/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label53.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 20:36:27,904 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 20:36:27,907 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 20:36:27,961 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 20:36:27,962 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 20:36:27,968 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 20:36:27,971 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 20:36:27,977 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 20:36:27,981 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 20:36:27,986 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 20:36:27,988 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 20:36:27,989 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 20:36:27,989 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 20:36:27,993 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 20:36:27,996 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 20:36:28,000 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 20:36:28,001 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 20:36:28,001 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 20:36:28,005 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 20:36:28,007 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 20:36:28,009 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 20:36:28,010 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 20:36:28,012 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 20:36:28,013 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 20:36:28,016 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 20:36:28,016 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 20:36:28,016 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 20:36:28,017 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 20:36:28,018 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 20:36:28,019 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 20:36:28,019 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 20:36:28,020 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 20:36:28,021 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 20:36:28,022 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 20:36:28,023 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 20:36:28,024 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 20:36:28,024 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 20:36:28,025 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 20:36:28,025 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 20:36:28,026 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 20:36:28,027 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 20:36:28,028 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 20:36:28,062 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 20:36:28,062 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 20:36:28,064 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 20:36:28,064 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 20:36:28,064 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 20:36:28,065 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 20:36:28,065 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 20:36:28,065 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 20:36:28,065 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 20:36:28,065 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 20:36:28,065 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 20:36:28,066 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 20:36:28,066 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 20:36:28,066 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 20:36:28,066 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 20:36:28,066 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 20:36:28,067 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 20:36:28,067 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 20:36:28,067 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 20:36:28,067 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 20:36:28,067 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 20:36:28,068 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 20:36:28,068 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 20:36:28,068 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 20:36:28,068 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 20:36:28,068 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 20:36:28,069 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 20:36:28,069 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 20:36:28,069 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 20:36:28,069 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 20:36:28,442 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 20:36:28,473 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 20:36:28,477 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 20:36:28,478 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 20:36:28,479 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 20:36:28,481 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label53.c [2020-10-26 20:36:28,559 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cc81ea000/f70979ba0cf542cbb5ba4ab4a397f0ca/FLAGd121b7568 [2020-10-26 20:36:29,441 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 20:36:29,441 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label53.c [2020-10-26 20:36:29,457 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cc81ea000/f70979ba0cf542cbb5ba4ab4a397f0ca/FLAGd121b7568 [2020-10-26 20:36:29,630 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cc81ea000/f70979ba0cf542cbb5ba4ab4a397f0ca [2020-10-26 20:36:29,633 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 20:36:29,641 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 20:36:29,642 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 20:36:29,643 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 20:36:29,647 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 20:36:29,648 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:36:29" (1/1) ... [2020-10-26 20:36:29,651 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46e23019 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:29, skipping insertion in model container [2020-10-26 20:36:29,652 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:36:29" (1/1) ... [2020-10-26 20:36:29,661 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 20:36:29,729 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 20:36:30,224 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:36:30,237 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 20:36:30,388 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:36:30,416 INFO L208 MainTranslator]: Completed translation [2020-10-26 20:36:30,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:30 WrapperNode [2020-10-26 20:36:30,417 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 20:36:30,418 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 20:36:30,418 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 20:36:30,419 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 20:36:30,438 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:30" (1/1) ... [2020-10-26 20:36:30,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:30" (1/1) ... [2020-10-26 20:36:30,478 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:30" (1/1) ... [2020-10-26 20:36:30,478 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:30" (1/1) ... [2020-10-26 20:36:30,550 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:30" (1/1) ... [2020-10-26 20:36:30,572 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:30" (1/1) ... [2020-10-26 20:36:30,580 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:30" (1/1) ... [2020-10-26 20:36:30,588 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 20:36:30,590 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 20:36:30,590 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 20:36:30,590 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 20:36:30,591 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:30" (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 20:36:30,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 20:36:30,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 20:36:30,681 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 20:36:30,681 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 20:36:30,682 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 20:36:30,682 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 20:36:30,683 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 20:36:30,683 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 20:36:30,683 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 20:36:30,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 20:36:30,684 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 20:36:30,685 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 20:36:30,685 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 20:36:30,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 20:36:30,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 20:36:30,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 20:36:30,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 20:36:30,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 20:36:30,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 20:36:32,111 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 20:36:32,112 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 20:36:32,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:36:32 BoogieIcfgContainer [2020-10-26 20:36:32,114 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 20:36:32,116 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 20:36:32,116 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 20:36:32,120 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 20:36:32,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 08:36:29" (1/3) ... [2020-10-26 20:36:32,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7541df34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:36:32, skipping insertion in model container [2020-10-26 20:36:32,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:30" (2/3) ... [2020-10-26 20:36:32,122 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7541df34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:36:32, skipping insertion in model container [2020-10-26 20:36:32,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:36:32" (3/3) ... [2020-10-26 20:36:32,124 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label53.c [2020-10-26 20:36:32,137 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 20:36:32,143 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 20:36:32,165 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 20:36:32,195 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 20:36:32,195 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 20:36:32,195 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 20:36:32,195 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 20:36:32,196 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 20:36:32,196 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 20:36:32,196 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 20:36:32,196 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 20:36:32,220 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2020-10-26 20:36:32,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-26 20:36:32,233 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:36:32,234 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] [2020-10-26 20:36:32,235 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:36:32,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:36:32,242 INFO L82 PathProgramCache]: Analyzing trace with hash -142401861, now seen corresponding path program 1 times [2020-10-26 20:36:32,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:36:32,252 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [80174851] [2020-10-26 20:36:32,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:36:32,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:32,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:33,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:34,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:34,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-26 20:36:34,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:36:34,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1927 [2020-10-26 20:36:34,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:34,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-26 20:36:34,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:36:34,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-26 20:36:34,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 20:36:35,260 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 44 [2020-10-26 20:36:35,484 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 42 [2020-10-26 20:36:35,673 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 38 [2020-10-26 20:36:35,830 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 35 [2020-10-26 20:36:36,182 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:36:36,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:36:36,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:36,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:36,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:36,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:36:36,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:36,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-26 20:36:36,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:36,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:36:36,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:36,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:36:36,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:36,473 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 20:36:36,474 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [80174851] [2020-10-26 20:36:36,476 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:36:36,476 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-26 20:36:36,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840381184] [2020-10-26 20:36:36,486 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-26 20:36:36,487 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:36:36,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-26 20:36:36,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:36:36,511 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 12 states. [2020-10-26 20:36:36,756 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-26 20:36:36,989 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-26 20:36:37,183 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-26 20:36:37,412 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-26 20:36:37,900 WARN L193 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 129 [2020-10-26 20:36:38,330 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 126 [2020-10-26 20:36:39,106 WARN L193 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 123 [2020-10-26 20:36:39,994 WARN L193 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 120 [2020-10-26 20:36:40,597 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 115 [2020-10-26 20:36:42,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:36:42,080 INFO L93 Difference]: Finished difference Result 479 states and 799 transitions. [2020-10-26 20:36:42,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-26 20:36:42,086 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 121 [2020-10-26 20:36:42,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:36:42,099 INFO L225 Difference]: With dead ends: 479 [2020-10-26 20:36:42,099 INFO L226 Difference]: Without dead ends: 206 [2020-10-26 20:36:42,107 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=122, Invalid=298, Unknown=0, NotChecked=0, Total=420 [2020-10-26 20:36:42,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-10-26 20:36:42,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2020-10-26 20:36:42,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-10-26 20:36:42,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 278 transitions. [2020-10-26 20:36:42,213 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 278 transitions. Word has length 121 [2020-10-26 20:36:42,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:36:42,214 INFO L481 AbstractCegarLoop]: Abstraction has 206 states and 278 transitions. [2020-10-26 20:36:42,214 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-26 20:36:42,214 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 278 transitions. [2020-10-26 20:36:42,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-26 20:36:42,221 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:36:42,221 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:36:42,222 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 20:36:42,222 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:36:42,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:36:42,225 INFO L82 PathProgramCache]: Analyzing trace with hash -1829217955, now seen corresponding path program 1 times [2020-10-26 20:36:42,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:36:42,226 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1577075003] [2020-10-26 20:36:42,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:36:42,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:42,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:42,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:42,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:43,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:43,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-26 20:36:43,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:36:43,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1594 [2020-10-26 20:36:43,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:43,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:36:43,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:36:43,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-26 20:36:43,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-26 20:36:44,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:36:44,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:44,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:44,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:44,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:36:44,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:44,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-26 20:36:44,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:44,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:36:44,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:44,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:36:44,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:44,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:36:44,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:44,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:44,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:44,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:44,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:36:44,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:36:44,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:36:44,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:44,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:44,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:44,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:36:44,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:44,267 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-26 20:36:44,267 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1577075003] [2020-10-26 20:36:44,268 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:36:44,268 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 20:36:44,268 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595725741] [2020-10-26 20:36:44,270 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:36:44,270 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:36:44,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:36:44,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:36:44,271 INFO L87 Difference]: Start difference. First operand 206 states and 278 transitions. Second operand 7 states. [2020-10-26 20:36:46,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:36:46,561 INFO L93 Difference]: Finished difference Result 628 states and 917 transitions. [2020-10-26 20:36:46,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:36:46,565 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 129 [2020-10-26 20:36:46,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:36:46,575 INFO L225 Difference]: With dead ends: 628 [2020-10-26 20:36:46,575 INFO L226 Difference]: Without dead ends: 488 [2020-10-26 20:36:46,581 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:36:46,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2020-10-26 20:36:46,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 484. [2020-10-26 20:36:46,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 484 states. [2020-10-26 20:36:46,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 681 transitions. [2020-10-26 20:36:46,652 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 681 transitions. Word has length 129 [2020-10-26 20:36:46,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:36:46,653 INFO L481 AbstractCegarLoop]: Abstraction has 484 states and 681 transitions. [2020-10-26 20:36:46,653 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:36:46,653 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 681 transitions. [2020-10-26 20:36:46,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-26 20:36:46,658 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:36:46,659 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2020-10-26 20:36:46,659 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 20:36:46,659 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:36:46,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:36:46,660 INFO L82 PathProgramCache]: Analyzing trace with hash -132681560, now seen corresponding path program 1 times [2020-10-26 20:36:46,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:36:46,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1271795720] [2020-10-26 20:36:46,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:36:46,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:46,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:46,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:46,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:48,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:49,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:49,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-26 20:36:49,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:36:49,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2481 [2020-10-26 20:36:49,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:49,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:36:49,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:36:49,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-26 20:36:49,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:49,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:36:49,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:49,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:49,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:49,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:36:49,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:49,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-26 20:36:49,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:49,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:36:49,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:49,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:36:49,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:49,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:36:49,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:49,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:49,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:49,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:49,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:36:49,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:36:49,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:36:49,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:49,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:49,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:49,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:36:49,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:49,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:36:49,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:49,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:49,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:49,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-26 20:36:49,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:49,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-26 20:36:49,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:49,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:49,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:49,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-26 20:36:49,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:49,567 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-26 20:36:49,567 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1271795720] [2020-10-26 20:36:49,567 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:36:49,567 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:36:49,568 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116497387] [2020-10-26 20:36:49,568 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:36:49,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:36:49,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:36:49,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:36:49,570 INFO L87 Difference]: Start difference. First operand 484 states and 681 transitions. Second operand 8 states. [2020-10-26 20:36:51,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:36:51,595 INFO L93 Difference]: Finished difference Result 1343 states and 1982 transitions. [2020-10-26 20:36:51,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 20:36:51,596 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 146 [2020-10-26 20:36:51,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:36:51,603 INFO L225 Difference]: With dead ends: 1343 [2020-10-26 20:36:51,604 INFO L226 Difference]: Without dead ends: 925 [2020-10-26 20:36:51,606 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-26 20:36:51,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2020-10-26 20:36:51,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 905. [2020-10-26 20:36:51,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 905 states. [2020-10-26 20:36:51,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1201 transitions. [2020-10-26 20:36:51,677 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1201 transitions. Word has length 146 [2020-10-26 20:36:51,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:36:51,677 INFO L481 AbstractCegarLoop]: Abstraction has 905 states and 1201 transitions. [2020-10-26 20:36:51,677 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:36:51,677 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1201 transitions. [2020-10-26 20:36:51,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-26 20:36:51,681 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:36:51,682 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:36:51,682 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 20:36:51,682 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:36:51,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:36:51,683 INFO L82 PathProgramCache]: Analyzing trace with hash 68326533, now seen corresponding path program 1 times [2020-10-26 20:36:51,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:36:51,683 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2088920026] [2020-10-26 20:36:51,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:36:51,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:51,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:51,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:52,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:53,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:54,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:54,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-26 20:36:54,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:36:54,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2733 [2020-10-26 20:36:54,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:54,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:36:54,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:36:54,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-26 20:36:54,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:54,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:36:54,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:54,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:54,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:54,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:36:54,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:54,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:36:54,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:54,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:54,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:54,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:54,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:54,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:36:54,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:54,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:54,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:54,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:36:54,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:54,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 20:36:54,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:54,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:36:54,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:54,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 20:36:54,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:54,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:36:54,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:54,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:54,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:54,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:54,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:36:54,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:36:54,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-26 20:36:54,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:54,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:54,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:54,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-26 20:36:54,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:36:54,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-26 20:36:54,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:54,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:54,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:54,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-26 20:36:54,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:54,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-26 20:36:54,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:54,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:54,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:54,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-26 20:36:54,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:54,944 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 45 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-26 20:36:54,944 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2088920026] [2020-10-26 20:36:54,944 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:36:54,945 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-26 20:36:54,945 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183313995] [2020-10-26 20:36:54,947 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-26 20:36:54,948 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:36:54,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-26 20:36:54,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-26 20:36:54,950 INFO L87 Difference]: Start difference. First operand 905 states and 1201 transitions. Second operand 10 states. [2020-10-26 20:36:55,105 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-26 20:36:55,765 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-26 20:36:58,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:36:58,879 INFO L93 Difference]: Finished difference Result 2241 states and 3212 transitions. [2020-10-26 20:36:58,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-26 20:36:58,880 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 159 [2020-10-26 20:36:58,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:36:58,891 INFO L225 Difference]: With dead ends: 2241 [2020-10-26 20:36:58,892 INFO L226 Difference]: Without dead ends: 1402 [2020-10-26 20:36:58,896 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=118, Invalid=388, Unknown=0, NotChecked=0, Total=506 [2020-10-26 20:36:58,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1402 states. [2020-10-26 20:36:58,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1402 to 1388. [2020-10-26 20:36:58,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1388 states. [2020-10-26 20:36:58,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 1910 transitions. [2020-10-26 20:36:58,971 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 1910 transitions. Word has length 159 [2020-10-26 20:36:58,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:36:58,971 INFO L481 AbstractCegarLoop]: Abstraction has 1388 states and 1910 transitions. [2020-10-26 20:36:58,971 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-26 20:36:58,971 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 1910 transitions. [2020-10-26 20:36:58,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-10-26 20:36:58,978 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:36:58,979 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:36:58,979 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 20:36:58,979 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:36:58,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:36:58,980 INFO L82 PathProgramCache]: Analyzing trace with hash 1770599622, now seen corresponding path program 1 times [2020-10-26 20:36:58,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:36:58,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [294832577] [2020-10-26 20:36:58,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:36:59,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:59,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:59,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:59,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:59,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:00,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:03,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:04,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:04,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-26 20:37:04,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-26 20:37:04,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-26 20:37:04,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:04,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:37:04,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:37:04,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-26 20:37:04,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:04,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:04,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:04,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:04,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:04,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:04,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:04,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-26 20:37:04,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:04,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:04,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:04,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:37:04,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:04,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:04,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:04,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:04,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:04,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:04,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:37:04,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:37:04,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-26 20:37:04,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:04,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:04,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:04,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:37:04,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:37:04,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:37:04,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:04,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:04,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:04,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:37:04,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:04,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-26 20:37:04,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:04,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:04,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:04,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-26 20:37:04,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:04,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-26 20:37:04,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:04,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:04,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:04,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-26 20:37:04,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:04,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:37:04,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:04,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:04,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-26 20:37:04,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:04,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:37:04,473 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 37 proven. 20 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-26 20:37:04,473 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [294832577] [2020-10-26 20:37:04,474 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:37:04,474 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-26 20:37:04,474 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170933141] [2020-10-26 20:37:04,475 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-26 20:37:04,475 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:04,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-26 20:37:04,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-26 20:37:04,477 INFO L87 Difference]: Start difference. First operand 1388 states and 1910 transitions. Second operand 9 states. [2020-10-26 20:37:06,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:06,546 INFO L93 Difference]: Finished difference Result 3119 states and 4405 transitions. [2020-10-26 20:37:06,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:37:06,546 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 162 [2020-10-26 20:37:06,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:06,558 INFO L225 Difference]: With dead ends: 3119 [2020-10-26 20:37:06,558 INFO L226 Difference]: Without dead ends: 1797 [2020-10-26 20:37:06,564 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2020-10-26 20:37:06,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1797 states. [2020-10-26 20:37:06,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1797 to 1487. [2020-10-26 20:37:06,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1487 states. [2020-10-26 20:37:06,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1487 states to 1487 states and 1896 transitions. [2020-10-26 20:37:06,621 INFO L78 Accepts]: Start accepts. Automaton has 1487 states and 1896 transitions. Word has length 162 [2020-10-26 20:37:06,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:06,621 INFO L481 AbstractCegarLoop]: Abstraction has 1487 states and 1896 transitions. [2020-10-26 20:37:06,621 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-26 20:37:06,621 INFO L276 IsEmpty]: Start isEmpty. Operand 1487 states and 1896 transitions. [2020-10-26 20:37:06,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2020-10-26 20:37:06,628 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:37:06,628 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 20:37:06,629 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 20:37:06,629 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:37:06,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:37:06,629 INFO L82 PathProgramCache]: Analyzing trace with hash 1863342155, now seen corresponding path program 1 times [2020-10-26 20:37:06,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:37:06,630 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [314771168] [2020-10-26 20:37:06,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:37:06,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:06,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:06,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:06,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:07,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:08,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:09,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:11,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:11,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 281 [2020-10-26 20:37:11,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-26 20:37:11,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-26 20:37:11,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:11,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-26 20:37:11,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:37:11,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-26 20:37:11,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:11,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:11,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:11,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:11,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:11,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:11,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:11,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-26 20:37:11,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:11,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:11,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:11,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:37:11,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:11,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:11,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:11,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:11,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:11,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:11,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:37:11,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:37:11,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 20:37:11,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:11,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:11,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:11,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:37:11,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:11,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:37:11,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:11,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:11,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:12,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:12,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-26 20:37:12,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:37:12,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-26 20:37:12,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:12,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:12,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:12,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-26 20:37:12,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:12,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:37:12,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:12,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:12,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:12,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:12,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-26 20:37:12,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:37:12,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-26 20:37:12,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:12,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:12,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:12,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-26 20:37:12,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:12,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-26 20:37:12,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:12,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:12,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:12,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-26 20:37:12,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:12,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-26 20:37:12,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:12,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:12,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:12,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-26 20:37:12,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:12,519 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 161 proven. 46 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2020-10-26 20:37:12,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [314771168] [2020-10-26 20:37:12,519 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:37:12,519 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:37:12,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211620602] [2020-10-26 20:37:12,520 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:37:12,521 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:12,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:37:12,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:37:12,521 INFO L87 Difference]: Start difference. First operand 1487 states and 1896 transitions. Second operand 8 states. [2020-10-26 20:37:14,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:14,328 INFO L93 Difference]: Finished difference Result 3047 states and 3955 transitions. [2020-10-26 20:37:14,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 20:37:14,331 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 263 [2020-10-26 20:37:14,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:14,342 INFO L225 Difference]: With dead ends: 3047 [2020-10-26 20:37:14,343 INFO L226 Difference]: Without dead ends: 1626 [2020-10-26 20:37:14,348 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:37:14,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1626 states. [2020-10-26 20:37:14,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1626 to 1487. [2020-10-26 20:37:14,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1487 states. [2020-10-26 20:37:14,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1487 states to 1487 states and 1896 transitions. [2020-10-26 20:37:14,410 INFO L78 Accepts]: Start accepts. Automaton has 1487 states and 1896 transitions. Word has length 263 [2020-10-26 20:37:14,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:14,411 INFO L481 AbstractCegarLoop]: Abstraction has 1487 states and 1896 transitions. [2020-10-26 20:37:14,411 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:37:14,412 INFO L276 IsEmpty]: Start isEmpty. Operand 1487 states and 1896 transitions. [2020-10-26 20:37:14,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2020-10-26 20:37:14,420 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:37:14,420 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:37:14,420 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 20:37:14,421 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:37:14,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:37:14,422 INFO L82 PathProgramCache]: Analyzing trace with hash 643166040, now seen corresponding path program 1 times [2020-10-26 20:37:14,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:37:14,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [309437128] [2020-10-26 20:37:14,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:37:14,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:14,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:14,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:14,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:17,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:19,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:19,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 292 [2020-10-26 20:37:19,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:37:19,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-26 20:37:19,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:19,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:19,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:37:19,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-26 20:37:19,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:19,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:19,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:19,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:19,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:19,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:19,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:19,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 20:37:19,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:19,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:19,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:19,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:19,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:19,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:19,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:19,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:19,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:19,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:37:19,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:19,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:37:19,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:19,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:19,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:19,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 20:37:19,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:19,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:37:19,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:19,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:19,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:19,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-26 20:37:19,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:19,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-26 20:37:19,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:19,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:19,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:19,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-26 20:37:19,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:19,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-26 20:37:19,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:19,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:19,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:19,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:37:19,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:19,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 20:37:19,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:19,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:19,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-10-26 20:37:19,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:19,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:19,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-26 20:37:19,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:19,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:19,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:19,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:37:19,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:19,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:37:19,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:19,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:19,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 20:37:19,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:19,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:19,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-26 20:37:19,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:19,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:19,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:19,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:37:19,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:19,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:37:19,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:19,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:19,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:37:19,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:19,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:19,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-26 20:37:19,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:19,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:19,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:19,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-26 20:37:19,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:19,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-26 20:37:19,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:19,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:19,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-26 20:37:19,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:19,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:19,959 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 152 proven. 56 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2020-10-26 20:37:19,959 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [309437128] [2020-10-26 20:37:19,960 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:37:19,960 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:37:19,960 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706263] [2020-10-26 20:37:19,961 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:37:19,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:19,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:37:19,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:37:19,962 INFO L87 Difference]: Start difference. First operand 1487 states and 1896 transitions. Second operand 7 states. [2020-10-26 20:37:20,108 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-26 20:37:21,298 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-26 20:37:21,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:21,840 INFO L93 Difference]: Finished difference Result 3333 states and 4308 transitions. [2020-10-26 20:37:21,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 20:37:21,841 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 270 [2020-10-26 20:37:21,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:21,851 INFO L225 Difference]: With dead ends: 3333 [2020-10-26 20:37:21,851 INFO L226 Difference]: Without dead ends: 1912 [2020-10-26 20:37:21,856 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-26 20:37:21,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1912 states. [2020-10-26 20:37:21,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1912 to 1908. [2020-10-26 20:37:21,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1908 states. [2020-10-26 20:37:21,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1908 states to 1908 states and 2392 transitions. [2020-10-26 20:37:21,915 INFO L78 Accepts]: Start accepts. Automaton has 1908 states and 2392 transitions. Word has length 270 [2020-10-26 20:37:21,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:21,915 INFO L481 AbstractCegarLoop]: Abstraction has 1908 states and 2392 transitions. [2020-10-26 20:37:21,915 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:37:21,915 INFO L276 IsEmpty]: Start isEmpty. Operand 1908 states and 2392 transitions. [2020-10-26 20:37:21,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2020-10-26 20:37:21,923 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:37:21,923 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:37:21,923 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 20:37:21,924 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:37:21,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:37:21,924 INFO L82 PathProgramCache]: Analyzing trace with hash -1721634569, now seen corresponding path program 1 times [2020-10-26 20:37:21,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:37:21,925 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [933993407] [2020-10-26 20:37:21,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:37:21,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:21,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:22,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:22,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:22,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:22,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:23,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:23,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:26,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:26,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 295 [2020-10-26 20:37:26,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-26 20:37:26,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-26 20:37:26,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:26,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:37:26,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:37:26,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-26 20:37:26,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:27,126 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:37:27,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:27,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:27,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:27,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:27,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:27,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:27,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:37:27,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:27,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:27,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:27,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:37:27,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:27,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:27,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:27,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:27,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:27,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:27,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:37:27,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:37:27,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:37:27,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:27,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:27,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:27,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:37:27,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:27,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:37:27,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:27,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:27,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:27,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-26 20:37:27,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:27,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-26 20:37:27,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:27,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:27,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:27,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-26 20:37:27,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:27,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-26 20:37:27,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:27,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:27,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:27,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:37:27,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:27,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-26 20:37:27,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:27,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:27,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-10-26 20:37:27,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:27,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:27,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-26 20:37:27,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:27,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:27,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:27,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:37:27,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:27,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 20:37:27,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:27,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:27,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 20:37:27,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:27,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:27,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-26 20:37:27,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:27,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:27,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:27,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:37:27,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:27,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:37:27,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:27,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:27,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:37:27,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:27,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:27,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-26 20:37:27,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:27,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:27,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:27,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-26 20:37:27,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:27,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-26 20:37:27,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:27,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:27,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-26 20:37:27,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:27,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:27,588 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 151 proven. 76 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2020-10-26 20:37:27,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [933993407] [2020-10-26 20:37:27,588 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:37:27,589 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:37:27,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926690264] [2020-10-26 20:37:27,589 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:37:27,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:27,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:37:27,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:37:27,590 INFO L87 Difference]: Start difference. First operand 1908 states and 2392 transitions. Second operand 8 states. [2020-10-26 20:37:27,738 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-26 20:37:28,430 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-26 20:37:29,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:29,559 INFO L93 Difference]: Finished difference Result 3889 states and 4951 transitions. [2020-10-26 20:37:29,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:37:29,559 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 273 [2020-10-26 20:37:29,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:29,569 INFO L225 Difference]: With dead ends: 3889 [2020-10-26 20:37:29,569 INFO L226 Difference]: Without dead ends: 2047 [2020-10-26 20:37:29,575 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2020-10-26 20:37:29,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2047 states. [2020-10-26 20:37:29,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2047 to 1906. [2020-10-26 20:37:29,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1906 states. [2020-10-26 20:37:29,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1906 states to 1906 states and 2382 transitions. [2020-10-26 20:37:29,631 INFO L78 Accepts]: Start accepts. Automaton has 1906 states and 2382 transitions. Word has length 273 [2020-10-26 20:37:29,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:29,632 INFO L481 AbstractCegarLoop]: Abstraction has 1906 states and 2382 transitions. [2020-10-26 20:37:29,632 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:37:29,632 INFO L276 IsEmpty]: Start isEmpty. Operand 1906 states and 2382 transitions. [2020-10-26 20:37:29,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2020-10-26 20:37:29,640 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:37:29,640 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:37:29,640 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 20:37:29,641 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:37:29,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:37:29,641 INFO L82 PathProgramCache]: Analyzing trace with hash 379718790, now seen corresponding path program 1 times [2020-10-26 20:37:29,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:37:29,642 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [691949393] [2020-10-26 20:37:29,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:37:29,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:29,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:29,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:30,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:31,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:31,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 304 [2020-10-26 20:37:31,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:37:31,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1625 [2020-10-26 20:37:31,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:31,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:31,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-26 20:37:31,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-26 20:37:31,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:31,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:31,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:31,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:31,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:31,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:31,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:31,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:37:31,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:31,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:31,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:31,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:31,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:31,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:31,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:31,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:31,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:31,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:37:31,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:31,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-26 20:37:31,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:31,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:31,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:31,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-26 20:37:31,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:31,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:37:31,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:31,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:31,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:31,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:37:31,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:31,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-26 20:37:31,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:31,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:31,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:31,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-26 20:37:31,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:31,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-26 20:37:31,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:31,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:31,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:31,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:37:31,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:31,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:37:31,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:31,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:31,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 20:37:31,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:31,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:31,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-26 20:37:31,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:31,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:31,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:31,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:37:31,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:31,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:37:31,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:31,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:31,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:37:31,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:31,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:31,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-26 20:37:31,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:31,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:31,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:31,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-26 20:37:31,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:31,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:37:31,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:31,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:31,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-26 20:37:31,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:31,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:31,728 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 198 proven. 64 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2020-10-26 20:37:31,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [691949393] [2020-10-26 20:37:31,729 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:37:31,729 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:37:31,729 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937895117] [2020-10-26 20:37:31,730 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:37:31,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:31,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:37:31,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:37:31,731 INFO L87 Difference]: Start difference. First operand 1906 states and 2382 transitions. Second operand 8 states. [2020-10-26 20:37:32,311 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-26 20:37:34,462 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-26 20:37:34,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:34,500 INFO L93 Difference]: Finished difference Result 4721 states and 6035 transitions. [2020-10-26 20:37:34,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-26 20:37:34,500 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 284 [2020-10-26 20:37:34,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:34,513 INFO L225 Difference]: With dead ends: 4721 [2020-10-26 20:37:34,514 INFO L226 Difference]: Without dead ends: 2881 [2020-10-26 20:37:34,518 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-26 20:37:34,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2881 states. [2020-10-26 20:37:34,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2881 to 2736. [2020-10-26 20:37:34,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2736 states. [2020-10-26 20:37:34,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2736 states to 2736 states and 3401 transitions. [2020-10-26 20:37:34,596 INFO L78 Accepts]: Start accepts. Automaton has 2736 states and 3401 transitions. Word has length 284 [2020-10-26 20:37:34,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:34,596 INFO L481 AbstractCegarLoop]: Abstraction has 2736 states and 3401 transitions. [2020-10-26 20:37:34,596 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:37:34,596 INFO L276 IsEmpty]: Start isEmpty. Operand 2736 states and 3401 transitions. [2020-10-26 20:37:34,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2020-10-26 20:37:34,606 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:37:34,607 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:37:34,607 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 20:37:34,607 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:37:34,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:37:34,608 INFO L82 PathProgramCache]: Analyzing trace with hash -1535693391, now seen corresponding path program 1 times [2020-10-26 20:37:34,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:37:34,608 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [346401798] [2020-10-26 20:37:34,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:37:34,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:34,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:34,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:35,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:36,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:36,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 315 [2020-10-26 20:37:36,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:37:36,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1337 [2020-10-26 20:37:36,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:36,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:36,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-26 20:37:36,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-26 20:37:36,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:36,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:36,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:36,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:36,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:36,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:36,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:36,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:37:36,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:36,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:36,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:36,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:36,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:36,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:36,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:36,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:36,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:36,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:37:36,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:36,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 20:37:36,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:36,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:36,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:36,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:36,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:36,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:37:36,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:36,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:36,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:36,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-26 20:37:36,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:36,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:37:36,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:36,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:36,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:36,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:36,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:36,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-26 20:37:36,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:36,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:36,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:36,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-26 20:37:36,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:36,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-26 20:37:36,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:36,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:36,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:36,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-26 20:37:36,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:36,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-26 20:37:36,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:36,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:36,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:36,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:37:36,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:36,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-26 20:37:36,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:36,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:36,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:36,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:37:36,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:36,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-26 20:37:36,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:36,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:36,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:36,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-26 20:37:36,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:36,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-26 20:37:36,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:36,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:36,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-26 20:37:36,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:36,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:36,501 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 210 proven. 14 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2020-10-26 20:37:36,501 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [346401798] [2020-10-26 20:37:36,501 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:37:36,501 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:37:36,502 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393983531] [2020-10-26 20:37:36,502 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:37:36,502 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:36,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:37:36,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:37:36,503 INFO L87 Difference]: Start difference. First operand 2736 states and 3401 transitions. Second operand 8 states. [2020-10-26 20:37:37,070 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-26 20:37:37,594 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-26 20:37:39,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:39,231 INFO L93 Difference]: Finished difference Result 5966 states and 7456 transitions. [2020-10-26 20:37:39,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:37:39,232 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 295 [2020-10-26 20:37:39,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:39,244 INFO L225 Difference]: With dead ends: 5966 [2020-10-26 20:37:39,244 INFO L226 Difference]: Without dead ends: 2337 [2020-10-26 20:37:39,252 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-26 20:37:39,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2337 states. [2020-10-26 20:37:39,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2337 to 2319. [2020-10-26 20:37:39,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2319 states. [2020-10-26 20:37:39,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2319 states to 2319 states and 2816 transitions. [2020-10-26 20:37:39,327 INFO L78 Accepts]: Start accepts. Automaton has 2319 states and 2816 transitions. Word has length 295 [2020-10-26 20:37:39,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:39,327 INFO L481 AbstractCegarLoop]: Abstraction has 2319 states and 2816 transitions. [2020-10-26 20:37:39,328 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:37:39,328 INFO L276 IsEmpty]: Start isEmpty. Operand 2319 states and 2816 transitions. [2020-10-26 20:37:39,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2020-10-26 20:37:39,337 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:37:39,338 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-10-26 20:37:39,338 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 20:37:39,338 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:37:39,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:37:39,339 INFO L82 PathProgramCache]: Analyzing trace with hash -161120686, now seen corresponding path program 1 times [2020-10-26 20:37:39,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:37:39,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1443533935] [2020-10-26 20:37:39,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:37:39,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:39,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:39,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:40,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:40,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 326 [2020-10-26 20:37:40,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:37:40,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 911 [2020-10-26 20:37:40,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:40,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:40,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 203 [2020-10-26 20:37:40,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-26 20:37:40,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:40,545 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:37:40,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:40,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:40,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:40,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:40,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:40,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:40,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:37:40,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:40,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:40,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:40,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:40,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:40,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:40,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:40,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:40,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:40,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-26 20:37:40,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:40,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:37:40,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:40,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:40,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:40,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:40,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:40,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 20:37:40,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:40,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:40,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:40,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:37:40,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:40,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:37:40,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:40,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:40,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:40,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:40,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:40,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-26 20:37:40,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:40,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:40,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:40,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:37:40,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:40,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:37:40,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:40,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:40,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:40,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:40,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:40,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-26 20:37:40,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:40,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:40,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:40,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:37:40,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:40,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:37:40,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:40,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:40,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:40,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:40,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:40,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-26 20:37:40,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:40,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:40,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:40,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-26 20:37:40,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:40,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-26 20:37:40,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:40,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:40,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:40,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-26 20:37:40,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:40,779 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 177 proven. 5 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2020-10-26 20:37:40,780 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1443533935] [2020-10-26 20:37:40,780 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:37:40,780 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:37:40,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154890806] [2020-10-26 20:37:40,781 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 20:37:40,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:40,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 20:37:40,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 20:37:40,782 INFO L87 Difference]: Start difference. First operand 2319 states and 2816 transitions. Second operand 5 states. [2020-10-26 20:37:42,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:42,144 INFO L93 Difference]: Finished difference Result 4986 states and 6125 transitions. [2020-10-26 20:37:42,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 20:37:42,146 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 306 [2020-10-26 20:37:42,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:42,148 INFO L225 Difference]: With dead ends: 4986 [2020-10-26 20:37:42,148 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 20:37:42,157 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:37:42,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 20:37:42,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 20:37:42,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 20:37:42,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 20:37:42,158 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 306 [2020-10-26 20:37:42,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:42,158 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 20:37:42,158 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 20:37:42,158 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 20:37:42,158 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 20:37:42,159 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-26 20:37:42,161 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 20:37:42,998 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 186 [2020-10-26 20:37:43,150 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 176 [2020-10-26 20:37:43,481 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 26 [2020-10-26 20:37:43,668 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 40 [2020-10-26 20:37:44,946 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 236 DAG size of output: 46 [2020-10-26 20:37:45,350 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 51 [2020-10-26 20:37:45,836 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 51 [2020-10-26 20:37:45,841 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-26 20:37:45,841 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-26 20:37:45,841 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-26 20:37:45,841 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-26 20:37:45,841 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:37:45,842 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= ~a21~0 |old(~a21~0)|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~a16~0 |old(~a16~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~y~0 |old(~y~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a17~0 |old(~a17~0)|) (= ~c~0 |old(~c~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-10-26 20:37:45,842 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:37:45,842 INFO L274 CegarLoopResult]: For program point L564-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,842 INFO L274 CegarLoopResult]: For program point L531-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,842 INFO L274 CegarLoopResult]: For program point L498-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,842 INFO L274 CegarLoopResult]: For program point L465-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,843 INFO L274 CegarLoopResult]: For program point L432-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,843 INFO L274 CegarLoopResult]: For program point L399-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,843 INFO L274 CegarLoopResult]: For program point L267(lines 267 392) no Hoare annotation was computed. [2020-10-26 20:37:45,843 INFO L274 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-26 20:37:45,843 INFO L274 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-26 20:37:45,843 INFO L274 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-26 20:37:45,843 INFO L274 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-26 20:37:45,844 INFO L274 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-26 20:37:45,844 INFO L274 CegarLoopResult]: For program point L400(line 400) no Hoare annotation was computed. [2020-10-26 20:37:45,844 INFO L274 CegarLoopResult]: For program point L367(lines 367 392) no Hoare annotation was computed. [2020-10-26 20:37:45,844 INFO L274 CegarLoopResult]: For program point L301(lines 301 392) no Hoare annotation was computed. [2020-10-26 20:37:45,844 INFO L274 CegarLoopResult]: For program point L37(lines 37 392) no Hoare annotation was computed. [2020-10-26 20:37:45,844 INFO L274 CegarLoopResult]: For program point L335(lines 335 392) no Hoare annotation was computed. [2020-10-26 20:37:45,844 INFO L274 CegarLoopResult]: For program point L104(lines 104 392) no Hoare annotation was computed. [2020-10-26 20:37:45,844 INFO L274 CegarLoopResult]: For program point L567-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,844 INFO L274 CegarLoopResult]: For program point L534-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,845 INFO L274 CegarLoopResult]: For program point L501-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,845 INFO L274 CegarLoopResult]: For program point L468-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,845 INFO L274 CegarLoopResult]: For program point L435-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,845 INFO L274 CegarLoopResult]: For program point L402-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,845 INFO L274 CegarLoopResult]: For program point L270(lines 270 392) no Hoare annotation was computed. [2020-10-26 20:37:45,845 INFO L274 CegarLoopResult]: For program point L138(lines 138 392) no Hoare annotation was computed. [2020-10-26 20:37:45,845 INFO L274 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-26 20:37:45,845 INFO L274 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-26 20:37:45,845 INFO L274 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-26 20:37:45,845 INFO L274 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-26 20:37:45,845 INFO L274 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-26 20:37:45,845 INFO L274 CegarLoopResult]: For program point L403(line 403) no Hoare annotation was computed. [2020-10-26 20:37:45,845 INFO L274 CegarLoopResult]: For program point L205(lines 205 392) no Hoare annotation was computed. [2020-10-26 20:37:45,845 INFO L274 CegarLoopResult]: For program point L74(lines 74 392) no Hoare annotation was computed. [2020-10-26 20:37:45,846 INFO L274 CegarLoopResult]: For program point L570-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,846 INFO L274 CegarLoopResult]: For program point L537-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,846 INFO L274 CegarLoopResult]: For program point L504-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,846 INFO L274 CegarLoopResult]: For program point L471-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,846 INFO L274 CegarLoopResult]: For program point L438-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,846 INFO L274 CegarLoopResult]: For program point L405-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,846 INFO L274 CegarLoopResult]: For program point L339(lines 339 392) no Hoare annotation was computed. [2020-10-26 20:37:45,846 INFO L274 CegarLoopResult]: For program point L240(lines 240 392) no Hoare annotation was computed. [2020-10-26 20:37:45,846 INFO L274 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-26 20:37:45,846 INFO L274 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-26 20:37:45,846 INFO L274 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-26 20:37:45,846 INFO L274 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-26 20:37:45,846 INFO L274 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-26 20:37:45,846 INFO L274 CegarLoopResult]: For program point L406(line 406) no Hoare annotation was computed. [2020-10-26 20:37:45,846 INFO L274 CegarLoopResult]: For program point L175(lines 175 392) no Hoare annotation was computed. [2020-10-26 20:37:45,847 INFO L274 CegarLoopResult]: For program point L142(lines 142 392) no Hoare annotation was computed. [2020-10-26 20:37:45,847 INFO L274 CegarLoopResult]: For program point L374(lines 374 392) no Hoare annotation was computed. [2020-10-26 20:37:45,847 INFO L274 CegarLoopResult]: For program point L308(lines 308 392) no Hoare annotation was computed. [2020-10-26 20:37:45,847 INFO L274 CegarLoopResult]: For program point L275(lines 275 392) no Hoare annotation was computed. [2020-10-26 20:37:45,847 INFO L274 CegarLoopResult]: For program point L110(lines 110 392) no Hoare annotation was computed. [2020-10-26 20:37:45,847 INFO L274 CegarLoopResult]: For program point L573-1(lines 573 575) no Hoare annotation was computed. [2020-10-26 20:37:45,847 INFO L274 CegarLoopResult]: For program point L540-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,847 INFO L274 CegarLoopResult]: For program point L507-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,847 INFO L274 CegarLoopResult]: For program point L474-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,847 INFO L274 CegarLoopResult]: For program point L441-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,847 INFO L274 CegarLoopResult]: For program point L408-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,847 INFO L274 CegarLoopResult]: For program point L210(lines 210 392) no Hoare annotation was computed. [2020-10-26 20:37:45,848 INFO L274 CegarLoopResult]: For program point L45(lines 45 392) no Hoare annotation was computed. [2020-10-26 20:37:45,848 INFO L274 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-26 20:37:45,848 INFO L274 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-26 20:37:45,848 INFO L274 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-26 20:37:45,848 INFO L274 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-26 20:37:45,848 INFO L274 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-26 20:37:45,848 INFO L274 CegarLoopResult]: For program point L409(line 409) no Hoare annotation was computed. [2020-10-26 20:37:45,848 INFO L274 CegarLoopResult]: For program point L146(lines 146 392) no Hoare annotation was computed. [2020-10-26 20:37:45,848 INFO L274 CegarLoopResult]: For program point L543-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,848 INFO L274 CegarLoopResult]: For program point L510-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,848 INFO L274 CegarLoopResult]: For program point L477-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,848 INFO L274 CegarLoopResult]: For program point L444-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,849 INFO L274 CegarLoopResult]: For program point L411-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,849 INFO L274 CegarLoopResult]: For program point L180(lines 180 392) no Hoare annotation was computed. [2020-10-26 20:37:45,849 INFO L274 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-26 20:37:45,849 INFO L274 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-26 20:37:45,849 INFO L274 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-26 20:37:45,849 INFO L274 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-26 20:37:45,849 INFO L274 CegarLoopResult]: For program point L412(line 412) no Hoare annotation was computed. [2020-10-26 20:37:45,849 INFO L274 CegarLoopResult]: For program point L379(lines 379 392) no Hoare annotation was computed. [2020-10-26 20:37:45,849 INFO L274 CegarLoopResult]: For program point L280(lines 280 392) no Hoare annotation was computed. [2020-10-26 20:37:45,849 INFO L274 CegarLoopResult]: For program point L247(lines 247 392) no Hoare annotation was computed. [2020-10-26 20:37:45,849 INFO L274 CegarLoopResult]: For program point L82(lines 82 392) no Hoare annotation was computed. [2020-10-26 20:37:45,850 INFO L274 CegarLoopResult]: For program point L347(lines 347 392) no Hoare annotation was computed. [2020-10-26 20:37:45,850 INFO L274 CegarLoopResult]: For program point L314(lines 314 392) no Hoare annotation was computed. [2020-10-26 20:37:45,850 INFO L274 CegarLoopResult]: For program point L116(lines 116 392) no Hoare annotation was computed. [2020-10-26 20:37:45,850 INFO L274 CegarLoopResult]: For program point L546-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,850 INFO L274 CegarLoopResult]: For program point L513-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,850 INFO L274 CegarLoopResult]: For program point L480-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,850 INFO L274 CegarLoopResult]: For program point L447-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,850 INFO L274 CegarLoopResult]: For program point L414-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,850 INFO L274 CegarLoopResult]: For program point L216(lines 216 392) no Hoare annotation was computed. [2020-10-26 20:37:45,850 INFO L274 CegarLoopResult]: For program point L150(lines 150 392) no Hoare annotation was computed. [2020-10-26 20:37:45,850 INFO L274 CegarLoopResult]: For program point L51(lines 51 392) no Hoare annotation was computed. [2020-10-26 20:37:45,850 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,850 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,850 INFO L274 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-26 20:37:45,850 INFO L274 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-26 20:37:45,850 INFO L274 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-26 20:37:45,850 INFO L274 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-26 20:37:45,851 INFO L274 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-26 20:37:45,851 INFO L274 CegarLoopResult]: For program point L86(lines 86 392) no Hoare annotation was computed. [2020-10-26 20:37:45,851 INFO L274 CegarLoopResult]: For program point L549-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,851 INFO L274 CegarLoopResult]: For program point L516-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,851 INFO L274 CegarLoopResult]: For program point L483-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,851 INFO L274 CegarLoopResult]: For program point L450-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,851 INFO L274 CegarLoopResult]: For program point L384(lines 384 392) no Hoare annotation was computed. [2020-10-26 20:37:45,851 INFO L274 CegarLoopResult]: For program point L417-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,851 INFO L274 CegarLoopResult]: For program point L318(lines 318 392) no Hoare annotation was computed. [2020-10-26 20:37:45,851 INFO L274 CegarLoopResult]: For program point L252(lines 252 392) no Hoare annotation was computed. [2020-10-26 20:37:45,851 INFO L274 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-26 20:37:45,851 INFO L274 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-26 20:37:45,852 INFO L274 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-26 20:37:45,852 INFO L274 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-26 20:37:45,852 INFO L274 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-26 20:37:45,852 INFO L274 CegarLoopResult]: For program point L220(lines 220 392) no Hoare annotation was computed. [2020-10-26 20:37:45,852 INFO L274 CegarLoopResult]: For program point L154(lines 154 392) no Hoare annotation was computed. [2020-10-26 20:37:45,852 INFO L274 CegarLoopResult]: For program point L121(lines 121 392) no Hoare annotation was computed. [2020-10-26 20:37:45,852 INFO L274 CegarLoopResult]: For program point L320(lines 320 392) no Hoare annotation was computed. [2020-10-26 20:37:45,852 INFO L274 CegarLoopResult]: For program point L188(lines 188 392) no Hoare annotation was computed. [2020-10-26 20:37:45,852 INFO L274 CegarLoopResult]: For program point L56(lines 56 392) no Hoare annotation was computed. [2020-10-26 20:37:45,852 INFO L274 CegarLoopResult]: For program point L552-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,852 INFO L274 CegarLoopResult]: For program point L519-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,852 INFO L274 CegarLoopResult]: For program point L486-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,852 INFO L274 CegarLoopResult]: For program point L453-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,852 INFO L274 CegarLoopResult]: For program point L420-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,852 INFO L274 CegarLoopResult]: For program point L288(lines 288 392) no Hoare annotation was computed. [2020-10-26 20:37:45,852 INFO L274 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-26 20:37:45,853 INFO L270 CegarLoopResult]: At program point L520(line 520) the Hoare annotation is: (let ((.cse0 (= 6 |old(~a16~0)|)) (.cse1 (not (= |old(~a21~0)| 1)))) (and (or .cse0 .cse1 (not (= 0 |old(~a17~0)|))) (or (= 4 |old(~a16~0)|) .cse0 .cse1) (or .cse0 (not (= |old(~a20~0)| |old(~a21~0)|)) .cse1 (= |old(~a7~0)| 1)) (= 14 |old(~a8~0)|))) [2020-10-26 20:37:45,853 INFO L274 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-26 20:37:45,853 INFO L274 CegarLoopResult]: For program point L520-1(line 520) no Hoare annotation was computed. [2020-10-26 20:37:45,853 INFO L274 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-26 20:37:45,853 INFO L274 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-26 20:37:45,853 INFO L274 CegarLoopResult]: For program point L355(lines 355 392) no Hoare annotation was computed. [2020-10-26 20:37:45,853 INFO L274 CegarLoopResult]: For program point L191(lines 191 392) no Hoare annotation was computed. [2020-10-26 20:37:45,853 INFO L274 CegarLoopResult]: For program point L555-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,853 INFO L274 CegarLoopResult]: For program point L522-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,853 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 32 577) the Hoare annotation is: (let ((.cse3 (= ~a7~0 |old(~a7~0)|)) (.cse4 (= ~a17~0 |old(~a17~0)|)) (.cse8 (= ~a21~0 1)) (.cse5 (= ~a20~0 |old(~a20~0)|)) (.cse6 (= ~a16~0 |old(~a16~0)|)) (.cse7 (= ~a8~0 |old(~a8~0)|))) (let ((.cse0 (= 6 |old(~a16~0)|)) (.cse1 (and .cse3 .cse4 .cse8 .cse5 .cse6 .cse7)) (.cse2 (not (= |old(~a21~0)| 1)))) (and (or .cse0 (not (= |old(~a20~0)| |old(~a21~0)|)) .cse1 .cse2 (= |old(~a7~0)| 1)) (or (and .cse3 .cse4 (= ~a21~0 |old(~a21~0)|) .cse5 .cse6 .cse7) (= 14 |old(~a8~0)|)) (or (= 4 |old(~a16~0)|) .cse0 (and .cse4 .cse3 .cse8 .cse5 .cse6 .cse7) .cse2) (or .cse0 .cse1 .cse2 (not (= 0 |old(~a17~0)|)))))) [2020-10-26 20:37:45,853 INFO L274 CegarLoopResult]: For program point L489-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,853 INFO L274 CegarLoopResult]: For program point L456-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,853 INFO L274 CegarLoopResult]: For program point L423-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,853 INFO L274 CegarLoopResult]: For program point L357(lines 357 392) no Hoare annotation was computed. [2020-10-26 20:37:45,854 INFO L274 CegarLoopResult]: For program point L258(lines 258 392) no Hoare annotation was computed. [2020-10-26 20:37:45,854 INFO L274 CegarLoopResult]: For program point L225(lines 225 392) no Hoare annotation was computed. [2020-10-26 20:37:45,854 INFO L274 CegarLoopResult]: For program point L126(lines 126 392) no Hoare annotation was computed. [2020-10-26 20:37:45,854 INFO L274 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-26 20:37:45,854 INFO L274 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-26 20:37:45,854 INFO L274 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-26 20:37:45,854 INFO L274 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-26 20:37:45,854 INFO L274 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-26 20:37:45,854 INFO L274 CegarLoopResult]: For program point L94(lines 94 392) no Hoare annotation was computed. [2020-10-26 20:37:45,854 INFO L274 CegarLoopResult]: For program point L326(lines 326 392) no Hoare annotation was computed. [2020-10-26 20:37:45,854 INFO L274 CegarLoopResult]: For program point L558-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,854 INFO L274 CegarLoopResult]: For program point L525-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,854 INFO L274 CegarLoopResult]: For program point L492-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,854 INFO L274 CegarLoopResult]: For program point L459-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,854 INFO L274 CegarLoopResult]: For program point L393(lines 393 395) no Hoare annotation was computed. [2020-10-26 20:37:45,854 INFO L274 CegarLoopResult]: For program point L426-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,854 INFO L274 CegarLoopResult]: For program point L393-2(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,854 INFO L274 CegarLoopResult]: For program point L294(lines 294 392) no Hoare annotation was computed. [2020-10-26 20:37:45,855 INFO L274 CegarLoopResult]: For program point L162(lines 162 392) no Hoare annotation was computed. [2020-10-26 20:37:45,855 INFO L274 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-26 20:37:45,855 INFO L274 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-26 20:37:45,855 INFO L274 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-26 20:37:45,855 INFO L274 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-26 20:37:45,855 INFO L274 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-26 20:37:45,855 INFO L274 CegarLoopResult]: For program point L394(line 394) no Hoare annotation was computed. [2020-10-26 20:37:45,855 INFO L274 CegarLoopResult]: For program point L196(lines 196 392) no Hoare annotation was computed. [2020-10-26 20:37:45,855 INFO L274 CegarLoopResult]: For program point L64(lines 64 392) no Hoare annotation was computed. [2020-10-26 20:37:45,855 INFO L274 CegarLoopResult]: For program point L263(lines 263 392) no Hoare annotation was computed. [2020-10-26 20:37:45,855 INFO L274 CegarLoopResult]: For program point L131(lines 131 392) no Hoare annotation was computed. [2020-10-26 20:37:45,855 INFO L274 CegarLoopResult]: For program point L561-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,855 INFO L274 CegarLoopResult]: For program point L528-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,855 INFO L274 CegarLoopResult]: For program point L495-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,855 INFO L274 CegarLoopResult]: For program point L462-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,855 INFO L274 CegarLoopResult]: For program point L429-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,855 INFO L274 CegarLoopResult]: For program point L363(lines 363 392) no Hoare annotation was computed. [2020-10-26 20:37:45,855 INFO L274 CegarLoopResult]: For program point L396-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:37:45,855 INFO L274 CegarLoopResult]: For program point L99(lines 99 392) no Hoare annotation was computed. [2020-10-26 20:37:45,856 INFO L274 CegarLoopResult]: For program point L33(lines 33 392) no Hoare annotation was computed. [2020-10-26 20:37:45,856 INFO L274 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-26 20:37:45,856 INFO L274 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-26 20:37:45,856 INFO L274 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-26 20:37:45,856 INFO L274 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-26 20:37:45,856 INFO L274 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-26 20:37:45,856 INFO L274 CegarLoopResult]: For program point L397(line 397) no Hoare annotation was computed. [2020-10-26 20:37:45,856 INFO L274 CegarLoopResult]: For program point L331(lines 331 392) no Hoare annotation was computed. [2020-10-26 20:37:45,856 INFO L274 CegarLoopResult]: For program point L199(lines 199 392) no Hoare annotation was computed. [2020-10-26 20:37:45,856 INFO L274 CegarLoopResult]: For program point L67(lines 67 392) no Hoare annotation was computed. [2020-10-26 20:37:45,856 INFO L274 CegarLoopResult]: For program point L365(lines 365 392) no Hoare annotation was computed. [2020-10-26 20:37:45,856 INFO L274 CegarLoopResult]: For program point L233(lines 233 392) no Hoare annotation was computed. [2020-10-26 20:37:45,856 INFO L274 CegarLoopResult]: For program point L167(lines 167 392) no Hoare annotation was computed. [2020-10-26 20:37:45,856 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:37:45,856 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a12~0 8) (= ~a8~0 15) (= ~a20~0 1) (= ~a21~0 ~a20~0) (= 5 ~a16~0) (= ~a7~0 0) (= ~a17~0 1)) [2020-10-26 20:37:45,856 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-26 20:37:45,856 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:37:45,857 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 579 596) the Hoare annotation is: (or (not (= |old(~a17~0)| 1)) (and (= ~a17~0 |old(~a17~0)|) (= ~a20~0 |old(~a20~0)|) (= ~a8~0 15) (= ~a21~0 ~a20~0) (= 5 ~a16~0) (= ~a7~0 0)) (not (= |old(~a20~0)| |old(~a21~0)|)) (not (= 5 |old(~a16~0)|)) (not (= |old(~a21~0)| 1)) (not (= 15 |old(~a8~0)|)) (not (= ~a12~0 8)) (not (= |old(~a7~0)| 0))) [2020-10-26 20:37:45,857 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 579 596) no Hoare annotation was computed. [2020-10-26 20:37:45,857 INFO L270 CegarLoopResult]: At program point L593(line 593) the Hoare annotation is: (let ((.cse0 (= ~a21~0 1)) (.cse1 (not (= ~a16~0 6)))) (or (not (= |old(~a17~0)| 1)) (and .cse0 .cse1 (not (= ~a16~0 4))) (and .cse0 .cse1 (= ~a21~0 ~a20~0) (not (= ~a7~0 1))) (and .cse0 .cse1 (= ~a17~0 0)) (not (= 14 ~a8~0)) (not (= |old(~a20~0)| |old(~a21~0)|)) (not (= 5 |old(~a16~0)|)) (not (= |old(~a21~0)| 1)) (not (= 15 |old(~a8~0)|)) (not (= |old(~a7~0)| 0)) (not (= ~a12~0 8)))) [2020-10-26 20:37:45,857 INFO L274 CegarLoopResult]: For program point L593-1(line 593) no Hoare annotation was computed. [2020-10-26 20:37:45,857 INFO L274 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-10-26 20:37:45,857 INFO L270 CegarLoopResult]: At program point L585-2(lines 585 595) the Hoare annotation is: (let ((.cse0 (= ~a21~0 1)) (.cse1 (not (= ~a16~0 6)))) (or (not (= |old(~a17~0)| 1)) (and .cse0 .cse1 (not (= ~a16~0 4))) (and .cse0 .cse1 (= ~a21~0 ~a20~0) (not (= ~a7~0 1))) (and .cse0 .cse1 (= ~a17~0 0)) (not (= 14 ~a8~0)) (not (= |old(~a20~0)| |old(~a21~0)|)) (not (= 5 |old(~a16~0)|)) (not (= |old(~a21~0)| 1)) (not (= 15 |old(~a8~0)|)) (not (= |old(~a7~0)| 0)) (not (= ~a12~0 8)))) [2020-10-26 20:37:45,857 INFO L274 CegarLoopResult]: For program point L585-3(lines 579 596) no Hoare annotation was computed. [2020-10-26 20:37:45,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 08:37:45 BoogieIcfgContainer [2020-10-26 20:37:45,878 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 20:37:45,880 INFO L168 Benchmark]: Toolchain (without parser) took 76244.55 ms. Allocated memory was 154.1 MB in the beginning and 994.1 MB in the end (delta: 839.9 MB). Free memory was 128.8 MB in the beginning and 563.7 MB in the end (delta: -434.9 MB). Peak memory consumption was 594.9 MB. Max. memory is 8.0 GB. [2020-10-26 20:37:45,880 INFO L168 Benchmark]: CDTParser took 0.61 ms. Allocated memory is still 125.8 MB. Free memory was 101.0 MB in the beginning and 100.9 MB in the end (delta: 71.7 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 20:37:45,881 INFO L168 Benchmark]: CACSL2BoogieTranslator took 774.69 ms. Allocated memory is still 154.1 MB. Free memory was 128.2 MB in the beginning and 131.7 MB in the end (delta: -3.6 MB). Peak memory consumption was 29.9 MB. Max. memory is 8.0 GB. [2020-10-26 20:37:45,882 INFO L168 Benchmark]: Boogie Preprocessor took 169.81 ms. Allocated memory is still 154.1 MB. Free memory was 131.7 MB in the beginning and 126.8 MB in the end (delta: 4.9 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-26 20:37:45,882 INFO L168 Benchmark]: RCFGBuilder took 1524.22 ms. Allocated memory is still 154.1 MB. Free memory was 126.8 MB in the beginning and 114.5 MB in the end (delta: 12.3 MB). Peak memory consumption was 49.5 MB. Max. memory is 8.0 GB. [2020-10-26 20:37:45,883 INFO L168 Benchmark]: TraceAbstraction took 73762.34 ms. Allocated memory was 154.1 MB in the beginning and 994.1 MB in the end (delta: 839.9 MB). Free memory was 114.0 MB in the beginning and 563.7 MB in the end (delta: -449.7 MB). Peak memory consumption was 580.0 MB. Max. memory is 8.0 GB. [2020-10-26 20:37:45,886 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61 ms. Allocated memory is still 125.8 MB. Free memory was 101.0 MB in the beginning and 100.9 MB in the end (delta: 71.7 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 774.69 ms. Allocated memory is still 154.1 MB. Free memory was 128.2 MB in the beginning and 131.7 MB in the end (delta: -3.6 MB). Peak memory consumption was 29.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 169.81 ms. Allocated memory is still 154.1 MB. Free memory was 131.7 MB in the beginning and 126.8 MB in the end (delta: 4.9 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1524.22 ms. Allocated memory is still 154.1 MB. Free memory was 126.8 MB in the beginning and 114.5 MB in the end (delta: 12.3 MB). Peak memory consumption was 49.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 73762.34 ms. Allocated memory was 154.1 MB in the beginning and 994.1 MB in the end (delta: 839.9 MB). Free memory was 114.0 MB in the beginning and 563.7 MB in the end (delta: -449.7 MB). Peak memory consumption was 580.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: (((((((((!(\old(a17) == 1) || ((a21 == 1 && !(a16 == 6)) && !(a16 == 4))) || (((a21 == 1 && !(a16 == 6)) && a21 == a20) && !(a7 == 1))) || ((a21 == 1 && !(a16 == 6)) && a17 == 0)) || !(14 == a8)) || !(\old(a20) == \old(a21))) || !(5 == \old(a16))) || !(\old(a21) == 1)) || !(15 == \old(a8))) || !(\old(a7) == 0)) || !(a12 == 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 211 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 69.9s, OverallIterations: 11, TraceHistogramMax: 7, AutomataDifference: 28.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 313 SDtfs, 5778 SDslu, 534 SDs, 0 SdLazy, 11440 SolverSat, 1915 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 270 GetRequests, 134 SyntacticMatches, 2 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 9.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2736occurred in iteration=9, 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, 11 MinimizatonAttempts, 795 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 295 PreInvPairs, 349 NumberOfFragments, 463 HoareAnnotationTreeSize, 295 FomulaSimplifications, 5813 FormulaSimplificationTreeSizeReduction, 0.9s HoareSimplificationTime, 9 FomulaSimplificationsInter, 7476 FormulaSimplificationTreeSizeReductionInter, 2.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 38.8s InterpolantComputationTime, 2408 NumberOfCodeBlocks, 2408 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 2397 ConstructedInterpolants, 0 QuantifiedInterpolants, 2111328 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 1 PerfectInterpolantSequences, 1990/2282 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...