/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem11_label14.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 12:03:50,927 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 12:03:50,930 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 12:03:50,967 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 12:03:50,968 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 12:03:50,969 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 12:03:50,971 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 12:03:50,973 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 12:03:50,975 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 12:03:50,977 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 12:03:50,999 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 12:03:51,000 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 12:03:51,001 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 12:03:51,005 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 12:03:51,007 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 12:03:51,008 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 12:03:51,019 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 12:03:51,022 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 12:03:51,024 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 12:03:51,029 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 12:03:51,033 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 12:03:51,035 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 12:03:51,036 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 12:03:51,037 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 12:03:51,040 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 12:03:51,040 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 12:03:51,040 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 12:03:51,041 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 12:03:51,042 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 12:03:51,043 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 12:03:51,043 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 12:03:51,044 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 12:03:51,045 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 12:03:51,046 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 12:03:51,047 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 12:03:51,047 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 12:03:51,048 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 12:03:51,048 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 12:03:51,049 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 12:03:51,050 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 12:03:51,050 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 12:03:51,051 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-28 12:03:51,079 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 12:03:51,079 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 12:03:51,081 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 12:03:51,081 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 12:03:51,081 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 12:03:51,081 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 12:03:51,081 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 12:03:51,082 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 12:03:51,082 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 12:03:51,082 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 12:03:51,082 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 12:03:51,082 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 12:03:51,082 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 12:03:51,083 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 12:03:51,083 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 12:03:51,083 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 12:03:51,083 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 12:03:51,083 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 12:03:51,084 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 12:03:51,084 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 12:03:51,084 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 12:03:51,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 12:03:51,084 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 12:03:51,085 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 12:03:51,085 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 12:03:51,085 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 12:03:51,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 12:03:51,085 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 12:03:51,085 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 12:03:51,086 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 12:03:51,474 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 12:03:51,506 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 12:03:51,509 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 12:03:51,510 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 12:03:51,511 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 12:03:51,512 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label14.c [2020-10-28 12:03:51,592 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e0144a830/82e6cb780cfa4fae811834b45c299c17/FLAG4d247967e [2020-10-28 12:03:52,331 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 12:03:52,332 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem11_label14.c [2020-10-28 12:03:52,350 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e0144a830/82e6cb780cfa4fae811834b45c299c17/FLAG4d247967e [2020-10-28 12:03:52,493 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e0144a830/82e6cb780cfa4fae811834b45c299c17 [2020-10-28 12:03:52,496 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 12:03:52,503 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 12:03:52,504 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 12:03:52,504 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 12:03:52,508 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 12:03:52,510 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 12:03:52" (1/1) ... [2020-10-28 12:03:52,520 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fcb6a42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:03:52, skipping insertion in model container [2020-10-28 12:03:52,521 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 12:03:52" (1/1) ... [2020-10-28 12:03:52,532 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 12:03:52,591 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 12:03:53,166 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 12:03:53,188 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 12:03:53,525 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 12:03:53,548 INFO L208 MainTranslator]: Completed translation [2020-10-28 12:03:53,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:03:53 WrapperNode [2020-10-28 12:03:53,551 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 12:03:53,552 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 12:03:53,552 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 12:03:53,552 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 12:03:53,568 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:03:53" (1/1) ... [2020-10-28 12:03:53,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:03:53" (1/1) ... [2020-10-28 12:03:53,615 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:03:53" (1/1) ... [2020-10-28 12:03:53,616 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:03:53" (1/1) ... [2020-10-28 12:03:53,695 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:03:53" (1/1) ... [2020-10-28 12:03:53,709 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:03:53" (1/1) ... [2020-10-28 12:03:53,722 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:03:53" (1/1) ... [2020-10-28 12:03:53,741 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 12:03:53,742 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 12:03:53,742 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 12:03:53,742 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 12:03:53,743 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:03:53" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 12:03:53,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 12:03:53,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 12:03:53,829 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 12:03:53,829 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-28 12:03:53,829 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 12:03:53,829 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-28 12:03:53,829 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 12:03:53,830 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 12:03:53,830 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 12:03:53,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 12:03:53,830 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 12:03:53,830 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-28 12:03:53,830 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 12:03:53,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 12:03:53,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 12:03:53,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 12:03:53,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 12:03:53,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 12:03:53,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 12:03:56,172 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 12:03:56,173 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 12:03:56,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 12:03:56 BoogieIcfgContainer [2020-10-28 12:03:56,176 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 12:03:56,178 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 12:03:56,178 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 12:03:56,182 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 12:03:56,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 12:03:52" (1/3) ... [2020-10-28 12:03:56,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b6e7c34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 12:03:56, skipping insertion in model container [2020-10-28 12:03:56,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:03:53" (2/3) ... [2020-10-28 12:03:56,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b6e7c34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 12:03:56, skipping insertion in model container [2020-10-28 12:03:56,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 12:03:56" (3/3) ... [2020-10-28 12:03:56,187 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label14.c [2020-10-28 12:03:56,200 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 12:03:56,206 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 12:03:56,222 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 12:03:56,255 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 12:03:56,255 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 12:03:56,256 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 12:03:56,256 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 12:03:56,256 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 12:03:56,256 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 12:03:56,256 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 12:03:56,256 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 12:03:56,282 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states. [2020-10-28 12:03:56,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-28 12:03:56,290 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:03:56,291 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] [2020-10-28 12:03:56,291 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:03:56,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:03:56,298 INFO L82 PathProgramCache]: Analyzing trace with hash -1944381794, now seen corresponding path program 1 times [2020-10-28 12:03:56,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:03:56,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1477424774] [2020-10-28 12:03:56,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:03:56,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:03:56,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:57,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:03:57,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 12:03:57,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:03:57,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 572 [2020-10-28 12:03:57,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:03:57,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:03:57,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:03:57,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:03:57,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-28 12:03:57,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 12:03:57,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:03:57,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:03:57,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:03:57,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:03:57,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:03:57,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:03:57,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 12:03:57,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:03:57,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:03:57,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:03:57,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:03:57,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:03:57,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:03:57,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:03:57,382 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1477424774] [2020-10-28 12:03:57,384 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:03:57,385 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 12:03:57,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132742370] [2020-10-28 12:03:57,391 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 12:03:57,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:03:57,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 12:03:57,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 12:03:57,411 INFO L87 Difference]: Start difference. First operand 296 states. Second operand 4 states. [2020-10-28 12:04:00,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:04:00,766 INFO L93 Difference]: Finished difference Result 811 states and 1410 transitions. [2020-10-28 12:04:00,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:04:00,769 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2020-10-28 12:04:00,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:04:00,788 INFO L225 Difference]: With dead ends: 811 [2020-10-28 12:04:00,789 INFO L226 Difference]: Without dead ends: 435 [2020-10-28 12:04:00,799 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:04:00,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2020-10-28 12:04:00,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 429. [2020-10-28 12:04:00,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 429 states. [2020-10-28 12:04:00,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 618 transitions. [2020-10-28 12:04:00,897 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 618 transitions. Word has length 23 [2020-10-28 12:04:00,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:04:00,898 INFO L481 AbstractCegarLoop]: Abstraction has 429 states and 618 transitions. [2020-10-28 12:04:00,898 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 12:04:00,898 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 618 transitions. [2020-10-28 12:04:00,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-28 12:04:00,903 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:04:00,903 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:04:00,903 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 12:04:00,904 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:04:00,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:04:00,905 INFO L82 PathProgramCache]: Analyzing trace with hash -1325780861, now seen corresponding path program 1 times [2020-10-28 12:04:00,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:04:00,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1608499522] [2020-10-28 12:04:00,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:04:00,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:01,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:01,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:02,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:02,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-28 12:04:02,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:04:02,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1118 [2020-10-28 12:04:02,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:02,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:02,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:04:02,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:04:02,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-28 12:04:02,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:04:02,261 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-10-28 12:04:02,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:04:02,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:02,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:02,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:02,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:04:02,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:04:02,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 12:04:02,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:02,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:02,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:04:02,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:04:02,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:04:02,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:04:02,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:04:02,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:02,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:02,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:02,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 12:04:02,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:04:02,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 212 [2020-10-28 12:04:02,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:02,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:02,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:04:02,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:04:02,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-28 12:04:02,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 12:04:02,687 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:04:02,687 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1608499522] [2020-10-28 12:04:02,688 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:04:02,688 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 12:04:02,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296020934] [2020-10-28 12:04:02,690 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 12:04:02,691 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:04:02,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 12:04:02,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:04:02,697 INFO L87 Difference]: Start difference. First operand 429 states and 618 transitions. Second operand 8 states. [2020-10-28 12:04:07,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:04:07,493 INFO L93 Difference]: Finished difference Result 1663 states and 2474 transitions. [2020-10-28 12:04:07,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 12:04:07,494 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 95 [2020-10-28 12:04:07,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:04:07,509 INFO L225 Difference]: With dead ends: 1663 [2020-10-28 12:04:07,510 INFO L226 Difference]: Without dead ends: 1240 [2020-10-28 12:04:07,513 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-28 12:04:07,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1240 states. [2020-10-28 12:04:07,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1240 to 1204. [2020-10-28 12:04:07,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1204 states. [2020-10-28 12:04:07,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1204 states to 1204 states and 1689 transitions. [2020-10-28 12:04:07,626 INFO L78 Accepts]: Start accepts. Automaton has 1204 states and 1689 transitions. Word has length 95 [2020-10-28 12:04:07,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:04:07,627 INFO L481 AbstractCegarLoop]: Abstraction has 1204 states and 1689 transitions. [2020-10-28 12:04:07,627 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 12:04:07,627 INFO L276 IsEmpty]: Start isEmpty. Operand 1204 states and 1689 transitions. [2020-10-28 12:04:07,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-28 12:04:07,629 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:04:07,630 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-28 12:04:07,630 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 12:04:07,630 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:04:07,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:04:07,631 INFO L82 PathProgramCache]: Analyzing trace with hash 164036353, now seen corresponding path program 1 times [2020-10-28 12:04:07,631 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:04:07,631 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1190543186] [2020-10-28 12:04:07,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:04:07,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:07,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:07,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:09,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:09,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-28 12:04:09,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:04:09,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1444 [2020-10-28 12:04:09,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:09,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:09,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:04:09,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:04:09,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 12:04:09,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:04:09,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:04:09,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:09,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:09,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:09,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:04:09,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:04:09,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 12:04:09,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:09,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:09,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:04:09,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:04:09,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:04:09,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:04:09,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:04:09,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:09,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:09,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:09,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-28 12:04:09,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:04:09,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-10-28 12:04:09,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:09,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:09,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:04:09,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:04:09,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 12:04:09,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:04:09,801 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:04:09,802 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1190543186] [2020-10-28 12:04:09,802 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:04:09,802 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 12:04:09,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144328046] [2020-10-28 12:04:09,803 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:04:09,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:04:09,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:04:09,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:04:09,806 INFO L87 Difference]: Start difference. First operand 1204 states and 1689 transitions. Second operand 7 states. [2020-10-28 12:04:12,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:04:12,894 INFO L93 Difference]: Finished difference Result 2811 states and 3904 transitions. [2020-10-28 12:04:12,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 12:04:12,895 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 96 [2020-10-28 12:04:12,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:04:12,905 INFO L225 Difference]: With dead ends: 2811 [2020-10-28 12:04:12,906 INFO L226 Difference]: Without dead ends: 1613 [2020-10-28 12:04:12,910 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-28 12:04:12,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1613 states. [2020-10-28 12:04:12,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1613 to 1604. [2020-10-28 12:04:12,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1604 states. [2020-10-28 12:04:12,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2134 transitions. [2020-10-28 12:04:12,972 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2134 transitions. Word has length 96 [2020-10-28 12:04:12,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:04:12,972 INFO L481 AbstractCegarLoop]: Abstraction has 1604 states and 2134 transitions. [2020-10-28 12:04:12,973 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:04:12,973 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2134 transitions. [2020-10-28 12:04:12,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-10-28 12:04:12,976 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:04:12,976 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:04:12,976 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 12:04:12,976 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:04:12,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:04:12,977 INFO L82 PathProgramCache]: Analyzing trace with hash -1522032855, now seen corresponding path program 1 times [2020-10-28 12:04:12,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:04:12,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [446570569] [2020-10-28 12:04:12,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:04:13,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:13,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:13,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:14,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:14,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-28 12:04:14,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:04:14,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1035 [2020-10-28 12:04:14,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:14,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:14,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:04:14,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-28 12:04:14,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 12:04:14,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:04:14,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:04:14,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:14,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:14,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:14,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:04:14,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:04:14,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 12:04:14,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:14,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:14,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:04:14,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:04:14,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:04:14,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:04:14,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:04:14,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:14,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:14,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:14,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-28 12:04:14,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:04:14,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-10-28 12:04:14,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:14,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:14,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:04:14,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:04:14,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-28 12:04:14,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:04:14,533 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:04:14,538 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [446570569] [2020-10-28 12:04:14,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:04:14,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-28 12:04:14,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760706473] [2020-10-28 12:04:14,540 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 12:04:14,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:04:14,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 12:04:14,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-28 12:04:14,548 INFO L87 Difference]: Start difference. First operand 1604 states and 2134 transitions. Second operand 6 states. [2020-10-28 12:04:18,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:04:18,522 INFO L93 Difference]: Finished difference Result 3622 states and 5074 transitions. [2020-10-28 12:04:18,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 12:04:18,523 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 139 [2020-10-28 12:04:18,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:04:18,539 INFO L225 Difference]: With dead ends: 3622 [2020-10-28 12:04:18,539 INFO L226 Difference]: Without dead ends: 2402 [2020-10-28 12:04:18,544 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:04:18,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2402 states. [2020-10-28 12:04:18,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2402 to 2382. [2020-10-28 12:04:18,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2382 states. [2020-10-28 12:04:18,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2382 states to 2382 states and 3152 transitions. [2020-10-28 12:04:18,627 INFO L78 Accepts]: Start accepts. Automaton has 2382 states and 3152 transitions. Word has length 139 [2020-10-28 12:04:18,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:04:18,628 INFO L481 AbstractCegarLoop]: Abstraction has 2382 states and 3152 transitions. [2020-10-28 12:04:18,628 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 12:04:18,629 INFO L276 IsEmpty]: Start isEmpty. Operand 2382 states and 3152 transitions. [2020-10-28 12:04:18,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-28 12:04:18,632 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:04:18,632 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:04:18,632 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 12:04:18,632 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:04:18,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:04:18,633 INFO L82 PathProgramCache]: Analyzing trace with hash -1000137400, now seen corresponding path program 1 times [2020-10-28 12:04:18,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:04:18,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2048064473] [2020-10-28 12:04:18,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:04:18,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:18,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:18,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:19,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:20,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:20,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:20,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:20,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-28 12:04:20,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 12:04:20,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2193 [2020-10-28 12:04:20,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:20,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:20,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:04:20,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 139 [2020-10-28 12:04:20,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:04:20,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:04:20,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:04:20,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:20,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:20,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:20,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:04:20,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:04:20,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 12:04:20,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:20,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:20,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:04:20,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:04:20,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:04:20,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:04:20,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:04:21,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:21,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:21,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:21,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-28 12:04:21,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:04:21,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-10-28 12:04:21,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:21,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:21,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:04:21,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-10-28 12:04:21,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:04:21,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:04:21,317 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:04:21,318 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2048064473] [2020-10-28 12:04:21,318 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:04:21,318 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 12:04:21,319 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268935374] [2020-10-28 12:04:21,319 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 12:04:21,319 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:04:21,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 12:04:21,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:04:21,320 INFO L87 Difference]: Start difference. First operand 2382 states and 3152 transitions. Second operand 5 states. [2020-10-28 12:04:24,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:04:24,034 INFO L93 Difference]: Finished difference Result 6104 states and 8449 transitions. [2020-10-28 12:04:24,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:04:24,035 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 154 [2020-10-28 12:04:24,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:04:24,059 INFO L225 Difference]: With dead ends: 6104 [2020-10-28 12:04:24,059 INFO L226 Difference]: Without dead ends: 4106 [2020-10-28 12:04:24,067 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 12:04:24,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4106 states. [2020-10-28 12:04:24,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4106 to 3538. [2020-10-28 12:04:24,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3538 states. [2020-10-28 12:04:24,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3538 states to 3538 states and 4593 transitions. [2020-10-28 12:04:24,197 INFO L78 Accepts]: Start accepts. Automaton has 3538 states and 4593 transitions. Word has length 154 [2020-10-28 12:04:24,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:04:24,197 INFO L481 AbstractCegarLoop]: Abstraction has 3538 states and 4593 transitions. [2020-10-28 12:04:24,198 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 12:04:24,198 INFO L276 IsEmpty]: Start isEmpty. Operand 3538 states and 4593 transitions. [2020-10-28 12:04:24,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-10-28 12:04:24,201 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:04:24,201 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:04:24,201 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 12:04:24,201 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:04:24,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:04:24,202 INFO L82 PathProgramCache]: Analyzing trace with hash 277455711, now seen corresponding path program 1 times [2020-10-28 12:04:24,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:04:24,203 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1830074336] [2020-10-28 12:04:24,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:04:24,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:24,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:24,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:25,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:25,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-10-28 12:04:25,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:04:25,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1026 [2020-10-28 12:04:25,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:25,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:25,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:04:25,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-10-28 12:04:25,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 12:04:25,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:04:25,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:04:25,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:25,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:25,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:25,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:04:25,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:04:25,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 12:04:25,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:25,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:25,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:04:25,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:04:25,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:04:25,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:04:25,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:04:25,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:25,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:25,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:25,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-28 12:04:25,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:04:25,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-10-28 12:04:25,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:25,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:25,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:04:25,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:04:25,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-28 12:04:25,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:04:25,799 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:04:25,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1830074336] [2020-10-28 12:04:25,801 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:04:25,801 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 12:04:25,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965501858] [2020-10-28 12:04:25,802 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 12:04:25,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:04:25,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 12:04:25,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:04:25,804 INFO L87 Difference]: Start difference. First operand 3538 states and 4593 transitions. Second operand 5 states. [2020-10-28 12:04:28,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:04:28,525 INFO L93 Difference]: Finished difference Result 8024 states and 10502 transitions. [2020-10-28 12:04:28,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:04:28,529 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 170 [2020-10-28 12:04:28,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:04:28,560 INFO L225 Difference]: With dead ends: 8024 [2020-10-28 12:04:28,560 INFO L226 Difference]: Without dead ends: 4870 [2020-10-28 12:04:28,571 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 12:04:28,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4870 states. [2020-10-28 12:04:28,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4870 to 4674. [2020-10-28 12:04:28,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4674 states. [2020-10-28 12:04:28,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4674 states to 4674 states and 6035 transitions. [2020-10-28 12:04:28,776 INFO L78 Accepts]: Start accepts. Automaton has 4674 states and 6035 transitions. Word has length 170 [2020-10-28 12:04:28,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:04:28,777 INFO L481 AbstractCegarLoop]: Abstraction has 4674 states and 6035 transitions. [2020-10-28 12:04:28,777 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 12:04:28,777 INFO L276 IsEmpty]: Start isEmpty. Operand 4674 states and 6035 transitions. [2020-10-28 12:04:28,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-10-28 12:04:28,781 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:04:28,781 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:04:28,781 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 12:04:28,782 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:04:28,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:04:28,782 INFO L82 PathProgramCache]: Analyzing trace with hash 1103805142, now seen corresponding path program 1 times [2020-10-28 12:04:28,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:04:28,783 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2009675619] [2020-10-28 12:04:28,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:04:28,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:28,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:28,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:30,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:31,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:31,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-28 12:04:31,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:04:31,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2593 [2020-10-28 12:04:31,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:31,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:31,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:04:31,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-28 12:04:31,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-28 12:04:31,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:04:31,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:04:31,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:31,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:31,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:31,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:04:31,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:04:31,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 12:04:31,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:31,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:31,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:04:31,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:04:31,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:04:31,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:04:31,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:04:31,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:31,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:31,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:31,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-28 12:04:31,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:04:31,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 209 [2020-10-28 12:04:31,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:31,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:31,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:04:31,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:04:31,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-28 12:04:31,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:04:31,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-28 12:04:32,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:32,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:32,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:32,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-28 12:04:32,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:04:32,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-10-28 12:04:32,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:32,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:32,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:04:32,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:04:32,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 12:04:32,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:04:32,540 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 100 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 12:04:32,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2009675619] [2020-10-28 12:04:32,541 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:04:32,541 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:04:32,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816271935] [2020-10-28 12:04:32,542 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:04:32,542 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:04:32,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:04:32,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:04:32,544 INFO L87 Difference]: Start difference. First operand 4674 states and 6035 transitions. Second operand 7 states. [2020-10-28 12:04:36,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:04:36,138 INFO L93 Difference]: Finished difference Result 9545 states and 12382 transitions. [2020-10-28 12:04:36,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:04:36,140 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 212 [2020-10-28 12:04:36,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:04:36,169 INFO L225 Difference]: With dead ends: 9545 [2020-10-28 12:04:36,169 INFO L226 Difference]: Without dead ends: 5255 [2020-10-28 12:04:36,184 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:04:36,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5255 states. [2020-10-28 12:04:36,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5255 to 5062. [2020-10-28 12:04:36,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5062 states. [2020-10-28 12:04:36,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5062 states to 5062 states and 6495 transitions. [2020-10-28 12:04:36,390 INFO L78 Accepts]: Start accepts. Automaton has 5062 states and 6495 transitions. Word has length 212 [2020-10-28 12:04:36,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:04:36,391 INFO L481 AbstractCegarLoop]: Abstraction has 5062 states and 6495 transitions. [2020-10-28 12:04:36,391 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:04:36,391 INFO L276 IsEmpty]: Start isEmpty. Operand 5062 states and 6495 transitions. [2020-10-28 12:04:36,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-10-28 12:04:36,396 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:04:36,396 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:04:36,397 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 12:04:36,397 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:04:36,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:04:36,398 INFO L82 PathProgramCache]: Analyzing trace with hash -1150704510, now seen corresponding path program 1 times [2020-10-28 12:04:36,398 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:04:36,398 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [159672705] [2020-10-28 12:04:36,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:04:36,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:36,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:36,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:37,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:38,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:38,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-10-28 12:04:38,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:04:38,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2123 [2020-10-28 12:04:38,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:38,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:38,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:04:38,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-28 12:04:38,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-28 12:04:38,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:04:38,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:04:38,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:38,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:38,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:38,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:04:38,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:04:38,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 12:04:38,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:38,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:38,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:04:38,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:04:38,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:04:38,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:04:38,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:04:38,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:38,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:38,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:38,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-28 12:04:38,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:04:38,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-10-28 12:04:38,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:38,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:38,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:04:38,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:04:38,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-10-28 12:04:38,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:04:39,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-28 12:04:39,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:39,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:39,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:39,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-28 12:04:39,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:04:39,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 232 [2020-10-28 12:04:39,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:39,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:39,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:04:39,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:04:39,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 12:04:39,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:04:39,482 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 100 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 12:04:39,482 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [159672705] [2020-10-28 12:04:39,483 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:04:39,483 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:04:39,483 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027104505] [2020-10-28 12:04:39,484 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:04:39,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:04:39,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:04:39,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:04:39,485 INFO L87 Difference]: Start difference. First operand 5062 states and 6495 transitions. Second operand 7 states. [2020-10-28 12:04:43,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:04:43,125 INFO L93 Difference]: Finished difference Result 10722 states and 13948 transitions. [2020-10-28 12:04:43,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:04:43,126 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 222 [2020-10-28 12:04:43,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:04:43,172 INFO L225 Difference]: With dead ends: 10722 [2020-10-28 12:04:43,172 INFO L226 Difference]: Without dead ends: 6044 [2020-10-28 12:04:43,186 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:04:43,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6044 states. [2020-10-28 12:04:43,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6044 to 5657. [2020-10-28 12:04:43,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5657 states. [2020-10-28 12:04:43,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5657 states to 5657 states and 7343 transitions. [2020-10-28 12:04:43,378 INFO L78 Accepts]: Start accepts. Automaton has 5657 states and 7343 transitions. Word has length 222 [2020-10-28 12:04:43,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:04:43,379 INFO L481 AbstractCegarLoop]: Abstraction has 5657 states and 7343 transitions. [2020-10-28 12:04:43,380 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:04:43,380 INFO L276 IsEmpty]: Start isEmpty. Operand 5657 states and 7343 transitions. [2020-10-28 12:04:43,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-10-28 12:04:43,385 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:04:43,385 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:04:43,385 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 12:04:43,386 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:04:43,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:04:43,386 INFO L82 PathProgramCache]: Analyzing trace with hash 1578300301, now seen corresponding path program 1 times [2020-10-28 12:04:43,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:04:43,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [582235188] [2020-10-28 12:04:43,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:04:43,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:43,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:43,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:44,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:44,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 237 [2020-10-28 12:04:44,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:04:44,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1473 [2020-10-28 12:04:44,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:44,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:44,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:04:44,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-28 12:04:44,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-28 12:04:44,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:04:45,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:04:45,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:45,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:45,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:45,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:04:45,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:04:45,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 12:04:45,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:45,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:45,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:04:45,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:04:45,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:04:45,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:04:45,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:04:45,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:45,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:45,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:45,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-28 12:04:45,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:04:45,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-28 12:04:45,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:45,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:45,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:04:45,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:04:45,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-28 12:04:45,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:04:45,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-28 12:04:45,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:45,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:45,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:45,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-28 12:04:45,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:04:45,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-10-28 12:04:45,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:45,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:45,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:04:45,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:04:45,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-28 12:04:45,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:04:45,586 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 96 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 12:04:45,587 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [582235188] [2020-10-28 12:04:45,587 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:04:45,587 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:04:45,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789539567] [2020-10-28 12:04:45,594 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:04:45,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:04:45,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:04:45,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:04:45,596 INFO L87 Difference]: Start difference. First operand 5657 states and 7343 transitions. Second operand 7 states. [2020-10-28 12:04:50,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:04:50,096 INFO L93 Difference]: Finished difference Result 13257 states and 17715 transitions. [2020-10-28 12:04:50,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:04:50,097 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 223 [2020-10-28 12:04:50,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:04:50,127 INFO L225 Difference]: With dead ends: 13257 [2020-10-28 12:04:50,127 INFO L226 Difference]: Without dead ends: 7984 [2020-10-28 12:04:50,143 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:04:50,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7984 states. [2020-10-28 12:04:50,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7984 to 7790. [2020-10-28 12:04:50,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7790 states. [2020-10-28 12:04:50,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7790 states to 7790 states and 9987 transitions. [2020-10-28 12:04:50,359 INFO L78 Accepts]: Start accepts. Automaton has 7790 states and 9987 transitions. Word has length 223 [2020-10-28 12:04:50,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:04:50,359 INFO L481 AbstractCegarLoop]: Abstraction has 7790 states and 9987 transitions. [2020-10-28 12:04:50,359 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:04:50,360 INFO L276 IsEmpty]: Start isEmpty. Operand 7790 states and 9987 transitions. [2020-10-28 12:04:50,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2020-10-28 12:04:50,364 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:04:50,364 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:04:50,364 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 12:04:50,365 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:04:50,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:04:50,365 INFO L82 PathProgramCache]: Analyzing trace with hash -959535339, now seen corresponding path program 1 times [2020-10-28 12:04:50,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:04:50,366 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [473038330] [2020-10-28 12:04:50,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:04:50,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:50,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:50,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:51,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:51,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 241 [2020-10-28 12:04:51,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:04:51,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1403 [2020-10-28 12:04:51,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:51,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:51,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:04:51,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-28 12:04:51,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-28 12:04:51,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:04:51,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:04:51,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:51,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:51,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:51,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:04:51,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:04:51,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 12:04:51,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:51,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:51,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:04:51,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:04:51,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:04:51,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:04:51,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:04:52,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:52,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:52,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:52,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-28 12:04:52,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:04:52,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-28 12:04:52,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:52,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:52,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:04:52,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:04:52,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-28 12:04:52,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:04:52,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-28 12:04:52,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:52,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:52,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:04:52,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-28 12:04:52,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:04:52,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-28 12:04:52,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:04:52,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:04:52,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:04:52,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:04:52,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 12:04:52,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:04:52,510 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 100 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 12:04:52,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [473038330] [2020-10-28 12:04:52,511 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:04:52,511 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:04:52,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952845946] [2020-10-28 12:04:52,512 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:04:52,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:04:52,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:04:52,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:04:52,513 INFO L87 Difference]: Start difference. First operand 7790 states and 9987 transitions. Second operand 7 states. [2020-10-28 12:04:57,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:04:57,245 INFO L93 Difference]: Finished difference Result 17116 states and 21990 transitions. [2020-10-28 12:04:57,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:04:57,247 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 227 [2020-10-28 12:04:57,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:04:57,281 INFO L225 Difference]: With dead ends: 17116 [2020-10-28 12:04:57,281 INFO L226 Difference]: Without dead ends: 9710 [2020-10-28 12:04:57,300 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:04:57,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9710 states. [2020-10-28 12:04:57,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9710 to 8758. [2020-10-28 12:04:57,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8758 states. [2020-10-28 12:04:57,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8758 states to 8758 states and 11159 transitions. [2020-10-28 12:04:57,553 INFO L78 Accepts]: Start accepts. Automaton has 8758 states and 11159 transitions. Word has length 227 [2020-10-28 12:04:57,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:04:57,554 INFO L481 AbstractCegarLoop]: Abstraction has 8758 states and 11159 transitions. [2020-10-28 12:04:57,554 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:04:57,554 INFO L276 IsEmpty]: Start isEmpty. Operand 8758 states and 11159 transitions. [2020-10-28 12:04:57,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2020-10-28 12:04:57,560 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:04:57,560 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:04:57,560 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 12:04:57,561 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:04:57,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:04:57,561 INFO L82 PathProgramCache]: Analyzing trace with hash -931019936, now seen corresponding path program 1 times [2020-10-28 12:04:57,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:04:57,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1779174571] [2020-10-28 12:04:57,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:04:57,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:04:57,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:57,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:04:58,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:05:00,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:05:00,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-10-28 12:05:00,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:05:00,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2696 [2020-10-28 12:05:00,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:05:00,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:05:00,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:05:00,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-10-28 12:05:00,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-28 12:05:00,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:05:00,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:05:00,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:05:00,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:05:00,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:05:00,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:05:00,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:05:00,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 12:05:00,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:05:00,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:05:00,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:05:00,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:05:00,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:05:00,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:05:00,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:05:00,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:05:00,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:05:00,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:05:00,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-28 12:05:00,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:05:00,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 226 [2020-10-28 12:05:00,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:05:00,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:05:00,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:05:00,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:05:00,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-28 12:05:00,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:05:00,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-28 12:05:00,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:05:00,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:05:01,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:05:01,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-28 12:05:01,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:05:01,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 179 [2020-10-28 12:05:01,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:05:01,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:05:01,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:05:01,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:05:01,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 12:05:01,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:05:01,704 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 100 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 12:05:01,705 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1779174571] [2020-10-28 12:05:01,705 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:05:01,705 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:05:01,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049994321] [2020-10-28 12:05:01,706 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:05:01,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:05:01,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:05:01,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:05:01,708 INFO L87 Difference]: Start difference. First operand 8758 states and 11159 transitions. Second operand 7 states. [2020-10-28 12:05:07,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:05:07,766 INFO L93 Difference]: Finished difference Result 18109 states and 23093 transitions. [2020-10-28 12:05:07,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:05:07,767 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 243 [2020-10-28 12:05:07,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:05:07,803 INFO L225 Difference]: With dead ends: 18109 [2020-10-28 12:05:07,804 INFO L226 Difference]: Without dead ends: 9543 [2020-10-28 12:05:07,824 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:05:07,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9543 states. [2020-10-28 12:05:08,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9543 to 9338. [2020-10-28 12:05:08,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9338 states. [2020-10-28 12:05:08,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9338 states to 9338 states and 11819 transitions. [2020-10-28 12:05:08,060 INFO L78 Accepts]: Start accepts. Automaton has 9338 states and 11819 transitions. Word has length 243 [2020-10-28 12:05:08,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:05:08,061 INFO L481 AbstractCegarLoop]: Abstraction has 9338 states and 11819 transitions. [2020-10-28 12:05:08,061 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:05:08,061 INFO L276 IsEmpty]: Start isEmpty. Operand 9338 states and 11819 transitions. [2020-10-28 12:05:08,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2020-10-28 12:05:08,067 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:05:08,068 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:05:08,068 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 12:05:08,068 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:05:08,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:05:08,069 INFO L82 PathProgramCache]: Analyzing trace with hash 1419201218, now seen corresponding path program 1 times [2020-10-28 12:05:08,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:05:08,069 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1241524408] [2020-10-28 12:05:08,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:05:08,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:05:08,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:05:08,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:05:08,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 280 [2020-10-28 12:05:08,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:05:08,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 474 [2020-10-28 12:05:08,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:05:08,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:05:08,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:05:08,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 255 [2020-10-28 12:05:08,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 12:05:08,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:05:08,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:05:08,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:05:08,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:05:08,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:05:08,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:05:08,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:05:08,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 12:05:08,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:05:08,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:05:08,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:05:08,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:05:08,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:05:08,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:05:08,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:05:08,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:05:08,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:05:08,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:05:08,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-28 12:05:08,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:05:08,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-28 12:05:08,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:05:08,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:05:08,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:05:08,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:05:08,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:05:08,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:05:08,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-28 12:05:08,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:05:08,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:05:09,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:05:09,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 12:05:09,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:05:09,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-10-28 12:05:09,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:05:09,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:05:09,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:05:09,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:05:09,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-28 12:05:09,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:05:09,176 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 31 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-10-28 12:05:09,176 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1241524408] [2020-10-28 12:05:09,176 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:05:09,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 12:05:09,177 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968851292] [2020-10-28 12:05:09,177 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 12:05:09,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:05:09,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 12:05:09,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:05:09,178 INFO L87 Difference]: Start difference. First operand 9338 states and 11819 transitions. Second operand 5 states. [2020-10-28 12:05:12,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:05:12,609 INFO L93 Difference]: Finished difference Result 21511 states and 27507 transitions. [2020-10-28 12:05:12,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:05:12,610 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 266 [2020-10-28 12:05:12,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:05:12,652 INFO L225 Difference]: With dead ends: 21511 [2020-10-28 12:05:12,652 INFO L226 Difference]: Without dead ends: 12557 [2020-10-28 12:05:12,673 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 12:05:12,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12557 states. [2020-10-28 12:05:12,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12557 to 11416. [2020-10-28 12:05:12,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11416 states. [2020-10-28 12:05:12,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11416 states to 11416 states and 14536 transitions. [2020-10-28 12:05:12,953 INFO L78 Accepts]: Start accepts. Automaton has 11416 states and 14536 transitions. Word has length 266 [2020-10-28 12:05:12,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:05:12,953 INFO L481 AbstractCegarLoop]: Abstraction has 11416 states and 14536 transitions. [2020-10-28 12:05:12,954 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 12:05:12,954 INFO L276 IsEmpty]: Start isEmpty. Operand 11416 states and 14536 transitions. [2020-10-28 12:05:12,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2020-10-28 12:05:12,962 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:05:12,962 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:05:12,962 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-28 12:05:12,963 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:05:12,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:05:12,963 INFO L82 PathProgramCache]: Analyzing trace with hash -215638943, now seen corresponding path program 1 times [2020-10-28 12:05:12,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:05:12,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2007358621] [2020-10-28 12:05:12,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:05:13,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:05:13,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:05:13,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:05:14,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:05:14,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 306 [2020-10-28 12:05:14,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:05:14,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1100 [2020-10-28 12:05:14,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:05:14,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:05:14,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:05:14,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-28 12:05:14,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 162 [2020-10-28 12:05:14,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:05:14,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:05:14,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:05:14,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:05:14,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:05:14,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:05:14,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:05:14,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 12:05:14,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:05:14,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:05:14,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:05:14,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:05:14,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:05:14,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:05:14,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:05:14,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:05:14,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:05:14,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:05:14,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-28 12:05:14,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:05:14,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-28 12:05:14,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:05:14,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:05:14,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:05:14,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:05:14,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-28 12:05:14,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:05:14,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-28 12:05:14,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:05:14,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:05:14,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:05:14,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-28 12:05:14,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:05:14,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 326 [2020-10-28 12:05:14,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:05:14,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:05:14,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:05:14,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:05:14,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-28 12:05:14,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:05:15,306 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 150 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-28 12:05:15,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2007358621] [2020-10-28 12:05:15,306 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:05:15,306 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-28 12:05:15,306 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103552671] [2020-10-28 12:05:15,307 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 12:05:15,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:05:15,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 12:05:15,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 12:05:15,308 INFO L87 Difference]: Start difference. First operand 11416 states and 14536 transitions. Second operand 6 states. [2020-10-28 12:05:18,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:05:18,505 INFO L93 Difference]: Finished difference Result 22346 states and 28878 transitions. [2020-10-28 12:05:18,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 12:05:18,507 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 292 [2020-10-28 12:05:18,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:05:18,546 INFO L225 Difference]: With dead ends: 22346 [2020-10-28 12:05:18,546 INFO L226 Difference]: Without dead ends: 11314 [2020-10-28 12:05:18,564 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:05:18,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11314 states. [2020-10-28 12:05:18,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11314 to 11032. [2020-10-28 12:05:18,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11032 states. [2020-10-28 12:05:18,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11032 states to 11032 states and 13510 transitions. [2020-10-28 12:05:18,880 INFO L78 Accepts]: Start accepts. Automaton has 11032 states and 13510 transitions. Word has length 292 [2020-10-28 12:05:18,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:05:18,880 INFO L481 AbstractCegarLoop]: Abstraction has 11032 states and 13510 transitions. [2020-10-28 12:05:18,881 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 12:05:18,881 INFO L276 IsEmpty]: Start isEmpty. Operand 11032 states and 13510 transitions. [2020-10-28 12:05:18,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2020-10-28 12:05:18,889 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:05:18,890 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-28 12:05:18,890 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-28 12:05:18,890 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:05:18,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:05:18,891 INFO L82 PathProgramCache]: Analyzing trace with hash -1663066503, now seen corresponding path program 1 times [2020-10-28 12:05:18,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:05:18,891 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1300360412] [2020-10-28 12:05:18,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:05:18,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:05:19,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:05:19,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:05:19,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:05:21,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:05:21,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:05:23,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:05:23,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 312 [2020-10-28 12:05:23,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 12:05:23,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4427 [2020-10-28 12:05:23,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:05:23,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:05:23,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:05:23,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 212 [2020-10-28 12:05:23,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-28 12:05:23,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:05:23,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:05:23,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:05:23,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:05:23,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:05:23,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:05:23,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:05:23,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 12:05:23,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:05:23,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:05:23,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:05:23,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:05:23,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:05:23,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:05:23,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:05:23,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:05:23,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:05:23,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:05:23,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-28 12:05:23,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:05:23,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 12:05:23,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:05:23,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:05:23,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:05:23,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:05:23,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:05:23,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:05:23,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-28 12:05:23,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:05:23,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:05:23,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:05:23,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-28 12:05:23,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:05:23,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-28 12:05:23,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:05:23,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:05:23,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:05:23,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:05:23,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 12:05:23,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:05:23,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-28 12:05:23,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:05:23,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:05:23,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:05:23,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-28 12:05:23,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:05:23,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-28 12:05:23,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:05:23,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:05:23,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:05:23,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:05:23,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 12:05:23,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:05:24,131 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 190 proven. 2 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-28 12:05:24,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1300360412] [2020-10-28 12:05:24,135 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:05:24,135 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:05:24,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242440795] [2020-10-28 12:05:24,137 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:05:24,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:05:24,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:05:24,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:05:24,138 INFO L87 Difference]: Start difference. First operand 11032 states and 13510 transitions. Second operand 7 states. [2020-10-28 12:05:28,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:05:28,242 INFO L93 Difference]: Finished difference Result 22461 states and 27500 transitions. [2020-10-28 12:05:28,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 12:05:28,247 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 296 [2020-10-28 12:05:28,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:05:28,281 INFO L225 Difference]: With dead ends: 22461 [2020-10-28 12:05:28,282 INFO L226 Difference]: Without dead ends: 11813 [2020-10-28 12:05:28,300 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-28 12:05:28,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11813 states. [2020-10-28 12:05:28,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11813 to 11428. [2020-10-28 12:05:28,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11428 states. [2020-10-28 12:05:28,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11428 states to 11428 states and 13769 transitions. [2020-10-28 12:05:28,565 INFO L78 Accepts]: Start accepts. Automaton has 11428 states and 13769 transitions. Word has length 296 [2020-10-28 12:05:28,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:05:28,565 INFO L481 AbstractCegarLoop]: Abstraction has 11428 states and 13769 transitions. [2020-10-28 12:05:28,566 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:05:28,566 INFO L276 IsEmpty]: Start isEmpty. Operand 11428 states and 13769 transitions. [2020-10-28 12:05:28,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2020-10-28 12:05:28,576 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:05:28,576 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:05:28,576 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-28 12:05:28,577 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:05:28,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:05:28,577 INFO L82 PathProgramCache]: Analyzing trace with hash -1767321175, now seen corresponding path program 1 times [2020-10-28 12:05:28,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:05:28,578 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [768503562] [2020-10-28 12:05:28,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:05:28,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:05:28,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:05:28,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:05:29,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:05:29,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:05:31,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:05:31,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 317 [2020-10-28 12:05:31,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:05:31,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2888 [2020-10-28 12:05:31,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:05:31,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:05:31,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:05:31,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 217 [2020-10-28 12:05:31,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-28 12:05:31,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:05:31,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:05:31,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:05:31,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:05:31,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:05:31,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:05:31,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:05:31,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:05:31,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:05:31,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:05:31,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:05:31,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:05:31,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:05:31,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:05:31,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:05:31,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:05:31,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:05:31,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:05:31,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-28 12:05:31,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:05:31,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-28 12:05:31,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:05:31,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:05:31,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:05:31,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:05:31,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:05:31,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:05:31,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-28 12:05:31,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:05:31,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:05:31,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:05:31,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-28 12:05:31,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:05:31,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-28 12:05:31,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:05:31,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:05:31,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:05:31,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:05:31,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-28 12:05:31,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:05:31,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2020-10-28 12:05:31,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:05:31,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:05:32,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:05:32,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-28 12:05:32,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:05:32,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-28 12:05:32,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:05:32,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:05:32,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:05:32,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:05:32,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 12:05:32,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:05:32,161 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 190 proven. 2 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2020-10-28 12:05:32,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [768503562] [2020-10-28 12:05:32,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:05:32,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:05:32,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714171333] [2020-10-28 12:05:32,162 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:05:32,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:05:32,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:05:32,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:05:32,163 INFO L87 Difference]: Start difference. First operand 11428 states and 13769 transitions. Second operand 7 states. [2020-10-28 12:05:35,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:05:35,468 INFO L93 Difference]: Finished difference Result 22485 states and 27135 transitions. [2020-10-28 12:05:35,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:05:35,469 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 301 [2020-10-28 12:05:35,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:05:35,501 INFO L225 Difference]: With dead ends: 22485 [2020-10-28 12:05:35,501 INFO L226 Difference]: Without dead ends: 11441 [2020-10-28 12:05:35,518 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:05:35,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11441 states. [2020-10-28 12:05:35,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11441 to 10486. [2020-10-28 12:05:35,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10486 states. [2020-10-28 12:05:35,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10486 states to 10486 states and 12604 transitions. [2020-10-28 12:05:35,827 INFO L78 Accepts]: Start accepts. Automaton has 10486 states and 12604 transitions. Word has length 301 [2020-10-28 12:05:35,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:05:35,828 INFO L481 AbstractCegarLoop]: Abstraction has 10486 states and 12604 transitions. [2020-10-28 12:05:35,828 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:05:35,828 INFO L276 IsEmpty]: Start isEmpty. Operand 10486 states and 12604 transitions. [2020-10-28 12:05:35,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2020-10-28 12:05:35,834 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:05:35,835 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-28 12:05:35,835 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-28 12:05:35,835 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:05:35,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:05:35,836 INFO L82 PathProgramCache]: Analyzing trace with hash 1814615201, now seen corresponding path program 1 times [2020-10-28 12:05:35,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:05:35,836 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [135297021] [2020-10-28 12:05:35,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:05:35,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:05:35,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:05:36,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:05:37,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:05:37,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 324 [2020-10-28 12:05:37,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:05:37,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2017 [2020-10-28 12:05:37,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:05:37,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:05:37,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:05:37,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 224 [2020-10-28 12:05:37,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-28 12:05:37,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:05:38,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:05:38,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:05:38,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:05:38,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:05:38,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:05:38,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:05:38,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 12:05:38,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:05:38,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:05:38,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:05:38,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:05:38,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:05:38,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:05:38,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:05:38,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:05:38,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:05:38,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:05:38,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-28 12:05:38,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:05:38,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-28 12:05:38,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:05:38,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:05:38,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:05:38,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:05:38,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:05:38,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:05:38,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-28 12:05:38,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:05:38,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:05:38,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:05:38,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-28 12:05:38,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:05:38,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-28 12:05:38,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:05:38,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:05:38,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:05:38,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:05:38,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-28 12:05:38,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:05:38,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-28 12:05:38,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:05:38,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:05:38,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:05:38,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-28 12:05:38,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:05:38,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-10-28 12:05:38,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:05:38,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:05:38,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:05:38,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:05:38,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 12:05:38,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:05:38,846 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 190 proven. 2 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2020-10-28 12:05:38,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [135297021] [2020-10-28 12:05:38,850 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:05:38,850 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 12:05:38,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958737279] [2020-10-28 12:05:38,851 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 12:05:38,851 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:05:38,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 12:05:38,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:05:38,852 INFO L87 Difference]: Start difference. First operand 10486 states and 12604 transitions. Second operand 8 states. [2020-10-28 12:05:44,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:05:44,686 INFO L93 Difference]: Finished difference Result 21557 states and 25938 transitions. [2020-10-28 12:05:44,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:05:44,687 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 308 [2020-10-28 12:05:44,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:05:44,716 INFO L225 Difference]: With dead ends: 21557 [2020-10-28 12:05:44,716 INFO L226 Difference]: Without dead ends: 11455 [2020-10-28 12:05:44,731 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:05:44,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11455 states. [2020-10-28 12:05:44,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11455 to 11062. [2020-10-28 12:05:44,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11062 states. [2020-10-28 12:05:44,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11062 states to 11062 states and 13285 transitions. [2020-10-28 12:05:44,974 INFO L78 Accepts]: Start accepts. Automaton has 11062 states and 13285 transitions. Word has length 308 [2020-10-28 12:05:44,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:05:44,975 INFO L481 AbstractCegarLoop]: Abstraction has 11062 states and 13285 transitions. [2020-10-28 12:05:44,975 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 12:05:44,975 INFO L276 IsEmpty]: Start isEmpty. Operand 11062 states and 13285 transitions. [2020-10-28 12:05:44,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2020-10-28 12:05:44,982 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:05:44,982 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:05:44,982 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-28 12:05:44,983 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:05:44,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:05:44,983 INFO L82 PathProgramCache]: Analyzing trace with hash -334782583, now seen corresponding path program 1 times [2020-10-28 12:05:44,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:05:44,984 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [790203196] [2020-10-28 12:05:44,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:05:45,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-28 12:05:45,067 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-28 12:05:45,067 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-28 12:05:45,076 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-28 12:05:45,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 12:05:45 BoogieIcfgContainer [2020-10-28 12:05:45,159 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 12:05:45,161 INFO L168 Benchmark]: Toolchain (without parser) took 112662.75 ms. Allocated memory was 151.0 MB in the beginning and 1.4 GB in the end (delta: 1.3 GB). Free memory was 129.8 MB in the beginning and 961.7 MB in the end (delta: -832.0 MB). Peak memory consumption was 449.4 MB. Max. memory is 8.0 GB. [2020-10-28 12:05:45,161 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 151.0 MB. Free memory is still 122.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 12:05:45,162 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1047.20 ms. Allocated memory is still 151.0 MB. Free memory was 129.1 MB in the beginning and 113.1 MB in the end (delta: 16.0 MB). Peak memory consumption was 31.7 MB. Max. memory is 8.0 GB. [2020-10-28 12:05:45,166 INFO L168 Benchmark]: Boogie Preprocessor took 189.07 ms. Allocated memory is still 151.0 MB. Free memory was 113.1 MB in the beginning and 105.4 MB in the end (delta: 7.8 MB). Peak memory consumption was 7.3 MB. Max. memory is 8.0 GB. [2020-10-28 12:05:45,167 INFO L168 Benchmark]: RCFGBuilder took 2434.02 ms. Allocated memory was 151.0 MB in the beginning and 184.5 MB in the end (delta: 33.6 MB). Free memory was 105.4 MB in the beginning and 81.2 MB in the end (delta: 24.2 MB). Peak memory consumption was 64.1 MB. Max. memory is 8.0 GB. [2020-10-28 12:05:45,170 INFO L168 Benchmark]: TraceAbstraction took 108981.06 ms. Allocated memory was 184.5 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 81.2 MB in the beginning and 961.7 MB in the end (delta: -880.6 MB). Peak memory consumption was 366.2 MB. Max. memory is 8.0 GB. [2020-10-28 12:05:45,173 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 151.0 MB. Free memory is still 122.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 1047.20 ms. Allocated memory is still 151.0 MB. Free memory was 129.1 MB in the beginning and 113.1 MB in the end (delta: 16.0 MB). Peak memory consumption was 31.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 189.07 ms. Allocated memory is still 151.0 MB. Free memory was 113.1 MB in the beginning and 105.4 MB in the end (delta: 7.8 MB). Peak memory consumption was 7.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 2434.02 ms. Allocated memory was 151.0 MB in the beginning and 184.5 MB in the end (delta: 33.6 MB). Free memory was 105.4 MB in the beginning and 81.2 MB in the end (delta: 24.2 MB). Peak memory consumption was 64.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 108981.06 ms. Allocated memory was 184.5 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 81.2 MB in the beginning and 961.7 MB in the end (delta: -880.6 MB). Peak memory consumption was 366.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 4]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L9] int inputA = 1; [L10] int inputD = 4; [L11] int inputB = 2; [L12] int inputE = 5; [L13] int inputF = 6; [L14] int inputC = 3; [L17] int a29 = 130; [L18] int a4 = 1; [L19] int a23 = 312; [L20] int a8 = 15; [L21] int a25 = 10; [L22] int a3 = 1; [L1033] int output = -1; [L1036] COND TRUE 1 [L1039] int input; [L1040] input = __VERIFIER_nondet_int() [L1041] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L1044] CALL, EXPR calculate_output(input) [L25] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==10)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L28] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==11)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L31] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==9)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L34] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==10)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L37] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==9)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L40] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==11)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L43] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==13)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L46] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==11)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L49] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==10)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L52] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==13)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L55] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==9)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L58] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==12)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L61] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==13)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L64] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==9)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L67] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==9)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L70] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==11)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L73] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==10)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L76] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==12)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L79] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==11)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L82] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==12)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L85] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==9)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L88] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==9)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L91] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==13)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L94] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==10)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L97] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==13)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L100] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==10)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L103] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==10)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L106] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==13)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L109] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==13)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L112] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==12)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L115] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==10)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L118] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==9)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L121] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==12)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L124] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==11)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L127] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==12)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L130] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==11)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L133] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==12)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L136] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==11)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L139] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==10)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L142] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==10)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L145] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==12)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L148] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==13)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L151] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==13)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L154] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==12)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L157] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==13)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L160] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==9)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L163] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==12)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L166] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==9)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L169] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==12)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L172] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==12)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L175] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==9)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L178] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==11)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L181] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==10)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L184] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==9)) && (a3==1)) && 306 < a23 ) && (a8==15))) [L187] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==13)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L190] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==11)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L193] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==11)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L196] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==11)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L199] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==10)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L202] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==13)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L205] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==9)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L209] COND FALSE !((( ((140 < a29) && (245 >= a29)) && ((a25==12) && ( a23 <= -43 && ((a8==15) && ((input == 6) && (a3==1)))))) && !(a4==1))) [L216] COND FALSE !((!(a4==1) && (((a3==1) && ((((((a25==13) && ((140 < a29) && (245 >= a29)) ) || ((a25==9) && ((245 < a29) && (277 >= a29)) )) || ( ((245 < a29) && (277 >= a29)) && (a25==10))) && (input == 4)) && a23 <= -43 )) && (a8==15)))) [L223] COND FALSE !(((a25==11) && (!(a4==1) && (((((input == 2) && (a3==1)) && a23 <= -43 ) && (a8==15)) && ((245 < a29) && (277 >= a29)) )))) [L229] COND FALSE !(((( a29 <= 140 && ((a3==1) && (((input == 5) && (a25==13)) && (a4==1)))) && (a8==15)) && 306 < a23 )) [L235] COND FALSE !((((a8==15) && (((((((a4==1) && 277 < a29 ) && (a25==12)) && 306 < a23 ) || ( 306 < a23 && (((a4==1) && 277 < a29 ) && (a25==13)))) || ((( a29 <= 140 && !(a4==1)) && (a25==9)) && a23 <= -43 )) && (input == 6))) && (a3==1))) [L242] COND FALSE !(((((input == 4) && (( a23 <= -43 && ((a25==9) && (!(a4==1) && a29 <= 140 ))) || (((( 277 < a29 && (a4==1)) && (a25==12)) && 306 < a23 ) || ( 306 < a23 && ((a25==13) && ( 277 < a29 && (a4==1))))))) && (a8==15)) && (a3==1))) [L249] COND FALSE !((((a3==1) && (!(a4==1) && (( a29 <= 140 && ((input == 1) && ((a25==12) || ((a25==10) || (a25==11))))) && ((-43 < a23) && (138 >= a23)) ))) && (a8==15))) [L256] COND FALSE !(((( ((245 < a29) && (277 >= a29)) && (( a23 <= -43 && (!(a4==1) && (input == 1))) && (a25==11))) && (a8==15)) && (a3==1))) [L262] COND FALSE !(((((a4==1) && (((input == 1) && (( ((245 < a29) && (277 >= a29)) && (a25==10)) || (((a25==13) && ((140 < a29) && (245 >= a29)) ) || ((a25==9) && ((245 < a29) && (277 >= a29)) )))) && (a8==15))) && 306 < a23 ) && (a3==1))) [L267] COND FALSE !((( 277 < a29 && (((a8==15) && ( a23 <= -43 && ((input == 2) && (a3==1)))) && !(a4==1))) && (a25==13))) [L270] COND FALSE !(( a29 <= 140 && ((((a8==15) && ((a3==1) && ((input == 1) && ((a25==12) || (a25==13))))) && !(a4==1)) && a23 <= -43 ))) [L277] COND FALSE !((((a4==1) && ((a8==15) && (((a3==1) && (((a25==9) || (a25==10)) && (input == 5))) && ((140 < a29) && (245 >= a29)) ))) && 306 < a23 )) [L282] COND FALSE !(((a3==1) && (((((input == 5) && (( ((245 < a29) && (277 >= a29)) && (a25==10)) || (( ((140 < a29) && (245 >= a29)) && (a25==13)) || ( ((245 < a29) && (277 >= a29)) && (a25==9))))) && (a8==15)) && !(a4==1)) && a23 <= -43 ))) [L289] COND FALSE !(((a8==15) && ((((!(a4==1) && (((a25==12) || (a25==13)) && (input == 4))) && a23 <= -43 ) && a29 <= 140 ) && (a3==1)))) [L296] COND FALSE !(((a8==15) && (!(a4==1) && ( a23 <= -43 && ((a3==1) && ( 277 < a29 && (((a25==12) || ((a25==10) || (a25==11))) && (input == 6)))))))) [L301] COND FALSE !(( 306 < a23 && (((a8==15) && ((a3==1) && ((a4==1) && (((a25==11) || (a25==12)) && (input == 6))))) && ((140 < a29) && (245 >= a29)) ))) [L307] COND FALSE !(((((a8==15) && ( a29 <= 140 && ( a23 <= -43 && ((input == 2) && ((a25==10) || (a25==11)))))) && !(a4==1)) && (a3==1))) [L312] COND FALSE !(((a3==1) && ( ((245 < a29) && (277 >= a29)) && (((a4==1) && ((a8==15) && ((((a25==11) || (a25==12)) || (a25==13)) && (input == 5)))) && 306 < a23 )))) [L319] COND FALSE !(((((a8==15) && (((a4==1) && ((input == 2) && ((a25==13) || ((a25==11) || (a25==12))))) && ((245 < a29) && (277 >= a29)) )) && 306 < a23 ) && (a3==1))) [L324] COND FALSE !((( 306 < a23 && ((a8==15) && ((((input == 6) && ((a25==9) || (a25==10))) && ((140 < a29) && (245 >= a29)) ) && (a3==1)))) && (a4==1))) [L331] COND FALSE !(((((a8==15) && (((((a25==11) || (a25==12)) && (input == 4)) && 306 < a23 ) && (a3==1))) && (a4==1)) && ((140 < a29) && (245 >= a29)) )) [L336] COND FALSE !(( a23 <= -43 && ( ((140 < a29) && (245 >= a29)) && (((a8==15) && (((input == 4) && ((a25==11) || ((a25==9) || (a25==10)))) && !(a4==1))) && (a3==1))))) [L342] COND FALSE !((((((((((a25==12) && ((245 < a29) && (277 >= a29)) ) || ((a25==13) && ((245 < a29) && (277 >= a29)) )) || ( 277 < a29 && (a25==9))) && (input == 1)) && a23 <= -43 ) && (a8==15)) && !(a4==1)) && (a3==1))) [L348] COND FALSE !((!(a4==1) && ( a29 <= 140 && ((((((a25==12) || (a25==13)) && (input == 2)) && a23 <= -43 ) && (a3==1)) && (a8==15))))) [L355] COND FALSE !(((a8==15) && (( 306 < a23 && ((a3==1) && ((input == 4) && (( ((245 < a29) && (277 >= a29)) && (a25==10)) || (( ((140 < a29) && (245 >= a29)) && (a25==13)) || ((a25==9) && ((245 < a29) && (277 >= a29)) )))))) && (a4==1)))) [L360] COND FALSE !(((((input == 3) && (( a23 <= -43 && ((!(a4==1) && a29 <= 140 ) && (a25==9))) || (( 306 < a23 && (( 277 < a29 && (a4==1)) && (a25==12))) || ((((a4==1) && 277 < a29 ) && (a25==13)) && 306 < a23 )))) && (a3==1)) && (a8==15))) [L367] COND FALSE !(( 306 < a23 && ((a4==1) && (((((((a25==11) || (a25==12)) || (a25==13)) && (input == 3)) && (a8==15)) && (a3==1)) && ((245 < a29) && (277 >= a29)) )))) [L372] COND FALSE !(( ((245 < a29) && (277 >= a29)) && (((((!(a4==1) && (input == 6)) && (a3==1)) && (a25==11)) && (a8==15)) && a23 <= -43 ))) [L379] COND FALSE !((( ((-43 < a23) && (138 >= a23)) && (((a8==15) && ((input == 2) && ((( a29 <= 140 && (a25==13)) || ( ((140 < a29) && (245 >= a29)) && (a25==9))) || ((a25==10) && ((140 < a29) && (245 >= a29)) )))) && (a3==1))) && !(a4==1))) [L386] COND FALSE !(( a29 <= 140 && ((a8==15) && ((((((a25==10) || (a25==11)) && (input == 3)) && a23 <= -43 ) && (a3==1)) && !(a4==1))))) [L393] COND FALSE !((((((a8==15) && (((input == 3) && (((a25==10) || (a25==11)) || (a25==12))) && (a3==1))) && a23 <= -43 ) && !(a4==1)) && 277 < a29 )) [L400] COND FALSE !(((!(a4==1) && ((a25==9) && ((a8==15) && ((a3==1) && ( ((-43 < a23) && (138 >= a23)) && (input == 1)))))) && a29 <= 140 )) [L413] COND FALSE !(((a8==15) && ((( 306 < a23 && (((((a25==11) || (a25==12)) || (a25==13)) && (input == 6)) && ((245 < a29) && (277 >= a29)) )) && (a4==1)) && (a3==1)))) [L419] COND FALSE !((((((!(a4==1) && ((a8==15) && (input == 2))) && (a3==1)) && ((140 < a29) && (245 >= a29)) ) && (a25==12)) && a23 <= -43 )) [L424] COND FALSE !(( a23 <= -43 && (( a29 <= 140 && ((a8==15) && (!(a4==1) && (((a25==12) || (a25==13)) && (input == 3))))) && (a3==1)))) [L431] COND FALSE !(((((((input == 6) && ((((a25==13) && a29 <= 140 ) || ( ((140 < a29) && (245 >= a29)) && (a25==9))) || ( ((140 < a29) && (245 >= a29)) && (a25==10)))) && (a8==15)) && (a3==1)) && !(a4==1)) && ((-43 < a23) && (138 >= a23)) )) [L438] COND FALSE !(((!(a4==1) && (((((a3==1) && (input == 4)) && (a25==11)) && ((245 < a29) && (277 >= a29)) ) && a23 <= -43 )) && (a8==15))) [L445] COND FALSE !(((a3==1) && ( ((140 < a29) && (245 >= a29)) && ( a23 <= -43 && ((a8==15) && (!(a4==1) && ((((a25==9) || (a25==10)) || (a25==11)) && (input == 3)))))))) [L452] COND FALSE !(((((!(a4==1) && (((((a25==10) || (a25==11)) || (a25==12)) && (input == 4)) && 277 < a29 )) && a23 <= -43 ) && (a8==15)) && (a3==1))) [L458] COND FALSE !(( ((140 < a29) && (245 >= a29)) && ((a8==15) && (((a25==12) && (!(a4==1) && ( a23 <= -43 && (input == 4)))) && (a3==1))))) [L465] COND FALSE !(((a3==1) && ((((((( 277 < a29 && (a4==1)) && (a25==12)) && 306 < a23 ) || ( 306 < a23 && (((a4==1) && 277 < a29 ) && (a25==13)))) || (((a25==9) && (!(a4==1) && a29 <= 140 )) && a23 <= -43 )) && (input == 2)) && (a8==15)))) [L472] COND FALSE !(((((input == 5) && (((((a25==12) && ((a4==1) && 277 < a29 )) && 306 < a23 ) || ((( 277 < a29 && (a4==1)) && (a25==13)) && 306 < a23 )) || ((( a29 <= 140 && !(a4==1)) && (a25==9)) && a23 <= -43 ))) && (a8==15)) && (a3==1))) [L479] COND FALSE !(((a25==12) && (((a3==1) && ((((input == 1) && a23 <= -43 ) && ((140 < a29) && (245 >= a29)) ) && !(a4==1))) && (a8==15)))) [L489] COND FALSE !((((a8==15) && (( ((-43 < a23) && (138 >= a23)) && ((input == 1) && (( ((140 < a29) && (245 >= a29)) && (a25==10)) || (((a25==13) && a29 <= 140 ) || ((a25==9) && ((140 < a29) && (245 >= a29)) ))))) && (a3==1))) && !(a4==1))) [L502] COND FALSE !(((a3==1) && ((a8==15) && (((((( ((140 < a29) && (245 >= a29)) && (a25==13)) || ((a25==9) && ((245 < a29) && (277 >= a29)) )) || ( ((245 < a29) && (277 >= a29)) && (a25==10))) && (input == 3)) && !(a4==1)) && a23 <= -43 )))) [L509] COND FALSE !((( a29 <= 140 && ( ((-43 < a23) && (138 >= a23)) && ((a3==1) && ((a8==15) && (((a25==12) || ((a25==10) || (a25==11))) && (input == 2)))))) && !(a4==1))) [L516] COND FALSE !((((a4==1) && ( 306 < a23 && ((((input == 3) && ((a25==9) || (a25==10))) && ((140 < a29) && (245 >= a29)) ) && (a3==1)))) && (a8==15))) [L528] COND FALSE !(((a4==1) && ((((a3==1) && ( 306 < a23 && (((a25==12) || ((a25==10) || (a25==11))) && (input == 4)))) && a29 <= 140 ) && (a8==15)))) [L533] COND FALSE !((((( ((-43 < a23) && (138 >= a23)) && ((!(a4==1) && (input == 5)) && (a3==1))) && (a25==9)) && a29 <= 140 ) && (a8==15))) [L539] COND FALSE !(( 306 < a23 && (((a8==15) && ((((input == 1) && ((a25==11) || (a25==12))) && (a4==1)) && (a3==1))) && ((140 < a29) && (245 >= a29)) ))) [L544] COND FALSE !(((((a8==15) && ( a23 <= -43 && (((input == 1) && ((a25==10) || (a25==11))) && a29 <= 140 ))) && !(a4==1)) && (a3==1))) [L551] COND FALSE !(((( a23 <= -43 && (!(a4==1) && ((a3==1) && (((a25==11) || ((a25==9) || (a25==10))) && (input == 5))))) && (a8==15)) && ((140 < a29) && (245 >= a29)) )) [L557] COND FALSE !(((a3==1) && ( ((-43 < a23) && (138 >= a23)) && ((a8==15) && ((((((a25==10) || (a25==11)) || (a25==12)) && (input == 5)) && a29 <= 140 ) && !(a4==1)))))) [L563] COND FALSE !(( 306 < a23 && (((a3==1) && ( 277 < a29 && (((input == 4) && (((a25==9) || (a25==10)) || (a25==11))) && (a8==15)))) && (a4==1)))) [L568] COND FALSE !((!(a4==1) && ( a23 <= -43 && ((a8==15) && (((((a25==12) || ((a25==10) || (a25==11))) && (input == 1)) && (a3==1)) && 277 < a29 ))))) [L574] COND FALSE !(( 277 < a29 && (((a25==13) && ( a23 <= -43 && (!(a4==1) && ((input == 1) && (a3==1))))) && (a8==15)))) [L577] COND FALSE !(((( ((-43 < a23) && (138 >= a23)) && (((a25==9) && ((input == 4) && !(a4==1))) && a29 <= 140 )) && (a3==1)) && (a8==15))) [L583] COND FALSE !(((a8==15) && ((((a3==1) && (((((a25==10) || (a25==11)) || (a25==12)) && (input == 3)) && (a4==1))) && 306 < a23 ) && a29 <= 140 ))) [L588] COND FALSE !((( ((-43 < a23) && (138 >= a23)) && ((a3==1) && (!(a4==1) && ((input == 4) && (((a25==10) && ((140 < a29) && (245 >= a29)) ) || (((a25==13) && a29 <= 140 ) || ( ((140 < a29) && (245 >= a29)) && (a25==9)))))))) && (a8==15))) [L600] COND FALSE !(((((a8==15) && ((!(a4==1) && (((a25==11) || ((a25==9) || (a25==10))) && (input == 6))) && (a3==1))) && a23 <= -43 ) && ((140 < a29) && (245 >= a29)) )) [L605] COND FALSE !(( a29 <= 140 && (((a4==1) && ((a8==15) && (((input == 6) && (((a25==10) || (a25==11)) || (a25==12))) && 306 < a23 ))) && (a3==1)))) [L617] COND FALSE !(((((((a3==1) && ((input == 5) && ((a25==11) || (a25==12)))) && (a4==1)) && 306 < a23 ) && ((140 < a29) && (245 >= a29)) ) && (a8==15))) [L623] COND FALSE !(((((a4==1) && ( 306 < a23 && ((a8==15) && (((a25==11) || (a25==12)) && (input == 2))))) && ((140 < a29) && (245 >= a29)) ) && (a3==1))) [L630] COND FALSE !(((((a8==15) && ( a23 <= -43 && (!(a4==1) && ((a25==11) && (input == 5))))) && (a3==1)) && ((245 < a29) && (277 >= a29)) )) [L637] COND FALSE !((((((((input == 2) && ((a25==9) || (a25==10))) && (a8==15)) && ((140 < a29) && (245 >= a29)) ) && 306 < a23 ) && (a3==1)) && (a4==1))) [L644] COND FALSE !(((a8==15) && (((( 277 < a29 && ((input == 2) && ((a25==11) || ((a25==9) || (a25==10))))) && (a4==1)) && (a3==1)) && 306 < a23 ))) [L649] COND FALSE !(((((( ((-43 < a23) && (138 >= a23)) && ((input == 3) && ((a25==12) || ((a25==10) || (a25==11))))) && !(a4==1)) && (a8==15)) && a29 <= 140 ) && (a3==1))) [L660] COND FALSE !((((!(a4==1) && ((((input == 6) && ((a25==12) || ((a25==10) || (a25==11)))) && (a8==15)) && ((-43 < a23) && (138 >= a23)) )) && (a3==1)) && a29 <= 140 )) [L665] COND FALSE !(((a25==9) && (( a29 <= 140 && ((a3==1) && (!(a4==1) && ( ((-43 < a23) && (138 >= a23)) && (input == 2))))) && (a8==15)))) [L672] COND FALSE !((!(a4==1) && ( a23 <= -43 && (((a8==15) && (((((a25==12) && ((245 < a29) && (277 >= a29)) ) || ( ((245 < a29) && (277 >= a29)) && (a25==13))) || ((a25==9) && 277 < a29 )) && (input == 3))) && (a3==1))))) [L677] COND FALSE !((((!(a4==1) && ((a3==1) && ((input == 5) && ((( ((245 < a29) && (277 >= a29)) && (a25==12)) || ((a25==13) && ((245 < a29) && (277 >= a29)) )) || ((a25==9) && 277 < a29 ))))) && a23 <= -43 ) && (a8==15))) [L683] COND FALSE !(( a23 <= -43 && (!(a4==1) && ( ((245 < a29) && (277 >= a29)) && ((a8==15) && ((a25==11) && ((a3==1) && (input == 3)))))))) [L690] COND FALSE !(((((a8==15) && ( 306 < a23 && ( ((140 < a29) && (245 >= a29)) && ((input == 1) && ((a25==9) || (a25==10)))))) && (a4==1)) && (a3==1))) [L696] COND FALSE !((!(a4==1) && (((((a3==1) && ((input == 2) && (((a25==9) || (a25==10)) || (a25==11)))) && ((140 < a29) && (245 >= a29)) ) && a23 <= -43 ) && (a8==15)))) [L708] COND FALSE !(((((((( ((245 < a29) && (277 >= a29)) && (a25==10)) || (( ((140 < a29) && (245 >= a29)) && (a25==13)) || ((a25==9) && ((245 < a29) && (277 >= a29)) ))) && (input == 6)) && (a3==1)) && 306 < a23 ) && (a4==1)) && (a8==15))) [L714] COND FALSE !(( 306 < a23 && ((a8==15) && ( 277 < a29 && ((a4==1) && ((a3==1) && ((((a25==9) || (a25==10)) || (a25==11)) && (input == 5)))))))) [L719] COND FALSE !(((( 277 < a29 && ((a8==15) && (((input == 6) && a23 <= -43 ) && (a25==13)))) && !(a4==1)) && (a3==1))) [L733] COND FALSE !(((a3==1) && (((!(a4==1) && ((( ((140 < a29) && (245 >= a29)) && (a25==10)) || (( a29 <= 140 && (a25==13)) || ((a25==9) && ((140 < a29) && (245 >= a29)) ))) && (input == 3))) && ((-43 < a23) && (138 >= a23)) ) && (a8==15)))) [L740] COND TRUE ((a3==1) && (( 306 < a23 && (((a4==1) && (((a25==12) || ((a25==10) || (a25==11))) && (input == 1))) && a29 <= 140 )) && (a8==15))) [L741] a29 = ((((a29 + 161077) + -91920) % 299861)- -300138) [L742] a25 = 9 [L744] return 26; [L1044] RET, EXPR calculate_output(input) [L1044] output = calculate_output(input) [L1036] COND TRUE 1 [L1039] int input; [L1040] input = __VERIFIER_nondet_int() [L1041] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L1044] CALL, EXPR calculate_output(input) [L25] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==10)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L28] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==11)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L31] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==9)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L34] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==10)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L37] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==9)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L40] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==11)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L43] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==13)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L46] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==11)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L49] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==10)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L52] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==13)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L55] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==9)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L58] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==12)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L61] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==13)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L64] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==9)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L67] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==9)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L70] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==11)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L73] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==10)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L76] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==12)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L79] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==11)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L82] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==12)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L85] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==9)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L88] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==9)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L91] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==13)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L94] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==10)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L97] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==13)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L100] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==10)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L103] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==10)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L106] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==13)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L109] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==13)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L112] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==12)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L115] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==10)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L118] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==9)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L121] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==12)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L124] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==11)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L127] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==12)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L130] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==11)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L133] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==12)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L136] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==11)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L139] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==10)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L142] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==10)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L145] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==12)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L148] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==13)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L151] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==13)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L154] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==12)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L157] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==13)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L160] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==9)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L163] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==12)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L166] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==9)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L169] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==12)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L172] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==12)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L175] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==9)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L178] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==11)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L181] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==10)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L184] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==9)) && (a3==1)) && 306 < a23 ) && (a8==15))) [L187] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==13)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L190] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==11)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L193] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==11)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L196] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==11)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L199] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==10)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L202] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==13)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L205] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==9)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L209] COND FALSE !((( ((140 < a29) && (245 >= a29)) && ((a25==12) && ( a23 <= -43 && ((a8==15) && ((input == 6) && (a3==1)))))) && !(a4==1))) [L216] COND FALSE !((!(a4==1) && (((a3==1) && ((((((a25==13) && ((140 < a29) && (245 >= a29)) ) || ((a25==9) && ((245 < a29) && (277 >= a29)) )) || ( ((245 < a29) && (277 >= a29)) && (a25==10))) && (input == 4)) && a23 <= -43 )) && (a8==15)))) [L223] COND FALSE !(((a25==11) && (!(a4==1) && (((((input == 2) && (a3==1)) && a23 <= -43 ) && (a8==15)) && ((245 < a29) && (277 >= a29)) )))) [L229] COND FALSE !(((( a29 <= 140 && ((a3==1) && (((input == 5) && (a25==13)) && (a4==1)))) && (a8==15)) && 306 < a23 )) [L235] COND FALSE !((((a8==15) && (((((((a4==1) && 277 < a29 ) && (a25==12)) && 306 < a23 ) || ( 306 < a23 && (((a4==1) && 277 < a29 ) && (a25==13)))) || ((( a29 <= 140 && !(a4==1)) && (a25==9)) && a23 <= -43 )) && (input == 6))) && (a3==1))) [L242] COND FALSE !(((((input == 4) && (( a23 <= -43 && ((a25==9) && (!(a4==1) && a29 <= 140 ))) || (((( 277 < a29 && (a4==1)) && (a25==12)) && 306 < a23 ) || ( 306 < a23 && ((a25==13) && ( 277 < a29 && (a4==1))))))) && (a8==15)) && (a3==1))) [L249] COND FALSE !((((a3==1) && (!(a4==1) && (( a29 <= 140 && ((input == 1) && ((a25==12) || ((a25==10) || (a25==11))))) && ((-43 < a23) && (138 >= a23)) ))) && (a8==15))) [L256] COND FALSE !(((( ((245 < a29) && (277 >= a29)) && (( a23 <= -43 && (!(a4==1) && (input == 1))) && (a25==11))) && (a8==15)) && (a3==1))) [L262] COND FALSE !(((((a4==1) && (((input == 1) && (( ((245 < a29) && (277 >= a29)) && (a25==10)) || (((a25==13) && ((140 < a29) && (245 >= a29)) ) || ((a25==9) && ((245 < a29) && (277 >= a29)) )))) && (a8==15))) && 306 < a23 ) && (a3==1))) [L267] COND FALSE !((( 277 < a29 && (((a8==15) && ( a23 <= -43 && ((input == 2) && (a3==1)))) && !(a4==1))) && (a25==13))) [L270] COND FALSE !(( a29 <= 140 && ((((a8==15) && ((a3==1) && ((input == 1) && ((a25==12) || (a25==13))))) && !(a4==1)) && a23 <= -43 ))) [L277] COND FALSE !((((a4==1) && ((a8==15) && (((a3==1) && (((a25==9) || (a25==10)) && (input == 5))) && ((140 < a29) && (245 >= a29)) ))) && 306 < a23 )) [L282] COND FALSE !(((a3==1) && (((((input == 5) && (( ((245 < a29) && (277 >= a29)) && (a25==10)) || (( ((140 < a29) && (245 >= a29)) && (a25==13)) || ( ((245 < a29) && (277 >= a29)) && (a25==9))))) && (a8==15)) && !(a4==1)) && a23 <= -43 ))) [L289] COND FALSE !(((a8==15) && ((((!(a4==1) && (((a25==12) || (a25==13)) && (input == 4))) && a23 <= -43 ) && a29 <= 140 ) && (a3==1)))) [L296] COND FALSE !(((a8==15) && (!(a4==1) && ( a23 <= -43 && ((a3==1) && ( 277 < a29 && (((a25==12) || ((a25==10) || (a25==11))) && (input == 6)))))))) [L301] COND FALSE !(( 306 < a23 && (((a8==15) && ((a3==1) && ((a4==1) && (((a25==11) || (a25==12)) && (input == 6))))) && ((140 < a29) && (245 >= a29)) ))) [L307] COND FALSE !(((((a8==15) && ( a29 <= 140 && ( a23 <= -43 && ((input == 2) && ((a25==10) || (a25==11)))))) && !(a4==1)) && (a3==1))) [L312] COND FALSE !(((a3==1) && ( ((245 < a29) && (277 >= a29)) && (((a4==1) && ((a8==15) && ((((a25==11) || (a25==12)) || (a25==13)) && (input == 5)))) && 306 < a23 )))) [L319] COND FALSE !(((((a8==15) && (((a4==1) && ((input == 2) && ((a25==13) || ((a25==11) || (a25==12))))) && ((245 < a29) && (277 >= a29)) )) && 306 < a23 ) && (a3==1))) [L324] COND FALSE !((( 306 < a23 && ((a8==15) && ((((input == 6) && ((a25==9) || (a25==10))) && ((140 < a29) && (245 >= a29)) ) && (a3==1)))) && (a4==1))) [L331] COND FALSE !(((((a8==15) && (((((a25==11) || (a25==12)) && (input == 4)) && 306 < a23 ) && (a3==1))) && (a4==1)) && ((140 < a29) && (245 >= a29)) )) [L336] COND FALSE !(( a23 <= -43 && ( ((140 < a29) && (245 >= a29)) && (((a8==15) && (((input == 4) && ((a25==11) || ((a25==9) || (a25==10)))) && !(a4==1))) && (a3==1))))) [L342] COND FALSE !((((((((((a25==12) && ((245 < a29) && (277 >= a29)) ) || ((a25==13) && ((245 < a29) && (277 >= a29)) )) || ( 277 < a29 && (a25==9))) && (input == 1)) && a23 <= -43 ) && (a8==15)) && !(a4==1)) && (a3==1))) [L348] COND FALSE !((!(a4==1) && ( a29 <= 140 && ((((((a25==12) || (a25==13)) && (input == 2)) && a23 <= -43 ) && (a3==1)) && (a8==15))))) [L355] COND FALSE !(((a8==15) && (( 306 < a23 && ((a3==1) && ((input == 4) && (( ((245 < a29) && (277 >= a29)) && (a25==10)) || (( ((140 < a29) && (245 >= a29)) && (a25==13)) || ((a25==9) && ((245 < a29) && (277 >= a29)) )))))) && (a4==1)))) [L360] COND FALSE !(((((input == 3) && (( a23 <= -43 && ((!(a4==1) && a29 <= 140 ) && (a25==9))) || (( 306 < a23 && (( 277 < a29 && (a4==1)) && (a25==12))) || ((((a4==1) && 277 < a29 ) && (a25==13)) && 306 < a23 )))) && (a3==1)) && (a8==15))) [L367] COND FALSE !(( 306 < a23 && ((a4==1) && (((((((a25==11) || (a25==12)) || (a25==13)) && (input == 3)) && (a8==15)) && (a3==1)) && ((245 < a29) && (277 >= a29)) )))) [L372] COND FALSE !(( ((245 < a29) && (277 >= a29)) && (((((!(a4==1) && (input == 6)) && (a3==1)) && (a25==11)) && (a8==15)) && a23 <= -43 ))) [L379] COND FALSE !((( ((-43 < a23) && (138 >= a23)) && (((a8==15) && ((input == 2) && ((( a29 <= 140 && (a25==13)) || ( ((140 < a29) && (245 >= a29)) && (a25==9))) || ((a25==10) && ((140 < a29) && (245 >= a29)) )))) && (a3==1))) && !(a4==1))) [L386] COND FALSE !(( a29 <= 140 && ((a8==15) && ((((((a25==10) || (a25==11)) && (input == 3)) && a23 <= -43 ) && (a3==1)) && !(a4==1))))) [L393] COND FALSE !((((((a8==15) && (((input == 3) && (((a25==10) || (a25==11)) || (a25==12))) && (a3==1))) && a23 <= -43 ) && !(a4==1)) && 277 < a29 )) [L400] COND FALSE !(((!(a4==1) && ((a25==9) && ((a8==15) && ((a3==1) && ( ((-43 < a23) && (138 >= a23)) && (input == 1)))))) && a29 <= 140 )) [L413] COND FALSE !(((a8==15) && ((( 306 < a23 && (((((a25==11) || (a25==12)) || (a25==13)) && (input == 6)) && ((245 < a29) && (277 >= a29)) )) && (a4==1)) && (a3==1)))) [L419] COND FALSE !((((((!(a4==1) && ((a8==15) && (input == 2))) && (a3==1)) && ((140 < a29) && (245 >= a29)) ) && (a25==12)) && a23 <= -43 )) [L424] COND FALSE !(( a23 <= -43 && (( a29 <= 140 && ((a8==15) && (!(a4==1) && (((a25==12) || (a25==13)) && (input == 3))))) && (a3==1)))) [L431] COND FALSE !(((((((input == 6) && ((((a25==13) && a29 <= 140 ) || ( ((140 < a29) && (245 >= a29)) && (a25==9))) || ( ((140 < a29) && (245 >= a29)) && (a25==10)))) && (a8==15)) && (a3==1)) && !(a4==1)) && ((-43 < a23) && (138 >= a23)) )) [L438] COND FALSE !(((!(a4==1) && (((((a3==1) && (input == 4)) && (a25==11)) && ((245 < a29) && (277 >= a29)) ) && a23 <= -43 )) && (a8==15))) [L445] COND FALSE !(((a3==1) && ( ((140 < a29) && (245 >= a29)) && ( a23 <= -43 && ((a8==15) && (!(a4==1) && ((((a25==9) || (a25==10)) || (a25==11)) && (input == 3)))))))) [L452] COND FALSE !(((((!(a4==1) && (((((a25==10) || (a25==11)) || (a25==12)) && (input == 4)) && 277 < a29 )) && a23 <= -43 ) && (a8==15)) && (a3==1))) [L458] COND FALSE !(( ((140 < a29) && (245 >= a29)) && ((a8==15) && (((a25==12) && (!(a4==1) && ( a23 <= -43 && (input == 4)))) && (a3==1))))) [L465] COND FALSE !(((a3==1) && ((((((( 277 < a29 && (a4==1)) && (a25==12)) && 306 < a23 ) || ( 306 < a23 && (((a4==1) && 277 < a29 ) && (a25==13)))) || (((a25==9) && (!(a4==1) && a29 <= 140 )) && a23 <= -43 )) && (input == 2)) && (a8==15)))) [L472] COND FALSE !(((((input == 5) && (((((a25==12) && ((a4==1) && 277 < a29 )) && 306 < a23 ) || ((( 277 < a29 && (a4==1)) && (a25==13)) && 306 < a23 )) || ((( a29 <= 140 && !(a4==1)) && (a25==9)) && a23 <= -43 ))) && (a8==15)) && (a3==1))) [L479] COND FALSE !(((a25==12) && (((a3==1) && ((((input == 1) && a23 <= -43 ) && ((140 < a29) && (245 >= a29)) ) && !(a4==1))) && (a8==15)))) [L489] COND FALSE !((((a8==15) && (( ((-43 < a23) && (138 >= a23)) && ((input == 1) && (( ((140 < a29) && (245 >= a29)) && (a25==10)) || (((a25==13) && a29 <= 140 ) || ((a25==9) && ((140 < a29) && (245 >= a29)) ))))) && (a3==1))) && !(a4==1))) [L502] COND FALSE !(((a3==1) && ((a8==15) && (((((( ((140 < a29) && (245 >= a29)) && (a25==13)) || ((a25==9) && ((245 < a29) && (277 >= a29)) )) || ( ((245 < a29) && (277 >= a29)) && (a25==10))) && (input == 3)) && !(a4==1)) && a23 <= -43 )))) [L509] COND FALSE !((( a29 <= 140 && ( ((-43 < a23) && (138 >= a23)) && ((a3==1) && ((a8==15) && (((a25==12) || ((a25==10) || (a25==11))) && (input == 2)))))) && !(a4==1))) [L516] COND FALSE !((((a4==1) && ( 306 < a23 && ((((input == 3) && ((a25==9) || (a25==10))) && ((140 < a29) && (245 >= a29)) ) && (a3==1)))) && (a8==15))) [L528] COND FALSE !(((a4==1) && ((((a3==1) && ( 306 < a23 && (((a25==12) || ((a25==10) || (a25==11))) && (input == 4)))) && a29 <= 140 ) && (a8==15)))) [L533] COND FALSE !((((( ((-43 < a23) && (138 >= a23)) && ((!(a4==1) && (input == 5)) && (a3==1))) && (a25==9)) && a29 <= 140 ) && (a8==15))) [L539] COND FALSE !(( 306 < a23 && (((a8==15) && ((((input == 1) && ((a25==11) || (a25==12))) && (a4==1)) && (a3==1))) && ((140 < a29) && (245 >= a29)) ))) [L544] COND FALSE !(((((a8==15) && ( a23 <= -43 && (((input == 1) && ((a25==10) || (a25==11))) && a29 <= 140 ))) && !(a4==1)) && (a3==1))) [L551] COND FALSE !(((( a23 <= -43 && (!(a4==1) && ((a3==1) && (((a25==11) || ((a25==9) || (a25==10))) && (input == 5))))) && (a8==15)) && ((140 < a29) && (245 >= a29)) )) [L557] COND FALSE !(((a3==1) && ( ((-43 < a23) && (138 >= a23)) && ((a8==15) && ((((((a25==10) || (a25==11)) || (a25==12)) && (input == 5)) && a29 <= 140 ) && !(a4==1)))))) [L563] COND FALSE !(( 306 < a23 && (((a3==1) && ( 277 < a29 && (((input == 4) && (((a25==9) || (a25==10)) || (a25==11))) && (a8==15)))) && (a4==1)))) [L568] COND FALSE !((!(a4==1) && ( a23 <= -43 && ((a8==15) && (((((a25==12) || ((a25==10) || (a25==11))) && (input == 1)) && (a3==1)) && 277 < a29 ))))) [L574] COND FALSE !(( 277 < a29 && (((a25==13) && ( a23 <= -43 && (!(a4==1) && ((input == 1) && (a3==1))))) && (a8==15)))) [L577] COND FALSE !(((( ((-43 < a23) && (138 >= a23)) && (((a25==9) && ((input == 4) && !(a4==1))) && a29 <= 140 )) && (a3==1)) && (a8==15))) [L583] COND FALSE !(((a8==15) && ((((a3==1) && (((((a25==10) || (a25==11)) || (a25==12)) && (input == 3)) && (a4==1))) && 306 < a23 ) && a29 <= 140 ))) [L588] COND FALSE !((( ((-43 < a23) && (138 >= a23)) && ((a3==1) && (!(a4==1) && ((input == 4) && (((a25==10) && ((140 < a29) && (245 >= a29)) ) || (((a25==13) && a29 <= 140 ) || ( ((140 < a29) && (245 >= a29)) && (a25==9)))))))) && (a8==15))) [L600] COND FALSE !(((((a8==15) && ((!(a4==1) && (((a25==11) || ((a25==9) || (a25==10))) && (input == 6))) && (a3==1))) && a23 <= -43 ) && ((140 < a29) && (245 >= a29)) )) [L605] COND FALSE !(( a29 <= 140 && (((a4==1) && ((a8==15) && (((input == 6) && (((a25==10) || (a25==11)) || (a25==12))) && 306 < a23 ))) && (a3==1)))) [L617] COND FALSE !(((((((a3==1) && ((input == 5) && ((a25==11) || (a25==12)))) && (a4==1)) && 306 < a23 ) && ((140 < a29) && (245 >= a29)) ) && (a8==15))) [L623] COND FALSE !(((((a4==1) && ( 306 < a23 && ((a8==15) && (((a25==11) || (a25==12)) && (input == 2))))) && ((140 < a29) && (245 >= a29)) ) && (a3==1))) [L630] COND FALSE !(((((a8==15) && ( a23 <= -43 && (!(a4==1) && ((a25==11) && (input == 5))))) && (a3==1)) && ((245 < a29) && (277 >= a29)) )) [L637] COND FALSE !((((((((input == 2) && ((a25==9) || (a25==10))) && (a8==15)) && ((140 < a29) && (245 >= a29)) ) && 306 < a23 ) && (a3==1)) && (a4==1))) [L644] COND FALSE !(((a8==15) && (((( 277 < a29 && ((input == 2) && ((a25==11) || ((a25==9) || (a25==10))))) && (a4==1)) && (a3==1)) && 306 < a23 ))) [L649] COND FALSE !(((((( ((-43 < a23) && (138 >= a23)) && ((input == 3) && ((a25==12) || ((a25==10) || (a25==11))))) && !(a4==1)) && (a8==15)) && a29 <= 140 ) && (a3==1))) [L660] COND FALSE !((((!(a4==1) && ((((input == 6) && ((a25==12) || ((a25==10) || (a25==11)))) && (a8==15)) && ((-43 < a23) && (138 >= a23)) )) && (a3==1)) && a29 <= 140 )) [L665] COND FALSE !(((a25==9) && (( a29 <= 140 && ((a3==1) && (!(a4==1) && ( ((-43 < a23) && (138 >= a23)) && (input == 2))))) && (a8==15)))) [L672] COND FALSE !((!(a4==1) && ( a23 <= -43 && (((a8==15) && (((((a25==12) && ((245 < a29) && (277 >= a29)) ) || ( ((245 < a29) && (277 >= a29)) && (a25==13))) || ((a25==9) && 277 < a29 )) && (input == 3))) && (a3==1))))) [L677] COND FALSE !((((!(a4==1) && ((a3==1) && ((input == 5) && ((( ((245 < a29) && (277 >= a29)) && (a25==12)) || ((a25==13) && ((245 < a29) && (277 >= a29)) )) || ((a25==9) && 277 < a29 ))))) && a23 <= -43 ) && (a8==15))) [L683] COND FALSE !(( a23 <= -43 && (!(a4==1) && ( ((245 < a29) && (277 >= a29)) && ((a8==15) && ((a25==11) && ((a3==1) && (input == 3)))))))) [L690] COND FALSE !(((((a8==15) && ( 306 < a23 && ( ((140 < a29) && (245 >= a29)) && ((input == 1) && ((a25==9) || (a25==10)))))) && (a4==1)) && (a3==1))) [L696] COND FALSE !((!(a4==1) && (((((a3==1) && ((input == 2) && (((a25==9) || (a25==10)) || (a25==11)))) && ((140 < a29) && (245 >= a29)) ) && a23 <= -43 ) && (a8==15)))) [L708] COND FALSE !(((((((( ((245 < a29) && (277 >= a29)) && (a25==10)) || (( ((140 < a29) && (245 >= a29)) && (a25==13)) || ((a25==9) && ((245 < a29) && (277 >= a29)) ))) && (input == 6)) && (a3==1)) && 306 < a23 ) && (a4==1)) && (a8==15))) [L714] COND TRUE ( 306 < a23 && ((a8==15) && ( 277 < a29 && ((a4==1) && ((a3==1) && ((((a25==9) || (a25==10)) || (a25==11)) && (input == 5))))))) [L715] a23 = ((((a23 + -600132) - -470437) + -414459) + -56058) [L716] a25 = 9 [L718] return -1; [L1044] RET, EXPR calculate_output(input) [L1044] output = calculate_output(input) [L1036] COND TRUE 1 [L1039] int input; [L1040] input = __VERIFIER_nondet_int() [L1041] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L1044] CALL calculate_output(input) [L25] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==10)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L28] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==11)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L31] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==9)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L34] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==10)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L37] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==9)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L40] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==11)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L43] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==13)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L46] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==11)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L49] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==10)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L52] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==13)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L55] COND TRUE ((((( 277 < a29 && (a4==1)) && (a25==9)) && (a3==1)) && a23 <= -43 ) && (a8==15)) [L56] CALL reach_error() [L4] __assert_fail("0", "Problem11_label14.c", 4, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 296 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 108.8s, OverallIterations: 17, TraceHistogramMax: 4, AutomataDifference: 63.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 774 SDtfs, 11352 SDslu, 1272 SDs, 0 SdLazy, 22178 SolverSat, 3137 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 44.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 255 GetRequests, 127 SyntacticMatches, 2 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 5.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11428occurred in iteration=14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.1s AutomataMinimizationTime, 16 MinimizatonAttempts, 5922 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 38.6s InterpolantComputationTime, 3581 NumberOfCodeBlocks, 3581 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 3251 ConstructedInterpolants, 0 QuantifiedInterpolants, 3396487 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 4 PerfectInterpolantSequences, 1655/1679 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 incorrect! Received shutdown request...