/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/Problem02_label50.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 10:10:59,778 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 10:10:59,782 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 10:10:59,820 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 10:10:59,821 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 10:10:59,823 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 10:10:59,825 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 10:10:59,827 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 10:10:59,830 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 10:10:59,831 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 10:10:59,833 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 10:10:59,834 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 10:10:59,835 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 10:10:59,836 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 10:10:59,838 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 10:10:59,839 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 10:10:59,840 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 10:10:59,842 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 10:10:59,857 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 10:10:59,861 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 10:10:59,864 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 10:10:59,870 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 10:10:59,872 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 10:10:59,873 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 10:10:59,883 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 10:10:59,883 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 10:10:59,884 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 10:10:59,888 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 10:10:59,889 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 10:10:59,892 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 10:10:59,893 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 10:10:59,894 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 10:10:59,895 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 10:10:59,896 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 10:10:59,897 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 10:10:59,898 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 10:10:59,899 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 10:10:59,900 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 10:10:59,901 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 10:10:59,902 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 10:10:59,904 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 10:10:59,905 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 10:10:59,963 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 10:10:59,963 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 10:10:59,968 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 10:10:59,969 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 10:10:59,969 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 10:10:59,969 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 10:10:59,970 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 10:10:59,970 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 10:10:59,971 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 10:10:59,971 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 10:10:59,972 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 10:10:59,972 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 10:10:59,973 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 10:10:59,973 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 10:10:59,973 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 10:10:59,973 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 10:10:59,973 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 10:10:59,974 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 10:10:59,974 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 10:10:59,975 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 10:10:59,975 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 10:10:59,975 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 10:10:59,975 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 10:10:59,975 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 10:10:59,976 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 10:10:59,976 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 10:10:59,976 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 10:10:59,976 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 10:10:59,977 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 10:10:59,977 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 10:11:00,474 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 10:11:00,530 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 10:11:00,534 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 10:11:00,536 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 10:11:00,537 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 10:11:00,538 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label50.c [2020-10-28 10:11:00,626 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ddb530e6f/428656ccd11e470f8734942d96572ac4/FLAGcfd40981c [2020-10-28 10:11:01,419 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 10:11:01,420 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label50.c [2020-10-28 10:11:01,433 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ddb530e6f/428656ccd11e470f8734942d96572ac4/FLAGcfd40981c [2020-10-28 10:11:01,628 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ddb530e6f/428656ccd11e470f8734942d96572ac4 [2020-10-28 10:11:01,632 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 10:11:01,639 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 10:11:01,641 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 10:11:01,641 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 10:11:01,645 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 10:11:01,646 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:11:01" (1/1) ... [2020-10-28 10:11:01,650 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@216b903f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:11:01, skipping insertion in model container [2020-10-28 10:11:01,650 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:11:01" (1/1) ... [2020-10-28 10:11:01,659 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 10:11:01,738 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 10:11:02,107 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 10:11:02,119 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 10:11:02,345 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 10:11:02,400 INFO L208 MainTranslator]: Completed translation [2020-10-28 10:11:02,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:11:02 WrapperNode [2020-10-28 10:11:02,401 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 10:11:02,403 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 10:11:02,403 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 10:11:02,403 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 10:11:02,418 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:11:02" (1/1) ... [2020-10-28 10:11:02,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:11:02" (1/1) ... [2020-10-28 10:11:02,460 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:11:02" (1/1) ... [2020-10-28 10:11:02,461 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:11:02" (1/1) ... [2020-10-28 10:11:02,528 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:11:02" (1/1) ... [2020-10-28 10:11:02,557 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:11:02" (1/1) ... [2020-10-28 10:11:02,569 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:11:02" (1/1) ... [2020-10-28 10:11:02,586 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 10:11:02,587 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 10:11:02,590 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 10:11:02,590 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 10:11:02,591 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:11:02" (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 10:11:02,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 10:11:02,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 10:11:02,679 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 10:11:02,680 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-28 10:11:02,680 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 10:11:02,680 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-28 10:11:02,680 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 10:11:02,680 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 10:11:02,680 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 10:11:02,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 10:11:02,682 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 10:11:02,682 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-28 10:11:02,682 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 10:11:02,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 10:11:02,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 10:11:02,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 10:11:02,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 10:11:02,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 10:11:02,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 10:11:04,291 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 10:11:04,291 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 10:11:04,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:11:04 BoogieIcfgContainer [2020-10-28 10:11:04,294 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 10:11:04,295 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 10:11:04,296 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 10:11:04,300 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 10:11:04,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 10:11:01" (1/3) ... [2020-10-28 10:11:04,301 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6987dc2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:11:04, skipping insertion in model container [2020-10-28 10:11:04,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:11:02" (2/3) ... [2020-10-28 10:11:04,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6987dc2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:11:04, skipping insertion in model container [2020-10-28 10:11:04,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:11:04" (3/3) ... [2020-10-28 10:11:04,304 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label50.c [2020-10-28 10:11:04,317 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 10:11:04,324 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 10:11:04,345 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 10:11:04,378 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 10:11:04,378 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 10:11:04,378 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 10:11:04,378 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 10:11:04,378 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 10:11:04,379 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 10:11:04,379 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 10:11:04,379 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 10:11:04,404 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states. [2020-10-28 10:11:04,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-28 10:11:04,415 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:11:04,416 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:11:04,417 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:11:04,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:11:04,423 INFO L82 PathProgramCache]: Analyzing trace with hash -165511451, now seen corresponding path program 1 times [2020-10-28 10:11:04,433 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:11:04,434 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1076166377] [2020-10-28 10:11:04,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:11:04,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:04,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:05,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:06,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:06,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-28 10:11:06,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 10:11:06,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1608 [2020-10-28 10:11:06,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:06,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:06,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 10:11:06,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 10:11:06,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-28 10:11:06,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 10:11:06,534 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-28 10:11:06,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:11:06,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:06,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:06,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:06,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:11:06,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:06,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-28 10:11:06,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:06,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:06,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:11:06,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:11:06,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 10:11:06,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:11:06,645 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 10:11:06,646 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1076166377] [2020-10-28 10:11:06,649 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 10:11:06,649 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 10:11:06,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250328040] [2020-10-28 10:11:06,659 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 10:11:06,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:11:06,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 10:11:06,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 10:11:06,682 INFO L87 Difference]: Start difference. First operand 240 states. Second operand 4 states. [2020-10-28 10:11:06,843 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-28 10:11:09,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:11:09,020 INFO L93 Difference]: Finished difference Result 636 states and 1083 transitions. [2020-10-28 10:11:09,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 10:11:09,023 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 88 [2020-10-28 10:11:09,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:11:09,038 INFO L225 Difference]: With dead ends: 636 [2020-10-28 10:11:09,038 INFO L226 Difference]: Without dead ends: 332 [2020-10-28 10:11:09,047 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 10:11:09,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2020-10-28 10:11:09,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 325. [2020-10-28 10:11:09,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 325 states. [2020-10-28 10:11:09,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 461 transitions. [2020-10-28 10:11:09,139 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 461 transitions. Word has length 88 [2020-10-28 10:11:09,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:11:09,140 INFO L481 AbstractCegarLoop]: Abstraction has 325 states and 461 transitions. [2020-10-28 10:11:09,140 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 10:11:09,140 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 461 transitions. [2020-10-28 10:11:09,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-28 10:11:09,147 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:11:09,148 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:11:09,148 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 10:11:09,148 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:11:09,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:11:09,149 INFO L82 PathProgramCache]: Analyzing trace with hash -1195575690, now seen corresponding path program 1 times [2020-10-28 10:11:09,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:11:09,150 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [812707360] [2020-10-28 10:11:09,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:11:09,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:09,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:09,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:10,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:10,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-28 10:11:10,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 10:11:10,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 964 [2020-10-28 10:11:10,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:10,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:10,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:11:10,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-28 10:11:10,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-28 10:11:10,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:11:10,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:11:10,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:10,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:10,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:10,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:11:10,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:10,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 10:11:10,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:10,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:10,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:11:10,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:11:10,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:11:10,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:11:10,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:11:10,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:10,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:10,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:10,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-28 10:11:10,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:10,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-28 10:11:10,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:10,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:10,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:11:10,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:11:10,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 10:11:10,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:11:10,479 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 10:11:10,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [812707360] [2020-10-28 10:11:10,480 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:11:10,480 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 10:11:10,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434935464] [2020-10-28 10:11:10,482 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 10:11:10,482 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:11:10,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 10:11:10,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 10:11:10,483 INFO L87 Difference]: Start difference. First operand 325 states and 461 transitions. Second operand 5 states. [2020-10-28 10:11:12,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:11:12,354 INFO L93 Difference]: Finished difference Result 944 states and 1355 transitions. [2020-10-28 10:11:12,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 10:11:12,355 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 110 [2020-10-28 10:11:12,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:11:12,359 INFO L225 Difference]: With dead ends: 944 [2020-10-28 10:11:12,359 INFO L226 Difference]: Without dead ends: 327 [2020-10-28 10:11:12,362 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 10:11:12,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-10-28 10:11:12,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 320. [2020-10-28 10:11:12,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 320 states. [2020-10-28 10:11:12,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 435 transitions. [2020-10-28 10:11:12,391 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 435 transitions. Word has length 110 [2020-10-28 10:11:12,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:11:12,391 INFO L481 AbstractCegarLoop]: Abstraction has 320 states and 435 transitions. [2020-10-28 10:11:12,391 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 10:11:12,392 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 435 transitions. [2020-10-28 10:11:12,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-28 10:11:12,397 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:11:12,397 INFO L422 BasicCegarLoop]: trace histogram [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 10:11:12,397 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 10:11:12,398 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:11:12,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:11:12,398 INFO L82 PathProgramCache]: Analyzing trace with hash -764433471, now seen corresponding path program 1 times [2020-10-28 10:11:12,398 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:11:12,399 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1268420470] [2020-10-28 10:11:12,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:11:12,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:12,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:12,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:12,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:14,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:14,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-28 10:11:14,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 10:11:14,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2110 [2020-10-28 10:11:14,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:14,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:14,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:11:14,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-28 10:11:14,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-28 10:11:14,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:11:14,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:11:14,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:14,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:14,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:14,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:11:14,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:14,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 10:11:14,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:14,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:14,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:11:14,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:11:14,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:11:14,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:11:14,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:11:14,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:14,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:14,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:14,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-28 10:11:14,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:14,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-28 10:11:14,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:14,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:14,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:11:14,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:11:14,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-28 10:11:14,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:11:14,865 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 10:11:14,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1268420470] [2020-10-28 10:11:14,867 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:11:14,867 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-28 10:11:14,868 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285412855] [2020-10-28 10:11:14,869 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 10:11:14,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:11:14,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 10:11:14,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-28 10:11:14,871 INFO L87 Difference]: Start difference. First operand 320 states and 435 transitions. Second operand 6 states. [2020-10-28 10:11:17,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:11:17,690 INFO L93 Difference]: Finished difference Result 1237 states and 1750 transitions. [2020-10-28 10:11:17,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 10:11:17,698 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 111 [2020-10-28 10:11:17,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:11:17,705 INFO L225 Difference]: With dead ends: 1237 [2020-10-28 10:11:17,705 INFO L226 Difference]: Without dead ends: 923 [2020-10-28 10:11:17,707 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-28 10:11:17,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2020-10-28 10:11:17,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 908. [2020-10-28 10:11:17,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 908 states. [2020-10-28 10:11:17,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1172 transitions. [2020-10-28 10:11:17,762 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1172 transitions. Word has length 111 [2020-10-28 10:11:17,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:11:17,763 INFO L481 AbstractCegarLoop]: Abstraction has 908 states and 1172 transitions. [2020-10-28 10:11:17,763 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 10:11:17,763 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1172 transitions. [2020-10-28 10:11:17,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-28 10:11:17,770 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:11:17,771 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:11:17,771 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 10:11:17,771 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:11:17,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:11:17,772 INFO L82 PathProgramCache]: Analyzing trace with hash 1977178634, now seen corresponding path program 1 times [2020-10-28 10:11:17,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:11:17,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1675627726] [2020-10-28 10:11:17,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:11:17,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:17,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:18,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:18,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-28 10:11:18,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:18,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 324 [2020-10-28 10:11:18,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:18,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:18,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 10:11:18,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 10:11:18,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-28 10:11:18,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:11:18,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:11:18,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:18,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:18,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:18,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:11:18,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:18,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 10:11:18,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:18,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:18,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:11:18,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:11:18,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 10:11:18,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:11:18,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:11:18,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:18,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:18,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:18,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-28 10:11:18,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:18,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-28 10:11:18,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:18,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:18,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:11:18,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 10:11:18,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 10:11:18,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:11:18,404 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 10:11:18,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1675627726] [2020-10-28 10:11:18,404 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 10:11:18,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 10:11:18,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094152979] [2020-10-28 10:11:18,405 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 10:11:18,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:11:18,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 10:11:18,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 10:11:18,407 INFO L87 Difference]: Start difference. First operand 908 states and 1172 transitions. Second operand 7 states. [2020-10-28 10:11:20,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:11:20,371 INFO L93 Difference]: Finished difference Result 1834 states and 2393 transitions. [2020-10-28 10:11:20,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 10:11:20,371 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 116 [2020-10-28 10:11:20,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:11:20,378 INFO L225 Difference]: With dead ends: 1834 [2020-10-28 10:11:20,378 INFO L226 Difference]: Without dead ends: 932 [2020-10-28 10:11:20,382 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-28 10:11:20,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 932 states. [2020-10-28 10:11:20,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 932 to 925. [2020-10-28 10:11:20,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 925 states. [2020-10-28 10:11:20,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1105 transitions. [2020-10-28 10:11:20,425 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1105 transitions. Word has length 116 [2020-10-28 10:11:20,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:11:20,426 INFO L481 AbstractCegarLoop]: Abstraction has 925 states and 1105 transitions. [2020-10-28 10:11:20,426 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 10:11:20,426 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1105 transitions. [2020-10-28 10:11:20,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-28 10:11:20,429 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:11:20,430 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:11:20,430 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 10:11:20,430 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:11:20,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:11:20,431 INFO L82 PathProgramCache]: Analyzing trace with hash -1421248343, now seen corresponding path program 1 times [2020-10-28 10:11:20,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:11:20,431 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1990705053] [2020-10-28 10:11:20,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:11:20,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:20,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:20,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:20,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-28 10:11:20,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:20,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 334 [2020-10-28 10:11:20,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:20,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:20,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:11:20,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-28 10:11:20,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-28 10:11:20,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:11:20,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:11:20,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:20,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:20,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:20,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:11:20,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:20,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 10:11:20,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:20,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:20,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:11:20,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:11:20,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:11:20,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:11:20,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:11:20,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:20,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:20,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:20,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 10:11:20,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:20,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 10:11:20,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:20,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:20,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:11:20,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:11:20,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 10:11:20,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:11:20,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-28 10:11:21,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:21,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:21,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:21,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-28 10:11:21,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:21,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-28 10:11:21,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:21,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:21,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:11:21,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 10:11:21,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 10:11:21,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:11:21,159 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 37 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 10:11:21,160 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1990705053] [2020-10-28 10:11:21,169 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:11:21,170 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 10:11:21,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330691740] [2020-10-28 10:11:21,174 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 10:11:21,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:11:21,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 10:11:21,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 10:11:21,175 INFO L87 Difference]: Start difference. First operand 925 states and 1105 transitions. Second operand 7 states. [2020-10-28 10:11:22,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:11:22,870 INFO L93 Difference]: Finished difference Result 1851 states and 2217 transitions. [2020-10-28 10:11:22,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 10:11:22,875 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 125 [2020-10-28 10:11:22,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:11:22,885 INFO L225 Difference]: With dead ends: 1851 [2020-10-28 10:11:22,885 INFO L226 Difference]: Without dead ends: 932 [2020-10-28 10:11:22,889 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-28 10:11:22,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 932 states. [2020-10-28 10:11:22,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 932 to 925. [2020-10-28 10:11:22,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 925 states. [2020-10-28 10:11:22,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1079 transitions. [2020-10-28 10:11:22,931 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1079 transitions. Word has length 125 [2020-10-28 10:11:22,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:11:22,933 INFO L481 AbstractCegarLoop]: Abstraction has 925 states and 1079 transitions. [2020-10-28 10:11:22,933 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 10:11:22,933 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1079 transitions. [2020-10-28 10:11:22,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-28 10:11:22,940 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:11:22,941 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:11:22,941 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 10:11:22,941 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:11:22,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:11:22,942 INFO L82 PathProgramCache]: Analyzing trace with hash 872000993, now seen corresponding path program 1 times [2020-10-28 10:11:22,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:11:22,942 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1040426514] [2020-10-28 10:11:22,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:11:22,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:22,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:23,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:23,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:23,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-28 10:11:23,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 10:11:23,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 532 [2020-10-28 10:11:23,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:23,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:23,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 10:11:23,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-28 10:11:23,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-28 10:11:23,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 16 [2020-10-28 10:11:23,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:11:23,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:23,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:23,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:23,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:11:23,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:23,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 10:11:23,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:23,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:23,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:11:23,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:11:23,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:11:23,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:11:23,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:11:23,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:23,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:23,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:23,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-28 10:11:23,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:23,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 10:11:23,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:23,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:23,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:11:23,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:11:23,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 10:11:23,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:11:23,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-28 10:11:23,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:23,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:23,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:23,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:23,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-28 10:11:23,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 10:11:23,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-28 10:11:23,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:23,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:23,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:11:23,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 10:11:23,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 10:11:23,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:11:23,951 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 18 proven. 25 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-28 10:11:23,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1040426514] [2020-10-28 10:11:23,953 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:11:23,953 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 10:11:23,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861286433] [2020-10-28 10:11:23,954 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 10:11:23,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:11:23,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 10:11:23,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 10:11:23,962 INFO L87 Difference]: Start difference. First operand 925 states and 1079 transitions. Second operand 7 states. [2020-10-28 10:11:27,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:11:27,046 INFO L93 Difference]: Finished difference Result 3000 states and 3794 transitions. [2020-10-28 10:11:27,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 10:11:27,047 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 129 [2020-10-28 10:11:27,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:11:27,062 INFO L225 Difference]: With dead ends: 3000 [2020-10-28 10:11:27,062 INFO L226 Difference]: Without dead ends: 2080 [2020-10-28 10:11:27,067 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 10:11:27,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2080 states. [2020-10-28 10:11:27,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2080 to 2008. [2020-10-28 10:11:27,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2008 states. [2020-10-28 10:11:27,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2008 states to 2008 states and 2348 transitions. [2020-10-28 10:11:27,168 INFO L78 Accepts]: Start accepts. Automaton has 2008 states and 2348 transitions. Word has length 129 [2020-10-28 10:11:27,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:11:27,169 INFO L481 AbstractCegarLoop]: Abstraction has 2008 states and 2348 transitions. [2020-10-28 10:11:27,169 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 10:11:27,169 INFO L276 IsEmpty]: Start isEmpty. Operand 2008 states and 2348 transitions. [2020-10-28 10:11:27,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-10-28 10:11:27,174 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:11:27,175 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-28 10:11:27,175 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 10:11:27,175 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:11:27,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:11:27,176 INFO L82 PathProgramCache]: Analyzing trace with hash 1217717478, now seen corresponding path program 1 times [2020-10-28 10:11:27,176 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:11:27,176 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1962785799] [2020-10-28 10:11:27,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:11:27,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:27,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:27,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:28,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:28,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-28 10:11:28,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 10:11:28,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1276 [2020-10-28 10:11:28,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:28,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:28,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:11:28,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-28 10:11:28,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-28 10:11:28,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:11:28,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:11:28,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:28,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:28,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:28,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:11:28,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:28,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 10:11:28,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:28,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:28,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:11:28,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:11:28,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:11:28,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:11:28,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:11:28,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:28,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:28,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:28,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-28 10:11:28,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:28,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 10:11:28,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:28,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:28,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:11:28,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:11:28,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-28 10:11:28,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:11:28,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-28 10:11:28,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:28,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:28,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:28,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-28 10:11:28,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:28,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-28 10:11:28,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:28,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:28,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:11:28,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 10:11:28,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 10:11:28,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 10:11:28,828 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 65 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 10:11:28,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1962785799] [2020-10-28 10:11:28,829 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:11:28,829 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 10:11:28,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921797408] [2020-10-28 10:11:28,830 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 10:11:28,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:11:28,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 10:11:28,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 10:11:28,832 INFO L87 Difference]: Start difference. First operand 2008 states and 2348 transitions. Second operand 7 states. [2020-10-28 10:11:31,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:11:31,656 INFO L93 Difference]: Finished difference Result 4248 states and 5246 transitions. [2020-10-28 10:11:31,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 10:11:31,656 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 139 [2020-10-28 10:11:31,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:11:31,675 INFO L225 Difference]: With dead ends: 4248 [2020-10-28 10:11:31,675 INFO L226 Difference]: Without dead ends: 2559 [2020-10-28 10:11:31,682 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 10:11:31,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2559 states. [2020-10-28 10:11:31,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2559 to 2490. [2020-10-28 10:11:31,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2490 states. [2020-10-28 10:11:31,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2490 states to 2490 states and 2958 transitions. [2020-10-28 10:11:31,800 INFO L78 Accepts]: Start accepts. Automaton has 2490 states and 2958 transitions. Word has length 139 [2020-10-28 10:11:31,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:11:31,800 INFO L481 AbstractCegarLoop]: Abstraction has 2490 states and 2958 transitions. [2020-10-28 10:11:31,800 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 10:11:31,800 INFO L276 IsEmpty]: Start isEmpty. Operand 2490 states and 2958 transitions. [2020-10-28 10:11:31,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-10-28 10:11:31,807 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:11:31,808 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:11:31,808 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 10:11:31,808 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:11:31,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:11:31,809 INFO L82 PathProgramCache]: Analyzing trace with hash 1726409110, now seen corresponding path program 1 times [2020-10-28 10:11:31,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:11:31,810 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [901353005] [2020-10-28 10:11:31,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:11:31,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:31,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:31,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:32,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:34,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:34,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-28 10:11:34,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 10:11:34,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2204 [2020-10-28 10:11:34,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:34,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:34,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:11:34,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-28 10:11:34,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-28 10:11:34,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:11:34,206 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-28 10:11:34,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:11:34,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:34,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:34,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:34,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:11:34,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:34,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 10:11:34,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:34,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:34,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:11:34,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:11:34,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:11:34,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:11:34,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:11:34,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:34,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:34,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:34,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 10:11:34,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:34,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 10:11:34,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:34,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:34,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:11:34,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:11:34,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 10:11:34,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:11:34,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-28 10:11:34,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:34,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:34,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:34,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-28 10:11:34,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:34,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-28 10:11:34,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:34,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:34,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:11:34,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 10:11:34,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-28 10:11:34,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:11:34,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-28 10:11:34,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:34,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:34,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:34,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 10:11:34,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:34,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 10:11:34,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:34,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:34,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:11:34,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-28 10:11:34,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:11:34,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:11:34,442 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 57 proven. 13 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-28 10:11:34,442 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [901353005] [2020-10-28 10:11:34,443 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:11:34,443 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 10:11:34,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889450336] [2020-10-28 10:11:34,444 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 10:11:34,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:11:34,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 10:11:34,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-28 10:11:34,445 INFO L87 Difference]: Start difference. First operand 2490 states and 2958 transitions. Second operand 8 states. [2020-10-28 10:11:35,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:11:35,539 INFO L93 Difference]: Finished difference Result 4191 states and 5035 transitions. [2020-10-28 10:11:35,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 10:11:35,550 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 144 [2020-10-28 10:11:35,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:11:35,559 INFO L225 Difference]: With dead ends: 4191 [2020-10-28 10:11:35,559 INFO L226 Difference]: Without dead ends: 2000 [2020-10-28 10:11:35,566 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-28 10:11:35,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2000 states. [2020-10-28 10:11:35,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2000 to 1986. [2020-10-28 10:11:35,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1986 states. [2020-10-28 10:11:35,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1986 states to 1986 states and 2257 transitions. [2020-10-28 10:11:35,669 INFO L78 Accepts]: Start accepts. Automaton has 1986 states and 2257 transitions. Word has length 144 [2020-10-28 10:11:35,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:11:35,669 INFO L481 AbstractCegarLoop]: Abstraction has 1986 states and 2257 transitions. [2020-10-28 10:11:35,669 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 10:11:35,669 INFO L276 IsEmpty]: Start isEmpty. Operand 1986 states and 2257 transitions. [2020-10-28 10:11:35,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-10-28 10:11:35,675 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:11:35,675 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:11:35,675 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 10:11:35,676 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:11:35,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:11:35,676 INFO L82 PathProgramCache]: Analyzing trace with hash -1019374059, now seen corresponding path program 1 times [2020-10-28 10:11:35,677 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:11:35,677 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [175372757] [2020-10-28 10:11:35,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:11:35,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:35,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:35,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:35,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:36,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:39,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:39,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-10-28 10:11:39,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 10:11:39,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3810 [2020-10-28 10:11:39,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:39,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:39,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 10:11:39,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-28 10:11:39,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-28 10:11:39,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:11:39,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:11:39,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:39,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:39,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:39,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:11:39,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:39,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 10:11:39,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:39,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:39,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:11:39,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:11:39,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:11:39,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:11:39,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:11:39,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:39,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:39,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:39,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 10:11:39,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:39,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 10:11:39,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:39,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:39,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:11:39,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:11:39,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:11:39,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:11:39,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-28 10:11:39,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:39,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:39,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:39,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 10:11:39,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:39,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 10:11:39,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:39,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:39,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:11:39,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:11:39,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 10:11:39,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:11:39,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-28 10:11:39,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:39,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:39,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:39,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:39,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-28 10:11:39,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 10:11:39,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-28 10:11:39,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:39,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:39,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:11:39,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 10:11:39,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 10:11:39,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:11:39,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-28 10:11:39,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:39,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:39,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:39,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 10:11:39,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:39,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-28 10:11:39,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:39,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:39,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:11:39,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 10:11:39,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 10:11:39,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:11:40,117 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 91 proven. 6 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-28 10:11:40,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [175372757] [2020-10-28 10:11:40,125 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:11:40,126 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 10:11:40,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187484780] [2020-10-28 10:11:40,127 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 10:11:40,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:11:40,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 10:11:40,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-28 10:11:40,130 INFO L87 Difference]: Start difference. First operand 1986 states and 2257 transitions. Second operand 8 states. [2020-10-28 10:11:42,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:11:42,415 INFO L93 Difference]: Finished difference Result 3660 states and 4173 transitions. [2020-10-28 10:11:42,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 10:11:42,416 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 155 [2020-10-28 10:11:42,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:11:42,425 INFO L225 Difference]: With dead ends: 3660 [2020-10-28 10:11:42,425 INFO L226 Difference]: Without dead ends: 1974 [2020-10-28 10:11:42,430 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-10-28 10:11:42,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1974 states. [2020-10-28 10:11:42,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1974 to 1969. [2020-10-28 10:11:42,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1969 states. [2020-10-28 10:11:42,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1969 states to 1969 states and 2167 transitions. [2020-10-28 10:11:42,492 INFO L78 Accepts]: Start accepts. Automaton has 1969 states and 2167 transitions. Word has length 155 [2020-10-28 10:11:42,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:11:42,492 INFO L481 AbstractCegarLoop]: Abstraction has 1969 states and 2167 transitions. [2020-10-28 10:11:42,492 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 10:11:42,492 INFO L276 IsEmpty]: Start isEmpty. Operand 1969 states and 2167 transitions. [2020-10-28 10:11:42,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-28 10:11:42,498 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:11:42,499 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2020-10-28 10:11:42,499 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 10:11:42,499 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:11:42,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:11:42,500 INFO L82 PathProgramCache]: Analyzing trace with hash -714450867, now seen corresponding path program 1 times [2020-10-28 10:11:42,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:11:42,500 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1686141779] [2020-10-28 10:11:42,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:11:42,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:42,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:42,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:42,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:44,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:44,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-28 10:11:44,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 10:11:44,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2429 [2020-10-28 10:11:44,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:44,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:44,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 10:11:44,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-28 10:11:44,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-28 10:11:44,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:11:45,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:11:45,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:45,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:45,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:45,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:11:45,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:45,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 10:11:45,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:45,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:45,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:11:45,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:11:45,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:11:45,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:11:45,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:11:45,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:45,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:45,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:45,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 10:11:45,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:45,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 10:11:45,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:45,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:45,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:11:45,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:11:45,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 10:11:45,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:11:45,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-28 10:11:45,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:45,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:45,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:45,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:45,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 10:11:45,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 10:11:45,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 10:11:45,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:45,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:45,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:11:45,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:11:45,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 10:11:45,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:11:45,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-28 10:11:45,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:45,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:45,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:45,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-28 10:11:45,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:45,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-28 10:11:45,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:45,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:45,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:11:45,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 10:11:45,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 10:11:45,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:11:45,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-28 10:11:45,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:45,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:45,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:45,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 10:11:45,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:45,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 10:11:45,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:45,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:45,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:11:45,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-28 10:11:45,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:11:45,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:11:45,360 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 82 proven. 17 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-10-28 10:11:45,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1686141779] [2020-10-28 10:11:45,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:11:45,360 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 10:11:45,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435352273] [2020-10-28 10:11:45,361 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 10:11:45,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:11:45,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 10:11:45,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-28 10:11:45,363 INFO L87 Difference]: Start difference. First operand 1969 states and 2167 transitions. Second operand 8 states. [2020-10-28 10:11:46,640 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-28 10:11:47,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:11:47,704 INFO L93 Difference]: Finished difference Result 4809 states and 5385 transitions. [2020-10-28 10:11:47,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 10:11:47,705 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 159 [2020-10-28 10:11:47,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:11:47,714 INFO L225 Difference]: With dead ends: 4809 [2020-10-28 10:11:47,714 INFO L226 Difference]: Without dead ends: 2085 [2020-10-28 10:11:47,720 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-10-28 10:11:47,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2085 states. [2020-10-28 10:11:47,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2085 to 1937. [2020-10-28 10:11:47,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1937 states. [2020-10-28 10:11:47,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1937 states to 1937 states and 2049 transitions. [2020-10-28 10:11:47,786 INFO L78 Accepts]: Start accepts. Automaton has 1937 states and 2049 transitions. Word has length 159 [2020-10-28 10:11:47,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:11:47,786 INFO L481 AbstractCegarLoop]: Abstraction has 1937 states and 2049 transitions. [2020-10-28 10:11:47,786 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 10:11:47,786 INFO L276 IsEmpty]: Start isEmpty. Operand 1937 states and 2049 transitions. [2020-10-28 10:11:47,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-10-28 10:11:47,792 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:11:47,792 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:11:47,793 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 10:11:47,793 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:11:47,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:11:47,793 INFO L82 PathProgramCache]: Analyzing trace with hash -587621283, now seen corresponding path program 1 times [2020-10-28 10:11:47,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:11:47,794 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [239645585] [2020-10-28 10:11:47,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:11:47,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-28 10:11:47,846 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-28 10:11:47,846 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-28 10:11:47,852 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 10:11:47,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 10:11:47 BoogieIcfgContainer [2020-10-28 10:11:47,916 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 10:11:47,918 INFO L168 Benchmark]: Toolchain (without parser) took 46283.74 ms. Allocated memory was 151.0 MB in the beginning and 685.8 MB in the end (delta: 534.8 MB). Free memory was 125.1 MB in the beginning and 471.5 MB in the end (delta: -346.4 MB). Peak memory consumption was 189.1 MB. Max. memory is 8.0 GB. [2020-10-28 10:11:47,919 INFO L168 Benchmark]: CDTParser took 0.68 ms. Allocated memory is still 151.0 MB. Free memory is still 123.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 10:11:47,920 INFO L168 Benchmark]: CACSL2BoogieTranslator took 760.97 ms. Allocated memory is still 151.0 MB. Free memory was 124.5 MB in the beginning and 131.3 MB in the end (delta: -6.8 MB). Peak memory consumption was 28.8 MB. Max. memory is 8.0 GB. [2020-10-28 10:11:47,923 INFO L168 Benchmark]: Boogie Preprocessor took 183.20 ms. Allocated memory is still 151.0 MB. Free memory was 131.3 MB in the beginning and 126.3 MB in the end (delta: 5.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-28 10:11:47,927 INFO L168 Benchmark]: RCFGBuilder took 1706.88 ms. Allocated memory is still 151.0 MB. Free memory was 126.3 MB in the beginning and 106.0 MB in the end (delta: 20.3 MB). Peak memory consumption was 82.7 MB. Max. memory is 8.0 GB. [2020-10-28 10:11:47,930 INFO L168 Benchmark]: TraceAbstraction took 43620.49 ms. Allocated memory was 151.0 MB in the beginning and 685.8 MB in the end (delta: 534.8 MB). Free memory was 105.5 MB in the beginning and 471.5 MB in the end (delta: -366.0 MB). Peak memory consumption was 168.8 MB. Max. memory is 8.0 GB. [2020-10-28 10:11:47,936 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.68 ms. Allocated memory is still 151.0 MB. Free memory is still 123.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 760.97 ms. Allocated memory is still 151.0 MB. Free memory was 124.5 MB in the beginning and 131.3 MB in the end (delta: -6.8 MB). Peak memory consumption was 28.8 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 183.20 ms. Allocated memory is still 151.0 MB. Free memory was 131.3 MB in the beginning and 126.3 MB in the end (delta: 5.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1706.88 ms. Allocated memory is still 151.0 MB. Free memory was 126.3 MB in the beginning and 106.0 MB in the end (delta: 20.3 MB). Peak memory consumption was 82.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 43620.49 ms. Allocated memory was 151.0 MB in the beginning and 685.8 MB in the end (delta: 534.8 MB). Free memory was 105.5 MB in the beginning and 471.5 MB in the end (delta: -366.0 MB). Peak memory consumption was 168.8 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 a= 1; [L10] int e= 5; [L11] int d= 4; [L12] int f= 6; [L13] int c= 3; [L16] int u = 21; [L17] int v = 22; [L18] int w = 23; [L19] int x = 24; [L20] int y = 25; [L21] int z = 26; [L24] int a25 = 0; [L25] int a11 = 0; [L26] int a28 = 7; [L27] int a19 = 1; [L28] int a21 = 1; [L29] int a17 = 8; [L605] int output = -1; [L608] COND TRUE 1 [L611] int input; [L612] input = __VERIFIER_nondet_int() [L613] COND FALSE !((input != 1) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L616] CALL, EXPR calculate_output(input) [L32] COND FALSE !((((!(a11==1)&&((a19==1)&&((input==4)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))))&&(a21==1))&&(a17==8))) [L37] COND FALSE !(((a17==8)&&((((!(a11==1)&&((a21==1)&&(input==6)))&&(a28==7))&&(a19==1))&&!(a25==1)))) [L40] COND FALSE !(((a21==1)&&((a19==1)&&((((((a25==1)||!(a25==1))&&(input==3))&&(a17==9))&&(a11==1))&&(a28==9))))) [L44] COND FALSE !(((a28==9)&&(!(a19==1)&&((a21==1)&&((((input==4)&&!(a25==1))&&!(a11==1))&&(a17==8)))))) [L49] COND FALSE !(((((a17==8)&&((((input==1)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a19==1)))&&(a21==1))&&(a28==10))) [L52] COND FALSE !(((a19==1)&&(!(a25==1)&&((a21==1)&&((((input==1)&&(a17==8))&&!(a11==1))&&(a28==7)))))) [L56] COND FALSE !(((((!(a19==1)&&((input==1)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))))&&(a21==1))&&(a17==8))&&!(a11==1))) [L61] COND FALSE !(((a19==1)&&(((((input==1)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1)))))&&(a11==1))&&(a21==1))&&(a17==9)))) [L67] COND FALSE !(((a19==1)&&(((a17==8)&&(((input==6)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))&&!(a11==1)))&&(a21==1)))) [L71] COND FALSE !((!(a11==1)&&((((a21==1)&&((input==1)&&(((a28==8)&&!(a25==1))||((a25==1)&&(a28==9)))))&&!(a19==1))&&(a17==8)))) [L76] COND FALSE !((!(a19==1)&&(((((a17==8)&&((a25==1)&&(input==3)))&&(a28==10))&&!(a11==1))&&(a21==1)))) [L84] COND FALSE !((((!(a19==1)&&((a21==1)&&((((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1))))&&(input==4))))&&!(a11==1))&&(a17==8))) [L93] COND FALSE !(((a17==8)&&((a21==1)&&((a25==1)&&((a19==1)&&(!(a11==1)&&((a28==11)&&(input==3)))))))) [L97] COND FALSE !(((a28==9)&&(((!(a19==1)&&(((input==3)&&!(a11==1))&&(a17==8)))&&!(a25==1))&&(a21==1)))) [L101] COND FALSE !(((!(a11==1)&&(((a28==11)&&((a25==1)&&((input==1)&&(a19==1))))&&(a17==8)))&&(a21==1))) [L108] COND FALSE !((((a11==1)&&((((((a25==1)&&(a28==8))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7))))&&(input==6))&&(a19==1))&&(a17==9)))&&(a21==1))) [L115] COND FALSE !(((a17==8)&&((a21==1)&&(!(a11==1)&&(!(a19==1)&&(((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==3))))))) [L121] COND FALSE !((((((a21==1)&&((a28==10)&&((input==1)&&(a25==1))))&&!(a11==1))&&(a17==8))&&!(a19==1))) [L125] COND FALSE !((!(a11==1)&&(!(a19==1)&&(((a17==8)&&((input==6)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a28==8)&&(a25==1)))))&&(a21==1))))) [L132] COND FALSE !(((((a17==8)&&(!(a19==1)&&(((input==6)&&(a21==1))&&!(a25==1))))&&!(a11==1))&&(a28==9))) [L136] COND FALSE !((!(a11==1)&&((!(a25==1)&&(((a21==1)&&((input==1)&&(a19==1)))&&(a17==8)))&&(a28==11)))) [L141] COND FALSE !((((a11==1)&&(((a19==1)&&((a21==1)&&(((a25==1)||!(a25==1))&&(input==4))))&&(a17==9)))&&(a28==9))) [L145] COND FALSE !(((!(a11==1)&&((a28==9)&&(((!(a19==1)&&(input==5))&&!(a25==1))&&(a21==1))))&&(a17==8))) [L150] COND FALSE !(((!(a11==1)&&(((a17==8)&&(((((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))||((a28==8)&&(a25==1)))&&(input==3)))&&!(a19==1)))&&(a21==1))) [L156] COND FALSE !(((a21==1)&&(!(a19==1)&&((((input==5)&&(((a28==8)&&(a25==1))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7)))))&&!(a11==1))&&(a17==8))))) [L161] COND FALSE !((((a17==9)&&(((a28==8)&&(((input==1)&&(a19==1))&&!(a25==1)))&&(a11==1)))&&(a21==1))) [L167] COND FALSE !((((a21==1)&&((a19==1)&&((a28==7)&&((a17==8)&&(!(a25==1)&&(input==3))))))&&!(a11==1))) [L171] COND FALSE !(((a28==11)&&(((a17==8)&&((((input==6)&&(a21==1))&&(a19==1))&&!(a25==1)))&&!(a11==1)))) [L177] COND FALSE !(((!(a11==1)&&(((a17==8)&&((a21==1)&&((input==3)&&(a28==8))))&&(a19==1)))&&(a25==1))) [L181] COND FALSE !((((a21==1)&&(((a19==1)&&(((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))&&(input==4)))&&(a11==1)))&&(a17==9))) [L187] COND FALSE !((((!(a11==1)&&((a17==8)&&(((input==4)&&(a19==1))&&(a28==8))))&&(a21==1))&&(a25==1))) [L189] COND FALSE !(((a19==1)&&((((((input==4)&&(a21==1))&&(a28==9))&&!(a25==1))&&!(a11==1))&&(a17==8)))) [L191] COND FALSE !(((a17==8)&&((((((input==1)&&(a21==1))&&!(a11==1))&&(a19==1))&&!(a25==1))&&(a28==9)))) [L193] COND FALSE !((((((((input==4)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a21==1))&&(a17==8))&&(a28==10))&&(a19==1))) [L196] COND FALSE !(((!(a25==1)&&((a11==1)&&((a28==8)&&(((a17==9)&&(input==4))&&(a19==1)))))&&(a21==1))) [L200] COND FALSE !((!(a19==1)&&((a17==8)&&((a28==10)&&(((a25==1)&&(!(a11==1)&&(input==5)))&&(a21==1)))))) [L204] COND FALSE !((((((a21==1)&&((input==1)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))))&&(a17==8))&&!(a11==1))&&(a19==1))) [L214] COND FALSE !(((a21==1)&&((((a19==1)&&((a25==1)&&((a28==11)&&(input==6))))&&!(a11==1))&&(a17==8)))) [L217] COND FALSE !((!(a11==1)&&((a19==1)&&((a28==10)&&(((((a25==1)||!(a25==1))&&(input==5))&&(a17==8))&&(a21==1)))))) [L220] COND FALSE !((((((a17==9)&&((((a25==1)||!(a25==1))&&(input==6))&&(a11==1)))&&(a19==1))&&(a21==1))&&(a28==9))) [L225] COND FALSE !((((a17==8)&&(((((input==6)&&(a25==1))&&!(a19==1))&&!(a11==1))&&(a28==10)))&&(a21==1))) [L227] COND FALSE !(((!(a19==1)&&((a17==8)&&(!(a11==1)&&((input==1)&&((((a28==10)&&!(a25==1))||((a25==1)&&(a28==11)))||(!(a25==1)&&(a28==11)))))))&&(a21==1))) [L234] COND FALSE !((((((((input==1)&&(a21==1))&&(a28==9))&&!(a19==1))&&!(a25==1))&&(a17==8))&&!(a11==1))) [L236] COND TRUE ((a17==8)&&(((!(a11==1)&&((!(a25==1)&&(input==4))&&(a19==1)))&&(a28==7))&&(a21==1))) [L237] a28 = 9 [L238] return 23; [L616] RET, EXPR calculate_output(input) [L616] output = calculate_output(input) [L608] COND TRUE 1 [L611] int input; [L612] input = __VERIFIER_nondet_int() [L613] COND FALSE !((input != 1) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L616] CALL, EXPR calculate_output(input) [L32] COND FALSE !((((!(a11==1)&&((a19==1)&&((input==4)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))))&&(a21==1))&&(a17==8))) [L37] COND FALSE !(((a17==8)&&((((!(a11==1)&&((a21==1)&&(input==6)))&&(a28==7))&&(a19==1))&&!(a25==1)))) [L40] COND FALSE !(((a21==1)&&((a19==1)&&((((((a25==1)||!(a25==1))&&(input==3))&&(a17==9))&&(a11==1))&&(a28==9))))) [L44] COND FALSE !(((a28==9)&&(!(a19==1)&&((a21==1)&&((((input==4)&&!(a25==1))&&!(a11==1))&&(a17==8)))))) [L49] COND FALSE !(((((a17==8)&&((((input==1)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a19==1)))&&(a21==1))&&(a28==10))) [L52] COND FALSE !(((a19==1)&&(!(a25==1)&&((a21==1)&&((((input==1)&&(a17==8))&&!(a11==1))&&(a28==7)))))) [L56] COND FALSE !(((((!(a19==1)&&((input==1)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))))&&(a21==1))&&(a17==8))&&!(a11==1))) [L61] COND FALSE !(((a19==1)&&(((((input==1)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1)))))&&(a11==1))&&(a21==1))&&(a17==9)))) [L67] COND FALSE !(((a19==1)&&(((a17==8)&&(((input==6)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))&&!(a11==1)))&&(a21==1)))) [L71] COND FALSE !((!(a11==1)&&((((a21==1)&&((input==1)&&(((a28==8)&&!(a25==1))||((a25==1)&&(a28==9)))))&&!(a19==1))&&(a17==8)))) [L76] COND FALSE !((!(a19==1)&&(((((a17==8)&&((a25==1)&&(input==3)))&&(a28==10))&&!(a11==1))&&(a21==1)))) [L84] COND FALSE !((((!(a19==1)&&((a21==1)&&((((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1))))&&(input==4))))&&!(a11==1))&&(a17==8))) [L93] COND FALSE !(((a17==8)&&((a21==1)&&((a25==1)&&((a19==1)&&(!(a11==1)&&((a28==11)&&(input==3)))))))) [L97] COND FALSE !(((a28==9)&&(((!(a19==1)&&(((input==3)&&!(a11==1))&&(a17==8)))&&!(a25==1))&&(a21==1)))) [L101] COND FALSE !(((!(a11==1)&&(((a28==11)&&((a25==1)&&((input==1)&&(a19==1))))&&(a17==8)))&&(a21==1))) [L108] COND FALSE !((((a11==1)&&((((((a25==1)&&(a28==8))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7))))&&(input==6))&&(a19==1))&&(a17==9)))&&(a21==1))) [L115] COND FALSE !(((a17==8)&&((a21==1)&&(!(a11==1)&&(!(a19==1)&&(((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==3))))))) [L121] COND FALSE !((((((a21==1)&&((a28==10)&&((input==1)&&(a25==1))))&&!(a11==1))&&(a17==8))&&!(a19==1))) [L125] COND FALSE !((!(a11==1)&&(!(a19==1)&&(((a17==8)&&((input==6)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a28==8)&&(a25==1)))))&&(a21==1))))) [L132] COND FALSE !(((((a17==8)&&(!(a19==1)&&(((input==6)&&(a21==1))&&!(a25==1))))&&!(a11==1))&&(a28==9))) [L136] COND FALSE !((!(a11==1)&&((!(a25==1)&&(((a21==1)&&((input==1)&&(a19==1)))&&(a17==8)))&&(a28==11)))) [L141] COND FALSE !((((a11==1)&&(((a19==1)&&((a21==1)&&(((a25==1)||!(a25==1))&&(input==4))))&&(a17==9)))&&(a28==9))) [L145] COND FALSE !(((!(a11==1)&&((a28==9)&&(((!(a19==1)&&(input==5))&&!(a25==1))&&(a21==1))))&&(a17==8))) [L150] COND FALSE !(((!(a11==1)&&(((a17==8)&&(((((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))||((a28==8)&&(a25==1)))&&(input==3)))&&!(a19==1)))&&(a21==1))) [L156] COND FALSE !(((a21==1)&&(!(a19==1)&&((((input==5)&&(((a28==8)&&(a25==1))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7)))))&&!(a11==1))&&(a17==8))))) [L161] COND FALSE !((((a17==9)&&(((a28==8)&&(((input==1)&&(a19==1))&&!(a25==1)))&&(a11==1)))&&(a21==1))) [L167] COND FALSE !((((a21==1)&&((a19==1)&&((a28==7)&&((a17==8)&&(!(a25==1)&&(input==3))))))&&!(a11==1))) [L171] COND FALSE !(((a28==11)&&(((a17==8)&&((((input==6)&&(a21==1))&&(a19==1))&&!(a25==1)))&&!(a11==1)))) [L177] COND FALSE !(((!(a11==1)&&(((a17==8)&&((a21==1)&&((input==3)&&(a28==8))))&&(a19==1)))&&(a25==1))) [L181] COND FALSE !((((a21==1)&&(((a19==1)&&(((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))&&(input==4)))&&(a11==1)))&&(a17==9))) [L187] COND FALSE !((((!(a11==1)&&((a17==8)&&(((input==4)&&(a19==1))&&(a28==8))))&&(a21==1))&&(a25==1))) [L189] COND FALSE !(((a19==1)&&((((((input==4)&&(a21==1))&&(a28==9))&&!(a25==1))&&!(a11==1))&&(a17==8)))) [L191] COND FALSE !(((a17==8)&&((((((input==1)&&(a21==1))&&!(a11==1))&&(a19==1))&&!(a25==1))&&(a28==9)))) [L193] COND FALSE !((((((((input==4)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a21==1))&&(a17==8))&&(a28==10))&&(a19==1))) [L196] COND FALSE !(((!(a25==1)&&((a11==1)&&((a28==8)&&(((a17==9)&&(input==4))&&(a19==1)))))&&(a21==1))) [L200] COND FALSE !((!(a19==1)&&((a17==8)&&((a28==10)&&(((a25==1)&&(!(a11==1)&&(input==5)))&&(a21==1)))))) [L204] COND FALSE !((((((a21==1)&&((input==1)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))))&&(a17==8))&&!(a11==1))&&(a19==1))) [L214] COND FALSE !(((a21==1)&&((((a19==1)&&((a25==1)&&((a28==11)&&(input==6))))&&!(a11==1))&&(a17==8)))) [L217] COND FALSE !((!(a11==1)&&((a19==1)&&((a28==10)&&(((((a25==1)||!(a25==1))&&(input==5))&&(a17==8))&&(a21==1)))))) [L220] COND FALSE !((((((a17==9)&&((((a25==1)||!(a25==1))&&(input==6))&&(a11==1)))&&(a19==1))&&(a21==1))&&(a28==9))) [L225] COND FALSE !((((a17==8)&&(((((input==6)&&(a25==1))&&!(a19==1))&&!(a11==1))&&(a28==10)))&&(a21==1))) [L227] COND FALSE !(((!(a19==1)&&((a17==8)&&(!(a11==1)&&((input==1)&&((((a28==10)&&!(a25==1))||((a25==1)&&(a28==11)))||(!(a25==1)&&(a28==11)))))))&&(a21==1))) [L234] COND FALSE !((((((((input==1)&&(a21==1))&&(a28==9))&&!(a19==1))&&!(a25==1))&&(a17==8))&&!(a11==1))) [L236] COND FALSE !(((a17==8)&&(((!(a11==1)&&((!(a25==1)&&(input==4))&&(a19==1)))&&(a28==7))&&(a21==1)))) [L239] COND FALSE !((!(a11==1)&&(((a17==8)&&((((!(a25==1)&&(a28==11))||((!(a25==1)&&(a28==10))||((a28==11)&&(a25==1))))&&(input==3))&&(a21==1)))&&!(a19==1)))) [L250] COND FALSE !(((((!(a11==1)&&(((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==5)))&&(a21==1))&&!(a19==1))&&(a17==8))) [L255] COND FALSE !((((a17==9)&&(((((input==1)&&((a25==1)||!(a25==1)))&&(a11==1))&&(a21==1))&&(a19==1)))&&(a28==9))) [L261] COND FALSE !((!(a11==1)&&((a19==1)&&(((((a28==9)&&(input==6))&&(a21==1))&&(a17==8))&&!(a25==1))))) [L263] COND FALSE !(((a17==9)&&((a21==1)&&((a11==1)&&(((input==3)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))))&&(a19==1)))))) [L278] COND FALSE !(((a28==7)&&((a17==8)&&(!(a25==1)&&((a21==1)&&((a19==1)&&((input==5)&&!(a11==1)))))))) [L282] COND FALSE !(((a28==8)&&((a21==1)&&((!(a11==1)&&(((input==1)&&(a17==8))&&(a19==1)))&&(a25==1))))) [L285] COND FALSE !((((((a17==8)&&(((input==6)&&((a25==1)||!(a25==1)))&&(a21==1)))&&(a28==10))&&!(a11==1))&&(a19==1))) [L288] COND FALSE !(((!(a11==1)&&((!(a19==1)&&(((!(a25==1)&&(a28==11))||(((a28==10)&&!(a25==1))||((a25==1)&&(a28==11))))&&(input==5)))&&(a17==8)))&&(a21==1))) [L293] COND FALSE !(((a17==8)&&(((a21==1)&&(!(a11==1)&&((a25==1)&&((a28==8)&&(input==6)))))&&(a19==1)))) [L295] COND FALSE !((((a19==1)&&((a17==8)&&(((!(a25==1)&&(input==5))&&(a21==1))&&!(a11==1))))&&(a28==11))) [L299] COND FALSE !(((a11==1)&&(((a17==9)&&((a28==9)&&((a19==1)&&(((a25==1)||!(a25==1))&&(input==5)))))&&(a21==1)))) [L311] COND FALSE !((((((((input==3)&&(a19==1))&&(a21==1))&&(a17==8))&&!(a25==1))&&(a28==11))&&!(a11==1))) [L316] COND FALSE !(((a19==1)&&((a21==1)&&((((input==5)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))))&&(a11==1))&&(a17==9))))) [L330] COND FALSE !((((a19==1)&&(((!(a11==1)&&(((a25==1)||!(a25==1))&&(input==3)))&&(a28==10))&&(a21==1)))&&(a17==8))) [L333] COND FALSE !(((!(a11==1)&&(((((input==4)&&(a17==8))&&!(a25==1))&&(a21==1))&&(a28==11)))&&(a19==1))) [L339] COND FALSE !((((!(a19==1)&&(((input==4)&&(((!(a25==1)&&(a28==10))||((a28==11)&&(a25==1)))||(!(a25==1)&&(a28==11))))&&(a21==1)))&&(a17==8))&&!(a11==1))) [L351] COND FALSE !((!(a11==1)&&(((a17==8)&&((((a25==1)&&(input==4))&&(a19==1))&&(a28==11)))&&(a21==1)))) [L356] COND FALSE !((((((a21==1)&&((((a28==8)&&!(a25==1))||((a28==9)&&(a25==1)))&&(input==6)))&&!(a11==1))&&!(a19==1))&&(a17==8))) [L363] COND FALSE !(((a19==1)&&((((a21==1)&&((!(a25==1)&&(input==3))&&(a17==9)))&&(a28==8))&&(a11==1)))) [L370] COND FALSE !(((a17==8)&&(((a21==1)&&(((input==5)&&((!(a25==1)&&(a28==8))||((a28==9)&&(a25==1))))&&(a19==1)))&&!(a11==1)))) [L377] COND FALSE !(((a19==1)&&(((((a17==8)&&((input==5)&&!(a11==1)))&&(a21==1))&&(a25==1))&&(a28==8)))) [L380] COND FALSE !((((!(a11==1)&&((((a21==1)&&(input==4))&&(a28==10))&&(a17==8)))&&!(a19==1))&&(a25==1))) [L382] COND FALSE !(((a28==8)&&(((a19==1)&&((a11==1)&&(!(a25==1)&&((a17==9)&&(input==6)))))&&(a21==1)))) [L391] COND FALSE !((!(a11==1)&&((((a21==1)&&((input==6)&&((((a28==10)&&!(a25==1))||((a25==1)&&(a28==11)))||(!(a25==1)&&(a28==11)))))&&(a17==8))&&!(a19==1)))) [L396] COND TRUE (((((!(a25==1)&&((a19==1)&&(input==3)))&&(a28==9))&&(a21==1))&&(a17==8))&&!(a11==1)) [L397] a19 = 0 [L398] a28 = 7 [L399] return 25; [L616] RET, EXPR calculate_output(input) [L616] output = calculate_output(input) [L608] COND TRUE 1 [L611] int input; [L612] input = __VERIFIER_nondet_int() [L613] COND FALSE !((input != 1) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L616] CALL, EXPR calculate_output(input) [L32] COND FALSE !((((!(a11==1)&&((a19==1)&&((input==4)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))))&&(a21==1))&&(a17==8))) [L37] COND FALSE !(((a17==8)&&((((!(a11==1)&&((a21==1)&&(input==6)))&&(a28==7))&&(a19==1))&&!(a25==1)))) [L40] COND FALSE !(((a21==1)&&((a19==1)&&((((((a25==1)||!(a25==1))&&(input==3))&&(a17==9))&&(a11==1))&&(a28==9))))) [L44] COND FALSE !(((a28==9)&&(!(a19==1)&&((a21==1)&&((((input==4)&&!(a25==1))&&!(a11==1))&&(a17==8)))))) [L49] COND FALSE !(((((a17==8)&&((((input==1)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a19==1)))&&(a21==1))&&(a28==10))) [L52] COND FALSE !(((a19==1)&&(!(a25==1)&&((a21==1)&&((((input==1)&&(a17==8))&&!(a11==1))&&(a28==7)))))) [L56] COND TRUE ((((!(a19==1)&&((input==1)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))))&&(a21==1))&&(a17==8))&&!(a11==1)) [L57] a28 = 7 [L58] a11 = 1 [L59] a25 = 0 [L60] return -1; [L616] RET, EXPR calculate_output(input) [L616] output = calculate_output(input) [L608] COND TRUE 1 [L611] int input; [L612] input = __VERIFIER_nondet_int() [L613] COND FALSE !((input != 1) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L616] CALL calculate_output(input) [L32] COND FALSE !((((!(a11==1)&&((a19==1)&&((input==4)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))))&&(a21==1))&&(a17==8))) [L37] COND FALSE !(((a17==8)&&((((!(a11==1)&&((a21==1)&&(input==6)))&&(a28==7))&&(a19==1))&&!(a25==1)))) [L40] COND FALSE !(((a21==1)&&((a19==1)&&((((((a25==1)||!(a25==1))&&(input==3))&&(a17==9))&&(a11==1))&&(a28==9))))) [L44] COND FALSE !(((a28==9)&&(!(a19==1)&&((a21==1)&&((((input==4)&&!(a25==1))&&!(a11==1))&&(a17==8)))))) [L49] COND FALSE !(((((a17==8)&&((((input==1)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a19==1)))&&(a21==1))&&(a28==10))) [L52] COND FALSE !(((a19==1)&&(!(a25==1)&&((a21==1)&&((((input==1)&&(a17==8))&&!(a11==1))&&(a28==7)))))) [L56] COND FALSE !(((((!(a19==1)&&((input==1)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))))&&(a21==1))&&(a17==8))&&!(a11==1))) [L61] COND FALSE !(((a19==1)&&(((((input==1)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1)))))&&(a11==1))&&(a21==1))&&(a17==9)))) [L67] COND FALSE !(((a19==1)&&(((a17==8)&&(((input==6)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))&&!(a11==1)))&&(a21==1)))) [L71] COND FALSE !((!(a11==1)&&((((a21==1)&&((input==1)&&(((a28==8)&&!(a25==1))||((a25==1)&&(a28==9)))))&&!(a19==1))&&(a17==8)))) [L76] COND FALSE !((!(a19==1)&&(((((a17==8)&&((a25==1)&&(input==3)))&&(a28==10))&&!(a11==1))&&(a21==1)))) [L84] COND FALSE !((((!(a19==1)&&((a21==1)&&((((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1))))&&(input==4))))&&!(a11==1))&&(a17==8))) [L93] COND FALSE !(((a17==8)&&((a21==1)&&((a25==1)&&((a19==1)&&(!(a11==1)&&((a28==11)&&(input==3)))))))) [L97] COND FALSE !(((a28==9)&&(((!(a19==1)&&(((input==3)&&!(a11==1))&&(a17==8)))&&!(a25==1))&&(a21==1)))) [L101] COND FALSE !(((!(a11==1)&&(((a28==11)&&((a25==1)&&((input==1)&&(a19==1))))&&(a17==8)))&&(a21==1))) [L108] COND FALSE !((((a11==1)&&((((((a25==1)&&(a28==8))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7))))&&(input==6))&&(a19==1))&&(a17==9)))&&(a21==1))) [L115] COND FALSE !(((a17==8)&&((a21==1)&&(!(a11==1)&&(!(a19==1)&&(((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==3))))))) [L121] COND FALSE !((((((a21==1)&&((a28==10)&&((input==1)&&(a25==1))))&&!(a11==1))&&(a17==8))&&!(a19==1))) [L125] COND FALSE !((!(a11==1)&&(!(a19==1)&&(((a17==8)&&((input==6)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a28==8)&&(a25==1)))))&&(a21==1))))) [L132] COND FALSE !(((((a17==8)&&(!(a19==1)&&(((input==6)&&(a21==1))&&!(a25==1))))&&!(a11==1))&&(a28==9))) [L136] COND FALSE !((!(a11==1)&&((!(a25==1)&&(((a21==1)&&((input==1)&&(a19==1)))&&(a17==8)))&&(a28==11)))) [L141] COND FALSE !((((a11==1)&&(((a19==1)&&((a21==1)&&(((a25==1)||!(a25==1))&&(input==4))))&&(a17==9)))&&(a28==9))) [L145] COND FALSE !(((!(a11==1)&&((a28==9)&&(((!(a19==1)&&(input==5))&&!(a25==1))&&(a21==1))))&&(a17==8))) [L150] COND FALSE !(((!(a11==1)&&(((a17==8)&&(((((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))||((a28==8)&&(a25==1)))&&(input==3)))&&!(a19==1)))&&(a21==1))) [L156] COND FALSE !(((a21==1)&&(!(a19==1)&&((((input==5)&&(((a28==8)&&(a25==1))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7)))))&&!(a11==1))&&(a17==8))))) [L161] COND FALSE !((((a17==9)&&(((a28==8)&&(((input==1)&&(a19==1))&&!(a25==1)))&&(a11==1)))&&(a21==1))) [L167] COND FALSE !((((a21==1)&&((a19==1)&&((a28==7)&&((a17==8)&&(!(a25==1)&&(input==3))))))&&!(a11==1))) [L171] COND FALSE !(((a28==11)&&(((a17==8)&&((((input==6)&&(a21==1))&&(a19==1))&&!(a25==1)))&&!(a11==1)))) [L177] COND FALSE !(((!(a11==1)&&(((a17==8)&&((a21==1)&&((input==3)&&(a28==8))))&&(a19==1)))&&(a25==1))) [L181] COND FALSE !((((a21==1)&&(((a19==1)&&(((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))&&(input==4)))&&(a11==1)))&&(a17==9))) [L187] COND FALSE !((((!(a11==1)&&((a17==8)&&(((input==4)&&(a19==1))&&(a28==8))))&&(a21==1))&&(a25==1))) [L189] COND FALSE !(((a19==1)&&((((((input==4)&&(a21==1))&&(a28==9))&&!(a25==1))&&!(a11==1))&&(a17==8)))) [L191] COND FALSE !(((a17==8)&&((((((input==1)&&(a21==1))&&!(a11==1))&&(a19==1))&&!(a25==1))&&(a28==9)))) [L193] COND FALSE !((((((((input==4)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a21==1))&&(a17==8))&&(a28==10))&&(a19==1))) [L196] COND FALSE !(((!(a25==1)&&((a11==1)&&((a28==8)&&(((a17==9)&&(input==4))&&(a19==1)))))&&(a21==1))) [L200] COND FALSE !((!(a19==1)&&((a17==8)&&((a28==10)&&(((a25==1)&&(!(a11==1)&&(input==5)))&&(a21==1)))))) [L204] COND FALSE !((((((a21==1)&&((input==1)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))))&&(a17==8))&&!(a11==1))&&(a19==1))) [L214] COND FALSE !(((a21==1)&&((((a19==1)&&((a25==1)&&((a28==11)&&(input==6))))&&!(a11==1))&&(a17==8)))) [L217] COND FALSE !((!(a11==1)&&((a19==1)&&((a28==10)&&(((((a25==1)||!(a25==1))&&(input==5))&&(a17==8))&&(a21==1)))))) [L220] COND FALSE !((((((a17==9)&&((((a25==1)||!(a25==1))&&(input==6))&&(a11==1)))&&(a19==1))&&(a21==1))&&(a28==9))) [L225] COND FALSE !((((a17==8)&&(((((input==6)&&(a25==1))&&!(a19==1))&&!(a11==1))&&(a28==10)))&&(a21==1))) [L227] COND FALSE !(((!(a19==1)&&((a17==8)&&(!(a11==1)&&((input==1)&&((((a28==10)&&!(a25==1))||((a25==1)&&(a28==11)))||(!(a25==1)&&(a28==11)))))))&&(a21==1))) [L234] COND FALSE !((((((((input==1)&&(a21==1))&&(a28==9))&&!(a19==1))&&!(a25==1))&&(a17==8))&&!(a11==1))) [L236] COND FALSE !(((a17==8)&&(((!(a11==1)&&((!(a25==1)&&(input==4))&&(a19==1)))&&(a28==7))&&(a21==1)))) [L239] COND FALSE !((!(a11==1)&&(((a17==8)&&((((!(a25==1)&&(a28==11))||((!(a25==1)&&(a28==10))||((a28==11)&&(a25==1))))&&(input==3))&&(a21==1)))&&!(a19==1)))) [L250] COND FALSE !(((((!(a11==1)&&(((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==5)))&&(a21==1))&&!(a19==1))&&(a17==8))) [L255] COND FALSE !((((a17==9)&&(((((input==1)&&((a25==1)||!(a25==1)))&&(a11==1))&&(a21==1))&&(a19==1)))&&(a28==9))) [L261] COND FALSE !((!(a11==1)&&((a19==1)&&(((((a28==9)&&(input==6))&&(a21==1))&&(a17==8))&&!(a25==1))))) [L263] COND FALSE !(((a17==9)&&((a21==1)&&((a11==1)&&(((input==3)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))))&&(a19==1)))))) [L278] COND FALSE !(((a28==7)&&((a17==8)&&(!(a25==1)&&((a21==1)&&((a19==1)&&((input==5)&&!(a11==1)))))))) [L282] COND FALSE !(((a28==8)&&((a21==1)&&((!(a11==1)&&(((input==1)&&(a17==8))&&(a19==1)))&&(a25==1))))) [L285] COND FALSE !((((((a17==8)&&(((input==6)&&((a25==1)||!(a25==1)))&&(a21==1)))&&(a28==10))&&!(a11==1))&&(a19==1))) [L288] COND FALSE !(((!(a11==1)&&((!(a19==1)&&(((!(a25==1)&&(a28==11))||(((a28==10)&&!(a25==1))||((a25==1)&&(a28==11))))&&(input==5)))&&(a17==8)))&&(a21==1))) [L293] COND FALSE !(((a17==8)&&(((a21==1)&&(!(a11==1)&&((a25==1)&&((a28==8)&&(input==6)))))&&(a19==1)))) [L295] COND FALSE !((((a19==1)&&((a17==8)&&(((!(a25==1)&&(input==5))&&(a21==1))&&!(a11==1))))&&(a28==11))) [L299] COND FALSE !(((a11==1)&&(((a17==9)&&((a28==9)&&((a19==1)&&(((a25==1)||!(a25==1))&&(input==5)))))&&(a21==1)))) [L311] COND FALSE !((((((((input==3)&&(a19==1))&&(a21==1))&&(a17==8))&&!(a25==1))&&(a28==11))&&!(a11==1))) [L316] COND FALSE !(((a19==1)&&((a21==1)&&((((input==5)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))))&&(a11==1))&&(a17==9))))) [L330] COND FALSE !((((a19==1)&&(((!(a11==1)&&(((a25==1)||!(a25==1))&&(input==3)))&&(a28==10))&&(a21==1)))&&(a17==8))) [L333] COND FALSE !(((!(a11==1)&&(((((input==4)&&(a17==8))&&!(a25==1))&&(a21==1))&&(a28==11)))&&(a19==1))) [L339] COND FALSE !((((!(a19==1)&&(((input==4)&&(((!(a25==1)&&(a28==10))||((a28==11)&&(a25==1)))||(!(a25==1)&&(a28==11))))&&(a21==1)))&&(a17==8))&&!(a11==1))) [L351] COND FALSE !((!(a11==1)&&(((a17==8)&&((((a25==1)&&(input==4))&&(a19==1))&&(a28==11)))&&(a21==1)))) [L356] COND FALSE !((((((a21==1)&&((((a28==8)&&!(a25==1))||((a28==9)&&(a25==1)))&&(input==6)))&&!(a11==1))&&!(a19==1))&&(a17==8))) [L363] COND FALSE !(((a19==1)&&((((a21==1)&&((!(a25==1)&&(input==3))&&(a17==9)))&&(a28==8))&&(a11==1)))) [L370] COND FALSE !(((a17==8)&&(((a21==1)&&(((input==5)&&((!(a25==1)&&(a28==8))||((a28==9)&&(a25==1))))&&(a19==1)))&&!(a11==1)))) [L377] COND FALSE !(((a19==1)&&(((((a17==8)&&((input==5)&&!(a11==1)))&&(a21==1))&&(a25==1))&&(a28==8)))) [L380] COND FALSE !((((!(a11==1)&&((((a21==1)&&(input==4))&&(a28==10))&&(a17==8)))&&!(a19==1))&&(a25==1))) [L382] COND FALSE !(((a28==8)&&(((a19==1)&&((a11==1)&&(!(a25==1)&&((a17==9)&&(input==6)))))&&(a21==1)))) [L391] COND FALSE !((!(a11==1)&&((((a21==1)&&((input==6)&&((((a28==10)&&!(a25==1))||((a25==1)&&(a28==11)))||(!(a25==1)&&(a28==11)))))&&(a17==8))&&!(a19==1)))) [L396] COND FALSE !((((((!(a25==1)&&((a19==1)&&(input==3)))&&(a28==9))&&(a21==1))&&(a17==8))&&!(a11==1))) [L400] COND FALSE !((((a17==8)&&((((input==4)&&(((a28==8)&&!(a25==1))||((a25==1)&&(a28==9))))&&(a21==1))&&!(a19==1)))&&!(a11==1))) [L404] COND FALSE !((((!(a11==1)&&((((a19==1)&&(input==5))&&(a17==8))&&(a21==1)))&&(a28==9))&&!(a25==1))) [L406] COND FALSE !((((a11==1)&&((a19==1)&&((a21==1)&&(((a17==9)&&(input==5))&&!(a25==1)))))&&(a28==8))) [L409] COND FALSE !((!(a11==1)&&((a21==1)&&(((a19==1)&&((a17==8)&&((a25==1)&&(input==5))))&&(a28==11))))) [L411] COND FALSE !(((a19==1)&&((a17==8)&&(((((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==3))&&!(a11==1))&&(a21==1))))) [L416] COND TRUE (((((!(a25==1)&&(a11==1))&&(a28==7))&&!(a19==1))&&(a21==1))&&(a17==8)) [L417] CALL reach_error() [L4] __assert_fail("0", "Problem02_label50.c", 4, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 240 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 43.4s, OverallIterations: 11, TraceHistogramMax: 5, AutomataDifference: 22.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 402 SDtfs, 5191 SDslu, 458 SDs, 0 SdLazy, 10140 SolverSat, 1407 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 169 GetRequests, 87 SyntacticMatches, 2 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2490occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 10 MinimizatonAttempts, 351 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 19.1s InterpolantComputationTime, 1506 NumberOfCodeBlocks, 1506 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1266 ConstructedInterpolants, 0 QuantifiedInterpolants, 598241 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 2 PerfectInterpolantSequences, 467/534 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...