/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label17.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 12:49:07,442 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 12:49:07,445 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 12:49:07,507 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 12:49:07,508 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 12:49:07,516 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 12:49:07,519 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 12:49:07,525 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 12:49:07,528 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 12:49:07,535 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 12:49:07,537 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 12:49:07,538 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 12:49:07,539 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 12:49:07,543 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 12:49:07,546 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 12:49:07,549 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 12:49:07,551 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 12:49:07,554 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 12:49:07,573 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 12:49:07,581 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 12:49:07,583 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 12:49:07,585 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 12:49:07,587 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 12:49:07,590 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 12:49:07,599 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 12:49:07,600 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 12:49:07,601 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 12:49:07,604 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 12:49:07,604 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 12:49:07,606 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 12:49:07,606 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 12:49:07,607 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 12:49:07,610 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 12:49:07,611 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 12:49:07,613 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 12:49:07,613 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 12:49:07,614 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 12:49:07,614 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 12:49:07,615 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 12:49:07,616 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 12:49:07,617 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 12:49:07,625 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-28 12:49:07,677 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 12:49:07,677 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 12:49:07,681 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 12:49:07,682 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 12:49:07,682 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 12:49:07,682 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 12:49:07,682 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 12:49:07,683 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 12:49:07,683 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 12:49:07,683 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 12:49:07,685 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 12:49:07,685 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 12:49:07,685 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 12:49:07,685 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 12:49:07,686 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 12:49:07,686 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 12:49:07,686 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 12:49:07,687 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 12:49:07,687 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 12:49:07,687 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 12:49:07,688 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 12:49:07,688 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 12:49:07,688 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 12:49:07,688 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 12:49:07,689 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 12:49:07,689 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 12:49:07,689 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 12:49:07,690 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 12:49:07,690 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 12:49:07,690 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 12:49:08,168 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 12:49:08,199 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 12:49:08,202 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 12:49:08,204 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 12:49:08,204 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 12:49:08,206 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label17.c [2020-10-28 12:49:08,294 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/60a7685b2/358d55c674984135a0a1fd67599d2896/FLAG59e17aae0 [2020-10-28 12:49:09,037 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 12:49:09,038 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label17.c [2020-10-28 12:49:09,069 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/60a7685b2/358d55c674984135a0a1fd67599d2896/FLAG59e17aae0 [2020-10-28 12:49:09,281 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/60a7685b2/358d55c674984135a0a1fd67599d2896 [2020-10-28 12:49:09,286 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 12:49:09,294 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 12:49:09,299 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 12:49:09,300 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 12:49:09,304 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 12:49:09,306 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 12:49:09" (1/1) ... [2020-10-28 12:49:09,311 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c0eefda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:49:09, skipping insertion in model container [2020-10-28 12:49:09,312 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 12:49:09" (1/1) ... [2020-10-28 12:49:09,322 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 12:49:09,389 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 12:49:09,833 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 12:49:09,845 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 12:49:10,045 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 12:49:10,069 INFO L208 MainTranslator]: Completed translation [2020-10-28 12:49:10,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:49:10 WrapperNode [2020-10-28 12:49:10,070 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 12:49:10,071 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 12:49:10,071 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 12:49:10,071 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 12:49:10,086 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:49:10" (1/1) ... [2020-10-28 12:49:10,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:49:10" (1/1) ... [2020-10-28 12:49:10,112 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:49:10" (1/1) ... [2020-10-28 12:49:10,113 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:49:10" (1/1) ... [2020-10-28 12:49:10,191 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:49:10" (1/1) ... [2020-10-28 12:49:10,220 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:49:10" (1/1) ... [2020-10-28 12:49:10,235 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:49:10" (1/1) ... [2020-10-28 12:49:10,247 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 12:49:10,248 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 12:49:10,249 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 12:49:10,249 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 12:49:10,251 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:49:10" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 12:49:10,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 12:49:10,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 12:49:10,338 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 12:49:10,338 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-28 12:49:10,339 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 12:49:10,339 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-28 12:49:10,340 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 12:49:10,340 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 12:49:10,341 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 12:49:10,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 12:49:10,343 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 12:49:10,343 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-28 12:49:10,343 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 12:49:10,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 12:49:10,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 12:49:10,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 12:49:10,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 12:49:10,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 12:49:10,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 12:49:11,903 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 12:49:11,904 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 12:49:11,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 12:49:11 BoogieIcfgContainer [2020-10-28 12:49:11,907 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 12:49:11,909 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 12:49:11,909 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 12:49:11,913 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 12:49:11,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 12:49:09" (1/3) ... [2020-10-28 12:49:11,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ca8b991 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 12:49:11, skipping insertion in model container [2020-10-28 12:49:11,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:49:10" (2/3) ... [2020-10-28 12:49:11,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ca8b991 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 12:49:11, skipping insertion in model container [2020-10-28 12:49:11,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 12:49:11" (3/3) ... [2020-10-28 12:49:11,916 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label17.c [2020-10-28 12:49:11,929 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 12:49:11,935 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 12:49:11,949 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 12:49:11,979 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 12:49:11,979 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 12:49:11,979 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 12:49:11,979 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 12:49:11,979 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 12:49:11,979 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 12:49:11,980 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 12:49:11,980 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 12:49:12,004 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states. [2020-10-28 12:49:12,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-28 12:49:12,021 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:49:12,022 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] [2020-10-28 12:49:12,023 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:49:12,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:49:12,030 INFO L82 PathProgramCache]: Analyzing trace with hash -1399507530, now seen corresponding path program 1 times [2020-10-28 12:49:12,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:49:12,039 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [931433697] [2020-10-28 12:49:12,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:49:12,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:12,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:12,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:12,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 12:49:12,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:12,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 689 [2020-10-28 12:49:12,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:12,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:12,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:49:12,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:49:12,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-28 12:49:12,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 12:49:13,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:49:13,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:13,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:13,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:13,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:49:13,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:13,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-28 12:49:13,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:13,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:13,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:49:13,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:49:13,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:49:13,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:49:13,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:49:13,342 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [931433697] [2020-10-28 12:49:13,344 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:49:13,345 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 12:49:13,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267789662] [2020-10-28 12:49:13,351 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 12:49:13,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:49:13,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 12:49:13,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 12:49:13,376 INFO L87 Difference]: Start difference. First operand 258 states. Second operand 4 states. [2020-10-28 12:49:16,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:49:16,059 INFO L93 Difference]: Finished difference Result 719 states and 1262 transitions. [2020-10-28 12:49:16,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:49:16,062 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 63 [2020-10-28 12:49:16,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:49:16,084 INFO L225 Difference]: With dead ends: 719 [2020-10-28 12:49:16,085 INFO L226 Difference]: Without dead ends: 381 [2020-10-28 12:49:16,097 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:49:16,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2020-10-28 12:49:16,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 377. [2020-10-28 12:49:16,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 377 states. [2020-10-28 12:49:16,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 529 transitions. [2020-10-28 12:49:16,185 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 529 transitions. Word has length 63 [2020-10-28 12:49:16,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:49:16,186 INFO L481 AbstractCegarLoop]: Abstraction has 377 states and 529 transitions. [2020-10-28 12:49:16,186 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 12:49:16,186 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 529 transitions. [2020-10-28 12:49:16,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-28 12:49:16,194 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:49:16,194 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:49:16,194 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 12:49:16,195 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:49:16,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:49:16,196 INFO L82 PathProgramCache]: Analyzing trace with hash -1023927035, now seen corresponding path program 1 times [2020-10-28 12:49:16,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:49:16,196 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [548917943] [2020-10-28 12:49:16,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:49:16,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:16,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:16,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:16,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:18,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:18,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-28 12:49:18,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:49:18,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2460 [2020-10-28 12:49:18,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:18,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:18,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:49:18,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:49:18,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-28 12:49:18,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:49:18,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:49:18,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:18,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:18,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:18,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:49:18,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:18,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 12:49:18,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:18,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:18,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:49:18,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:49:18,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:49:18,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 12:49:18,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:49:18,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:18,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:19,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:19,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-28 12:49:19,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:19,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-10-28 12:49:19,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:19,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:19,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:49:19,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:49:19,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-28 12:49:19,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:49:19,218 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:49:19,218 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [548917943] [2020-10-28 12:49:19,219 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:49:19,219 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 12:49:19,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732466216] [2020-10-28 12:49:19,222 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:49:19,222 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:49:19,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:49:19,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:49:19,226 INFO L87 Difference]: Start difference. First operand 377 states and 529 transitions. Second operand 7 states. [2020-10-28 12:49:19,374 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-28 12:49:22,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:49:22,046 INFO L93 Difference]: Finished difference Result 1140 states and 1629 transitions. [2020-10-28 12:49:22,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 12:49:22,047 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 146 [2020-10-28 12:49:22,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:49:22,064 INFO L225 Difference]: With dead ends: 1140 [2020-10-28 12:49:22,067 INFO L226 Difference]: Without dead ends: 769 [2020-10-28 12:49:22,072 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:49:22,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769 states. [2020-10-28 12:49:22,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 769 to 751. [2020-10-28 12:49:22,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 751 states. [2020-10-28 12:49:22,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 990 transitions. [2020-10-28 12:49:22,168 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 990 transitions. Word has length 146 [2020-10-28 12:49:22,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:49:22,172 INFO L481 AbstractCegarLoop]: Abstraction has 751 states and 990 transitions. [2020-10-28 12:49:22,172 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:49:22,172 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 990 transitions. [2020-10-28 12:49:22,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2020-10-28 12:49:22,189 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:49:22,189 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-28 12:49:22,190 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 12:49:22,190 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:49:22,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:49:22,191 INFO L82 PathProgramCache]: Analyzing trace with hash -441856086, now seen corresponding path program 1 times [2020-10-28 12:49:22,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:49:22,191 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [683846916] [2020-10-28 12:49:22,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:49:22,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:22,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:22,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:22,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:22,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:27,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:27,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 233 [2020-10-28 12:49:27,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:49:27,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-28 12:49:27,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:27,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:27,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:49:27,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-28 12:49:27,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-28 12:49:27,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:49:27,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:49:27,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:27,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:27,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:27,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:49:27,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:27,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 12:49:27,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:27,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:27,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:49:27,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:49:27,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:49:27,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:27,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:49:27,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:27,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:27,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:27,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-28 12:49:27,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:27,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-28 12:49:27,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:27,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:27,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:49:27,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:49:27,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-28 12:49:27,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:27,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-28 12:49:27,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:27,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:27,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:27,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-28 12:49:27,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:27,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-28 12:49:27,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:27,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:27,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:49:27,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:49:27,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-28 12:49:27,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:49:27,863 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 180 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 12:49:27,863 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [683846916] [2020-10-28 12:49:27,864 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:49:27,864 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:49:27,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863936244] [2020-10-28 12:49:27,865 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:49:27,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:49:27,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:49:27,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:49:27,866 INFO L87 Difference]: Start difference. First operand 751 states and 990 transitions. Second operand 7 states. [2020-10-28 12:49:30,899 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-10-28 12:49:31,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:49:31,107 INFO L93 Difference]: Finished difference Result 1886 states and 2549 transitions. [2020-10-28 12:49:31,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:49:31,115 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 219 [2020-10-28 12:49:31,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:49:31,122 INFO L225 Difference]: With dead ends: 1886 [2020-10-28 12:49:31,122 INFO L226 Difference]: Without dead ends: 955 [2020-10-28 12:49:31,125 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:49:31,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2020-10-28 12:49:31,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 937. [2020-10-28 12:49:31,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 937 states. [2020-10-28 12:49:31,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 937 states to 937 states and 1066 transitions. [2020-10-28 12:49:31,162 INFO L78 Accepts]: Start accepts. Automaton has 937 states and 1066 transitions. Word has length 219 [2020-10-28 12:49:31,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:49:31,163 INFO L481 AbstractCegarLoop]: Abstraction has 937 states and 1066 transitions. [2020-10-28 12:49:31,163 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:49:31,163 INFO L276 IsEmpty]: Start isEmpty. Operand 937 states and 1066 transitions. [2020-10-28 12:49:31,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-10-28 12:49:31,167 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:49:31,168 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-28 12:49:31,168 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 12:49:31,168 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:49:31,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:49:31,169 INFO L82 PathProgramCache]: Analyzing trace with hash 1729556302, now seen corresponding path program 1 times [2020-10-28 12:49:31,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:49:31,170 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1881754006] [2020-10-28 12:49:31,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:49:31,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:31,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:31,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:31,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:36,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:36,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:36,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 259 [2020-10-28 12:49:36,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:49:36,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5054 [2020-10-28 12:49:36,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:36,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:36,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:49:36,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:49:36,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-28 12:49:36,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:36,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:49:36,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:36,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:36,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:36,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:49:36,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:36,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 12:49:36,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:36,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:36,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:49:36,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:49:36,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:49:36,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:49:36,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:49:36,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:36,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:36,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:36,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:49:36,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:36,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 180 [2020-10-28 12:49:36,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:36,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:36,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:49:36,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:49:36,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-28 12:49:36,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:36,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-28 12:49:36,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:36,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:36,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:36,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-28 12:49:36,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:36,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-28 12:49:36,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:36,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:36,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:49:36,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-28 12:49:36,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:49:36,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:36,863 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 110 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-28 12:49:36,864 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1881754006] [2020-10-28 12:49:36,864 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:49:36,864 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 12:49:36,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780976150] [2020-10-28 12:49:36,865 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 12:49:36,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:49:36,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 12:49:36,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:49:36,866 INFO L87 Difference]: Start difference. First operand 937 states and 1066 transitions. Second operand 8 states. [2020-10-28 12:49:39,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:49:39,094 INFO L93 Difference]: Finished difference Result 2808 states and 3225 transitions. [2020-10-28 12:49:39,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:49:39,096 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 245 [2020-10-28 12:49:39,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:49:39,110 INFO L225 Difference]: With dead ends: 2808 [2020-10-28 12:49:39,110 INFO L226 Difference]: Without dead ends: 1685 [2020-10-28 12:49:39,114 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-28 12:49:39,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1685 states. [2020-10-28 12:49:39,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1685 to 1681. [2020-10-28 12:49:39,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1681 states. [2020-10-28 12:49:39,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1681 states to 1681 states and 1833 transitions. [2020-10-28 12:49:39,166 INFO L78 Accepts]: Start accepts. Automaton has 1681 states and 1833 transitions. Word has length 245 [2020-10-28 12:49:39,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:49:39,167 INFO L481 AbstractCegarLoop]: Abstraction has 1681 states and 1833 transitions. [2020-10-28 12:49:39,167 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 12:49:39,167 INFO L276 IsEmpty]: Start isEmpty. Operand 1681 states and 1833 transitions. [2020-10-28 12:49:39,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2020-10-28 12:49:39,174 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:49:39,175 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:49:39,175 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 12:49:39,175 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:49:39,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:49:39,176 INFO L82 PathProgramCache]: Analyzing trace with hash 250083954, now seen corresponding path program 1 times [2020-10-28 12:49:39,176 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:49:39,177 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1879253522] [2020-10-28 12:49:39,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:49:39,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:39,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:39,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:39,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:43,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:44,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:44,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 389 [2020-10-28 12:49:44,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:49:44,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-28 12:49:44,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:44,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:44,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:49:44,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 143 [2020-10-28 12:49:44,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-28 12:49:44,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 12:49:44,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:49:44,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:44,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:44,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:44,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:49:44,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:44,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 12:49:44,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:44,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:44,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:49:44,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:49:44,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:49:44,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 12:49:44,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:49:44,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:44,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:44,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:44,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-28 12:49:44,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:44,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-28 12:49:44,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:44,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:44,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:49:44,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:49:44,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-28 12:49:44,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:49:44,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-28 12:49:44,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:44,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:45,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:45,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:49:45,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:45,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 402 [2020-10-28 12:49:45,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:45,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:45,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:49:45,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:49:45,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:49:45,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:49:45,437 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 240 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 12:49:45,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1879253522] [2020-10-28 12:49:45,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:49:45,438 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:49:45,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663352378] [2020-10-28 12:49:45,439 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:49:45,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:49:45,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:49:45,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:49:45,440 INFO L87 Difference]: Start difference. First operand 1681 states and 1833 transitions. Second operand 7 states. [2020-10-28 12:49:47,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:49:47,726 INFO L93 Difference]: Finished difference Result 3800 states and 4339 transitions. [2020-10-28 12:49:47,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:49:47,727 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 375 [2020-10-28 12:49:47,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:49:47,740 INFO L225 Difference]: With dead ends: 3800 [2020-10-28 12:49:47,740 INFO L226 Difference]: Without dead ends: 2117 [2020-10-28 12:49:47,746 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:49:47,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2117 states. [2020-10-28 12:49:47,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2117 to 2069. [2020-10-28 12:49:47,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2069 states. [2020-10-28 12:49:47,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2069 states to 2069 states and 2262 transitions. [2020-10-28 12:49:47,819 INFO L78 Accepts]: Start accepts. Automaton has 2069 states and 2262 transitions. Word has length 375 [2020-10-28 12:49:47,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:49:47,820 INFO L481 AbstractCegarLoop]: Abstraction has 2069 states and 2262 transitions. [2020-10-28 12:49:47,820 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:49:47,820 INFO L276 IsEmpty]: Start isEmpty. Operand 2069 states and 2262 transitions. [2020-10-28 12:49:47,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 553 [2020-10-28 12:49:47,835 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:49:47,836 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:49:47,836 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 12:49:47,836 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:49:47,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:49:47,837 INFO L82 PathProgramCache]: Analyzing trace with hash -1311800947, now seen corresponding path program 1 times [2020-10-28 12:49:47,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:49:47,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [926738004] [2020-10-28 12:49:47,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:49:47,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:48,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:48,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:48,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:48,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:52,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:52,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:52,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 568 [2020-10-28 12:49:52,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 12:49:52,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-28 12:49:52,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:52,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:52,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:49:52,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 322 [2020-10-28 12:49:52,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-28 12:49:52,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:53,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:49:53,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:53,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:53,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:53,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:49:53,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:53,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 12:49:53,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:53,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:53,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:49:53,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:49:53,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:49:53,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:53,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:49:53,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:53,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:53,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:53,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-28 12:49:53,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:53,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-28 12:49:53,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:53,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:53,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:49:53,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:49:53,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:49:53,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:53,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-28 12:49:53,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:53,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:53,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:53,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:49:53,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:53,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-10-28 12:49:53,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:53,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:53,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:49:53,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:49:53,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-28 12:49:53,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:49:53,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2020-10-28 12:49:53,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:53,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:53,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:49:53,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:49:53,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:49:53,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-10-28 12:49:53,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:49:53,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:49:53,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:49:53,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:49:53,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:49:53,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 12:49:54,203 INFO L134 CoverageAnalysis]: Checked inductivity of 608 backedges. 474 proven. 2 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2020-10-28 12:49:54,203 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [926738004] [2020-10-28 12:49:54,204 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:49:54,204 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:49:54,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159879738] [2020-10-28 12:49:54,205 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:49:54,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:49:54,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:49:54,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:49:54,206 INFO L87 Difference]: Start difference. First operand 2069 states and 2262 transitions. Second operand 7 states. [2020-10-28 12:49:56,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:49:56,467 INFO L93 Difference]: Finished difference Result 5254 states and 5850 transitions. [2020-10-28 12:49:56,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:49:56,475 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 552 [2020-10-28 12:49:56,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:49:56,492 INFO L225 Difference]: With dead ends: 5254 [2020-10-28 12:49:56,492 INFO L226 Difference]: Without dead ends: 3189 [2020-10-28 12:49:56,498 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:49:56,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3189 states. [2020-10-28 12:49:56,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3189 to 2813. [2020-10-28 12:49:56,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2813 states. [2020-10-28 12:49:56,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2813 states to 2813 states and 3161 transitions. [2020-10-28 12:49:56,594 INFO L78 Accepts]: Start accepts. Automaton has 2813 states and 3161 transitions. Word has length 552 [2020-10-28 12:49:56,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:49:56,596 INFO L481 AbstractCegarLoop]: Abstraction has 2813 states and 3161 transitions. [2020-10-28 12:49:56,596 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:49:56,596 INFO L276 IsEmpty]: Start isEmpty. Operand 2813 states and 3161 transitions. [2020-10-28 12:49:56,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 629 [2020-10-28 12:49:56,604 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:49:56,605 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:49:56,605 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 12:49:56,605 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:49:56,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:49:56,606 INFO L82 PathProgramCache]: Analyzing trace with hash 1822226952, now seen corresponding path program 1 times [2020-10-28 12:49:56,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:49:56,607 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1247464032] [2020-10-28 12:49:56,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:49:56,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:49:56,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:56,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:57,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:49:58,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:01,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:01,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 646 [2020-10-28 12:50:01,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:50:01,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5085 [2020-10-28 12:50:01,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:01,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:01,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:50:01,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 143 [2020-10-28 12:50:01,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:50:01,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 12:50:02,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:50:02,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:02,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:02,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:02,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:50:02,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:02,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:50:02,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:02,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:02,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:02,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:02,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:02,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:02,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:50:02,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:02,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:02,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:02,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-28 12:50:02,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:02,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-28 12:50:02,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:02,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:02,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:50:02,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:02,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-28 12:50:02,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:02,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-28 12:50:02,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:02,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:02,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:02,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:50:02,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:02,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 252 [2020-10-28 12:50:02,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:02,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:02,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:50:02,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:50:02,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-28 12:50:02,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:02,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2020-10-28 12:50:02,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:02,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:02,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:02,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:50:02,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:02,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-28 12:50:02,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:02,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:02,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:02,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-28 12:50:02,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:02,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:02,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2020-10-28 12:50:02,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:02,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:02,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:02,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:50:02,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:02,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-28 12:50:02,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:02,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:02,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:02,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-28 12:50:02,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:02,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:03,594 INFO L134 CoverageAnalysis]: Checked inductivity of 891 backedges. 358 proven. 249 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2020-10-28 12:50:03,595 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1247464032] [2020-10-28 12:50:03,595 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:50:03,595 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 12:50:03,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279905027] [2020-10-28 12:50:03,596 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 12:50:03,596 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:50:03,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 12:50:03,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:50:03,597 INFO L87 Difference]: Start difference. First operand 2813 states and 3161 transitions. Second operand 8 states. [2020-10-28 12:50:05,549 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-10-28 12:50:07,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:50:07,262 INFO L93 Difference]: Finished difference Result 6546 states and 7440 transitions. [2020-10-28 12:50:07,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:50:07,263 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 628 [2020-10-28 12:50:07,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:50:07,282 INFO L225 Difference]: With dead ends: 6546 [2020-10-28 12:50:07,283 INFO L226 Difference]: Without dead ends: 3729 [2020-10-28 12:50:07,291 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:50:07,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3729 states. [2020-10-28 12:50:07,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3729 to 3545. [2020-10-28 12:50:07,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3545 states. [2020-10-28 12:50:07,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3545 states to 3545 states and 3959 transitions. [2020-10-28 12:50:07,409 INFO L78 Accepts]: Start accepts. Automaton has 3545 states and 3959 transitions. Word has length 628 [2020-10-28 12:50:07,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:50:07,410 INFO L481 AbstractCegarLoop]: Abstraction has 3545 states and 3959 transitions. [2020-10-28 12:50:07,410 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 12:50:07,411 INFO L276 IsEmpty]: Start isEmpty. Operand 3545 states and 3959 transitions. [2020-10-28 12:50:07,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 655 [2020-10-28 12:50:07,419 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:50:07,420 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2020-10-28 12:50:07,420 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 12:50:07,420 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:50:07,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:50:07,421 INFO L82 PathProgramCache]: Analyzing trace with hash -237964025, now seen corresponding path program 1 times [2020-10-28 12:50:07,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:50:07,421 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [812952979] [2020-10-28 12:50:07,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:50:07,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:07,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:07,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:09,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:12,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:12,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 674 [2020-10-28 12:50:12,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:50:12,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4710 [2020-10-28 12:50:12,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:12,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:12,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:50:12,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 231 [2020-10-28 12:50:12,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 198 [2020-10-28 12:50:12,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:12,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:50:12,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:12,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:12,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:12,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:50:12,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:12,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:50:12,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:12,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:12,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:12,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:12,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:12,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:12,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:50:12,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:12,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:12,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:12,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:50:12,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:12,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 12:50:12,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:12,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:12,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:12,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:12,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:12,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 12:50:12,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:50:12,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:12,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:12,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:12,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:50:12,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:12,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-28 12:50:12,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:12,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:12,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:50:12,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:12,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-28 12:50:12,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:12,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:50:12,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:12,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:12,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:12,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:50:12,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:12,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-28 12:50:12,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:12,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:12,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:50:12,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:50:12,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-28 12:50:12,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:12,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:50:12,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:12,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:12,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:12,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:50:12,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:12,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-28 12:50:12,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:12,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:12,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:50:12,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:50:12,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-28 12:50:12,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:13,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2020-10-28 12:50:13,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:13,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:13,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:13,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:50:13,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:13,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-28 12:50:13,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:13,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:13,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:13,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-28 12:50:13,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:13,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:13,497 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 722 proven. 191 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2020-10-28 12:50:13,497 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [812952979] [2020-10-28 12:50:13,497 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:50:13,498 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 12:50:13,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590552300] [2020-10-28 12:50:13,499 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 12:50:13,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:50:13,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 12:50:13,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:50:13,500 INFO L87 Difference]: Start difference. First operand 3545 states and 3959 transitions. Second operand 8 states. [2020-10-28 12:50:15,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:50:15,491 INFO L93 Difference]: Finished difference Result 8026 states and 9029 transitions. [2020-10-28 12:50:15,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 12:50:15,491 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 654 [2020-10-28 12:50:15,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:50:15,514 INFO L225 Difference]: With dead ends: 8026 [2020-10-28 12:50:15,514 INFO L226 Difference]: Without dead ends: 4669 [2020-10-28 12:50:15,522 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-28 12:50:15,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4669 states. [2020-10-28 12:50:15,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4669 to 4477. [2020-10-28 12:50:15,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4477 states. [2020-10-28 12:50:15,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4477 states to 4477 states and 5001 transitions. [2020-10-28 12:50:15,646 INFO L78 Accepts]: Start accepts. Automaton has 4477 states and 5001 transitions. Word has length 654 [2020-10-28 12:50:15,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:50:15,647 INFO L481 AbstractCegarLoop]: Abstraction has 4477 states and 5001 transitions. [2020-10-28 12:50:15,647 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 12:50:15,647 INFO L276 IsEmpty]: Start isEmpty. Operand 4477 states and 5001 transitions. [2020-10-28 12:50:15,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 715 [2020-10-28 12:50:15,657 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:50:15,657 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:50:15,658 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 12:50:15,658 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:50:15,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:50:15,659 INFO L82 PathProgramCache]: Analyzing trace with hash 1467861007, now seen corresponding path program 1 times [2020-10-28 12:50:15,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:50:15,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2095010008] [2020-10-28 12:50:15,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:50:15,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:15,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:16,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:18,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:20,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:20,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 734 [2020-10-28 12:50:20,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:50:20,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-28 12:50:20,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:20,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:20,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:50:20,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 231 [2020-10-28 12:50:20,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:50:20,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:20,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:50:20,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:20,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:20,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:20,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:50:20,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:20,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:50:20,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:20,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:20,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:20,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:20,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:20,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:20,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:50:20,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:20,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:20,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:20,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:50:20,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:20,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 12:50:20,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:20,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:20,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:20,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:20,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:20,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:20,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:50:21,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:21,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:21,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:21,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:50:21,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:21,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-28 12:50:21,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:21,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:21,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:50:21,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:21,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-28 12:50:21,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:21,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:50:21,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:21,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:21,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:21,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:50:21,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:21,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-28 12:50:21,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:21,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:21,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:50:21,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:50:21,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-28 12:50:21,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:21,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2020-10-28 12:50:21,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:21,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:21,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:21,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:50:21,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:21,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 12:50:21,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:21,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:21,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:21,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-28 12:50:21,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:21,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:21,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2020-10-28 12:50:21,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:21,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:21,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:21,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:50:21,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:21,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-28 12:50:21,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:21,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:21,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:21,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-28 12:50:21,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:21,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:22,081 INFO L134 CoverageAnalysis]: Checked inductivity of 1303 backedges. 509 proven. 249 refuted. 0 times theorem prover too weak. 545 trivial. 0 not checked. [2020-10-28 12:50:22,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2095010008] [2020-10-28 12:50:22,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:50:22,088 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:50:22,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657610901] [2020-10-28 12:50:22,090 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:50:22,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:50:22,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:50:22,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:50:22,092 INFO L87 Difference]: Start difference. First operand 4477 states and 5001 transitions. Second operand 7 states. [2020-10-28 12:50:24,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:50:24,185 INFO L93 Difference]: Finished difference Result 9136 states and 10274 transitions. [2020-10-28 12:50:24,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 12:50:24,186 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 714 [2020-10-28 12:50:24,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:50:24,208 INFO L225 Difference]: With dead ends: 9136 [2020-10-28 12:50:24,208 INFO L226 Difference]: Without dead ends: 4847 [2020-10-28 12:50:24,217 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-28 12:50:24,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4847 states. [2020-10-28 12:50:24,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4847 to 4841. [2020-10-28 12:50:24,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4841 states. [2020-10-28 12:50:24,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4841 states to 4841 states and 5390 transitions. [2020-10-28 12:50:24,341 INFO L78 Accepts]: Start accepts. Automaton has 4841 states and 5390 transitions. Word has length 714 [2020-10-28 12:50:24,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:50:24,342 INFO L481 AbstractCegarLoop]: Abstraction has 4841 states and 5390 transitions. [2020-10-28 12:50:24,342 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:50:24,342 INFO L276 IsEmpty]: Start isEmpty. Operand 4841 states and 5390 transitions. [2020-10-28 12:50:24,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 738 [2020-10-28 12:50:24,351 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:50:24,351 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:50:24,351 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 12:50:24,352 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:50:24,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:50:24,352 INFO L82 PathProgramCache]: Analyzing trace with hash 1657918423, now seen corresponding path program 1 times [2020-10-28 12:50:24,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:50:24,353 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [276151667] [2020-10-28 12:50:24,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:50:24,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:24,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:24,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:26,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:29,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:29,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 757 [2020-10-28 12:50:29,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:50:29,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5052 [2020-10-28 12:50:29,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:29,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:29,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:50:29,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 511 [2020-10-28 12:50:29,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-28 12:50:29,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:29,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:50:29,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:29,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:29,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:29,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:50:29,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:29,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:50:29,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:29,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:29,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:29,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:29,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:29,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:29,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:50:29,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:29,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:29,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:29,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:50:29,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:29,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 12:50:29,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:29,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:29,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:29,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:29,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:29,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:29,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:50:29,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:29,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:29,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:29,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:50:29,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:29,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-28 12:50:29,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:29,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:29,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:29,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:29,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:29,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:29,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:50:29,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:29,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:29,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:29,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:50:29,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:29,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 12:50:29,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:29,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:29,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:29,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:29,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:29,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:29,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:50:29,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:29,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:30,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:30,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-28 12:50:30,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:30,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-28 12:50:30,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:30,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:30,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:50:30,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:30,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-28 12:50:30,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:30,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-28 12:50:30,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:30,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:30,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:30,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:50:30,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:30,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 189 [2020-10-28 12:50:30,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:30,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:30,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:50:30,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:50:30,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:50:30,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:50:30,965 INFO L134 CoverageAnalysis]: Checked inductivity of 1434 backedges. 773 proven. 2 refuted. 0 times theorem prover too weak. 659 trivial. 0 not checked. [2020-10-28 12:50:30,965 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [276151667] [2020-10-28 12:50:30,965 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:50:30,965 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:50:30,966 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935508292] [2020-10-28 12:50:30,966 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:50:30,967 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:50:30,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:50:30,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:50:30,968 INFO L87 Difference]: Start difference. First operand 4841 states and 5390 transitions. Second operand 7 states. [2020-10-28 12:50:33,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:50:33,024 INFO L93 Difference]: Finished difference Result 9502 states and 10602 transitions. [2020-10-28 12:50:33,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:50:33,024 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 737 [2020-10-28 12:50:33,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:50:33,046 INFO L225 Difference]: With dead ends: 9502 [2020-10-28 12:50:33,046 INFO L226 Difference]: Without dead ends: 4849 [2020-10-28 12:50:33,056 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:50:33,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4849 states. [2020-10-28 12:50:33,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4849 to 4661. [2020-10-28 12:50:33,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4661 states. [2020-10-28 12:50:33,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4661 states to 4661 states and 5193 transitions. [2020-10-28 12:50:33,175 INFO L78 Accepts]: Start accepts. Automaton has 4661 states and 5193 transitions. Word has length 737 [2020-10-28 12:50:33,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:50:33,176 INFO L481 AbstractCegarLoop]: Abstraction has 4661 states and 5193 transitions. [2020-10-28 12:50:33,176 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:50:33,176 INFO L276 IsEmpty]: Start isEmpty. Operand 4661 states and 5193 transitions. [2020-10-28 12:50:33,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 814 [2020-10-28 12:50:33,186 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:50:33,186 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:50:33,187 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 12:50:33,187 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:50:33,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:50:33,188 INFO L82 PathProgramCache]: Analyzing trace with hash -86713006, now seen corresponding path program 1 times [2020-10-28 12:50:33,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:50:33,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [239099103] [2020-10-28 12:50:33,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:50:33,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:33,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:33,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:35,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:35,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 835 [2020-10-28 12:50:35,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:50:35,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2387 [2020-10-28 12:50:35,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:35,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:35,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:50:35,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 511 [2020-10-28 12:50:35,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 12:50:35,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:35,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:50:35,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:35,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:35,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:35,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:50:35,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:35,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:50:35,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:35,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:35,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:35,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:35,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:35,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:35,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:50:35,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:35,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:35,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:35,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:50:35,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:35,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 12:50:35,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:35,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:35,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:35,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:35,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:35,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:35,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:50:35,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:35,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:35,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:35,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:50:35,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:35,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 12:50:35,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:35,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:35,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:36,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:36,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:36,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:50:36,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:50:36,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:36,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:36,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:36,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:50:36,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:36,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 12:50:36,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:36,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:36,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:36,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:36,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:36,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:36,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:50:36,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:36,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:36,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:36,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-28 12:50:36,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:36,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-28 12:50:36,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:36,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:36,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:50:36,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:36,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-28 12:50:36,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:36,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-28 12:50:36,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:36,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:36,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:36,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:50:36,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:36,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-28 12:50:36,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:36,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:36,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:50:36,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:50:36,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-28 12:50:36,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:36,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 579 [2020-10-28 12:50:36,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:36,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:36,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:36,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:50:36,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:36,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-28 12:50:36,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:36,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:36,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:36,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-28 12:50:36,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:36,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:36,936 INFO L134 CoverageAnalysis]: Checked inductivity of 1869 backedges. 653 proven. 75 refuted. 0 times theorem prover too weak. 1141 trivial. 0 not checked. [2020-10-28 12:50:36,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [239099103] [2020-10-28 12:50:36,936 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:50:36,936 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 12:50:36,936 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491260426] [2020-10-28 12:50:36,937 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 12:50:36,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:50:36,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 12:50:36,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:50:36,938 INFO L87 Difference]: Start difference. First operand 4661 states and 5193 transitions. Second operand 8 states. [2020-10-28 12:50:37,136 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-28 12:50:39,472 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-28 12:50:39,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:50:39,803 INFO L93 Difference]: Finished difference Result 10244 states and 11561 transitions. [2020-10-28 12:50:39,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 12:50:39,808 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 813 [2020-10-28 12:50:39,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:50:39,842 INFO L225 Difference]: With dead ends: 10244 [2020-10-28 12:50:39,842 INFO L226 Difference]: Without dead ends: 5585 [2020-10-28 12:50:39,854 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-28 12:50:39,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5585 states. [2020-10-28 12:50:39,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5585 to 5583. [2020-10-28 12:50:39,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5583 states. [2020-10-28 12:50:39,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5583 states to 5583 states and 6284 transitions. [2020-10-28 12:50:39,996 INFO L78 Accepts]: Start accepts. Automaton has 5583 states and 6284 transitions. Word has length 813 [2020-10-28 12:50:39,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:50:39,997 INFO L481 AbstractCegarLoop]: Abstraction has 5583 states and 6284 transitions. [2020-10-28 12:50:39,998 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 12:50:39,998 INFO L276 IsEmpty]: Start isEmpty. Operand 5583 states and 6284 transitions. [2020-10-28 12:50:40,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 904 [2020-10-28 12:50:40,015 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:50:40,015 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:50:40,016 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 12:50:40,016 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:50:40,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:50:40,017 INFO L82 PathProgramCache]: Analyzing trace with hash -1503447301, now seen corresponding path program 1 times [2020-10-28 12:50:40,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:50:40,017 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [285426073] [2020-10-28 12:50:40,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:50:40,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:40,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:40,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:40,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:41,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:45,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:45,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 927 [2020-10-28 12:50:45,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:50:45,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-28 12:50:45,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:45,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:45,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:50:45,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 343 [2020-10-28 12:50:45,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:50:45,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 15 [2020-10-28 12:50:45,432 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-28 12:50:45,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:50:45,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:45,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:45,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:45,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:50:45,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:45,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:50:45,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:45,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:45,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:45,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:45,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:45,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:45,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:50:45,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:45,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:45,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:45,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:50:45,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:45,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-28 12:50:45,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:45,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:45,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:45,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:45,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:45,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:45,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:50:45,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:45,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:45,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:45,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:50:45,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:45,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 12:50:45,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:45,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:45,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:45,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:45,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:45,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:45,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:50:45,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:45,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:45,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:45,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:50:45,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:45,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-28 12:50:45,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:45,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:45,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:50:45,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:45,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-28 12:50:45,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:45,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-10-28 12:50:45,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:45,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:46,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:46,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:50:46,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:46,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178 [2020-10-28 12:50:46,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:46,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:46,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:50:46,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:50:46,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-28 12:50:46,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:46,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 514 [2020-10-28 12:50:46,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:46,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:46,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:46,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:50:46,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:46,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 12:50:46,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:46,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:46,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:46,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-28 12:50:46,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:46,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:46,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 590 [2020-10-28 12:50:46,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:46,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:46,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:46,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:50:46,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:46,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-28 12:50:46,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:46,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:46,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:46,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-28 12:50:46,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:46,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:46,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 769 [2020-10-28 12:50:46,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:46,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:46,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:46,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-28 12:50:46,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:46,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 12:50:46,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:46,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:46,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:46,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-28 12:50:46,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:46,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:46,951 INFO L134 CoverageAnalysis]: Checked inductivity of 2399 backedges. 751 proven. 325 refuted. 0 times theorem prover too weak. 1323 trivial. 0 not checked. [2020-10-28 12:50:46,952 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [285426073] [2020-10-28 12:50:46,952 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:50:46,952 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:50:46,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755683077] [2020-10-28 12:50:46,953 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:50:46,953 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:50:46,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:50:46,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:50:46,954 INFO L87 Difference]: Start difference. First operand 5583 states and 6284 transitions. Second operand 7 states. [2020-10-28 12:50:47,759 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-10-28 12:50:49,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:50:49,277 INFO L93 Difference]: Finished difference Result 11352 states and 12790 transitions. [2020-10-28 12:50:49,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 12:50:49,278 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 903 [2020-10-28 12:50:49,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:50:49,296 INFO L225 Difference]: With dead ends: 11352 [2020-10-28 12:50:49,296 INFO L226 Difference]: Without dead ends: 5957 [2020-10-28 12:50:49,308 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:50:49,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5957 states. [2020-10-28 12:50:49,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5957 to 5583. [2020-10-28 12:50:49,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5583 states. [2020-10-28 12:50:49,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5583 states to 5583 states and 6274 transitions. [2020-10-28 12:50:49,423 INFO L78 Accepts]: Start accepts. Automaton has 5583 states and 6274 transitions. Word has length 903 [2020-10-28 12:50:49,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:50:49,424 INFO L481 AbstractCegarLoop]: Abstraction has 5583 states and 6274 transitions. [2020-10-28 12:50:49,424 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:50:49,425 INFO L276 IsEmpty]: Start isEmpty. Operand 5583 states and 6274 transitions. [2020-10-28 12:50:49,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 911 [2020-10-28 12:50:49,437 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:50:49,438 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:50:49,438 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-28 12:50:49,438 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:50:49,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:50:49,439 INFO L82 PathProgramCache]: Analyzing trace with hash 150431365, now seen corresponding path program 1 times [2020-10-28 12:50:49,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:50:49,439 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [452828512] [2020-10-28 12:50:49,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:50:49,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:49,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:49,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:50,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:54,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:54,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 934 [2020-10-28 12:50:54,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:50:54,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-10-28 12:50:54,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:54,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:54,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:50:54,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 350 [2020-10-28 12:50:54,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:50:54,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:54,902 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-28 12:50:54,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:50:54,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:54,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:54,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:54,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:50:54,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:54,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:50:54,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:54,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:54,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:54,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:54,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:54,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:54,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:50:54,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:54,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:54,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:54,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:50:54,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:54,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 12:50:54,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:55,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:55,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:55,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:55,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:55,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:55,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:50:55,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:55,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:55,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:55,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:50:55,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:55,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 12:50:55,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:55,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:55,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:55,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:55,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:55,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:55,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:50:55,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:55,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:55,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:55,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:50:55,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:55,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-28 12:50:55,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:55,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:55,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:50:55,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:55,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-28 12:50:55,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:55,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:50:55,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:55,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:55,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:55,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:50:55,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:55,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-10-28 12:50:55,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:55,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:55,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:50:55,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:50:55,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-28 12:50:55,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:55,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 521 [2020-10-28 12:50:55,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:55,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:55,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:55,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:50:55,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:55,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 12:50:55,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:55,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:55,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:55,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-28 12:50:55,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:55,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:55,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 597 [2020-10-28 12:50:55,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:55,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:55,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:55,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:50:55,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:55,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-28 12:50:55,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:55,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:55,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:55,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-28 12:50:55,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:55,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:55,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 776 [2020-10-28 12:50:55,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:55,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:55,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:55,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-28 12:50:55,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:55,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 12:50:55,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:55,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:55,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:55,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-28 12:50:55,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:55,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:56,375 INFO L134 CoverageAnalysis]: Checked inductivity of 2413 backedges. 758 proven. 325 refuted. 0 times theorem prover too weak. 1330 trivial. 0 not checked. [2020-10-28 12:50:56,376 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [452828512] [2020-10-28 12:50:56,376 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:50:56,376 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:50:56,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330941268] [2020-10-28 12:50:56,377 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:50:56,377 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:50:56,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:50:56,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:50:56,378 INFO L87 Difference]: Start difference. First operand 5583 states and 6274 transitions. Second operand 7 states. [2020-10-28 12:50:57,467 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-28 12:50:58,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:50:58,873 INFO L93 Difference]: Finished difference Result 10992 states and 12376 transitions. [2020-10-28 12:50:58,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 12:50:58,874 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 910 [2020-10-28 12:50:58,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:50:58,896 INFO L225 Difference]: With dead ends: 10992 [2020-10-28 12:50:58,896 INFO L226 Difference]: Without dead ends: 5597 [2020-10-28 12:50:58,908 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-28 12:50:58,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5597 states. [2020-10-28 12:50:59,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5597 to 5591. [2020-10-28 12:50:59,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5591 states. [2020-10-28 12:50:59,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5591 states to 5591 states and 6151 transitions. [2020-10-28 12:50:59,014 INFO L78 Accepts]: Start accepts. Automaton has 5591 states and 6151 transitions. Word has length 910 [2020-10-28 12:50:59,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:50:59,016 INFO L481 AbstractCegarLoop]: Abstraction has 5591 states and 6151 transitions. [2020-10-28 12:50:59,016 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:50:59,016 INFO L276 IsEmpty]: Start isEmpty. Operand 5591 states and 6151 transitions. [2020-10-28 12:50:59,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 992 [2020-10-28 12:50:59,029 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:50:59,030 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:50:59,030 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-28 12:50:59,031 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:50:59,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:50:59,031 INFO L82 PathProgramCache]: Analyzing trace with hash 724740588, now seen corresponding path program 1 times [2020-10-28 12:50:59,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:50:59,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [158690439] [2020-10-28 12:50:59,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:50:59,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:59,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:00,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:00,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:04,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:04,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1017 [2020-10-28 12:51:04,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:51:04,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-10-28 12:51:04,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:04,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:04,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:51:04,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 871 [2020-10-28 12:51:04,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-28 12:51:04,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:04,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:51:04,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:04,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:04,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:04,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:51:04,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:04,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:51:04,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:04,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:04,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:04,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:04,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:04,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:04,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:51:04,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:04,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:04,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:04,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:51:04,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:04,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 12:51:04,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:04,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:04,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:04,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:04,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:04,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:04,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:51:04,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:04,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:04,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:04,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:51:04,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:04,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 12:51:04,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:04,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:04,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:04,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:04,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:04,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:04,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:51:04,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:04,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:04,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:04,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:51:04,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:04,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 12:51:04,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:04,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:04,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:04,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:04,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:04,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:04,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:51:04,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:04,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:04,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:04,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:51:04,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:04,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 12:51:04,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:04,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:04,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:04,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:04,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:04,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:04,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:51:04,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:04,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:04,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:04,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:51:04,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:04,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-28 12:51:04,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:04,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:04,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:04,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:04,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:04,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:04,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:51:04,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:04,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:04,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:04,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:51:04,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:04,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 12:51:04,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:04,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:04,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:04,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:04,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:04,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:04,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:51:04,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:04,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:04,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:04,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:51:04,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:04,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-28 12:51:04,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:04,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:04,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:51:04,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:04,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-28 12:51:04,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:05,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:51:05,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:05,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:05,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:05,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:05,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-28 12:51:05,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:51:05,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-28 12:51:05,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:05,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:05,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:51:05,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:05,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 12:51:05,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:05,864 INFO L134 CoverageAnalysis]: Checked inductivity of 3028 backedges. 486 proven. 12 refuted. 0 times theorem prover too weak. 2530 trivial. 0 not checked. [2020-10-28 12:51:05,865 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [158690439] [2020-10-28 12:51:05,865 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:51:05,865 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-28 12:51:05,865 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902970503] [2020-10-28 12:51:05,866 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 12:51:05,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:51:05,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 12:51:05,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-28 12:51:05,867 INFO L87 Difference]: Start difference. First operand 5591 states and 6151 transitions. Second operand 6 states. [2020-10-28 12:51:08,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:51:08,479 INFO L93 Difference]: Finished difference Result 12638 states and 14069 transitions. [2020-10-28 12:51:08,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 12:51:08,479 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 991 [2020-10-28 12:51:08,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:51:08,517 INFO L225 Difference]: With dead ends: 12638 [2020-10-28 12:51:08,517 INFO L226 Difference]: Without dead ends: 7235 [2020-10-28 12:51:08,530 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:51:08,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7235 states. [2020-10-28 12:51:08,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7235 to 6867. [2020-10-28 12:51:08,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6867 states. [2020-10-28 12:51:08,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6867 states to 6867 states and 7636 transitions. [2020-10-28 12:51:08,676 INFO L78 Accepts]: Start accepts. Automaton has 6867 states and 7636 transitions. Word has length 991 [2020-10-28 12:51:08,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:51:08,677 INFO L481 AbstractCegarLoop]: Abstraction has 6867 states and 7636 transitions. [2020-10-28 12:51:08,677 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 12:51:08,677 INFO L276 IsEmpty]: Start isEmpty. Operand 6867 states and 7636 transitions. [2020-10-28 12:51:08,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1143 [2020-10-28 12:51:08,703 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:51:08,704 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:51:08,705 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-28 12:51:08,705 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:51:08,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:51:08,705 INFO L82 PathProgramCache]: Analyzing trace with hash -1787809257, now seen corresponding path program 1 times [2020-10-28 12:51:08,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:51:08,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1949144993] [2020-10-28 12:51:08,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:51:08,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:09,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:09,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:10,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:13,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:13,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1170 [2020-10-28 12:51:13,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:51:13,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5061 [2020-10-28 12:51:13,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:13,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:13,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:51:13,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1105 [2020-10-28 12:51:13,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-28 12:51:13,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:14,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:51:14,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:14,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:14,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:14,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:51:14,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:14,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:51:14,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:14,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:14,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:14,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:14,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:14,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:14,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:51:14,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:14,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:14,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:14,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:51:14,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:14,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 12:51:14,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:14,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:14,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:14,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:14,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:14,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:14,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:51:14,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:14,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:14,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:14,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:51:14,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:14,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 12:51:14,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:14,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:14,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:14,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:14,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:14,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:51:14,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:51:14,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:14,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:14,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:14,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:51:14,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:14,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 12:51:14,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:14,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:14,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:14,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:14,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:14,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:14,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:51:14,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:14,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:14,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:14,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:51:14,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:14,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 12:51:14,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:14,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:14,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:14,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:14,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:14,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:14,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:51:14,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:14,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:14,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:14,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:51:14,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:14,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-28 12:51:14,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:14,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:14,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:14,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:14,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:14,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:14,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:51:14,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:14,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:14,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:14,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:51:14,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:14,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 12:51:14,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:14,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:14,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:14,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:14,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:14,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:14,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:51:14,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:14,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:14,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:14,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:51:14,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:14,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-28 12:51:14,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:14,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:14,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:14,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:14,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:14,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:14,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:51:14,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:14,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:14,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:14,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-28 12:51:14,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:14,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-10-28 12:51:14,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:14,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:14,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:14,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:14,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:14,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:14,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 936 [2020-10-28 12:51:14,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:14,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:14,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:14,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-28 12:51:14,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:14,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-28 12:51:14,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:14,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:14,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:51:14,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:14,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-10-28 12:51:14,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:15,691 INFO L134 CoverageAnalysis]: Checked inductivity of 3957 backedges. 510 proven. 9 refuted. 0 times theorem prover too weak. 3438 trivial. 0 not checked. [2020-10-28 12:51:15,692 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1949144993] [2020-10-28 12:51:15,692 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:51:15,693 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 12:51:15,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778719587] [2020-10-28 12:51:15,694 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 12:51:15,694 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:51:15,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 12:51:15,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:51:15,695 INFO L87 Difference]: Start difference. First operand 6867 states and 7636 transitions. Second operand 5 states. [2020-10-28 12:51:15,898 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-28 12:51:17,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:51:17,868 INFO L93 Difference]: Finished difference Result 6869 states and 7638 transitions. [2020-10-28 12:51:17,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:51:17,874 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1142 [2020-10-28 12:51:17,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:51:17,875 INFO L225 Difference]: With dead ends: 6869 [2020-10-28 12:51:17,875 INFO L226 Difference]: Without dead ends: 0 [2020-10-28 12:51:17,887 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 12:51:17,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-28 12:51:17,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-28 12:51:17,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-28 12:51:17,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-28 12:51:17,888 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1142 [2020-10-28 12:51:17,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:51:17,888 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-28 12:51:17,888 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 12:51:17,889 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-28 12:51:17,889 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-28 12:51:17,889 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-28 12:51:17,891 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-28 12:51:18,157 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 136 [2020-10-28 12:51:18,877 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 136 [2020-10-28 12:51:19,463 WARN L193 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 46 [2020-10-28 12:51:19,573 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 25 [2020-10-28 12:51:20,968 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 243 DAG size of output: 55 [2020-10-28 12:51:21,418 WARN L193 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 46 [2020-10-28 12:51:21,993 WARN L193 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 42 [2020-10-28 12:51:21,998 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-28 12:51:21,998 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-28 12:51:21,998 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-28 12:51:21,998 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-28 12:51:21,998 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-28 12:51:21,999 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)|) (= ~inputA~0 |old(~inputA~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a15~0 |old(~a15~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a24~0 |old(~a24~0)|) (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~inputB~0 |old(~inputB~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |#t~string7.base| |old(#t~string7.base)|)) [2020-10-28 12:51:21,999 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-28 12:51:21,999 INFO L274 CegarLoopResult]: For program point L696(lines 696 872) no Hoare annotation was computed. [2020-10-28 12:51:21,999 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-28 12:51:21,999 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-28 12:51:21,999 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-28 12:51:21,999 INFO L274 CegarLoopResult]: For program point L301(lines 301 872) no Hoare annotation was computed. [2020-10-28 12:51:21,999 INFO L274 CegarLoopResult]: For program point L434(lines 434 872) no Hoare annotation was computed. [2020-10-28 12:51:21,999 INFO L274 CegarLoopResult]: For program point L368(lines 368 872) no Hoare annotation was computed. [2020-10-28 12:51:22,000 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,000 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,000 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,000 INFO L274 CegarLoopResult]: For program point L237(lines 237 872) no Hoare annotation was computed. [2020-10-28 12:51:22,000 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-28 12:51:22,000 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-28 12:51:22,000 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-28 12:51:22,000 INFO L274 CegarLoopResult]: For program point L766(lines 766 872) no Hoare annotation was computed. [2020-10-28 12:51:22,000 INFO L274 CegarLoopResult]: For program point L634(lines 634 872) no Hoare annotation was computed. [2020-10-28 12:51:22,001 INFO L274 CegarLoopResult]: For program point L502(lines 502 872) no Hoare annotation was computed. [2020-10-28 12:51:22,001 INFO L274 CegarLoopResult]: For program point L833(lines 833 872) no Hoare annotation was computed. [2020-10-28 12:51:22,001 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,001 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,001 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,001 INFO L274 CegarLoopResult]: For program point L702(lines 702 872) no Hoare annotation was computed. [2020-10-28 12:51:22,001 INFO L274 CegarLoopResult]: For program point L570(lines 570 872) no Hoare annotation was computed. [2020-10-28 12:51:22,001 INFO L270 CegarLoopResult]: At program point L174(line 174) the Hoare annotation is: (let ((.cse1 (= 5 |old(~a15~0)|))) (let ((.cse0 (not (= 10 |old(~a21~0)|))) (.cse3 (not (= |old(~a24~0)| 1))) (.cse2 (not (<= |old(~a21~0)| 9))) (.cse4 (not .cse1))) (and (or .cse0 .cse1) (or .cse2 .cse1) (or (not (<= |old(~a21~0)| 7)) (not (<= (+ |old(~a12~0)| 49) 0))) (or .cse3 (not (<= |old(~a21~0)| 8)) .cse4) (or .cse0 .cse3) (or .cse3 (not (<= |old(~a12~0)| 75)) .cse4) (or .cse3 (not (<= |old(~a12~0)| 78)) .cse2 .cse4)))) [2020-10-28 12:51:22,002 INFO L274 CegarLoopResult]: For program point L174-1(line 174) no Hoare annotation was computed. [2020-10-28 12:51:22,002 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-28 12:51:22,002 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-28 12:51:22,002 INFO L274 CegarLoopResult]: For program point L307(lines 307 872) no Hoare annotation was computed. [2020-10-28 12:51:22,002 INFO L274 CegarLoopResult]: For program point L440(lines 440 872) no Hoare annotation was computed. [2020-10-28 12:51:22,002 INFO L274 CegarLoopResult]: For program point L374(lines 374 872) no Hoare annotation was computed. [2020-10-28 12:51:22,002 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,002 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,002 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,002 INFO L274 CegarLoopResult]: For program point L243(lines 243 872) no Hoare annotation was computed. [2020-10-28 12:51:22,003 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-28 12:51:22,003 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-28 12:51:22,003 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-28 12:51:22,003 INFO L274 CegarLoopResult]: For program point L640(lines 640 872) no Hoare annotation was computed. [2020-10-28 12:51:22,003 INFO L274 CegarLoopResult]: For program point L508(lines 508 872) no Hoare annotation was computed. [2020-10-28 12:51:22,003 INFO L274 CegarLoopResult]: For program point L839(lines 839 872) no Hoare annotation was computed. [2020-10-28 12:51:22,003 INFO L274 CegarLoopResult]: For program point L773(lines 773 872) no Hoare annotation was computed. [2020-10-28 12:51:22,003 INFO L274 CegarLoopResult]: For program point L575(lines 575 872) no Hoare annotation was computed. [2020-10-28 12:51:22,003 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,003 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,004 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,004 INFO L274 CegarLoopResult]: For program point L708(lines 708 872) no Hoare annotation was computed. [2020-10-28 12:51:22,004 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-28 12:51:22,004 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-28 12:51:22,004 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-28 12:51:22,004 INFO L274 CegarLoopResult]: For program point L313(lines 313 872) no Hoare annotation was computed. [2020-10-28 12:51:22,004 INFO L274 CegarLoopResult]: For program point L446(lines 446 872) no Hoare annotation was computed. [2020-10-28 12:51:22,004 INFO L274 CegarLoopResult]: For program point L380(lines 380 872) no Hoare annotation was computed. [2020-10-28 12:51:22,004 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,004 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,004 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,005 INFO L274 CegarLoopResult]: For program point L249(lines 249 872) no Hoare annotation was computed. [2020-10-28 12:51:22,005 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-28 12:51:22,005 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-28 12:51:22,005 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-28 12:51:22,005 INFO L274 CegarLoopResult]: For program point L844(lines 844 872) no Hoare annotation was computed. [2020-10-28 12:51:22,005 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,005 INFO L274 CegarLoopResult]: For program point L646(lines 646 872) no Hoare annotation was computed. [2020-10-28 12:51:22,005 INFO L274 CegarLoopResult]: For program point L514(lines 514 872) no Hoare annotation was computed. [2020-10-28 12:51:22,005 INFO L274 CegarLoopResult]: For program point L779(lines 779 872) no Hoare annotation was computed. [2020-10-28 12:51:22,005 INFO L274 CegarLoopResult]: For program point L581(lines 581 872) no Hoare annotation was computed. [2020-10-28 12:51:22,006 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,006 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,006 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,006 INFO L274 CegarLoopResult]: For program point L714(lines 714 872) no Hoare annotation was computed. [2020-10-28 12:51:22,006 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-28 12:51:22,006 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-28 12:51:22,006 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-28 12:51:22,006 INFO L274 CegarLoopResult]: For program point L451(lines 451 872) no Hoare annotation was computed. [2020-10-28 12:51:22,006 INFO L274 CegarLoopResult]: For program point L319(lines 319 872) no Hoare annotation was computed. [2020-10-28 12:51:22,006 INFO L274 CegarLoopResult]: For program point L386(lines 386 872) no Hoare annotation was computed. [2020-10-28 12:51:22,007 INFO L274 CegarLoopResult]: For program point L254(lines 254 872) no Hoare annotation was computed. [2020-10-28 12:51:22,007 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,007 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,007 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,007 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-28 12:51:22,007 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-28 12:51:22,007 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-28 12:51:22,007 INFO L274 CegarLoopResult]: For program point L850(lines 850 872) no Hoare annotation was computed. [2020-10-28 12:51:22,007 INFO L274 CegarLoopResult]: For program point L652(lines 652 872) no Hoare annotation was computed. [2020-10-28 12:51:22,007 INFO L274 CegarLoopResult]: For program point L520(lines 520 872) no Hoare annotation was computed. [2020-10-28 12:51:22,008 INFO L274 CegarLoopResult]: For program point L785(lines 785 872) no Hoare annotation was computed. [2020-10-28 12:51:22,008 INFO L274 CegarLoopResult]: For program point L587(lines 587 872) no Hoare annotation was computed. [2020-10-28 12:51:22,008 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,008 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,008 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,008 INFO L274 CegarLoopResult]: For program point L720(lines 720 872) no Hoare annotation was computed. [2020-10-28 12:51:22,008 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 874) the Hoare annotation is: (let ((.cse2 (= 5 |old(~a15~0)|)) (.cse7 (= ~a21~0 |old(~a21~0)|)) (.cse8 (= ~a12~0 |old(~a12~0)|))) (let ((.cse0 (not (= 10 |old(~a21~0)|))) (.cse6 (not (<= |old(~a21~0)| 9))) (.cse1 (and (= ~a24~0 |old(~a24~0)|) .cse7 .cse8 (= ~a15~0 |old(~a15~0)|))) (.cse3 (not (= |old(~a24~0)| 1))) (.cse4 (and (= 5 ~a15~0) .cse7 (= ~a24~0 1) .cse8)) (.cse5 (not .cse2))) (and (or .cse0 .cse1 .cse2) (or .cse1 (not (<= |old(~a21~0)| 7)) (not (<= (+ |old(~a12~0)| 49) 0))) (or .cse3 .cse4 (not (<= |old(~a12~0)| 75)) .cse5) (or .cse3 (not (<= |old(~a12~0)| 78)) .cse6 .cse4 .cse5) (or .cse0 .cse3 .cse4 .cse5) (or .cse6 .cse2 .cse1) (or .cse3 .cse4 (not (<= |old(~a21~0)| 8)) .cse5)))) [2020-10-28 12:51:22,008 INFO L274 CegarLoopResult]: For program point L456(lines 456 872) no Hoare annotation was computed. [2020-10-28 12:51:22,009 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-28 12:51:22,009 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-28 12:51:22,009 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-28 12:51:22,009 INFO L274 CegarLoopResult]: For program point L325(lines 325 872) no Hoare annotation was computed. [2020-10-28 12:51:22,009 INFO L274 CegarLoopResult]: For program point L392(lines 392 872) no Hoare annotation was computed. [2020-10-28 12:51:22,009 INFO L274 CegarLoopResult]: For program point L260(lines 260 872) no Hoare annotation was computed. [2020-10-28 12:51:22,009 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,009 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,009 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,009 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-28 12:51:22,010 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-28 12:51:22,010 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-28 12:51:22,010 INFO L274 CegarLoopResult]: For program point L856(lines 856 872) no Hoare annotation was computed. [2020-10-28 12:51:22,010 INFO L274 CegarLoopResult]: For program point L658(lines 658 872) no Hoare annotation was computed. [2020-10-28 12:51:22,010 INFO L274 CegarLoopResult]: For program point L526(lines 526 872) no Hoare annotation was computed. [2020-10-28 12:51:22,010 INFO L274 CegarLoopResult]: For program point L791(lines 791 872) no Hoare annotation was computed. [2020-10-28 12:51:22,010 INFO L274 CegarLoopResult]: For program point L593(lines 593 872) no Hoare annotation was computed. [2020-10-28 12:51:22,010 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,010 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,010 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,010 INFO L274 CegarLoopResult]: For program point L726(lines 726 872) no Hoare annotation was computed. [2020-10-28 12:51:22,011 INFO L274 CegarLoopResult]: For program point L462(lines 462 872) no Hoare annotation was computed. [2020-10-28 12:51:22,011 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-28 12:51:22,011 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-28 12:51:22,011 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-28 12:51:22,011 INFO L274 CegarLoopResult]: For program point L331(lines 331 872) no Hoare annotation was computed. [2020-10-28 12:51:22,011 INFO L274 CegarLoopResult]: For program point L398(lines 398 872) no Hoare annotation was computed. [2020-10-28 12:51:22,011 INFO L274 CegarLoopResult]: For program point L266(lines 266 872) no Hoare annotation was computed. [2020-10-28 12:51:22,011 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,011 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,011 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,011 INFO L274 CegarLoopResult]: For program point L861(lines 861 872) no Hoare annotation was computed. [2020-10-28 12:51:22,012 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-28 12:51:22,012 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-28 12:51:22,012 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-28 12:51:22,012 INFO L274 CegarLoopResult]: For program point L664(lines 664 872) no Hoare annotation was computed. [2020-10-28 12:51:22,012 INFO L274 CegarLoopResult]: For program point L532(lines 532 872) no Hoare annotation was computed. [2020-10-28 12:51:22,012 INFO L274 CegarLoopResult]: For program point L797(lines 797 872) no Hoare annotation was computed. [2020-10-28 12:51:22,012 INFO L274 CegarLoopResult]: For program point L599(lines 599 872) no Hoare annotation was computed. [2020-10-28 12:51:22,012 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,012 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,012 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,012 INFO L274 CegarLoopResult]: For program point L732(lines 732 872) no Hoare annotation was computed. [2020-10-28 12:51:22,013 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-28 12:51:22,013 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-28 12:51:22,013 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-28 12:51:22,013 INFO L274 CegarLoopResult]: For program point L469(lines 469 872) no Hoare annotation was computed. [2020-10-28 12:51:22,013 INFO L274 CegarLoopResult]: For program point L337(lines 337 872) no Hoare annotation was computed. [2020-10-28 12:51:22,013 INFO L274 CegarLoopResult]: For program point L271(lines 271 872) no Hoare annotation was computed. [2020-10-28 12:51:22,013 INFO L274 CegarLoopResult]: For program point L404(lines 404 872) no Hoare annotation was computed. [2020-10-28 12:51:22,013 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,013 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,013 INFO L274 CegarLoopResult]: For program point L867(lines 867 872) no Hoare annotation was computed. [2020-10-28 12:51:22,013 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-28 12:51:22,014 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-28 12:51:22,014 INFO L274 CegarLoopResult]: For program point L670(lines 670 872) no Hoare annotation was computed. [2020-10-28 12:51:22,014 INFO L274 CegarLoopResult]: For program point L538(lines 538 872) no Hoare annotation was computed. [2020-10-28 12:51:22,014 INFO L274 CegarLoopResult]: For program point L803(lines 803 872) no Hoare annotation was computed. [2020-10-28 12:51:22,014 INFO L274 CegarLoopResult]: For program point L737(lines 737 872) no Hoare annotation was computed. [2020-10-28 12:51:22,014 INFO L274 CegarLoopResult]: For program point L605(lines 605 872) no Hoare annotation was computed. [2020-10-28 12:51:22,014 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,014 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,014 INFO L274 CegarLoopResult]: For program point L474(lines 474 872) no Hoare annotation was computed. [2020-10-28 12:51:22,014 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-28 12:51:22,014 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-28 12:51:22,014 INFO L274 CegarLoopResult]: For program point L343(lines 343 872) no Hoare annotation was computed. [2020-10-28 12:51:22,015 INFO L274 CegarLoopResult]: For program point L277(lines 277 872) no Hoare annotation was computed. [2020-10-28 12:51:22,015 INFO L274 CegarLoopResult]: For program point L410(lines 410 872) no Hoare annotation was computed. [2020-10-28 12:51:22,015 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,015 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,015 INFO L274 CegarLoopResult]: For program point L543(lines 543 872) no Hoare annotation was computed. [2020-10-28 12:51:22,015 INFO L274 CegarLoopResult]: For program point L213(lines 213 872) no Hoare annotation was computed. [2020-10-28 12:51:22,015 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-28 12:51:22,015 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-28 12:51:22,015 INFO L274 CegarLoopResult]: For program point L676(lines 676 872) no Hoare annotation was computed. [2020-10-28 12:51:22,015 INFO L274 CegarLoopResult]: For program point L809(lines 809 872) no Hoare annotation was computed. [2020-10-28 12:51:22,016 INFO L274 CegarLoopResult]: For program point L743(lines 743 872) no Hoare annotation was computed. [2020-10-28 12:51:22,016 INFO L274 CegarLoopResult]: For program point L611(lines 611 872) no Hoare annotation was computed. [2020-10-28 12:51:22,016 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,016 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,016 INFO L274 CegarLoopResult]: For program point L480(lines 480 872) no Hoare annotation was computed. [2020-10-28 12:51:22,016 INFO L274 CegarLoopResult]: For program point L282(lines 282 872) no Hoare annotation was computed. [2020-10-28 12:51:22,016 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-28 12:51:22,016 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-28 12:51:22,016 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,016 INFO L274 CegarLoopResult]: For program point L679(lines 679 872) no Hoare annotation was computed. [2020-10-28 12:51:22,016 INFO L274 CegarLoopResult]: For program point L349(lines 349 872) no Hoare annotation was computed. [2020-10-28 12:51:22,017 INFO L274 CegarLoopResult]: For program point L416(lines 416 872) no Hoare annotation was computed. [2020-10-28 12:51:22,017 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,017 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,017 INFO L274 CegarLoopResult]: For program point L549(lines 549 872) no Hoare annotation was computed. [2020-10-28 12:51:22,017 INFO L274 CegarLoopResult]: For program point L219(lines 219 872) no Hoare annotation was computed. [2020-10-28 12:51:22,017 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-28 12:51:22,017 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-28 12:51:22,017 INFO L274 CegarLoopResult]: For program point L749(lines 749 872) no Hoare annotation was computed. [2020-10-28 12:51:22,017 INFO L274 CegarLoopResult]: For program point L617(lines 617 872) no Hoare annotation was computed. [2020-10-28 12:51:22,017 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,017 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,018 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-28 12:51:22,018 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,018 INFO L274 CegarLoopResult]: For program point L816(lines 816 872) no Hoare annotation was computed. [2020-10-28 12:51:22,018 INFO L274 CegarLoopResult]: For program point L486(lines 486 872) no Hoare annotation was computed. [2020-10-28 12:51:22,018 INFO L274 CegarLoopResult]: For program point L288(lines 288 872) no Hoare annotation was computed. [2020-10-28 12:51:22,018 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-28 12:51:22,018 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-28 12:51:22,018 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-28 12:51:22,018 INFO L274 CegarLoopResult]: For program point L685(lines 685 872) no Hoare annotation was computed. [2020-10-28 12:51:22,018 INFO L274 CegarLoopResult]: For program point L355(lines 355 872) no Hoare annotation was computed. [2020-10-28 12:51:22,018 INFO L274 CegarLoopResult]: For program point L554(lines 554 872) no Hoare annotation was computed. [2020-10-28 12:51:22,019 INFO L274 CegarLoopResult]: For program point L422(lines 422 872) no Hoare annotation was computed. [2020-10-28 12:51:22,019 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,019 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,019 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,019 INFO L274 CegarLoopResult]: For program point L225(lines 225 872) no Hoare annotation was computed. [2020-10-28 12:51:22,019 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-28 12:51:22,019 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-28 12:51:22,019 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-28 12:51:22,019 INFO L274 CegarLoopResult]: For program point L754(lines 754 872) no Hoare annotation was computed. [2020-10-28 12:51:22,019 INFO L274 CegarLoopResult]: For program point L821(lines 821 872) no Hoare annotation was computed. [2020-10-28 12:51:22,020 INFO L274 CegarLoopResult]: For program point L623(lines 623 872) no Hoare annotation was computed. [2020-10-28 12:51:22,020 INFO L274 CegarLoopResult]: For program point L557(lines 557 872) no Hoare annotation was computed. [2020-10-28 12:51:22,020 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,020 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,020 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,020 INFO L274 CegarLoopResult]: For program point L690(lines 690 872) no Hoare annotation was computed. [2020-10-28 12:51:22,020 INFO L274 CegarLoopResult]: For program point L492(lines 492 872) no Hoare annotation was computed. [2020-10-28 12:51:22,020 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-28 12:51:22,020 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-28 12:51:22,020 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-28 12:51:22,021 INFO L274 CegarLoopResult]: For program point L361(lines 361 872) no Hoare annotation was computed. [2020-10-28 12:51:22,021 INFO L274 CegarLoopResult]: For program point L295(lines 295 872) no Hoare annotation was computed. [2020-10-28 12:51:22,021 INFO L274 CegarLoopResult]: For program point L428(lines 428 872) no Hoare annotation was computed. [2020-10-28 12:51:22,021 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,021 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,021 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,021 INFO L274 CegarLoopResult]: For program point L231(lines 231 872) no Hoare annotation was computed. [2020-10-28 12:51:22,021 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-28 12:51:22,021 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-28 12:51:22,021 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-28 12:51:22,021 INFO L274 CegarLoopResult]: For program point L760(lines 760 872) no Hoare annotation was computed. [2020-10-28 12:51:22,021 INFO L274 CegarLoopResult]: For program point L628(lines 628 872) no Hoare annotation was computed. [2020-10-28 12:51:22,022 INFO L274 CegarLoopResult]: For program point L827(lines 827 872) no Hoare annotation was computed. [2020-10-28 12:51:22,022 INFO L274 CegarLoopResult]: For program point L563(lines 563 872) no Hoare annotation was computed. [2020-10-28 12:51:22,022 INFO L274 CegarLoopResult]: For program point L497(lines 497 872) no Hoare annotation was computed. [2020-10-28 12:51:22,022 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,022 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,022 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:51:22,022 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-28 12:51:22,022 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= (+ ~a12~0 49) 0) (= ~a15~0 8) (= 7 ~a21~0)) [2020-10-28 12:51:22,022 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-28 12:51:22,022 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-28 12:51:22,023 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 876 892) the Hoare annotation is: (or (not (= 7 |old(~a21~0)|)) (and (= ~a24~0 |old(~a24~0)|) (= ~a15~0 8) (= ~a12~0 |old(~a12~0)|) (= 7 ~a21~0)) (not (= 8 |old(~a15~0)|)) (not (<= (+ |old(~a12~0)| 49) 0))) [2020-10-28 12:51:22,023 INFO L270 CegarLoopResult]: At program point L890(line 890) the Hoare annotation is: (let ((.cse2 (= 5 ~a15~0))) (let ((.cse1 (<= ~a21~0 9)) (.cse3 (<= |old(~a12~0)| 11)) (.cse4 (= ~a24~0 1)) (.cse0 (not .cse2)) (.cse5 (= ~a21~0 10))) (or (and .cse0 .cse1) (not (= 7 |old(~a21~0)|)) (not (= 8 |old(~a15~0)|)) (and (<= ~a21~0 7) (<= (+ ~a12~0 49) 0)) (and .cse2 .cse3 .cse4 .cse1 (<= ~a12~0 78)) (and .cse2 (<= ~a12~0 75) .cse4) (and .cse5 .cse4) (and .cse2 .cse3 .cse4 (<= ~a21~0 8)) (and .cse0 .cse5) (not (<= (+ |old(~a12~0)| 49) 0))))) [2020-10-28 12:51:22,023 INFO L274 CegarLoopResult]: For program point L890-1(line 890) no Hoare annotation was computed. [2020-10-28 12:51:22,023 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 876 892) no Hoare annotation was computed. [2020-10-28 12:51:22,023 INFO L274 CegarLoopResult]: For program point L887(line 887) no Hoare annotation was computed. [2020-10-28 12:51:22,023 INFO L270 CegarLoopResult]: At program point L882-2(lines 882 891) the Hoare annotation is: (let ((.cse2 (= 5 ~a15~0))) (let ((.cse1 (<= ~a21~0 9)) (.cse3 (<= |old(~a12~0)| 11)) (.cse4 (= ~a24~0 1)) (.cse0 (not .cse2)) (.cse5 (= ~a21~0 10))) (or (and .cse0 .cse1) (not (= 7 |old(~a21~0)|)) (not (= 8 |old(~a15~0)|)) (and (<= ~a21~0 7) (<= (+ ~a12~0 49) 0)) (and .cse2 .cse3 .cse4 .cse1 (<= ~a12~0 78)) (and .cse2 (<= ~a12~0 75) .cse4) (and .cse5 .cse4) (and .cse2 .cse3 .cse4 (<= ~a21~0 8)) (and .cse0 .cse5) (not (<= (+ |old(~a12~0)| 49) 0))))) [2020-10-28 12:51:22,023 INFO L274 CegarLoopResult]: For program point L882-3(lines 876 892) no Hoare annotation was computed. [2020-10-28 12:51:22,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 12:51:22 BoogieIcfgContainer [2020-10-28 12:51:22,055 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 12:51:22,057 INFO L168 Benchmark]: Toolchain (without parser) took 132769.40 ms. Allocated memory was 151.0 MB in the beginning and 1.9 GB in the end (delta: 1.8 GB). Free memory was 124.6 MB in the beginning and 1.7 GB in the end (delta: -1.5 GB). Peak memory consumption was 1.2 GB. Max. memory is 8.0 GB. [2020-10-28 12:51:22,058 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory is still 123.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 12:51:22,059 INFO L168 Benchmark]: CACSL2BoogieTranslator took 770.76 ms. Allocated memory is still 151.0 MB. Free memory was 123.9 MB in the beginning and 124.9 MB in the end (delta: -987.0 kB). Peak memory consumption was 29.0 MB. Max. memory is 8.0 GB. [2020-10-28 12:51:22,059 INFO L168 Benchmark]: Boogie Preprocessor took 176.83 ms. Allocated memory is still 151.0 MB. Free memory was 124.9 MB in the beginning and 119.6 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-28 12:51:22,060 INFO L168 Benchmark]: RCFGBuilder took 1658.37 ms. Allocated memory is still 151.0 MB. Free memory was 119.6 MB in the beginning and 76.8 MB in the end (delta: 42.8 MB). Peak memory consumption was 78.5 MB. Max. memory is 8.0 GB. [2020-10-28 12:51:22,060 INFO L168 Benchmark]: TraceAbstraction took 130146.86 ms. Allocated memory was 151.0 MB in the beginning and 1.9 GB in the end (delta: 1.8 GB). Free memory was 76.8 MB in the beginning and 1.7 GB in the end (delta: -1.6 GB). Peak memory consumption was 1.2 GB. Max. memory is 8.0 GB. [2020-10-28 12:51:22,064 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory is still 123.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 770.76 ms. Allocated memory is still 151.0 MB. Free memory was 123.9 MB in the beginning and 124.9 MB in the end (delta: -987.0 kB). Peak memory consumption was 29.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 176.83 ms. Allocated memory is still 151.0 MB. Free memory was 124.9 MB in the beginning and 119.6 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1658.37 ms. Allocated memory is still 151.0 MB. Free memory was 119.6 MB in the beginning and 76.8 MB in the end (delta: 42.8 MB). Peak memory consumption was 78.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 130146.86 ms. Allocated memory was 151.0 MB in the beginning and 1.9 GB in the end (delta: 1.8 GB). Free memory was 76.8 MB in the beginning and 1.7 GB in the end (delta: -1.6 GB). Peak memory consumption was 1.2 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 882]: Loop Invariant Derived loop invariant: (((((((((!(5 == a15) && a21 <= 9) || !(7 == \old(a21))) || !(8 == \old(a15))) || (a21 <= 7 && a12 + 49 <= 0)) || ((((5 == a15 && \old(a12) <= 11) && a24 == 1) && a21 <= 9) && a12 <= 78)) || ((5 == a15 && a12 <= 75) && a24 == 1)) || (a21 == 10 && a24 == 1)) || (((5 == a15 && \old(a12) <= 11) && a24 == 1) && a21 <= 8)) || (!(5 == a15) && a21 == 10)) || !(\old(a12) + 49 <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 258 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 125.9s, OverallIterations: 15, TraceHistogramMax: 10, AutomataDifference: 38.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 411 SDtfs, 10371 SDslu, 573 SDs, 0 SdLazy, 15400 SolverSat, 1670 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 26.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 343 GetRequests, 208 SyntacticMatches, 4 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6867occurred in iteration=14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 15 MinimizatonAttempts, 1788 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 553 PreInvPairs, 643 NumberOfFragments, 530 HoareAnnotationTreeSize, 553 FomulaSimplifications, 72188 FormulaSimplificationTreeSizeReduction, 1.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 6856 FormulaSimplificationTreeSizeReductionInter, 2.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 78.3s InterpolantComputationTime, 9092 NumberOfCodeBlocks, 9092 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 9077 ConstructedInterpolants, 0 QuantifiedInterpolants, 11349599 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 2 PerfectInterpolantSequences, 18298/19809 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...