/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label00.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 20:36:52,005 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 20:36:52,011 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 20:36:52,071 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 20:36:52,072 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 20:36:52,078 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 20:36:52,081 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 20:36:52,086 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 20:36:52,090 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 20:36:52,096 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 20:36:52,098 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 20:36:52,099 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 20:36:52,100 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 20:36:52,103 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 20:36:52,106 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 20:36:52,108 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 20:36:52,109 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 20:36:52,112 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 20:36:52,121 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 20:36:52,129 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 20:36:52,131 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 20:36:52,133 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 20:36:52,135 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 20:36:52,138 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 20:36:52,167 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 20:36:52,168 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 20:36:52,168 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 20:36:52,170 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 20:36:52,171 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 20:36:52,172 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 20:36:52,172 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 20:36:52,173 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 20:36:52,175 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 20:36:52,176 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 20:36:52,177 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 20:36:52,178 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 20:36:52,178 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 20:36:52,178 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 20:36:52,179 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 20:36:52,180 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 20:36:52,180 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 20:36:52,188 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-26 20:36:52,241 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 20:36:52,241 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 20:36:52,246 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 20:36:52,246 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 20:36:52,246 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 20:36:52,246 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 20:36:52,247 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 20:36:52,247 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 20:36:52,247 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 20:36:52,247 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 20:36:52,248 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 20:36:52,249 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 20:36:52,249 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 20:36:52,249 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 20:36:52,249 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 20:36:52,249 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 20:36:52,250 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 20:36:52,250 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 20:36:52,250 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 20:36:52,250 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 20:36:52,250 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 20:36:52,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 20:36:52,251 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 20:36:52,251 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 20:36:52,251 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 20:36:52,251 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 20:36:52,252 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 20:36:52,252 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 20:36:52,252 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 20:36:52,252 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 20:36:52,663 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 20:36:52,690 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 20:36:52,693 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 20:36:52,695 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 20:36:52,695 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 20:36:52,698 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label00.c [2020-10-26 20:36:52,799 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/68a2e2a16/048e834ef30b4ba1bc15a9309088f044/FLAGd21d2a18e [2020-10-26 20:36:53,584 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 20:36:53,585 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label00.c [2020-10-26 20:36:53,613 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/68a2e2a16/048e834ef30b4ba1bc15a9309088f044/FLAGd21d2a18e [2020-10-26 20:36:53,822 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/68a2e2a16/048e834ef30b4ba1bc15a9309088f044 [2020-10-26 20:36:53,825 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 20:36:53,833 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 20:36:53,840 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 20:36:53,840 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 20:36:53,846 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 20:36:53,847 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:36:53" (1/1) ... [2020-10-26 20:36:53,852 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fe4e6e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:53, skipping insertion in model container [2020-10-26 20:36:53,853 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:36:53" (1/1) ... [2020-10-26 20:36:53,863 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 20:36:53,934 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 20:36:54,373 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:36:54,398 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 20:36:54,500 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:36:54,525 INFO L208 MainTranslator]: Completed translation [2020-10-26 20:36:54,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:54 WrapperNode [2020-10-26 20:36:54,526 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 20:36:54,528 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 20:36:54,528 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 20:36:54,528 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 20:36:54,547 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:54" (1/1) ... [2020-10-26 20:36:54,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:54" (1/1) ... [2020-10-26 20:36:54,572 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:54" (1/1) ... [2020-10-26 20:36:54,573 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:54" (1/1) ... [2020-10-26 20:36:54,653 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:54" (1/1) ... [2020-10-26 20:36:54,680 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:54" (1/1) ... [2020-10-26 20:36:54,694 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:54" (1/1) ... [2020-10-26 20:36:54,703 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 20:36:54,706 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 20:36:54,706 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 20:36:54,706 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 20:36:54,708 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:54" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 20:36:54,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 20:36:54,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 20:36:54,796 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 20:36:54,797 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 20:36:54,797 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 20:36:54,798 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 20:36:54,799 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 20:36:54,799 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 20:36:54,799 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 20:36:54,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 20:36:54,800 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 20:36:54,801 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 20:36:54,801 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 20:36:54,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 20:36:54,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 20:36:54,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 20:36:54,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 20:36:54,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 20:36:54,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 20:36:56,363 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 20:36:56,363 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 20:36:56,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:36:56 BoogieIcfgContainer [2020-10-26 20:36:56,367 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 20:36:56,369 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 20:36:56,369 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 20:36:56,374 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 20:36:56,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 08:36:53" (1/3) ... [2020-10-26 20:36:56,375 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28a92159 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:36:56, skipping insertion in model container [2020-10-26 20:36:56,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:54" (2/3) ... [2020-10-26 20:36:56,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28a92159 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:36:56, skipping insertion in model container [2020-10-26 20:36:56,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:36:56" (3/3) ... [2020-10-26 20:36:56,378 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label00.c [2020-10-26 20:36:56,391 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 20:36:56,396 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 20:36:56,410 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 20:36:56,441 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 20:36:56,441 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 20:36:56,441 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 20:36:56,442 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 20:36:56,442 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 20:36:56,442 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 20:36:56,442 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 20:36:56,442 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 20:36:56,468 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states. [2020-10-26 20:36:56,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-10-26 20:36:56,482 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:36:56,483 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:36:56,484 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:36:56,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:36:56,491 INFO L82 PathProgramCache]: Analyzing trace with hash 1366350701, now seen corresponding path program 1 times [2020-10-26 20:36:56,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:36:56,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [757443349] [2020-10-26 20:36:56,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:36:56,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:56,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:57,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:58,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:58,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-26 20:36:58,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:36:58,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1651 [2020-10-26 20:36:58,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:58,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:36:58,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:36:58,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-26 20:36:58,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 20:36:58,721 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-26 20:36:58,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:36:58,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:58,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:58,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:58,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:36:58,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:58,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-26 20:36:58,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:58,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:36:58,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:58,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:36:58,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:58,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:36:58,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [757443349] [2020-10-26 20:36:58,829 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:36:58,829 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 20:36:58,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773330912] [2020-10-26 20:36:58,839 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 20:36:58,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:36:58,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 20:36:58,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 20:36:58,866 INFO L87 Difference]: Start difference. First operand 240 states. Second operand 4 states. [2020-10-26 20:36:59,078 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-26 20:37:01,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:01,724 INFO L93 Difference]: Finished difference Result 632 states and 1079 transitions. [2020-10-26 20:37:01,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 20:37:01,732 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 122 [2020-10-26 20:37:01,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:01,760 INFO L225 Difference]: With dead ends: 632 [2020-10-26 20:37:01,761 INFO L226 Difference]: Without dead ends: 328 [2020-10-26 20:37:01,770 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-26 20:37:01,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2020-10-26 20:37:01,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 320. [2020-10-26 20:37:01,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 320 states. [2020-10-26 20:37:01,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 466 transitions. [2020-10-26 20:37:01,850 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 466 transitions. Word has length 122 [2020-10-26 20:37:01,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:01,851 INFO L481 AbstractCegarLoop]: Abstraction has 320 states and 466 transitions. [2020-10-26 20:37:01,851 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 20:37:01,851 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 466 transitions. [2020-10-26 20:37:01,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-10-26 20:37:01,857 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:37:01,857 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:37:01,858 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 20:37:01,858 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:37:01,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:37:01,859 INFO L82 PathProgramCache]: Analyzing trace with hash -277729602, now seen corresponding path program 1 times [2020-10-26 20:37:01,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:37:01,859 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1632909158] [2020-10-26 20:37:01,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:37:01,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:01,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:01,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:02,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:03,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:03,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-10-26 20:37:03,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:37:03,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1351 [2020-10-26 20:37:03,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:03,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:37:03,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:37:03,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-26 20:37:03,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:03,464 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-26 20:37:03,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:03,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:03,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:03,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:03,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:03,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:03,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-26 20:37:03,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:03,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:03,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:03,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:37:03,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:37:03,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:03,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:03,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:03,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:03,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-26 20:37:03,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:03,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-26 20:37:03,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:03,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:03,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:03,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-26 20:37:03,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:37:03,707 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:37:03,708 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1632909158] [2020-10-26 20:37:03,708 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:37:03,708 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-26 20:37:03,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896346679] [2020-10-26 20:37:03,713 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:37:03,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:03,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:37:03,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:37:03,716 INFO L87 Difference]: Start difference. First operand 320 states and 466 transitions. Second operand 7 states. [2020-10-26 20:37:03,914 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-26 20:37:04,569 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-26 20:37:06,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:06,746 INFO L93 Difference]: Finished difference Result 953 states and 1409 transitions. [2020-10-26 20:37:06,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:37:06,748 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 144 [2020-10-26 20:37:06,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:06,754 INFO L225 Difference]: With dead ends: 953 [2020-10-26 20:37:06,754 INFO L226 Difference]: Without dead ends: 639 [2020-10-26 20:37:06,756 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:37:06,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2020-10-26 20:37:06,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 625. [2020-10-26 20:37:06,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 625 states. [2020-10-26 20:37:06,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 809 transitions. [2020-10-26 20:37:06,814 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 809 transitions. Word has length 144 [2020-10-26 20:37:06,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:06,814 INFO L481 AbstractCegarLoop]: Abstraction has 625 states and 809 transitions. [2020-10-26 20:37:06,815 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:37:06,815 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 809 transitions. [2020-10-26 20:37:06,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-26 20:37:06,822 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:37:06,822 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:37:06,822 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 20:37:06,822 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:37:06,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:37:06,823 INFO L82 PathProgramCache]: Analyzing trace with hash 507035766, now seen corresponding path program 1 times [2020-10-26 20:37:06,823 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:37:06,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1956726526] [2020-10-26 20:37:06,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:37:06,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:06,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:06,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:07,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:08,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:08,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-26 20:37:08,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:37:08,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1297 [2020-10-26 20:37:08,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:08,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:37:08,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:37:08,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-26 20:37:08,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:08,345 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-26 20:37:08,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:08,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:08,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:08,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:08,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:08,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:08,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-26 20:37:08,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:08,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:08,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:08,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:37:08,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:08,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:08,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:08,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:08,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:08,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-26 20:37:08,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:08,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-26 20:37:08,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:08,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:08,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:08,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-26 20:37:08,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:08,530 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:37:08,531 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1956726526] [2020-10-26 20:37:08,531 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:37:08,531 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-26 20:37:08,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314526170] [2020-10-26 20:37:08,533 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:37:08,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:08,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:37:08,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:37:08,537 INFO L87 Difference]: Start difference. First operand 625 states and 809 transitions. Second operand 7 states. [2020-10-26 20:37:08,714 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-26 20:37:09,521 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-26 20:37:11,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:11,652 INFO L93 Difference]: Finished difference Result 1734 states and 2367 transitions. [2020-10-26 20:37:11,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:37:11,654 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 148 [2020-10-26 20:37:11,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:11,668 INFO L225 Difference]: With dead ends: 1734 [2020-10-26 20:37:11,668 INFO L226 Difference]: Without dead ends: 1115 [2020-10-26 20:37:11,672 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:37:11,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2020-10-26 20:37:11,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 1091. [2020-10-26 20:37:11,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1091 states. [2020-10-26 20:37:11,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1091 states to 1091 states and 1393 transitions. [2020-10-26 20:37:11,771 INFO L78 Accepts]: Start accepts. Automaton has 1091 states and 1393 transitions. Word has length 148 [2020-10-26 20:37:11,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:11,772 INFO L481 AbstractCegarLoop]: Abstraction has 1091 states and 1393 transitions. [2020-10-26 20:37:11,773 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:37:11,774 INFO L276 IsEmpty]: Start isEmpty. Operand 1091 states and 1393 transitions. [2020-10-26 20:37:11,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-26 20:37:11,792 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:37:11,792 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:37:11,793 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 20:37:11,793 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:37:11,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:37:11,793 INFO L82 PathProgramCache]: Analyzing trace with hash -1572325155, now seen corresponding path program 1 times [2020-10-26 20:37:11,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:37:11,794 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [407449892] [2020-10-26 20:37:11,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:37:11,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:11,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:11,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:12,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:13,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:14,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:14,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-26 20:37:14,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:37:14,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2443 [2020-10-26 20:37:14,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:14,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:37:14,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:37:14,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-26 20:37:14,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:14,445 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-26 20:37:14,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:14,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:14,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:14,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:14,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:14,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:14,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-26 20:37:14,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:14,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:14,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:14,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:37:14,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:14,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:14,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:14,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:14,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:14,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-26 20:37:14,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:14,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:37:14,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:14,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:14,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:14,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:37:14,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:14,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-26 20:37:14,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:14,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:14,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:14,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-26 20:37:14,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:14,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-26 20:37:14,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:14,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:14,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:14,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-26 20:37:14,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:14,715 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 26 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-26 20:37:14,715 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [407449892] [2020-10-26 20:37:14,716 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:37:14,716 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:37:14,716 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367575832] [2020-10-26 20:37:14,717 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:37:14,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:14,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:37:14,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:37:14,719 INFO L87 Difference]: Start difference. First operand 1091 states and 1393 transitions. Second operand 8 states. [2020-10-26 20:37:14,978 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-26 20:37:15,903 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-26 20:37:17,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:17,668 INFO L93 Difference]: Finished difference Result 3164 states and 4271 transitions. [2020-10-26 20:37:17,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:37:17,669 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153 [2020-10-26 20:37:17,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:17,687 INFO L225 Difference]: With dead ends: 3164 [2020-10-26 20:37:17,687 INFO L226 Difference]: Without dead ends: 2079 [2020-10-26 20:37:17,691 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2020-10-26 20:37:17,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2079 states. [2020-10-26 20:37:17,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2079 to 2032. [2020-10-26 20:37:17,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2032 states. [2020-10-26 20:37:17,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2032 states to 2032 states and 2627 transitions. [2020-10-26 20:37:17,814 INFO L78 Accepts]: Start accepts. Automaton has 2032 states and 2627 transitions. Word has length 153 [2020-10-26 20:37:17,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:17,814 INFO L481 AbstractCegarLoop]: Abstraction has 2032 states and 2627 transitions. [2020-10-26 20:37:17,814 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:37:17,814 INFO L276 IsEmpty]: Start isEmpty. Operand 2032 states and 2627 transitions. [2020-10-26 20:37:17,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-26 20:37:17,822 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:37:17,822 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:37:17,822 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 20:37:17,822 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:37:17,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:37:17,823 INFO L82 PathProgramCache]: Analyzing trace with hash -692000235, now seen corresponding path program 1 times [2020-10-26 20:37:17,823 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:37:17,823 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1842375708] [2020-10-26 20:37:17,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:37:17,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:17,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:18,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:18,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:18,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-26 20:37:18,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:37:18,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 628 [2020-10-26 20:37:18,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:18,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:18,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-26 20:37:18,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-26 20:37:18,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:18,885 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-26 20:37:18,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:18,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:18,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:18,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:18,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:18,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:18,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:37:18,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:18,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:18,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:18,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:18,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:18,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:18,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:18,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:18,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:18,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:37:18,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:18,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:37:18,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:18,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:18,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:18,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:18,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:18,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 20:37:18,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:18,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:19,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:19,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-26 20:37:19,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:19,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-26 20:37:19,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:19,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:19,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:19,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-26 20:37:19,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:19,204 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-26 20:37:19,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1842375708] [2020-10-26 20:37:19,205 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:37:19,205 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:37:19,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306860732] [2020-10-26 20:37:19,206 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:37:19,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:19,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:37:19,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:37:19,207 INFO L87 Difference]: Start difference. First operand 2032 states and 2627 transitions. Second operand 7 states. [2020-10-26 20:37:19,746 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-26 20:37:21,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:21,563 INFO L93 Difference]: Finished difference Result 4155 states and 5446 transitions. [2020-10-26 20:37:21,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 20:37:21,569 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 157 [2020-10-26 20:37:21,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:21,585 INFO L225 Difference]: With dead ends: 4155 [2020-10-26 20:37:21,585 INFO L226 Difference]: Without dead ends: 2040 [2020-10-26 20:37:21,591 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:37:21,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2040 states. [2020-10-26 20:37:21,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2040 to 2030. [2020-10-26 20:37:21,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2030 states. [2020-10-26 20:37:21,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2030 states to 2030 states and 2618 transitions. [2020-10-26 20:37:21,678 INFO L78 Accepts]: Start accepts. Automaton has 2030 states and 2618 transitions. Word has length 157 [2020-10-26 20:37:21,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:21,678 INFO L481 AbstractCegarLoop]: Abstraction has 2030 states and 2618 transitions. [2020-10-26 20:37:21,678 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:37:21,679 INFO L276 IsEmpty]: Start isEmpty. Operand 2030 states and 2618 transitions. [2020-10-26 20:37:21,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-10-26 20:37:21,685 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:37:21,685 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:37:21,686 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 20:37:21,686 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:37:21,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:37:21,687 INFO L82 PathProgramCache]: Analyzing trace with hash 337660722, now seen corresponding path program 1 times [2020-10-26 20:37:21,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:37:21,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1458061393] [2020-10-26 20:37:21,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:37:21,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:21,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:21,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:22,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:22,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:22,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-26 20:37:22,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:37:22,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1135 [2020-10-26 20:37:22,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:22,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:22,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-26 20:37:22,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-26 20:37:22,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:23,023 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-26 20:37:23,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:23,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:23,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:23,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:23,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:23,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:23,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:37:23,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:23,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:23,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:23,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:23,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:23,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:23,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:23,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:23,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:23,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-26 20:37:23,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:23,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:37:23,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:23,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:23,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:23,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-26 20:37:23,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:37:23,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-26 20:37:23,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:23,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:23,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:23,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-26 20:37:23,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:23,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-26 20:37:23,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:23,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:23,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:23,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-26 20:37:23,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:23,268 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 44 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 20:37:23,269 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1458061393] [2020-10-26 20:37:23,270 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:37:23,271 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:37:23,272 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833155420] [2020-10-26 20:37:23,273 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:37:23,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:23,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:37:23,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:37:23,274 INFO L87 Difference]: Start difference. First operand 2030 states and 2618 transitions. Second operand 7 states. [2020-10-26 20:37:23,447 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-26 20:37:24,892 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-26 20:37:26,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:26,099 INFO L93 Difference]: Finished difference Result 4834 states and 6425 transitions. [2020-10-26 20:37:26,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 20:37:26,100 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 166 [2020-10-26 20:37:26,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:26,118 INFO L225 Difference]: With dead ends: 4834 [2020-10-26 20:37:26,118 INFO L226 Difference]: Without dead ends: 2810 [2020-10-26 20:37:26,124 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:37:26,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2810 states. [2020-10-26 20:37:26,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2810 to 2786. [2020-10-26 20:37:26,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2786 states. [2020-10-26 20:37:26,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2786 states to 2786 states and 3631 transitions. [2020-10-26 20:37:26,247 INFO L78 Accepts]: Start accepts. Automaton has 2786 states and 3631 transitions. Word has length 166 [2020-10-26 20:37:26,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:26,247 INFO L481 AbstractCegarLoop]: Abstraction has 2786 states and 3631 transitions. [2020-10-26 20:37:26,247 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:37:26,247 INFO L276 IsEmpty]: Start isEmpty. Operand 2786 states and 3631 transitions. [2020-10-26 20:37:26,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-10-26 20:37:26,255 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:37:26,255 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:37:26,255 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 20:37:26,255 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:37:26,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:37:26,256 INFO L82 PathProgramCache]: Analyzing trace with hash -1550625542, now seen corresponding path program 1 times [2020-10-26 20:37:26,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:37:26,256 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [893549845] [2020-10-26 20:37:26,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:37:26,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:26,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:26,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:27,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:27,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:27,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-10-26 20:37:27,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:37:27,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1293 [2020-10-26 20:37:27,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:27,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:27,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-26 20:37:27,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-26 20:37:27,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:27,775 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-26 20:37:27,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:27,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:27,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:27,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:27,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:27,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:27,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:37:27,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:27,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:27,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:27,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:27,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:27,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:27,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:27,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:27,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:27,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:37:27,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:27,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:37:27,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:27,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:27,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:27,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-26 20:37:27,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:27,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 20:37:27,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:27,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:27,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:27,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-26 20:37:27,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:27,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-26 20:37:27,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:27,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:27,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:27,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-26 20:37:27,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:28,011 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 52 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 20:37:28,011 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [893549845] [2020-10-26 20:37:28,011 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:37:28,013 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:37:28,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304194778] [2020-10-26 20:37:28,014 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:37:28,014 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:28,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:37:28,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:37:28,015 INFO L87 Difference]: Start difference. First operand 2786 states and 3631 transitions. Second operand 7 states. [2020-10-26 20:37:28,370 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-26 20:37:28,885 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-26 20:37:31,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:31,057 INFO L93 Difference]: Finished difference Result 6328 states and 8345 transitions. [2020-10-26 20:37:31,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 20:37:31,058 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 170 [2020-10-26 20:37:31,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:31,079 INFO L225 Difference]: With dead ends: 6328 [2020-10-26 20:37:31,079 INFO L226 Difference]: Without dead ends: 3395 [2020-10-26 20:37:31,089 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-10-26 20:37:31,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3395 states. [2020-10-26 20:37:31,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3395 to 3224. [2020-10-26 20:37:31,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3224 states. [2020-10-26 20:37:31,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3224 states to 3224 states and 4121 transitions. [2020-10-26 20:37:31,202 INFO L78 Accepts]: Start accepts. Automaton has 3224 states and 4121 transitions. Word has length 170 [2020-10-26 20:37:31,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:31,203 INFO L481 AbstractCegarLoop]: Abstraction has 3224 states and 4121 transitions. [2020-10-26 20:37:31,203 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:37:31,203 INFO L276 IsEmpty]: Start isEmpty. Operand 3224 states and 4121 transitions. [2020-10-26 20:37:31,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-10-26 20:37:31,213 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:37:31,213 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:37:31,213 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 20:37:31,213 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:37:31,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:37:31,214 INFO L82 PathProgramCache]: Analyzing trace with hash 1539193242, now seen corresponding path program 1 times [2020-10-26 20:37:31,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:37:31,219 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1995230613] [2020-10-26 20:37:31,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:37:31,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:31,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:31,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:31,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:32,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:33,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:35,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:36,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:36,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-10-26 20:37:36,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-26 20:37:36,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4953 [2020-10-26 20:37:36,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:36,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:36,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-26 20:37:36,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-26 20:37:36,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:36,392 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-26 20:37:36,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:36,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:36,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:36,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:36,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:36,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:36,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:37:36,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:36,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:36,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:36,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:36,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:36,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:36,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:36,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:36,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:36,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:37:36,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:36,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:37:36,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:36,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:36,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:36,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-26 20:37:36,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:36,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 20:37:36,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:36,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:36,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:36,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-26 20:37:36,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:36,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-26 20:37:36,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:36,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:36,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:36,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-26 20:37:36,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:36,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-26 20:37:36,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:36,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:36,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:36,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-26 20:37:36,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:36,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-26 20:37:36,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:36,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:36,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-26 20:37:36,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:36,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:36,689 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 84 proven. 29 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-26 20:37:36,690 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1995230613] [2020-10-26 20:37:36,690 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:37:36,690 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:37:36,690 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965834076] [2020-10-26 20:37:36,691 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:37:36,691 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:36,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:37:36,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:37:36,692 INFO L87 Difference]: Start difference. First operand 3224 states and 4121 transitions. Second operand 7 states. [2020-10-26 20:37:36,858 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-26 20:37:37,996 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-26 20:37:39,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:39,209 INFO L93 Difference]: Finished difference Result 7154 states and 9248 transitions. [2020-10-26 20:37:39,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 20:37:39,213 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 201 [2020-10-26 20:37:39,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:39,213 INFO L225 Difference]: With dead ends: 7154 [2020-10-26 20:37:39,213 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 20:37:39,229 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-10-26 20:37:39,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 20:37:39,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 20:37:39,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 20:37:39,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 20:37:39,230 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 201 [2020-10-26 20:37:39,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:39,230 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 20:37:39,230 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:37:39,230 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 20:37:39,230 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 20:37:39,230 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 20:37:39,233 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 20:37:39,911 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 126 [2020-10-26 20:37:40,120 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 126 [2020-10-26 20:37:40,415 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 29 [2020-10-26 20:37:41,727 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 165 DAG size of output: 47 [2020-10-26 20:37:41,880 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-26 20:37:42,192 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 35 [2020-10-26 20:37:42,490 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 35 [2020-10-26 20:37:42,763 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 28 [2020-10-26 20:37:42,769 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-26 20:37:42,769 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-26 20:37:42,769 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-26 20:37:42,769 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-26 20:37:42,770 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:37:42,770 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a28~0 |old(~a28~0)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= ~a21~0 |old(~a21~0)|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~f~0 |old(~f~0)|) (= ~a19~0 |old(~a19~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a11~0 |old(~a11~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~y~0 |old(~y~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a17~0 |old(~a17~0)|) (= ~c~0 |old(~c~0)|) (= ~a25~0 |old(~a25~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~z~0 |old(~z~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a~0 |old(~a~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~v~0 |old(~v~0)|)) [2020-10-26 20:37:42,770 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:37:42,770 INFO L274 CegarLoopResult]: For program point L597(line 597) no Hoare annotation was computed. [2020-10-26 20:37:42,770 INFO L274 CegarLoopResult]: For program point L564(line 564) no Hoare annotation was computed. [2020-10-26 20:37:42,770 INFO L274 CegarLoopResult]: For program point L531(line 531) no Hoare annotation was computed. [2020-10-26 20:37:42,771 INFO L274 CegarLoopResult]: For program point L498(line 498) no Hoare annotation was computed. [2020-10-26 20:37:42,771 INFO L274 CegarLoopResult]: For program point L465(line 465) no Hoare annotation was computed. [2020-10-26 20:37:42,771 INFO L274 CegarLoopResult]: For program point L432(line 432) no Hoare annotation was computed. [2020-10-26 20:37:42,771 INFO L274 CegarLoopResult]: For program point L333(lines 333 415) no Hoare annotation was computed. [2020-10-26 20:37:42,771 INFO L274 CegarLoopResult]: For program point L300(lines 300 309) no Hoare annotation was computed. [2020-10-26 20:37:42,771 INFO L274 CegarLoopResult]: For program point L234(lines 234 415) no Hoare annotation was computed. [2020-10-26 20:37:42,771 INFO L274 CegarLoopResult]: For program point L300-2(lines 300 309) no Hoare annotation was computed. [2020-10-26 20:37:42,771 INFO L274 CegarLoopResult]: For program point L400(lines 400 415) no Hoare annotation was computed. [2020-10-26 20:37:42,771 INFO L274 CegarLoopResult]: For program point L334(lines 334 337) no Hoare annotation was computed. [2020-10-26 20:37:42,771 INFO L274 CegarLoopResult]: For program point L334-2(lines 334 337) no Hoare annotation was computed. [2020-10-26 20:37:42,772 INFO L274 CegarLoopResult]: For program point L136(lines 136 415) no Hoare annotation was computed. [2020-10-26 20:37:42,772 INFO L274 CegarLoopResult]: For program point L37(lines 37 415) no Hoare annotation was computed. [2020-10-26 20:37:42,772 INFO L274 CegarLoopResult]: For program point L566-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,772 INFO L274 CegarLoopResult]: For program point L533-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,772 INFO L274 CegarLoopResult]: For program point L500-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,772 INFO L274 CegarLoopResult]: For program point L467-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,772 INFO L274 CegarLoopResult]: For program point L434-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,772 INFO L274 CegarLoopResult]: For program point L236(lines 236 415) no Hoare annotation was computed. [2020-10-26 20:37:42,772 INFO L274 CegarLoopResult]: For program point L71(lines 71 415) no Hoare annotation was computed. [2020-10-26 20:37:42,773 INFO L274 CegarLoopResult]: For program point L567(line 567) no Hoare annotation was computed. [2020-10-26 20:37:42,773 INFO L274 CegarLoopResult]: For program point L534(line 534) no Hoare annotation was computed. [2020-10-26 20:37:42,773 INFO L274 CegarLoopResult]: For program point L501(line 501) no Hoare annotation was computed. [2020-10-26 20:37:42,773 INFO L274 CegarLoopResult]: For program point L468(line 468) no Hoare annotation was computed. [2020-10-26 20:37:42,773 INFO L274 CegarLoopResult]: For program point L435(line 435) no Hoare annotation was computed. [2020-10-26 20:37:42,773 INFO L274 CegarLoopResult]: For program point L204(lines 204 415) no Hoare annotation was computed. [2020-10-26 20:37:42,773 INFO L274 CegarLoopResult]: For program point L171(lines 171 415) no Hoare annotation was computed. [2020-10-26 20:37:42,773 INFO L274 CegarLoopResult]: For program point L370(lines 370 415) no Hoare annotation was computed. [2020-10-26 20:37:42,773 INFO L274 CegarLoopResult]: For program point L205(lines 205 212) no Hoare annotation was computed. [2020-10-26 20:37:42,773 INFO L274 CegarLoopResult]: For program point L205-2(lines 205 212) no Hoare annotation was computed. [2020-10-26 20:37:42,774 INFO L274 CegarLoopResult]: For program point L40(lines 40 415) no Hoare annotation was computed. [2020-10-26 20:37:42,774 INFO L274 CegarLoopResult]: For program point L569-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,774 INFO L274 CegarLoopResult]: For program point L536-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,774 INFO L274 CegarLoopResult]: For program point L503-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,774 INFO L274 CegarLoopResult]: For program point L470-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,774 INFO L274 CegarLoopResult]: For program point L404(lines 404 415) no Hoare annotation was computed. [2020-10-26 20:37:42,774 INFO L274 CegarLoopResult]: For program point L437-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,774 INFO L274 CegarLoopResult]: For program point L239(lines 239 415) no Hoare annotation was computed. [2020-10-26 20:37:42,774 INFO L274 CegarLoopResult]: For program point L570(line 570) no Hoare annotation was computed. [2020-10-26 20:37:42,774 INFO L274 CegarLoopResult]: For program point L537(line 537) no Hoare annotation was computed. [2020-10-26 20:37:42,775 INFO L274 CegarLoopResult]: For program point L504(line 504) no Hoare annotation was computed. [2020-10-26 20:37:42,775 INFO L274 CegarLoopResult]: For program point L471(line 471) no Hoare annotation was computed. [2020-10-26 20:37:42,775 INFO L274 CegarLoopResult]: For program point L438(line 438) no Hoare annotation was computed. [2020-10-26 20:37:42,775 INFO L274 CegarLoopResult]: For program point L339(lines 339 415) no Hoare annotation was computed. [2020-10-26 20:37:42,775 INFO L274 CegarLoopResult]: For program point L240(lines 240 248) no Hoare annotation was computed. [2020-10-26 20:37:42,775 INFO L274 CegarLoopResult]: For program point L240-2(lines 240 248) no Hoare annotation was computed. [2020-10-26 20:37:42,775 INFO L274 CegarLoopResult]: For program point L141(lines 141 415) no Hoare annotation was computed. [2020-10-26 20:37:42,775 INFO L274 CegarLoopResult]: For program point L108(lines 108 415) no Hoare annotation was computed. [2020-10-26 20:37:42,775 INFO L274 CegarLoopResult]: For program point L406(lines 406 415) no Hoare annotation was computed. [2020-10-26 20:37:42,775 INFO L274 CegarLoopResult]: For program point L340(lines 340 349) no Hoare annotation was computed. [2020-10-26 20:37:42,776 INFO L274 CegarLoopResult]: For program point L340-2(lines 340 349) no Hoare annotation was computed. [2020-10-26 20:37:42,776 INFO L274 CegarLoopResult]: For program point L76(lines 76 415) no Hoare annotation was computed. [2020-10-26 20:37:42,776 INFO L274 CegarLoopResult]: For program point L572-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,776 INFO L274 CegarLoopResult]: For program point L539-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,776 INFO L274 CegarLoopResult]: For program point L506-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,776 INFO L274 CegarLoopResult]: For program point L473-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,776 INFO L274 CegarLoopResult]: For program point L440-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,776 INFO L274 CegarLoopResult]: For program point L77(lines 77 82) no Hoare annotation was computed. [2020-10-26 20:37:42,776 INFO L274 CegarLoopResult]: For program point L44(lines 44 415) no Hoare annotation was computed. [2020-10-26 20:37:42,776 INFO L274 CegarLoopResult]: For program point L77-2(lines 77 82) no Hoare annotation was computed. [2020-10-26 20:37:42,777 INFO L274 CegarLoopResult]: For program point L573(line 573) no Hoare annotation was computed. [2020-10-26 20:37:42,777 INFO L274 CegarLoopResult]: For program point L540(line 540) no Hoare annotation was computed. [2020-10-26 20:37:42,777 INFO L274 CegarLoopResult]: For program point L507(line 507) no Hoare annotation was computed. [2020-10-26 20:37:42,777 INFO L274 CegarLoopResult]: For program point L474(line 474) no Hoare annotation was computed. [2020-10-26 20:37:42,777 INFO L274 CegarLoopResult]: For program point L441(line 441) no Hoare annotation was computed. [2020-10-26 20:37:42,777 INFO L274 CegarLoopResult]: For program point L177(lines 177 415) no Hoare annotation was computed. [2020-10-26 20:37:42,777 INFO L274 CegarLoopResult]: For program point L409(lines 409 415) no Hoare annotation was computed. [2020-10-26 20:37:42,777 INFO L274 CegarLoopResult]: For program point L145(lines 145 415) no Hoare annotation was computed. [2020-10-26 20:37:42,777 INFO L274 CegarLoopResult]: For program point L575-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,777 INFO L274 CegarLoopResult]: For program point L542-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,778 INFO L274 CegarLoopResult]: For program point L509-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,778 INFO L274 CegarLoopResult]: For program point L476-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,778 INFO L274 CegarLoopResult]: For program point L443-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,778 INFO L274 CegarLoopResult]: For program point L377(lines 377 415) no Hoare annotation was computed. [2020-10-26 20:37:42,778 INFO L274 CegarLoopResult]: For program point L311(lines 311 415) no Hoare annotation was computed. [2020-10-26 20:37:42,778 INFO L274 CegarLoopResult]: For program point L278(lines 278 415) no Hoare annotation was computed. [2020-10-26 20:37:42,778 INFO L274 CegarLoopResult]: For program point L576(line 576) no Hoare annotation was computed. [2020-10-26 20:37:42,778 INFO L274 CegarLoopResult]: For program point L543(line 543) no Hoare annotation was computed. [2020-10-26 20:37:42,778 INFO L274 CegarLoopResult]: For program point L510(line 510) no Hoare annotation was computed. [2020-10-26 20:37:42,778 INFO L274 CegarLoopResult]: For program point L477(line 477) no Hoare annotation was computed. [2020-10-26 20:37:42,779 INFO L274 CegarLoopResult]: For program point L444(line 444) no Hoare annotation was computed. [2020-10-26 20:37:42,779 INFO L274 CegarLoopResult]: For program point L411(lines 411 415) no Hoare annotation was computed. [2020-10-26 20:37:42,779 INFO L274 CegarLoopResult]: For program point L214(lines 214 415) no Hoare annotation was computed. [2020-10-26 20:37:42,779 INFO L274 CegarLoopResult]: For program point L181(lines 181 415) no Hoare annotation was computed. [2020-10-26 20:37:42,779 INFO L274 CegarLoopResult]: For program point L115(lines 115 415) no Hoare annotation was computed. [2020-10-26 20:37:42,779 INFO L274 CegarLoopResult]: For program point L49(lines 49 415) no Hoare annotation was computed. [2020-10-26 20:37:42,779 INFO L274 CegarLoopResult]: For program point L578-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,779 INFO L274 CegarLoopResult]: For program point L545-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,779 INFO L274 CegarLoopResult]: For program point L512-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,779 INFO L274 CegarLoopResult]: For program point L479-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,780 INFO L274 CegarLoopResult]: For program point L446-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,780 INFO L274 CegarLoopResult]: For program point L380(lines 380 415) no Hoare annotation was computed. [2020-10-26 20:37:42,780 INFO L274 CegarLoopResult]: For program point L579(line 579) no Hoare annotation was computed. [2020-10-26 20:37:42,780 INFO L274 CegarLoopResult]: For program point L546(line 546) no Hoare annotation was computed. [2020-10-26 20:37:42,780 INFO L274 CegarLoopResult]: For program point L513(line 513) no Hoare annotation was computed. [2020-10-26 20:37:42,780 INFO L274 CegarLoopResult]: For program point L480(line 480) no Hoare annotation was computed. [2020-10-26 20:37:42,780 INFO L274 CegarLoopResult]: For program point L447(line 447) no Hoare annotation was computed. [2020-10-26 20:37:42,780 INFO L274 CegarLoopResult]: For program point L282(lines 282 415) no Hoare annotation was computed. [2020-10-26 20:37:42,780 INFO L274 CegarLoopResult]: For program point L150(lines 150 415) no Hoare annotation was computed. [2020-10-26 20:37:42,780 INFO L274 CegarLoopResult]: For program point L84(lines 84 415) no Hoare annotation was computed. [2020-10-26 20:37:42,780 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,781 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,781 INFO L274 CegarLoopResult]: For program point L382(lines 382 415) no Hoare annotation was computed. [2020-10-26 20:37:42,781 INFO L274 CegarLoopResult]: For program point L316(lines 316 415) no Hoare annotation was computed. [2020-10-26 20:37:42,781 INFO L274 CegarLoopResult]: For program point L250(lines 250 415) no Hoare annotation was computed. [2020-10-26 20:37:42,781 INFO L274 CegarLoopResult]: For program point L217(lines 217 415) no Hoare annotation was computed. [2020-10-26 20:37:42,781 INFO L274 CegarLoopResult]: For program point L85(lines 85 91) no Hoare annotation was computed. [2020-10-26 20:37:42,781 INFO L274 CegarLoopResult]: For program point L52(lines 52 415) no Hoare annotation was computed. [2020-10-26 20:37:42,781 INFO L274 CegarLoopResult]: For program point L85-2(lines 85 91) no Hoare annotation was computed. [2020-10-26 20:37:42,781 INFO L274 CegarLoopResult]: For program point L581-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,781 INFO L274 CegarLoopResult]: For program point L548-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,782 INFO L274 CegarLoopResult]: For program point L515-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,782 INFO L274 CegarLoopResult]: For program point L482-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,782 INFO L274 CegarLoopResult]: For program point L416(lines 416 418) no Hoare annotation was computed. [2020-10-26 20:37:42,782 INFO L274 CegarLoopResult]: For program point L449-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,782 INFO L274 CegarLoopResult]: For program point L383(lines 383 389) no Hoare annotation was computed. [2020-10-26 20:37:42,782 INFO L274 CegarLoopResult]: For program point L416-2(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,782 INFO L274 CegarLoopResult]: For program point L317(lines 317 328) no Hoare annotation was computed. [2020-10-26 20:37:42,782 INFO L274 CegarLoopResult]: For program point L383-2(lines 383 389) no Hoare annotation was computed. [2020-10-26 20:37:42,782 INFO L274 CegarLoopResult]: For program point L317-2(lines 317 328) no Hoare annotation was computed. [2020-10-26 20:37:42,782 INFO L274 CegarLoopResult]: For program point L582(line 582) no Hoare annotation was computed. [2020-10-26 20:37:42,782 INFO L274 CegarLoopResult]: For program point L549(line 549) no Hoare annotation was computed. [2020-10-26 20:37:42,783 INFO L274 CegarLoopResult]: For program point L516(line 516) no Hoare annotation was computed. [2020-10-26 20:37:42,783 INFO L274 CegarLoopResult]: For program point L483(line 483) no Hoare annotation was computed. [2020-10-26 20:37:42,783 INFO L274 CegarLoopResult]: For program point L450(line 450) no Hoare annotation was computed. [2020-10-26 20:37:42,783 INFO L274 CegarLoopResult]: For program point L417(line 417) no Hoare annotation was computed. [2020-10-26 20:37:42,783 INFO L274 CegarLoopResult]: For program point L351(lines 351 415) no Hoare annotation was computed. [2020-10-26 20:37:42,783 INFO L274 CegarLoopResult]: For program point L285(lines 285 415) no Hoare annotation was computed. [2020-10-26 20:37:42,783 INFO L274 CegarLoopResult]: For program point L220(lines 220 415) no Hoare annotation was computed. [2020-10-26 20:37:42,783 INFO L274 CegarLoopResult]: For program point L187(lines 187 415) no Hoare annotation was computed. [2020-10-26 20:37:42,783 INFO L274 CegarLoopResult]: For program point L121(lines 121 415) no Hoare annotation was computed. [2020-10-26 20:37:42,783 INFO L274 CegarLoopResult]: For program point L584-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,784 INFO L274 CegarLoopResult]: For program point L551-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,784 INFO L274 CegarLoopResult]: For program point L518-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,784 INFO L274 CegarLoopResult]: For program point L485-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,784 INFO L274 CegarLoopResult]: For program point L452-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,784 INFO L274 CegarLoopResult]: For program point L419-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,784 INFO L274 CegarLoopResult]: For program point L56(lines 56 415) no Hoare annotation was computed. [2020-10-26 20:37:42,784 INFO L274 CegarLoopResult]: For program point L585(line 585) no Hoare annotation was computed. [2020-10-26 20:37:42,784 INFO L274 CegarLoopResult]: For program point L552(line 552) no Hoare annotation was computed. [2020-10-26 20:37:42,785 INFO L270 CegarLoopResult]: At program point L519(line 519) the Hoare annotation is: (let ((.cse1 (= |old(~a17~0)| |old(~a28~0)|)) (.cse0 (not (<= |old(~a28~0)| 10))) (.cse3 (not (= 8 |old(~a17~0)|))) (.cse2 (not (= |old(~a19~0)| 1))) (.cse4 (not (= |old(~a19~0)| |old(~a25~0)|)))) (and (or .cse0 .cse1) (or .cse2 .cse1) (or .cse0 .cse3) (or .cse4 .cse3 (not (= 0 |old(~a25~0)|))) (or .cse2 .cse4 (not (= 7 |old(~a28~0)|))))) [2020-10-26 20:37:42,785 INFO L274 CegarLoopResult]: For program point L486(line 486) no Hoare annotation was computed. [2020-10-26 20:37:42,785 INFO L274 CegarLoopResult]: For program point L519-1(line 519) no Hoare annotation was computed. [2020-10-26 20:37:42,785 INFO L274 CegarLoopResult]: For program point L453(line 453) no Hoare annotation was computed. [2020-10-26 20:37:42,785 INFO L274 CegarLoopResult]: For program point L420(line 420) no Hoare annotation was computed. [2020-10-26 20:37:42,785 INFO L274 CegarLoopResult]: For program point L288(lines 288 415) no Hoare annotation was computed. [2020-10-26 20:37:42,785 INFO L274 CegarLoopResult]: For program point L255(lines 255 415) no Hoare annotation was computed. [2020-10-26 20:37:42,785 INFO L274 CegarLoopResult]: For program point L189(lines 189 415) no Hoare annotation was computed. [2020-10-26 20:37:42,785 INFO L274 CegarLoopResult]: For program point L156(lines 156 415) no Hoare annotation was computed. [2020-10-26 20:37:42,786 INFO L274 CegarLoopResult]: For program point L587-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,786 INFO L274 CegarLoopResult]: For program point L554-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,786 INFO L274 CegarLoopResult]: For program point L521-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,786 INFO L274 CegarLoopResult]: For program point L488-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,786 INFO L274 CegarLoopResult]: For program point L455-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,786 INFO L274 CegarLoopResult]: For program point L422-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,786 INFO L274 CegarLoopResult]: For program point L356(lines 356 415) no Hoare annotation was computed. [2020-10-26 20:37:42,786 INFO L274 CegarLoopResult]: For program point L191(lines 191 415) no Hoare annotation was computed. [2020-10-26 20:37:42,786 INFO L274 CegarLoopResult]: For program point L125(lines 125 415) no Hoare annotation was computed. [2020-10-26 20:37:42,788 INFO L274 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-26 20:37:42,788 INFO L274 CegarLoopResult]: For program point L555(line 555) no Hoare annotation was computed. [2020-10-26 20:37:42,788 INFO L274 CegarLoopResult]: For program point L522(line 522) no Hoare annotation was computed. [2020-10-26 20:37:42,788 INFO L274 CegarLoopResult]: For program point L489(line 489) no Hoare annotation was computed. [2020-10-26 20:37:42,789 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 31 600) the Hoare annotation is: (let ((.cse9 (= ~a28~0 |old(~a28~0)|)) (.cse5 (= ~a11~0 |old(~a11~0)|)) (.cse7 (= ~a25~0 |old(~a25~0)|)) (.cse10 (= ~a19~0 |old(~a19~0)|))) (let ((.cse1 (not (= |old(~a19~0)| |old(~a25~0)|))) (.cse3 (not (= |old(~a19~0)| 1))) (.cse4 (= ~a17~0 |old(~a17~0)|)) (.cse6 (= ~a19~0 1)) (.cse11 (= |old(~a17~0)| |old(~a28~0)|)) (.cse8 (not (<= |old(~a28~0)| 10))) (.cse0 (and .cse9 .cse5 .cse7 (= ~a17~0 8) .cse10)) (.cse2 (not (= 8 |old(~a17~0)|)))) (and (or .cse0 .cse1 .cse2 (not (= 0 |old(~a25~0)|))) (or .cse3 .cse1 (and .cse4 .cse5 .cse6 .cse7 (= 7 ~a28~0)) (not (= 7 |old(~a28~0)|))) (or .cse8 (and .cse9 .cse4 .cse5 .cse7 .cse10) .cse11) (or .cse3 (and .cse9 .cse4 .cse5 .cse6 .cse7) .cse11) (or .cse8 .cse0 .cse2)))) [2020-10-26 20:37:42,789 INFO L274 CegarLoopResult]: For program point L456(line 456) no Hoare annotation was computed. [2020-10-26 20:37:42,789 INFO L274 CegarLoopResult]: For program point L423(line 423) no Hoare annotation was computed. [2020-10-26 20:37:42,789 INFO L274 CegarLoopResult]: For program point L225(lines 225 415) no Hoare annotation was computed. [2020-10-26 20:37:42,789 INFO L274 CegarLoopResult]: For program point L93(lines 93 415) no Hoare annotation was computed. [2020-10-26 20:37:42,789 INFO L274 CegarLoopResult]: For program point L391(lines 391 415) no Hoare annotation was computed. [2020-10-26 20:37:42,789 INFO L274 CegarLoopResult]: For program point L193(lines 193 415) no Hoare annotation was computed. [2020-10-26 20:37:42,789 INFO L274 CegarLoopResult]: For program point L61(lines 61 415) no Hoare annotation was computed. [2020-10-26 20:37:42,790 INFO L274 CegarLoopResult]: For program point L590-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,790 INFO L274 CegarLoopResult]: For program point L557-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,790 INFO L274 CegarLoopResult]: For program point L524-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,790 INFO L274 CegarLoopResult]: For program point L491-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,790 INFO L274 CegarLoopResult]: For program point L458-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,790 INFO L274 CegarLoopResult]: For program point L425-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,790 INFO L274 CegarLoopResult]: For program point L293(lines 293 415) no Hoare annotation was computed. [2020-10-26 20:37:42,790 INFO L274 CegarLoopResult]: For program point L227(lines 227 415) no Hoare annotation was computed. [2020-10-26 20:37:42,790 INFO L274 CegarLoopResult]: For program point L161(lines 161 415) no Hoare annotation was computed. [2020-10-26 20:37:42,790 INFO L274 CegarLoopResult]: For program point L591(line 591) no Hoare annotation was computed. [2020-10-26 20:37:42,790 INFO L274 CegarLoopResult]: For program point L558(line 558) no Hoare annotation was computed. [2020-10-26 20:37:42,790 INFO L274 CegarLoopResult]: For program point L525(line 525) no Hoare annotation was computed. [2020-10-26 20:37:42,791 INFO L274 CegarLoopResult]: For program point L492(line 492) no Hoare annotation was computed. [2020-10-26 20:37:42,791 INFO L274 CegarLoopResult]: For program point L459(line 459) no Hoare annotation was computed. [2020-10-26 20:37:42,791 INFO L274 CegarLoopResult]: For program point L426(line 426) no Hoare annotation was computed. [2020-10-26 20:37:42,791 INFO L274 CegarLoopResult]: For program point L261(lines 261 415) no Hoare annotation was computed. [2020-10-26 20:37:42,792 INFO L274 CegarLoopResult]: For program point L295(lines 295 415) no Hoare annotation was computed. [2020-10-26 20:37:42,792 INFO L274 CegarLoopResult]: For program point L196(lines 196 415) no Hoare annotation was computed. [2020-10-26 20:37:42,792 INFO L274 CegarLoopResult]: For program point L97(lines 97 415) no Hoare annotation was computed. [2020-10-26 20:37:42,793 INFO L274 CegarLoopResult]: For program point L593-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,793 INFO L274 CegarLoopResult]: For program point L560-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,793 INFO L274 CegarLoopResult]: For program point L527-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,793 INFO L274 CegarLoopResult]: For program point L494-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,793 INFO L274 CegarLoopResult]: For program point L461-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,793 INFO L274 CegarLoopResult]: For program point L428-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,793 INFO L274 CegarLoopResult]: For program point L263(lines 263 415) no Hoare annotation was computed. [2020-10-26 20:37:42,793 INFO L274 CegarLoopResult]: For program point L32(lines 32 415) no Hoare annotation was computed. [2020-10-26 20:37:42,793 INFO L274 CegarLoopResult]: For program point L594(line 594) no Hoare annotation was computed. [2020-10-26 20:37:42,793 INFO L274 CegarLoopResult]: For program point L561(line 561) no Hoare annotation was computed. [2020-10-26 20:37:42,793 INFO L274 CegarLoopResult]: For program point L528(line 528) no Hoare annotation was computed. [2020-10-26 20:37:42,794 INFO L274 CegarLoopResult]: For program point L495(line 495) no Hoare annotation was computed. [2020-10-26 20:37:42,794 INFO L274 CegarLoopResult]: For program point L462(line 462) no Hoare annotation was computed. [2020-10-26 20:37:42,794 INFO L274 CegarLoopResult]: For program point L429(line 429) no Hoare annotation was computed. [2020-10-26 20:37:42,794 INFO L274 CegarLoopResult]: For program point L396(lines 396 415) no Hoare annotation was computed. [2020-10-26 20:37:42,794 INFO L274 CegarLoopResult]: For program point L363(lines 363 415) no Hoare annotation was computed. [2020-10-26 20:37:42,794 INFO L274 CegarLoopResult]: For program point L330(lines 330 415) no Hoare annotation was computed. [2020-10-26 20:37:42,794 INFO L274 CegarLoopResult]: For program point L264(lines 264 276) no Hoare annotation was computed. [2020-10-26 20:37:42,794 INFO L274 CegarLoopResult]: For program point L264-2(lines 264 276) no Hoare annotation was computed. [2020-10-26 20:37:42,794 INFO L274 CegarLoopResult]: For program point L132(lines 132 415) no Hoare annotation was computed. [2020-10-26 20:37:42,794 INFO L274 CegarLoopResult]: For program point L67(lines 67 415) no Hoare annotation was computed. [2020-10-26 20:37:42,794 INFO L274 CegarLoopResult]: For program point L596-1(lines 596 598) no Hoare annotation was computed. [2020-10-26 20:37:42,794 INFO L274 CegarLoopResult]: For program point L563-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,795 INFO L274 CegarLoopResult]: For program point L530-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,795 INFO L274 CegarLoopResult]: For program point L497-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,795 INFO L274 CegarLoopResult]: For program point L464-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,795 INFO L274 CegarLoopResult]: For program point L431-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:37:42,795 INFO L274 CegarLoopResult]: For program point L299(lines 299 415) no Hoare annotation was computed. [2020-10-26 20:37:42,795 INFO L274 CegarLoopResult]: For program point L200(lines 200 415) no Hoare annotation was computed. [2020-10-26 20:37:42,795 INFO L274 CegarLoopResult]: For program point L167(lines 167 415) no Hoare annotation was computed. [2020-10-26 20:37:42,795 INFO L274 CegarLoopResult]: For program point L101(lines 101 415) no Hoare annotation was computed. [2020-10-26 20:37:42,795 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:37:42,795 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a19~0 1) (= ~a25~0 0) (= ~a17~0 8) (= 7 ~a28~0)) [2020-10-26 20:37:42,795 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-26 20:37:42,795 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:37:42,796 INFO L270 CegarLoopResult]: At program point L608-2(lines 608 618) the Hoare annotation is: (let ((.cse0 (= ~a19~0 1)) (.cse3 (= ~a17~0 8)) (.cse1 (= ~a25~0 ~a19~0)) (.cse2 (not (= ~a28~0 ~a17~0))) (.cse4 (<= ~a28~0 10))) (or (not (= |old(~a19~0)| 1)) (and .cse0 (= 7 ~a28~0) .cse1) (not (= 8 |old(~a17~0)|)) (and .cse2 .cse0) (not (= 0 |old(~a25~0)|)) (not (= 7 |old(~a28~0)|)) (and .cse3 .cse4) (and (= ~a25~0 0) .cse3 .cse1) (and .cse2 .cse4))) [2020-10-26 20:37:42,796 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 602 619) the Hoare annotation is: (or (not (= |old(~a19~0)| 1)) (not (= 8 |old(~a17~0)|)) (not (= 0 |old(~a25~0)|)) (and (= ~a11~0 |old(~a11~0)|) (= ~a19~0 1) (= ~a25~0 |old(~a25~0)|) (= ~a17~0 8) (= 7 ~a28~0)) (not (= 7 |old(~a28~0)|))) [2020-10-26 20:37:42,796 INFO L274 CegarLoopResult]: For program point L608-3(lines 602 619) no Hoare annotation was computed. [2020-10-26 20:37:42,796 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 602 619) no Hoare annotation was computed. [2020-10-26 20:37:42,796 INFO L270 CegarLoopResult]: At program point L616(line 616) the Hoare annotation is: (let ((.cse0 (= ~a19~0 1)) (.cse3 (= ~a17~0 8)) (.cse1 (= ~a25~0 ~a19~0)) (.cse2 (not (= ~a28~0 ~a17~0))) (.cse4 (<= ~a28~0 10))) (or (not (= |old(~a19~0)| 1)) (and .cse0 (= 7 ~a28~0) .cse1) (not (= 8 |old(~a17~0)|)) (and .cse2 .cse0) (not (= 0 |old(~a25~0)|)) (not (= 7 |old(~a28~0)|)) (and .cse3 .cse4) (and (= ~a25~0 0) .cse3 .cse1) (and .cse2 .cse4))) [2020-10-26 20:37:42,796 INFO L274 CegarLoopResult]: For program point L616-1(line 616) no Hoare annotation was computed. [2020-10-26 20:37:42,796 INFO L274 CegarLoopResult]: For program point L613(line 613) no Hoare annotation was computed. [2020-10-26 20:37:42,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 08:37:42 BoogieIcfgContainer [2020-10-26 20:37:42,829 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 20:37:42,831 INFO L168 Benchmark]: Toolchain (without parser) took 49003.28 ms. Allocated memory was 151.0 MB in the beginning and 652.2 MB in the end (delta: 501.2 MB). Free memory was 124.5 MB in the beginning and 341.1 MB in the end (delta: -216.6 MB). Peak memory consumption was 387.5 MB. Max. memory is 8.0 GB. [2020-10-26 20:37:42,832 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 151.0 MB. Free memory is still 124.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 20:37:42,833 INFO L168 Benchmark]: CACSL2BoogieTranslator took 686.86 ms. Allocated memory is still 151.0 MB. Free memory was 123.9 MB in the beginning and 98.0 MB in the end (delta: 25.9 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. [2020-10-26 20:37:42,836 INFO L168 Benchmark]: Boogie Preprocessor took 176.14 ms. Allocated memory is still 151.0 MB. Free memory was 98.0 MB in the beginning and 93.1 MB in the end (delta: 4.8 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-26 20:37:42,841 INFO L168 Benchmark]: RCFGBuilder took 1661.14 ms. Allocated memory was 151.0 MB in the beginning and 208.7 MB in the end (delta: 57.7 MB). Free memory was 93.1 MB in the beginning and 171.7 MB in the end (delta: -78.6 MB). Peak memory consumption was 47.8 MB. Max. memory is 8.0 GB. [2020-10-26 20:37:42,847 INFO L168 Benchmark]: TraceAbstraction took 46460.20 ms. Allocated memory was 208.7 MB in the beginning and 652.2 MB in the end (delta: 443.5 MB). Free memory was 171.7 MB in the beginning and 341.1 MB in the end (delta: -169.4 MB). Peak memory consumption was 376.4 MB. Max. memory is 8.0 GB. [2020-10-26 20:37:42,855 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 151.0 MB. Free memory is still 124.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 686.86 ms. Allocated memory is still 151.0 MB. Free memory was 123.9 MB in the beginning and 98.0 MB in the end (delta: 25.9 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 176.14 ms. Allocated memory is still 151.0 MB. Free memory was 98.0 MB in the beginning and 93.1 MB in the end (delta: 4.8 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1661.14 ms. Allocated memory was 151.0 MB in the beginning and 208.7 MB in the end (delta: 57.7 MB). Free memory was 93.1 MB in the beginning and 171.7 MB in the end (delta: -78.6 MB). Peak memory consumption was 47.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 46460.20 ms. Allocated memory was 208.7 MB in the beginning and 652.2 MB in the end (delta: 443.5 MB). Free memory was 171.7 MB in the beginning and 341.1 MB in the end (delta: -169.4 MB). Peak memory consumption was 376.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 608]: Loop Invariant Derived loop invariant: (((((((!(\old(a19) == 1) || ((a19 == 1 && 7 == a28) && a25 == a19)) || !(8 == \old(a17))) || (!(a28 == a17) && a19 == 1)) || !(0 == \old(a25))) || !(7 == \old(a28))) || (a17 == 8 && a28 <= 10)) || ((a25 == 0 && a17 == 8) && a25 == a19)) || (!(a28 == a17) && a28 <= 10) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 240 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 42.7s, OverallIterations: 8, TraceHistogramMax: 4, AutomataDifference: 22.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 308 SDtfs, 4103 SDslu, 472 SDs, 0 SdLazy, 7048 SolverSat, 1321 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 112 GetRequests, 46 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3224occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 8 MinimizatonAttempts, 298 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 228 PreInvPairs, 284 NumberOfFragments, 434 HoareAnnotationTreeSize, 228 FomulaSimplifications, 57032 FormulaSimplificationTreeSizeReduction, 0.9s HoareSimplificationTime, 9 FomulaSimplificationsInter, 4309 FormulaSimplificationTreeSizeReductionInter, 2.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 17.9s InterpolantComputationTime, 1261 NumberOfCodeBlocks, 1261 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1253 ConstructedInterpolants, 0 QuantifiedInterpolants, 766982 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 3 PerfectInterpolantSequences, 307/346 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...