379 392) no Hoare annotation was computed. [2020-10-26 20:33:22,003 INFO L274 CegarLoopResult]: For program point L280(lines 280 392) no Hoare annotation was computed. [2020-10-26 20:33:22,003 INFO L274 CegarLoopResult]: For program point L247(lines 247 392) no Hoare annotation was computed. [2020-10-26 20:33:22,003 INFO L274 CegarLoopResult]: For program point L82(lines 82 392) no Hoare annotation was computed. [2020-10-26 20:33:22,004 INFO L274 CegarLoopResult]: For program point L347(lines 347 392) no Hoare annotation was computed. [2020-10-26 20:33:22,004 INFO L274 CegarLoopResult]: For program point L314(lines 314 392) no Hoare annotation was computed. [2020-10-26 20:33:22,004 INFO L274 CegarLoopResult]: For program point L116(lines 116 392) no Hoare annotation was computed. [2020-10-26 20:33:22,004 INFO L274 CegarLoopResult]: For program point L546-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:22,004 INFO L274 CegarLoopResult]: For program point L513-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:22,004 INFO L274 CegarLoopResult]: For program point L480-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:22,004 INFO L274 CegarLoopResult]: For program point L447-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:22,004 INFO L274 CegarLoopResult]: For program point L414-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:22,004 INFO L274 CegarLoopResult]: For program point L216(lines 216 392) no Hoare annotation was computed. [2020-10-26 20:33:22,004 INFO L274 CegarLoopResult]: For program point L150(lines 150 392) no Hoare annotation was computed. [2020-10-26 20:33:22,004 INFO L274 CegarLoopResult]: For program point L51(lines 51 392) no Hoare annotation was computed. [2020-10-26 20:33:22,004 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:22,004 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:22,005 INFO L274 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-26 20:33:22,005 INFO L274 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-26 20:33:22,005 INFO L274 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-26 20:33:22,005 INFO L274 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-26 20:33:22,005 INFO L274 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-26 20:33:22,005 INFO L274 CegarLoopResult]: For program point L86(lines 86 392) no Hoare annotation was computed. [2020-10-26 20:33:22,005 INFO L274 CegarLoopResult]: For program point L549-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:22,005 INFO L274 CegarLoopResult]: For program point L516-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:22,005 INFO L274 CegarLoopResult]: For program point L483-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:22,005 INFO L274 CegarLoopResult]: For program point L450-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:22,005 INFO L274 CegarLoopResult]: For program point L384(lines 384 392) no Hoare annotation was computed. [2020-10-26 20:33:22,005 INFO L274 CegarLoopResult]: For program point L417-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:22,006 INFO L274 CegarLoopResult]: For program point L318(lines 318 392) no Hoare annotation was computed. [2020-10-26 20:33:22,006 INFO L274 CegarLoopResult]: For program point L252(lines 252 392) no Hoare annotation was computed. [2020-10-26 20:33:22,006 INFO L274 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-26 20:33:22,006 INFO L274 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-26 20:33:22,006 INFO L274 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-26 20:33:22,006 INFO L274 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-26 20:33:22,006 INFO L274 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-26 20:33:22,006 INFO L274 CegarLoopResult]: For program point L220(lines 220 392) no Hoare annotation was computed. [2020-10-26 20:33:22,006 INFO L274 CegarLoopResult]: For program point L154(lines 154 392) no Hoare annotation was computed. [2020-10-26 20:33:22,006 INFO L274 CegarLoopResult]: For program point L121(lines 121 392) no Hoare annotation was computed. [2020-10-26 20:33:22,006 INFO L274 CegarLoopResult]: For program point L320(lines 320 392) no Hoare annotation was computed. [2020-10-26 20:33:22,007 INFO L274 CegarLoopResult]: For program point L188(lines 188 392) no Hoare annotation was computed. [2020-10-26 20:33:22,007 INFO L274 CegarLoopResult]: For program point L56(lines 56 392) no Hoare annotation was computed. [2020-10-26 20:33:22,007 INFO L274 CegarLoopResult]: For program point L552-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:22,007 INFO L274 CegarLoopResult]: For program point L519-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:22,007 INFO L274 CegarLoopResult]: For program point L486-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:22,007 INFO L274 CegarLoopResult]: For program point L453-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:22,007 INFO L274 CegarLoopResult]: For program point L420-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:22,007 INFO L274 CegarLoopResult]: For program point L288(lines 288 392) no Hoare annotation was computed. [2020-10-26 20:33:22,007 INFO L274 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-26 20:33:22,007 INFO L274 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-26 20:33:22,007 INFO L274 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-26 20:33:22,008 INFO L274 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-26 20:33:22,008 INFO L274 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-26 20:33:22,008 INFO L274 CegarLoopResult]: For program point L355(lines 355 392) no Hoare annotation was computed. [2020-10-26 20:33:22,008 INFO L274 CegarLoopResult]: For program point L191(lines 191 392) no Hoare annotation was computed. [2020-10-26 20:33:22,008 INFO L274 CegarLoopResult]: For program point L555-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:22,008 INFO L274 CegarLoopResult]: For program point L522-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:22,008 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 32 577) the Hoare annotation is: (let ((.cse0 (= ~a17~0 |old(~a17~0)|)) (.cse1 (= ~a21~0 |old(~a21~0)|)) (.cse2 (= ~a20~0 |old(~a20~0)|)) (.cse4 (= ~a8~0 |old(~a8~0)|)) (.cse20 (= ~a16~0 4)) (.cse5 (= ~a7~0 0)) (.cse17 (= |old(~a20~0)| 1))) (let ((.cse8 (not (= |old(~a8~0)| 13))) (.cse10 (= ~a8~0 13)) (.cse22 (= 5 ~a16~0)) (.cse21 (not (= 5 |old(~a16~0)|))) (.cse12 (not (<= 1 |old(~a7~0)|))) (.cse6 (not (= 6 |old(~a16~0)|))) (.cse15 (not .cse17)) (.cse9 (<= 1 ~a7~0)) (.cse14 (= ~a21~0 1)) (.cse3 (= ~a16~0 |old(~a16~0)|)) (.cse11 (<= ~a7~0 1)) (.cse13 (not (<= |old(~a7~0)| 1))) (.cse16 (not (= |old(~a21~0)| 1))) (.cse18 (and .cse0 .cse1 .cse2 .cse4 .cse20 .cse5)) (.cse23 (not (= 0 |old(~a20~0)|))) (.cse7 (not (= |old(~a7~0)| 0))) (.cse19 (not (= 4 |old(~a16~0)|)))) (and (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) .cse6 .cse7) (or .cse8 (and .cse9 .cse0 .cse1 .cse2 .cse3 .cse10 .cse11) .cse12 .cse13) (or (and .cse0 .cse14 .cse2 .cse3 .cse4 .cse5) .cse15 .cse16 .cse7) (or (not (= |old(~a17~0)| 1)) .cse17 .cse18 .cse7 .cse19) (or .cse8 .cse17 (and .cse0 .cse1 .cse2 .cse10 .cse20 .cse5) .cse7 .cse19) (or .cse12 .cse13 .cse21 (and .cse9 .cse0 .cse1 .cse2 .cse4 .cse22 .cse11)) (or .cse12 .cse13 .cse23 (and .cse9 .cse0 .cse1 .cse2 .cse4 .cse20 .cse11) .cse19) (or (and .cse0 .cse1 .cse2 .cse4 .cse22 .cse5) .cse21 .cse7) (or .cse12 .cse6 .cse15 (and .cse9 .cse0 .cse14 .cse2 .cse3 .cse4 .cse11) .cse13 .cse16) (or .cse18 .cse23 .cse7 .cse19)))) [2020-10-26 20:33:22,008 INFO L274 CegarLoopResult]: For program point L489-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:22,009 INFO L274 CegarLoopResult]: For program point L456-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:22,009 INFO L274 CegarLoopResult]: For program point L423-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:22,009 INFO L274 CegarLoopResult]: For program point L357(lines 357 392) no Hoare annotation was computed. [2020-10-26 20:33:22,009 INFO L274 CegarLoopResult]: For program point L258(lines 258 392) no Hoare annotation was computed. [2020-10-26 20:33:22,009 INFO L274 CegarLoopResult]: For program point L225(lines 225 392) no Hoare annotation was computed. [2020-10-26 20:33:22,009 INFO L274 CegarLoopResult]: For program point L126(lines 126 392) no Hoare annotation was computed. [2020-10-26 20:33:22,009 INFO L274 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-26 20:33:22,009 INFO L274 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-26 20:33:22,009 INFO L274 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-26 20:33:22,009 INFO L274 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-26 20:33:22,009 INFO L274 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-26 20:33:22,009 INFO L274 CegarLoopResult]: For program point L94(lines 94 392) no Hoare annotation was computed. [2020-10-26 20:33:22,010 INFO L274 CegarLoopResult]: For program point L326(lines 326 392) no Hoare annotation was computed. [2020-10-26 20:33:22,010 INFO L274 CegarLoopResult]: For program point L558-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:22,010 INFO L274 CegarLoopResult]: For program point L525-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:22,010 INFO L274 CegarLoopResult]: For program point L492-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:22,010 INFO L274 CegarLoopResult]: For program point L459-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:22,010 INFO L274 CegarLoopResult]: For program point L393(lines 393 395) no Hoare annotation was computed. [2020-10-26 20:33:22,010 INFO L274 CegarLoopResult]: For program point L426-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:22,010 INFO L274 CegarLoopResult]: For program point L393-2(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:22,010 INFO L274 CegarLoopResult]: For program point L294(lines 294 392) no Hoare annotation was computed. [2020-10-26 20:33:22,010 INFO L274 CegarLoopResult]: For program point L162(lines 162 392) no Hoare annotation was computed. [2020-10-26 20:33:22,010 INFO L274 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-26 20:33:22,010 INFO L274 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-26 20:33:22,010 INFO L274 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-26 20:33:22,011 INFO L274 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-26 20:33:22,011 INFO L274 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-26 20:33:22,011 INFO L274 CegarLoopResult]: For program point L394(line 394) no Hoare annotation was computed. [2020-10-26 20:33:22,011 INFO L274 CegarLoopResult]: For program point L196(lines 196 392) no Hoare annotation was computed. [2020-10-26 20:33:22,011 INFO L274 CegarLoopResult]: For program point L64(lines 64 392) no Hoare annotation was computed. [2020-10-26 20:33:22,011 INFO L274 CegarLoopResult]: For program point L263(lines 263 392) no Hoare annotation was computed. [2020-10-26 20:33:22,011 INFO L274 CegarLoopResult]: For program point L131(lines 131 392) no Hoare annotation was computed. [2020-10-26 20:33:22,011 INFO L274 CegarLoopResult]: For program point L561-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:22,011 INFO L274 CegarLoopResult]: For program point L528-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:22,011 INFO L274 CegarLoopResult]: For program point L495-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:22,011 INFO L274 CegarLoopResult]: For program point L462-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:22,011 INFO L274 CegarLoopResult]: For program point L429-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:22,011 INFO L274 CegarLoopResult]: For program point L363(lines 363 392) no Hoare annotation was computed. [2020-10-26 20:33:22,012 INFO L274 CegarLoopResult]: For program point L396-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:22,012 INFO L274 CegarLoopResult]: For program point L99(lines 99 392) no Hoare annotation was computed. [2020-10-26 20:33:22,012 INFO L274 CegarLoopResult]: For program point L33(lines 33 392) no Hoare annotation was computed. [2020-10-26 20:33:22,012 INFO L274 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-26 20:33:22,012 INFO L274 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-26 20:33:22,012 INFO L274 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-26 20:33:22,012 INFO L274 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-26 20:33:22,012 INFO L274 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-26 20:33:22,012 INFO L274 CegarLoopResult]: For program point L397(line 397) no Hoare annotation was computed. [2020-10-26 20:33:22,012 INFO L274 CegarLoopResult]: For program point L331(lines 331 392) no Hoare annotation was computed. [2020-10-26 20:33:22,012 INFO L274 CegarLoopResult]: For program point L199(lines 199 392) no Hoare annotation was computed. [2020-10-26 20:33:22,012 INFO L274 CegarLoopResult]: For program point L67(lines 67 392) no Hoare annotation was computed. [2020-10-26 20:33:22,012 INFO L274 CegarLoopResult]: For program point L365(lines 365 392) no Hoare annotation was computed. [2020-10-26 20:33:22,013 INFO L274 CegarLoopResult]: For program point L233(lines 233 392) no Hoare annotation was computed. [2020-10-26 20:33:22,013 INFO L274 CegarLoopResult]: For program point L167(lines 167 392) no Hoare annotation was computed. [2020-10-26 20:33:22,013 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:33:22,013 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a21~0 1) (= ~a20~0 1) (= 5 ~a16~0) (= ~a7~0 0) (= ~a17~0 1)) [2020-10-26 20:33:22,013 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-26 20:33:22,013 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:33:22,013 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 579 596) the Hoare annotation is: (or (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 1) (= ~a20~0 |old(~a20~0)|) (= ~a8~0 |old(~a8~0)|) (= 5 ~a16~0) (= ~a7~0 0)) (not (= |old(~a17~0)| 1)) (not (= |old(~a20~0)| 1)) (not (= 5 |old(~a16~0)|)) (not (= |old(~a21~0)| 1)) (not (= |old(~a7~0)| 0))) [2020-10-26 20:33:22,013 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 579 596) no Hoare annotation was computed. [2020-10-26 20:33:22,014 INFO L270 CegarLoopResult]: At program point L593(line 593) the Hoare annotation is: (let ((.cse10 (= ~a20~0 1))) (let ((.cse4 (= ~a20~0 0)) (.cse1 (= ~a16~0 4)) (.cse2 (not .cse10)) (.cse5 (= 5 ~a16~0)) (.cse0 (= ~a8~0 13)) (.cse3 (= ~a7~0 0)) (.cse7 (<= 1 ~a7~0)) (.cse9 (= ~a21~0 1)) (.cse6 (= ~a16~0 6)) (.cse8 (<= ~a7~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse1 .cse3) (and .cse5 .cse3) (and .cse6 .cse3) (not (= |old(~a20~0)| 1)) (and .cse7 .cse4 .cse1 .cse8) (not (= |old(~a21~0)| 1)) (and .cse1 .cse2 .cse3 (= ~a17~0 1)) (and .cse7 .cse5 .cse8) (not (= |old(~a17~0)| 1)) (and .cse7 .cse0 .cse8) (and .cse9 .cse10 .cse3) (and .cse7 .cse9 .cse6 .cse10 .cse8) (not (= 5 |old(~a16~0)|)) (not (= |old(~a7~0)| 0))))) [2020-10-26 20:33:22,014 INFO L274 CegarLoopResult]: For program point L593-1(line 593) no Hoare annotation was computed. [2020-10-26 20:33:22,014 INFO L274 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-10-26 20:33:22,014 INFO L270 CegarLoopResult]: At program point L585-2(lines 585 595) the Hoare annotation is: (let ((.cse10 (= ~a20~0 1))) (let ((.cse4 (= ~a20~0 0)) (.cse1 (= ~a16~0 4)) (.cse2 (not .cse10)) (.cse5 (= 5 ~a16~0)) (.cse0 (= ~a8~0 13)) (.cse3 (= ~a7~0 0)) (.cse7 (<= 1 ~a7~0)) (.cse9 (= ~a21~0 1)) (.cse6 (= ~a16~0 6)) (.cse8 (<= ~a7~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse1 .cse3) (and .cse5 .cse3) (and .cse6 .cse3) (not (= |old(~a20~0)| 1)) (and .cse7 .cse4 .cse1 .cse8) (not (= |old(~a21~0)| 1)) (and .cse1 .cse2 .cse3 (= ~a17~0 1)) (and .cse7 .cse5 .cse8) (not (= |old(~a17~0)| 1)) (and .cse7 .cse0 .cse8) (and .cse9 .cse10 .cse3) (and .cse7 .cse9 .cse6 .cse10 .cse8) (not (= 5 |old(~a16~0)|)) (not (= |old(~a7~0)| 0))))) [2020-10-26 20:33:22,014 INFO L274 CegarLoopResult]: For program point L585-3(lines 579 596) no Hoare annotation was computed. [2020-10-26 20:33:22,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 08:33:22 BoogieIcfgContainer [2020-10-26 20:33:22,051 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 20:33:22,055 INFO L168 Benchmark]: Toolchain (without parser) took 88243.14 ms. Allocated memory was 151.0 MB in the beginning and 1.2 GB in the end (delta: 1.1 GB). Free memory was 104.5 MB in the beginning and 523.2 MB in the end (delta: -418.7 MB). Peak memory consumption was 704.2 MB. Max. memory is 8.0 GB. [2020-10-26 20:33:22,057 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory is still 123.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 20:33:22,058 INFO L168 Benchmark]: CACSL2BoogieTranslator took 762.85 ms. Allocated memory is still 151.0 MB. Free memory was 103.5 MB in the beginning and 123.0 MB in the end (delta: -19.6 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. [2020-10-26 20:33:22,059 INFO L168 Benchmark]: Boogie Preprocessor took 134.95 ms. Allocated memory is still 151.0 MB. Free memory was 123.0 MB in the beginning and 118.3 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-26 20:33:22,060 INFO L168 Benchmark]: RCFGBuilder took 1831.83 ms. Allocated memory is still 151.0 MB. Free memory was 118.3 MB in the beginning and 74.8 MB in the end (delta: 43.5 MB). Peak memory consumption was 56.6 MB. Max. memory is 8.0 GB. [2020-10-26 20:33:22,060 INFO L168 Benchmark]: TraceAbstraction took 85498.61 ms. Allocated memory was 151.0 MB in the beginning and 1.2 GB in the end (delta: 1.1 GB). Free memory was 74.3 MB in the beginning and 523.2 MB in the end (delta: -449.0 MB). Peak memory consumption was 673.5 MB. Max. memory is 8.0 GB. [2020-10-26 20:33:22,067 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory is still 123.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 762.85 ms. Allocated memory is still 151.0 MB. Free memory was 103.5 MB in the beginning and 123.0 MB in the end (delta: -19.6 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 134.95 ms. Allocated memory is still 151.0 MB. Free memory was 123.0 MB in the beginning and 118.3 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1831.83 ms. Allocated memory is still 151.0 MB. Free memory was 118.3 MB in the beginning and 74.8 MB in the end (delta: 43.5 MB). Peak memory consumption was 56.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 85498.61 ms. Allocated memory was 151.0 MB in the beginning and 1.2 GB in the end (delta: 1.1 GB). Free memory was 74.3 MB in the beginning and 523.2 MB in the end (delta: -449.0 MB). Peak memory consumption was 673.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: ((((((((((((((((a8 == 13 && a16 == 4) && !(a20 == 1)) && a7 == 0) || ((a20 == 0 && a16 == 4) && a7 == 0)) || (5 == a16 && a7 == 0)) || (a16 == 6 && a7 == 0)) || !(\old(a20) == 1)) || (((1 <= a7 && a20 == 0) && a16 == 4) && a7 <= 1)) || !(\old(a21) == 1)) || (((a16 == 4 && !(a20 == 1)) && a7 == 0) && a17 == 1)) || ((1 <= a7 && 5 == a16) && a7 <= 1)) || !(\old(a17) == 1)) || ((1 <= a7 && a8 == 13) && a7 <= 1)) || ((a21 == 1 && a20 == 1) && a7 == 0)) || ((((1 <= a7 && a21 == 1) && a16 == 6) && a20 == 1) && a7 <= 1)) || !(5 == \old(a16))) || !(\old(a7) == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 211 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 79.1s, OverallIterations: 12, TraceHistogramMax: 7, AutomataDifference: 23.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 359 SDtfs, 4053 SDslu, 454 SDs, 0 SdLazy, 9652 SolverSat, 1222 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 261 GetRequests, 148 SyntacticMatches, 8 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 4.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3492occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 12 MinimizatonAttempts, 702 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 374 PreInvPairs, 438 NumberOfFragments, 894 HoareAnnotationTreeSize, 374 FomulaSimplifications, 240109 FormulaSimplificationTreeSizeReduction, 1.7s HoareSimplificationTime, 9 FomulaSimplificationsInter, 21984 FormulaSimplificationTreeSizeReductionInter, 4.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 52.4s InterpolantComputationTime, 2549 NumberOfCodeBlocks, 2549 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 2537 ConstructedInterpolants, 0 QuantifiedInterpolants, 2017346 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 2 PerfectInterpolantSequences, 2259/2473 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...