/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem11_label15.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 06:44:05,950 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 06:44:05,954 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 06:44:05,991 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 06:44:05,992 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 06:44:05,994 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 06:44:05,996 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 06:44:05,999 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 06:44:06,001 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 06:44:06,003 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 06:44:06,004 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 06:44:06,006 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 06:44:06,007 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 06:44:06,008 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 06:44:06,010 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 06:44:06,011 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 06:44:06,012 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 06:44:06,013 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 06:44:06,021 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 06:44:06,023 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 06:44:06,030 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 06:44:06,032 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 06:44:06,035 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 06:44:06,036 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 06:44:06,061 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 06:44:06,062 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 06:44:06,062 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 06:44:06,066 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 06:44:06,067 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 06:44:06,069 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 06:44:06,069 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 06:44:06,070 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 06:44:06,072 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 06:44:06,073 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 06:44:06,075 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 06:44:06,075 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 06:44:06,076 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 06:44:06,076 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 06:44:06,077 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 06:44:06,078 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 06:44:06,079 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 06:44:06,080 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 [2020-10-29 06:44:06,141 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 06:44:06,141 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 06:44:06,145 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 06:44:06,146 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 06:44:06,146 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 06:44:06,146 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 06:44:06,147 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 06:44:06,147 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 06:44:06,147 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 06:44:06,148 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 06:44:06,149 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 06:44:06,149 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 06:44:06,149 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 06:44:06,149 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 06:44:06,150 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 06:44:06,150 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 06:44:06,150 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 06:44:06,151 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 06:44:06,151 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 06:44:06,151 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 06:44:06,152 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 06:44:06,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 06:44:06,152 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 06:44:06,152 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 06:44:06,153 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 06:44:06,153 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 06:44:06,153 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 06:44:06,153 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 06:44:06,154 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 06:44:06,154 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 06:44:06,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 06:44:06,660 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 06:44:06,664 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 06:44:06,666 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 06:44:06,667 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 06:44:06,668 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label15.c [2020-10-29 06:44:06,754 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ade538501/6e0da71bab674f539dfa4e93d2d3086b/FLAGa06c1da5f [2020-10-29 06:44:07,660 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 06:44:07,663 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem11_label15.c [2020-10-29 06:44:07,687 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ade538501/6e0da71bab674f539dfa4e93d2d3086b/FLAGa06c1da5f [2020-10-29 06:44:07,784 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ade538501/6e0da71bab674f539dfa4e93d2d3086b [2020-10-29 06:44:07,788 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 06:44:07,795 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 06:44:07,798 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 06:44:07,798 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 06:44:07,802 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 06:44:07,804 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 06:44:07" (1/1) ... [2020-10-29 06:44:07,809 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d846b01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:44:07, skipping insertion in model container [2020-10-29 06:44:07,810 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 06:44:07" (1/1) ... [2020-10-29 06:44:07,819 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 06:44:07,902 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 06:44:08,532 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 06:44:08,545 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 06:44:08,784 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 06:44:08,808 INFO L208 MainTranslator]: Completed translation [2020-10-29 06:44:08,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:44:08 WrapperNode [2020-10-29 06:44:08,810 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 06:44:08,811 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 06:44:08,811 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 06:44:08,811 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 06:44:08,826 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:44:08" (1/1) ... [2020-10-29 06:44:08,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:44:08" (1/1) ... [2020-10-29 06:44:08,885 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:44:08" (1/1) ... [2020-10-29 06:44:08,885 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:44:08" (1/1) ... [2020-10-29 06:44:08,974 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:44:08" (1/1) ... [2020-10-29 06:44:08,991 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:44:08" (1/1) ... [2020-10-29 06:44:09,001 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:44:08" (1/1) ... [2020-10-29 06:44:09,017 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 06:44:09,018 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 06:44:09,018 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 06:44:09,019 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 06:44:09,023 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:44:08" (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 [2020-10-29 06:44:09,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 06:44:09,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 06:44:09,107 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 06:44:09,107 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-29 06:44:09,107 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 06:44:09,107 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-29 06:44:09,108 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 06:44:09,108 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 06:44:09,108 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 06:44:09,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 06:44:09,108 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 06:44:09,108 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 06:44:09,109 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 06:44:09,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 06:44:09,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 06:44:09,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 06:44:09,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 06:44:09,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 06:44:09,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 06:44:11,160 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 06:44:11,160 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 06:44:11,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 06:44:11 BoogieIcfgContainer [2020-10-29 06:44:11,163 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 06:44:11,165 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 06:44:11,165 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 06:44:11,169 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 06:44:11,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 06:44:07" (1/3) ... [2020-10-29 06:44:11,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78d374e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 06:44:11, skipping insertion in model container [2020-10-29 06:44:11,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:44:08" (2/3) ... [2020-10-29 06:44:11,171 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78d374e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 06:44:11, skipping insertion in model container [2020-10-29 06:44:11,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 06:44:11" (3/3) ... [2020-10-29 06:44:11,172 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label15.c [2020-10-29 06:44:11,185 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 06:44:11,191 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 06:44:11,206 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 06:44:11,248 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 06:44:11,248 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 06:44:11,249 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 06:44:11,249 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 06:44:11,249 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 06:44:11,249 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 06:44:11,249 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 06:44:11,249 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 06:44:11,282 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states. [2020-10-29 06:44:11,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-29 06:44:11,287 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:44:11,288 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] [2020-10-29 06:44:11,289 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:44:11,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:44:11,295 INFO L82 PathProgramCache]: Analyzing trace with hash 945488982, now seen corresponding path program 1 times [2020-10-29 06:44:11,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:44:11,306 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [533830170] [2020-10-29 06:44:11,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:44:11,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:44:11,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:12,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:44:12,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-29 06:44:12,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:44:12,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 665 [2020-10-29 06:44:12,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:44:12,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:44:12,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 06:44:12,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 06:44:12,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-29 06:44:12,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 06:44:12,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:44:12,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:44:12,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:12,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:44:12,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:44:12,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:44:12,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 06:44:12,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:44:12,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:44:12,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:44:12,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:44:12,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 06:44:12,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:44:12,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 06:44:12,391 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [533830170] [2020-10-29 06:44:12,394 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 06:44:12,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-29 06:44:12,395 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312718688] [2020-10-29 06:44:12,400 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 06:44:12,401 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:44:12,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 06:44:12,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 06:44:12,425 INFO L87 Difference]: Start difference. First operand 296 states. Second operand 4 states. [2020-10-29 06:44:15,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:44:15,763 INFO L93 Difference]: Finished difference Result 793 states and 1388 transitions. [2020-10-29 06:44:15,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 06:44:15,765 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2020-10-29 06:44:15,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:44:15,783 INFO L225 Difference]: With dead ends: 793 [2020-10-29 06:44:15,783 INFO L226 Difference]: Without dead ends: 432 [2020-10-29 06:44:15,794 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 06:44:15,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2020-10-29 06:44:15,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 426. [2020-10-29 06:44:15,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 426 states. [2020-10-29 06:44:15,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 613 transitions. [2020-10-29 06:44:15,885 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 613 transitions. Word has length 21 [2020-10-29 06:44:15,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:44:15,885 INFO L481 AbstractCegarLoop]: Abstraction has 426 states and 613 transitions. [2020-10-29 06:44:15,885 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 06:44:15,886 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 613 transitions. [2020-10-29 06:44:15,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-29 06:44:15,894 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:44:15,894 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:44:15,894 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 06:44:15,895 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:44:15,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:44:15,895 INFO L82 PathProgramCache]: Analyzing trace with hash 531658587, now seen corresponding path program 1 times [2020-10-29 06:44:15,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:44:15,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [274269640] [2020-10-29 06:44:15,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:44:15,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:44:16,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:16,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:17,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:44:17,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-29 06:44:17,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:44:17,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1424 [2020-10-29 06:44:17,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:44:17,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:44:17,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 06:44:17,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 06:44:17,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-29 06:44:17,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-29 06:44:17,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:44:17,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:44:17,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:17,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:44:17,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:44:17,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:44:17,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 06:44:17,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:44:17,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:44:17,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:44:17,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:44:17,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 06:44:17,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:44:17,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:44:17,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:44:17,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:17,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:44:17,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 06:44:17,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:44:17,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-10-29 06:44:17,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:44:17,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:44:17,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:44:17,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:44:17,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-29 06:44:17,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:44:17,925 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 06:44:17,925 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [274269640] [2020-10-29 06:44:17,926 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 06:44:17,926 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 06:44:17,926 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550358339] [2020-10-29 06:44:17,928 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:44:17,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:44:17,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:44:17,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:44:17,931 INFO L87 Difference]: Start difference. First operand 426 states and 613 transitions. Second operand 7 states. [2020-10-29 06:44:21,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:44:21,467 INFO L93 Difference]: Finished difference Result 1266 states and 1840 transitions. [2020-10-29 06:44:21,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 06:44:21,469 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 93 [2020-10-29 06:44:21,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:44:21,476 INFO L225 Difference]: With dead ends: 1266 [2020-10-29 06:44:21,476 INFO L226 Difference]: Without dead ends: 846 [2020-10-29 06:44:21,479 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-29 06:44:21,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2020-10-29 06:44:21,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 822. [2020-10-29 06:44:21,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 822 states. [2020-10-29 06:44:21,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 822 states to 822 states and 1104 transitions. [2020-10-29 06:44:21,538 INFO L78 Accepts]: Start accepts. Automaton has 822 states and 1104 transitions. Word has length 93 [2020-10-29 06:44:21,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:44:21,539 INFO L481 AbstractCegarLoop]: Abstraction has 822 states and 1104 transitions. [2020-10-29 06:44:21,539 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:44:21,539 INFO L276 IsEmpty]: Start isEmpty. Operand 822 states and 1104 transitions. [2020-10-29 06:44:21,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-29 06:44:21,543 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:44:21,543 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:44:21,544 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 06:44:21,544 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:44:21,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:44:21,545 INFO L82 PathProgramCache]: Analyzing trace with hash 921858667, now seen corresponding path program 1 times [2020-10-29 06:44:21,545 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:44:21,545 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1532346177] [2020-10-29 06:44:21,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:44:21,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:44:21,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:21,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:22,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:22,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:44:22,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-29 06:44:22,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 06:44:22,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1076 [2020-10-29 06:44:22,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:44:22,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:44:22,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 06:44:22,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 06:44:22,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-29 06:44:22,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:44:22,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:44:22,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:44:22,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:22,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:44:22,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:44:22,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:44:22,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 06:44:22,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:44:22,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:44:22,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:44:22,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:44:22,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 06:44:22,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:44:22,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:44:22,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:44:22,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:23,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:44:23,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 06:44:23,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:44:23,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-10-29 06:44:23,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:44:23,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:44:23,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:44:23,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:44:23,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-29 06:44:23,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:44:23,170 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 06:44:23,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1532346177] [2020-10-29 06:44:23,171 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 06:44:23,171 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 06:44:23,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171803833] [2020-10-29 06:44:23,171 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:44:23,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:44:23,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:44:23,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:44:23,175 INFO L87 Difference]: Start difference. First operand 822 states and 1104 transitions. Second operand 7 states. [2020-10-29 06:44:27,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:44:27,192 INFO L93 Difference]: Finished difference Result 2479 states and 3365 transitions. [2020-10-29 06:44:27,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 06:44:27,193 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 101 [2020-10-29 06:44:27,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:44:27,203 INFO L225 Difference]: With dead ends: 2479 [2020-10-29 06:44:27,203 INFO L226 Difference]: Without dead ends: 1663 [2020-10-29 06:44:27,206 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 06:44:27,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1663 states. [2020-10-29 06:44:27,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1663 to 1622. [2020-10-29 06:44:27,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1622 states. [2020-10-29 06:44:27,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1622 states to 1622 states and 2036 transitions. [2020-10-29 06:44:27,276 INFO L78 Accepts]: Start accepts. Automaton has 1622 states and 2036 transitions. Word has length 101 [2020-10-29 06:44:27,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:44:27,277 INFO L481 AbstractCegarLoop]: Abstraction has 1622 states and 2036 transitions. [2020-10-29 06:44:27,277 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:44:27,277 INFO L276 IsEmpty]: Start isEmpty. Operand 1622 states and 2036 transitions. [2020-10-29 06:44:27,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-29 06:44:27,283 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:44:27,284 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:44:27,284 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 06:44:27,284 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:44:27,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:44:27,285 INFO L82 PathProgramCache]: Analyzing trace with hash 147189986, now seen corresponding path program 1 times [2020-10-29 06:44:27,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:44:27,285 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1571090302] [2020-10-29 06:44:27,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:44:27,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:44:27,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:27,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:44:27,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-29 06:44:27,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:44:27,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 368 [2020-10-29 06:44:27,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:44:27,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:44:27,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:44:27,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 06:44:27,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-29 06:44:27,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:44:27,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:44:27,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:44:27,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:27,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:44:27,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:44:27,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:44:27,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 06:44:27,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:44:27,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:44:27,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:44:27,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:44:27,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:44:27,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:44:27,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:44:27,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:44:27,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:28,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:44:28,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-29 06:44:28,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:44:28,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-29 06:44:28,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:44:28,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:44:28,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:44:28,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:44:28,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-29 06:44:28,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:44:28,101 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 06:44:28,102 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1571090302] [2020-10-29 06:44:28,102 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:44:28,102 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 06:44:28,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116556894] [2020-10-29 06:44:28,103 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 06:44:28,104 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:44:28,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 06:44:28,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 06:44:28,105 INFO L87 Difference]: Start difference. First operand 1622 states and 2036 transitions. Second operand 5 states. [2020-10-29 06:44:30,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:44:30,902 INFO L93 Difference]: Finished difference Result 3479 states and 4602 transitions. [2020-10-29 06:44:30,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 06:44:30,903 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 152 [2020-10-29 06:44:30,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:44:30,922 INFO L225 Difference]: With dead ends: 3479 [2020-10-29 06:44:30,922 INFO L226 Difference]: Without dead ends: 2241 [2020-10-29 06:44:30,927 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 06:44:30,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2241 states. [2020-10-29 06:44:31,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2241 to 2220. [2020-10-29 06:44:31,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2220 states. [2020-10-29 06:44:31,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2220 states to 2220 states and 2864 transitions. [2020-10-29 06:44:31,041 INFO L78 Accepts]: Start accepts. Automaton has 2220 states and 2864 transitions. Word has length 152 [2020-10-29 06:44:31,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:44:31,042 INFO L481 AbstractCegarLoop]: Abstraction has 2220 states and 2864 transitions. [2020-10-29 06:44:31,042 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 06:44:31,043 INFO L276 IsEmpty]: Start isEmpty. Operand 2220 states and 2864 transitions. [2020-10-29 06:44:31,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2020-10-29 06:44:31,049 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:44:31,049 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:44:31,049 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 06:44:31,050 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:44:31,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:44:31,050 INFO L82 PathProgramCache]: Analyzing trace with hash 344016774, now seen corresponding path program 1 times [2020-10-29 06:44:31,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:44:31,051 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1753239647] [2020-10-29 06:44:31,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:44:31,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:44:31,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:31,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:32,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:44:32,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 223 [2020-10-29 06:44:32,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:44:32,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1521 [2020-10-29 06:44:32,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:44:32,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:44:32,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:44:32,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-29 06:44:32,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-29 06:44:32,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:44:32,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:44:32,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:44:32,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:32,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:44:32,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:44:32,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:44:32,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 06:44:32,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:44:32,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:44:32,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:44:32,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:44:32,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:44:32,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:44:32,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:44:32,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:44:32,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:33,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:44:33,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-29 06:44:33,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:44:33,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-10-29 06:44:33,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:44:33,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:44:33,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:44:33,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:44:33,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-29 06:44:33,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:44:33,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-29 06:44:33,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:44:33,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:33,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:44:33,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 06:44:33,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:44:33,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 209 [2020-10-29 06:44:33,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:44:33,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:44:33,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:44:33,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:44:33,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-29 06:44:33,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:44:33,409 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 95 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 06:44:33,410 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1753239647] [2020-10-29 06:44:33,410 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:44:33,410 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:44:33,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721772126] [2020-10-29 06:44:33,413 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:44:33,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:44:33,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:44:33,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:44:33,415 INFO L87 Difference]: Start difference. First operand 2220 states and 2864 transitions. Second operand 7 states. [2020-10-29 06:44:36,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:44:36,705 INFO L93 Difference]: Finished difference Result 4707 states and 6446 transitions. [2020-10-29 06:44:36,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 06:44:36,706 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 209 [2020-10-29 06:44:36,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:44:36,728 INFO L225 Difference]: With dead ends: 4707 [2020-10-29 06:44:36,728 INFO L226 Difference]: Without dead ends: 2871 [2020-10-29 06:44:36,735 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 06:44:36,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2871 states. [2020-10-29 06:44:36,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2871 to 2813. [2020-10-29 06:44:36,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2813 states. [2020-10-29 06:44:36,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2813 states to 2813 states and 3646 transitions. [2020-10-29 06:44:36,836 INFO L78 Accepts]: Start accepts. Automaton has 2813 states and 3646 transitions. Word has length 209 [2020-10-29 06:44:36,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:44:36,837 INFO L481 AbstractCegarLoop]: Abstraction has 2813 states and 3646 transitions. [2020-10-29 06:44:36,837 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:44:36,837 INFO L276 IsEmpty]: Start isEmpty. Operand 2813 states and 3646 transitions. [2020-10-29 06:44:36,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-10-29 06:44:36,841 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:44:36,841 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:44:36,841 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 06:44:36,842 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:44:36,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:44:36,842 INFO L82 PathProgramCache]: Analyzing trace with hash -1633012018, now seen corresponding path program 1 times [2020-10-29 06:44:36,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:44:36,843 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [411335094] [2020-10-29 06:44:36,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:44:36,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:44:36,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:37,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:38,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:39,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:44:39,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-29 06:44:39,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 06:44:39,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2877 [2020-10-29 06:44:39,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:44:39,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:44:39,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 06:44:39,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 06:44:39,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 209 [2020-10-29 06:44:39,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:44:39,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:44:39,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:44:39,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:39,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:44:39,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:44:39,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:44:39,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 06:44:39,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:44:39,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:44:39,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:44:39,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:44:39,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 06:44:39,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:44:40,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:44:40,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:44:40,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:40,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:40,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:44:40,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-29 06:44:40,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:44:40,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 337 [2020-10-29 06:44:40,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:44:40,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:44:40,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:44:40,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:44:40,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-29 06:44:40,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:44:40,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-29 06:44:40,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:44:40,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:40,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:44:40,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-29 06:44:40,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:44:40,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-10-29 06:44:40,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:44:40,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:44:40,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 06:44:40,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:44:40,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-29 06:44:40,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 06:44:40,819 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-29 06:44:40,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [411335094] [2020-10-29 06:44:40,821 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:44:40,821 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 06:44:40,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162351653] [2020-10-29 06:44:40,822 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 06:44:40,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:44:40,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 06:44:40,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-29 06:44:40,825 INFO L87 Difference]: Start difference. First operand 2813 states and 3646 transitions. Second operand 8 states. [2020-10-29 06:44:42,421 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-29 06:44:43,373 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 82 [2020-10-29 06:44:45,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:44:45,237 INFO L93 Difference]: Finished difference Result 6884 states and 9624 transitions. [2020-10-29 06:44:45,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-29 06:44:45,238 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 210 [2020-10-29 06:44:45,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:44:45,264 INFO L225 Difference]: With dead ends: 6884 [2020-10-29 06:44:45,265 INFO L226 Difference]: Without dead ends: 4441 [2020-10-29 06:44:45,275 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2020-10-29 06:44:45,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4441 states. [2020-10-29 06:44:45,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4441 to 4185. [2020-10-29 06:44:45,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4185 states. [2020-10-29 06:44:45,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4185 states to 4185 states and 5347 transitions. [2020-10-29 06:44:45,414 INFO L78 Accepts]: Start accepts. Automaton has 4185 states and 5347 transitions. Word has length 210 [2020-10-29 06:44:45,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:44:45,415 INFO L481 AbstractCegarLoop]: Abstraction has 4185 states and 5347 transitions. [2020-10-29 06:44:45,415 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 06:44:45,415 INFO L276 IsEmpty]: Start isEmpty. Operand 4185 states and 5347 transitions. [2020-10-29 06:44:45,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-10-29 06:44:45,418 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:44:45,419 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:44:45,419 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 06:44:45,419 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:44:45,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:44:45,420 INFO L82 PathProgramCache]: Analyzing trace with hash -1874282614, now seen corresponding path program 1 times [2020-10-29 06:44:45,420 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:44:45,420 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1639709393] [2020-10-29 06:44:45,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:44:45,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:44:45,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:45,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:46,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:47,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:44:47,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 225 [2020-10-29 06:44:47,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 06:44:47,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1690 [2020-10-29 06:44:47,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:44:47,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:44:47,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:44:47,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-29 06:44:47,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-29 06:44:47,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:44:47,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:44:47,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:44:47,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:47,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:44:47,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:44:47,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:44:47,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 06:44:47,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:44:47,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:44:47,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:44:47,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:44:47,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:44:47,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:44:47,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:44:47,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:44:47,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:47,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:44:47,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-29 06:44:47,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:44:47,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-29 06:44:47,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:44:47,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:44:47,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:44:47,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:44:47,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-29 06:44:47,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:44:47,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-29 06:44:47,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:44:47,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:47,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:44:47,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-29 06:44:47,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:44:47,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-29 06:44:47,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:44:47,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:44:47,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:44:47,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:44:47,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-29 06:44:47,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:44:47,913 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 97 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 06:44:47,913 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1639709393] [2020-10-29 06:44:47,913 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:44:47,914 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:44:47,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422879654] [2020-10-29 06:44:47,915 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:44:47,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:44:47,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:44:47,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:44:47,917 INFO L87 Difference]: Start difference. First operand 4185 states and 5347 transitions. Second operand 7 states. [2020-10-29 06:44:48,104 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-29 06:44:51,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:44:51,435 INFO L93 Difference]: Finished difference Result 8981 states and 11548 transitions. [2020-10-29 06:44:51,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 06:44:51,436 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 211 [2020-10-29 06:44:51,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:44:51,464 INFO L225 Difference]: With dead ends: 8981 [2020-10-29 06:44:51,465 INFO L226 Difference]: Without dead ends: 5180 [2020-10-29 06:44:51,477 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-29 06:44:51,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5180 states. [2020-10-29 06:44:51,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5180 to 4965. [2020-10-29 06:44:51,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4965 states. [2020-10-29 06:44:51,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4965 states to 4965 states and 6266 transitions. [2020-10-29 06:44:51,625 INFO L78 Accepts]: Start accepts. Automaton has 4965 states and 6266 transitions. Word has length 211 [2020-10-29 06:44:51,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:44:51,626 INFO L481 AbstractCegarLoop]: Abstraction has 4965 states and 6266 transitions. [2020-10-29 06:44:51,626 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:44:51,626 INFO L276 IsEmpty]: Start isEmpty. Operand 4965 states and 6266 transitions. [2020-10-29 06:44:51,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-10-29 06:44:51,630 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:44:51,631 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:44:51,631 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 06:44:51,631 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:44:51,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:44:51,633 INFO L82 PathProgramCache]: Analyzing trace with hash -1875568738, now seen corresponding path program 1 times [2020-10-29 06:44:51,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:44:51,633 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [525037123] [2020-10-29 06:44:51,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:44:51,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:44:51,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:52,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:52,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:44:52,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-10-29 06:44:52,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:44:52,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 652 [2020-10-29 06:44:52,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:44:52,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:44:52,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:44:52,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 212 [2020-10-29 06:44:52,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-29 06:44:52,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:44:52,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:44:52,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:44:52,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:52,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:44:52,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:44:52,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:44:52,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 06:44:52,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:44:52,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:44:52,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:44:52,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:44:52,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:44:52,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:44:52,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:44:52,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:44:52,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:52,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:44:52,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-29 06:44:52,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:44:52,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-29 06:44:52,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:44:52,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:44:52,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:44:52,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:44:52,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:44:52,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:44:52,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-29 06:44:52,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:44:52,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:52,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:44:52,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-29 06:44:52,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:44:52,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-29 06:44:52,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:44:52,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:44:52,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:44:52,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:44:52,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-29 06:44:52,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:44:52,958 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 27 proven. 2 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-10-29 06:44:52,959 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [525037123] [2020-10-29 06:44:52,960 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:44:52,960 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 06:44:52,960 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144801414] [2020-10-29 06:44:52,961 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 06:44:52,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:44:52,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 06:44:52,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 06:44:52,962 INFO L87 Difference]: Start difference. First operand 4965 states and 6266 transitions. Second operand 5 states. [2020-10-29 06:44:54,100 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-29 06:44:55,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:44:55,288 INFO L93 Difference]: Finished difference Result 8601 states and 10975 transitions. [2020-10-29 06:44:55,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 06:44:55,294 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 221 [2020-10-29 06:44:55,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:44:55,321 INFO L225 Difference]: With dead ends: 8601 [2020-10-29 06:44:55,322 INFO L226 Difference]: Without dead ends: 4977 [2020-10-29 06:44:55,332 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 06:44:55,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4977 states. [2020-10-29 06:44:55,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4977 to 4963. [2020-10-29 06:44:55,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4963 states. [2020-10-29 06:44:55,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4963 states to 4963 states and 6241 transitions. [2020-10-29 06:44:55,472 INFO L78 Accepts]: Start accepts. Automaton has 4963 states and 6241 transitions. Word has length 221 [2020-10-29 06:44:55,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:44:55,473 INFO L481 AbstractCegarLoop]: Abstraction has 4963 states and 6241 transitions. [2020-10-29 06:44:55,473 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 06:44:55,473 INFO L276 IsEmpty]: Start isEmpty. Operand 4963 states and 6241 transitions. [2020-10-29 06:44:55,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-10-29 06:44:55,477 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:44:55,478 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:44:55,478 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 06:44:55,478 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:44:55,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:44:55,479 INFO L82 PathProgramCache]: Analyzing trace with hash -284258210, now seen corresponding path program 1 times [2020-10-29 06:44:55,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:44:55,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1149263272] [2020-10-29 06:44:55,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:44:55,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:44:55,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:55,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:56,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:57,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:44:57,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-10-29 06:44:57,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 06:44:57,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1960 [2020-10-29 06:44:57,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:44:57,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:44:57,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:44:57,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-29 06:44:57,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-29 06:44:57,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 43 [2020-10-29 06:44:57,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:44:57,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:44:57,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:57,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:44:57,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:44:57,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:44:57,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 06:44:57,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:44:57,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:44:57,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:44:57,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:44:57,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:44:57,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:44:57,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:44:57,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:44:57,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:57,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:44:57,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-29 06:44:57,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:44:57,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-10-29 06:44:57,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:44:57,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:44:57,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:44:57,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:44:57,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-10-29 06:44:57,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:44:57,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-29 06:44:57,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:44:58,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:58,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:44:58,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-29 06:44:58,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:44:58,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-29 06:44:58,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:44:58,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:44:58,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:44:58,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:44:58,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-29 06:44:58,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:44:58,327 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 97 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 06:44:58,332 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1149263272] [2020-10-29 06:44:58,333 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:44:58,333 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:44:58,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47425091] [2020-10-29 06:44:58,334 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:44:58,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:44:58,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:44:58,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:44:58,337 INFO L87 Difference]: Start difference. First operand 4963 states and 6241 transitions. Second operand 7 states. [2020-10-29 06:45:02,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:45:02,114 INFO L93 Difference]: Finished difference Result 10705 states and 13533 transitions. [2020-10-29 06:45:02,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 06:45:02,115 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 221 [2020-10-29 06:45:02,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:45:02,145 INFO L225 Difference]: With dead ends: 10705 [2020-10-29 06:45:02,145 INFO L226 Difference]: Without dead ends: 6126 [2020-10-29 06:45:02,158 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-29 06:45:02,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6126 states. [2020-10-29 06:45:02,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6126 to 5341. [2020-10-29 06:45:02,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5341 states. [2020-10-29 06:45:02,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5341 states to 5341 states and 6670 transitions. [2020-10-29 06:45:02,310 INFO L78 Accepts]: Start accepts. Automaton has 5341 states and 6670 transitions. Word has length 221 [2020-10-29 06:45:02,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:45:02,310 INFO L481 AbstractCegarLoop]: Abstraction has 5341 states and 6670 transitions. [2020-10-29 06:45:02,311 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:45:02,311 INFO L276 IsEmpty]: Start isEmpty. Operand 5341 states and 6670 transitions. [2020-10-29 06:45:02,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-10-29 06:45:02,315 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:45:02,315 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:45:02,315 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 06:45:02,315 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:45:02,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:45:02,317 INFO L82 PathProgramCache]: Analyzing trace with hash -2069177083, now seen corresponding path program 1 times [2020-10-29 06:45:02,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:45:02,318 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [61286290] [2020-10-29 06:45:02,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:45:02,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:45:02,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:45:02,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:45:04,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:45:04,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-10-29 06:45:04,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:45:04,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1664 [2020-10-29 06:45:04,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:45:04,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:45:04,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:45:04,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 06:45:04,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-29 06:45:04,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:45:04,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:45:04,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:45:04,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:45:04,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:45:04,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:45:04,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:45:04,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 06:45:04,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:45:04,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:45:04,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:45:04,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:45:04,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:45:04,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:45:04,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:45:04,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:45:04,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:45:04,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:45:04,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-29 06:45:04,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:45:04,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-29 06:45:04,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:45:04,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:45:04,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:45:04,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:45:04,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-29 06:45:04,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:45:04,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-29 06:45:04,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:45:04,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:45:04,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:45:04,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 06:45:04,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:45:04,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-29 06:45:04,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:45:04,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:45:04,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:45:04,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:45:04,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-29 06:45:04,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:45:04,652 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 92 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 06:45:04,653 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [61286290] [2020-10-29 06:45:04,653 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:45:04,653 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:45:04,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658138043] [2020-10-29 06:45:04,654 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:45:04,654 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:45:04,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:45:04,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:45:04,656 INFO L87 Difference]: Start difference. First operand 5341 states and 6670 transitions. Second operand 7 states. [2020-10-29 06:45:09,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:45:09,345 INFO L93 Difference]: Finished difference Result 12261 states and 15791 transitions. [2020-10-29 06:45:09,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 06:45:09,385 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 221 [2020-10-29 06:45:09,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:45:09,425 INFO L225 Difference]: With dead ends: 12261 [2020-10-29 06:45:09,425 INFO L226 Difference]: Without dead ends: 7304 [2020-10-29 06:45:09,438 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 06:45:09,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7304 states. [2020-10-29 06:45:09,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7304 to 7102. [2020-10-29 06:45:09,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7102 states. [2020-10-29 06:45:09,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7102 states to 7102 states and 8792 transitions. [2020-10-29 06:45:09,637 INFO L78 Accepts]: Start accepts. Automaton has 7102 states and 8792 transitions. Word has length 221 [2020-10-29 06:45:09,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:45:09,637 INFO L481 AbstractCegarLoop]: Abstraction has 7102 states and 8792 transitions. [2020-10-29 06:45:09,638 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:45:09,638 INFO L276 IsEmpty]: Start isEmpty. Operand 7102 states and 8792 transitions. [2020-10-29 06:45:09,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-10-29 06:45:09,642 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:45:09,643 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:45:09,643 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 06:45:09,643 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:45:09,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:45:09,644 INFO L82 PathProgramCache]: Analyzing trace with hash -341323123, now seen corresponding path program 1 times [2020-10-29 06:45:09,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:45:09,645 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [830172287] [2020-10-29 06:45:09,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:45:09,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:45:09,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:45:09,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:45:11,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:45:11,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-10-29 06:45:11,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:45:11,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1474 [2020-10-29 06:45:11,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:45:11,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:45:11,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:45:11,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 06:45:11,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-29 06:45:11,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:45:11,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:45:11,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:45:11,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:45:11,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:45:11,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:45:11,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:45:11,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 06:45:11,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:45:11,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:45:11,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:45:11,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:45:11,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:45:11,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:45:11,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:45:11,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:45:11,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:45:11,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:45:11,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-29 06:45:11,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:45:11,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-29 06:45:11,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:45:11,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:45:11,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:45:11,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:45:11,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-29 06:45:11,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:45:11,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-29 06:45:11,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:45:11,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:45:11,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:45:11,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-29 06:45:11,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:45:11,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-29 06:45:11,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:45:11,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:45:11,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:45:11,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:45:11,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-29 06:45:11,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:45:11,777 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 96 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 06:45:11,778 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [830172287] [2020-10-29 06:45:11,778 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:45:11,778 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:45:11,778 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615225186] [2020-10-29 06:45:11,779 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:45:11,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:45:11,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:45:11,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:45:11,781 INFO L87 Difference]: Start difference. First operand 7102 states and 8792 transitions. Second operand 7 states. [2020-10-29 06:45:16,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:45:16,697 INFO L93 Difference]: Finished difference Result 15560 states and 19367 transitions. [2020-10-29 06:45:16,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 06:45:16,698 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 225 [2020-10-29 06:45:16,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:45:16,730 INFO L225 Difference]: With dead ends: 15560 [2020-10-29 06:45:16,730 INFO L226 Difference]: Without dead ends: 8848 [2020-10-29 06:45:16,747 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 06:45:16,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8848 states. [2020-10-29 06:45:16,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8848 to 8262. [2020-10-29 06:45:16,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8262 states. [2020-10-29 06:45:16,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8262 states to 8262 states and 10166 transitions. [2020-10-29 06:45:16,951 INFO L78 Accepts]: Start accepts. Automaton has 8262 states and 10166 transitions. Word has length 225 [2020-10-29 06:45:16,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:45:16,952 INFO L481 AbstractCegarLoop]: Abstraction has 8262 states and 10166 transitions. [2020-10-29 06:45:16,952 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:45:16,952 INFO L276 IsEmpty]: Start isEmpty. Operand 8262 states and 10166 transitions. [2020-10-29 06:45:16,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2020-10-29 06:45:16,957 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:45:16,958 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:45:16,958 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 06:45:16,958 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:45:16,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:45:16,959 INFO L82 PathProgramCache]: Analyzing trace with hash -582155776, now seen corresponding path program 1 times [2020-10-29 06:45:16,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:45:16,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1387024428] [2020-10-29 06:45:16,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:45:17,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:45:17,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:45:17,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:45:17,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:45:18,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:45:18,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 256 [2020-10-29 06:45:18,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 06:45:18,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1596 [2020-10-29 06:45:18,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:45:18,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:45:18,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:45:18,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-10-29 06:45:18,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-29 06:45:18,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:45:18,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:45:18,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:45:18,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:45:18,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:45:18,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:45:18,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:45:18,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 06:45:18,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:45:18,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:45:18,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:45:18,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:45:18,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:45:18,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:45:18,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:45:18,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:45:18,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:45:19,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:45:19,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-29 06:45:19,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:45:19,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-10-29 06:45:19,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:45:19,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:45:19,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:45:19,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:45:19,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-29 06:45:19,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:45:19,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-29 06:45:19,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:45:19,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:45:19,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:45:19,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-29 06:45:19,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:45:19,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-29 06:45:19,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:45:19,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:45:19,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:45:19,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:45:19,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-29 06:45:19,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:45:19,385 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 97 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 06:45:19,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1387024428] [2020-10-29 06:45:19,386 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:45:19,386 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:45:19,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087289654] [2020-10-29 06:45:19,386 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:45:19,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:45:19,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:45:19,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:45:19,387 INFO L87 Difference]: Start difference. First operand 8262 states and 10166 transitions. Second operand 7 states. [2020-10-29 06:45:23,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:45:23,371 INFO L93 Difference]: Finished difference Result 17296 states and 21546 transitions. [2020-10-29 06:45:23,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 06:45:23,372 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 242 [2020-10-29 06:45:23,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:45:23,402 INFO L225 Difference]: With dead ends: 17296 [2020-10-29 06:45:23,402 INFO L226 Difference]: Without dead ends: 9232 [2020-10-29 06:45:23,421 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 06:45:23,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9232 states. [2020-10-29 06:45:23,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9232 to 8838. [2020-10-29 06:45:23,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8838 states. [2020-10-29 06:45:23,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8838 states to 8838 states and 10782 transitions. [2020-10-29 06:45:23,640 INFO L78 Accepts]: Start accepts. Automaton has 8838 states and 10782 transitions. Word has length 242 [2020-10-29 06:45:23,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:45:23,641 INFO L481 AbstractCegarLoop]: Abstraction has 8838 states and 10782 transitions. [2020-10-29 06:45:23,641 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:45:23,641 INFO L276 IsEmpty]: Start isEmpty. Operand 8838 states and 10782 transitions. [2020-10-29 06:45:23,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2020-10-29 06:45:23,646 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:45:23,647 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:45:23,647 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 06:45:23,647 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:45:23,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:45:23,648 INFO L82 PathProgramCache]: Analyzing trace with hash 694375281, now seen corresponding path program 1 times [2020-10-29 06:45:23,648 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:45:23,648 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1285088017] [2020-10-29 06:45:23,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:45:23,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-29 06:45:23,710 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-29 06:45:23,710 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-29 06:45:23,716 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 06:45:23,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 06:45:23 BoogieIcfgContainer [2020-10-29 06:45:23,762 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 06:45:23,764 INFO L168 Benchmark]: Toolchain (without parser) took 75973.73 ms. Allocated memory was 158.3 MB in the beginning and 973.1 MB in the end (delta: 814.7 MB). Free memory was 130.7 MB in the beginning and 487.2 MB in the end (delta: -356.5 MB). Peak memory consumption was 459.3 MB. Max. memory is 8.0 GB. [2020-10-29 06:45:23,764 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 158.3 MB. Free memory is still 131.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 06:45:23,765 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1012.34 ms. Allocated memory is still 158.3 MB. Free memory was 130.0 MB in the beginning and 121.9 MB in the end (delta: 8.1 MB). Peak memory consumption was 32.8 MB. Max. memory is 8.0 GB. [2020-10-29 06:45:23,765 INFO L168 Benchmark]: Boogie Preprocessor took 206.15 ms. Allocated memory is still 158.3 MB. Free memory was 121.9 MB in the beginning and 114.1 MB in the end (delta: 7.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. [2020-10-29 06:45:23,766 INFO L168 Benchmark]: RCFGBuilder took 2145.13 ms. Allocated memory was 158.3 MB in the beginning and 192.9 MB in the end (delta: 34.6 MB). Free memory was 114.1 MB in the beginning and 157.6 MB in the end (delta: -43.5 MB). Peak memory consumption was 88.6 MB. Max. memory is 8.0 GB. [2020-10-29 06:45:23,767 INFO L168 Benchmark]: TraceAbstraction took 72596.94 ms. Allocated memory was 192.9 MB in the beginning and 973.1 MB in the end (delta: 780.1 MB). Free memory was 157.1 MB in the beginning and 487.2 MB in the end (delta: -330.1 MB). Peak memory consumption was 450.0 MB. Max. memory is 8.0 GB. [2020-10-29 06:45:23,770 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 158.3 MB. Free memory is still 131.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 1012.34 ms. Allocated memory is still 158.3 MB. Free memory was 130.0 MB in the beginning and 121.9 MB in the end (delta: 8.1 MB). Peak memory consumption was 32.8 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 206.15 ms. Allocated memory is still 158.3 MB. Free memory was 121.9 MB in the beginning and 114.1 MB in the end (delta: 7.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. * RCFGBuilder took 2145.13 ms. Allocated memory was 158.3 MB in the beginning and 192.9 MB in the end (delta: 34.6 MB). Free memory was 114.1 MB in the beginning and 157.6 MB in the end (delta: -43.5 MB). Peak memory consumption was 88.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 72596.94 ms. Allocated memory was 192.9 MB in the beginning and 973.1 MB in the end (delta: 780.1 MB). Free memory was 157.1 MB in the beginning and 487.2 MB in the end (delta: -330.1 MB). Peak memory consumption was 450.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 4]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L9] int inputA = 1; [L10] int inputD = 4; [L11] int inputB = 2; [L12] int inputE = 5; [L13] int inputF = 6; [L14] int inputC = 3; [L17] int a29 = 130; [L18] int a4 = 1; [L19] int a23 = 312; [L20] int a8 = 15; [L21] int a25 = 10; [L22] int a3 = 1; [L1033] int output = -1; [L1036] COND TRUE 1 [L1039] int input; [L1040] input = __VERIFIER_nondet_int() [L1041] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L1044] CALL, EXPR calculate_output(input) [L25] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==10)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L28] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==11)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L31] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==9)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L34] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==10)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L37] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==9)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L40] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==11)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L43] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==13)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L46] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==11)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L49] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==10)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L52] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==13)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L55] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==9)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L58] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==12)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L61] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==13)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L64] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==9)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L67] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==9)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L70] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==11)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L73] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==10)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L76] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==12)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L79] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==11)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L82] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==12)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L85] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==9)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L88] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==9)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L91] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==13)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L94] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==10)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L97] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==13)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L100] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==10)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L103] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==10)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L106] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==13)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L109] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==13)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L112] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==12)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L115] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==10)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L118] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==9)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L121] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==12)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L124] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==11)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L127] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==12)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L130] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==11)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L133] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==12)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L136] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==11)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L139] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==10)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L142] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==10)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L145] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==12)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L148] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==13)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L151] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==13)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L154] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==12)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L157] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==13)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L160] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==9)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L163] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==12)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L166] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==9)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L169] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==12)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L172] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==12)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L175] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==9)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L178] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==11)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L181] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==10)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L184] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==9)) && (a3==1)) && 306 < a23 ) && (a8==15))) [L187] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==13)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L190] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==11)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L193] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==11)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L196] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==11)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L199] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==10)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L202] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==13)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L205] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==9)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L209] COND FALSE !((( ((140 < a29) && (245 >= a29)) && ((a25==12) && ( a23 <= -43 && ((a8==15) && ((input == 6) && (a3==1)))))) && !(a4==1))) [L216] COND FALSE !((!(a4==1) && (((a3==1) && ((((((a25==13) && ((140 < a29) && (245 >= a29)) ) || ((a25==9) && ((245 < a29) && (277 >= a29)) )) || ( ((245 < a29) && (277 >= a29)) && (a25==10))) && (input == 4)) && a23 <= -43 )) && (a8==15)))) [L223] COND FALSE !(((a25==11) && (!(a4==1) && (((((input == 2) && (a3==1)) && a23 <= -43 ) && (a8==15)) && ((245 < a29) && (277 >= a29)) )))) [L229] COND FALSE !(((( a29 <= 140 && ((a3==1) && (((input == 5) && (a25==13)) && (a4==1)))) && (a8==15)) && 306 < a23 )) [L235] COND FALSE !((((a8==15) && (((((((a4==1) && 277 < a29 ) && (a25==12)) && 306 < a23 ) || ( 306 < a23 && (((a4==1) && 277 < a29 ) && (a25==13)))) || ((( a29 <= 140 && !(a4==1)) && (a25==9)) && a23 <= -43 )) && (input == 6))) && (a3==1))) [L242] COND FALSE !(((((input == 4) && (( a23 <= -43 && ((a25==9) && (!(a4==1) && a29 <= 140 ))) || (((( 277 < a29 && (a4==1)) && (a25==12)) && 306 < a23 ) || ( 306 < a23 && ((a25==13) && ( 277 < a29 && (a4==1))))))) && (a8==15)) && (a3==1))) [L249] COND FALSE !((((a3==1) && (!(a4==1) && (( a29 <= 140 && ((input == 1) && ((a25==12) || ((a25==10) || (a25==11))))) && ((-43 < a23) && (138 >= a23)) ))) && (a8==15))) [L256] COND FALSE !(((( ((245 < a29) && (277 >= a29)) && (( a23 <= -43 && (!(a4==1) && (input == 1))) && (a25==11))) && (a8==15)) && (a3==1))) [L262] COND FALSE !(((((a4==1) && (((input == 1) && (( ((245 < a29) && (277 >= a29)) && (a25==10)) || (((a25==13) && ((140 < a29) && (245 >= a29)) ) || ((a25==9) && ((245 < a29) && (277 >= a29)) )))) && (a8==15))) && 306 < a23 ) && (a3==1))) [L267] COND FALSE !((( 277 < a29 && (((a8==15) && ( a23 <= -43 && ((input == 2) && (a3==1)))) && !(a4==1))) && (a25==13))) [L270] COND FALSE !(( a29 <= 140 && ((((a8==15) && ((a3==1) && ((input == 1) && ((a25==12) || (a25==13))))) && !(a4==1)) && a23 <= -43 ))) [L277] COND FALSE !((((a4==1) && ((a8==15) && (((a3==1) && (((a25==9) || (a25==10)) && (input == 5))) && ((140 < a29) && (245 >= a29)) ))) && 306 < a23 )) [L282] COND FALSE !(((a3==1) && (((((input == 5) && (( ((245 < a29) && (277 >= a29)) && (a25==10)) || (( ((140 < a29) && (245 >= a29)) && (a25==13)) || ( ((245 < a29) && (277 >= a29)) && (a25==9))))) && (a8==15)) && !(a4==1)) && a23 <= -43 ))) [L289] COND FALSE !(((a8==15) && ((((!(a4==1) && (((a25==12) || (a25==13)) && (input == 4))) && a23 <= -43 ) && a29 <= 140 ) && (a3==1)))) [L296] COND FALSE !(((a8==15) && (!(a4==1) && ( a23 <= -43 && ((a3==1) && ( 277 < a29 && (((a25==12) || ((a25==10) || (a25==11))) && (input == 6)))))))) [L301] COND FALSE !(( 306 < a23 && (((a8==15) && ((a3==1) && ((a4==1) && (((a25==11) || (a25==12)) && (input == 6))))) && ((140 < a29) && (245 >= a29)) ))) [L307] COND FALSE !(((((a8==15) && ( a29 <= 140 && ( a23 <= -43 && ((input == 2) && ((a25==10) || (a25==11)))))) && !(a4==1)) && (a3==1))) [L312] COND FALSE !(((a3==1) && ( ((245 < a29) && (277 >= a29)) && (((a4==1) && ((a8==15) && ((((a25==11) || (a25==12)) || (a25==13)) && (input == 5)))) && 306 < a23 )))) [L319] COND FALSE !(((((a8==15) && (((a4==1) && ((input == 2) && ((a25==13) || ((a25==11) || (a25==12))))) && ((245 < a29) && (277 >= a29)) )) && 306 < a23 ) && (a3==1))) [L324] COND FALSE !((( 306 < a23 && ((a8==15) && ((((input == 6) && ((a25==9) || (a25==10))) && ((140 < a29) && (245 >= a29)) ) && (a3==1)))) && (a4==1))) [L331] COND FALSE !(((((a8==15) && (((((a25==11) || (a25==12)) && (input == 4)) && 306 < a23 ) && (a3==1))) && (a4==1)) && ((140 < a29) && (245 >= a29)) )) [L336] COND FALSE !(( a23 <= -43 && ( ((140 < a29) && (245 >= a29)) && (((a8==15) && (((input == 4) && ((a25==11) || ((a25==9) || (a25==10)))) && !(a4==1))) && (a3==1))))) [L342] COND FALSE !((((((((((a25==12) && ((245 < a29) && (277 >= a29)) ) || ((a25==13) && ((245 < a29) && (277 >= a29)) )) || ( 277 < a29 && (a25==9))) && (input == 1)) && a23 <= -43 ) && (a8==15)) && !(a4==1)) && (a3==1))) [L348] COND FALSE !((!(a4==1) && ( a29 <= 140 && ((((((a25==12) || (a25==13)) && (input == 2)) && a23 <= -43 ) && (a3==1)) && (a8==15))))) [L355] COND FALSE !(((a8==15) && (( 306 < a23 && ((a3==1) && ((input == 4) && (( ((245 < a29) && (277 >= a29)) && (a25==10)) || (( ((140 < a29) && (245 >= a29)) && (a25==13)) || ((a25==9) && ((245 < a29) && (277 >= a29)) )))))) && (a4==1)))) [L360] COND FALSE !(((((input == 3) && (( a23 <= -43 && ((!(a4==1) && a29 <= 140 ) && (a25==9))) || (( 306 < a23 && (( 277 < a29 && (a4==1)) && (a25==12))) || ((((a4==1) && 277 < a29 ) && (a25==13)) && 306 < a23 )))) && (a3==1)) && (a8==15))) [L367] COND FALSE !(( 306 < a23 && ((a4==1) && (((((((a25==11) || (a25==12)) || (a25==13)) && (input == 3)) && (a8==15)) && (a3==1)) && ((245 < a29) && (277 >= a29)) )))) [L372] COND FALSE !(( ((245 < a29) && (277 >= a29)) && (((((!(a4==1) && (input == 6)) && (a3==1)) && (a25==11)) && (a8==15)) && a23 <= -43 ))) [L379] COND FALSE !((( ((-43 < a23) && (138 >= a23)) && (((a8==15) && ((input == 2) && ((( a29 <= 140 && (a25==13)) || ( ((140 < a29) && (245 >= a29)) && (a25==9))) || ((a25==10) && ((140 < a29) && (245 >= a29)) )))) && (a3==1))) && !(a4==1))) [L386] COND FALSE !(( a29 <= 140 && ((a8==15) && ((((((a25==10) || (a25==11)) && (input == 3)) && a23 <= -43 ) && (a3==1)) && !(a4==1))))) [L393] COND FALSE !((((((a8==15) && (((input == 3) && (((a25==10) || (a25==11)) || (a25==12))) && (a3==1))) && a23 <= -43 ) && !(a4==1)) && 277 < a29 )) [L400] COND FALSE !(((!(a4==1) && ((a25==9) && ((a8==15) && ((a3==1) && ( ((-43 < a23) && (138 >= a23)) && (input == 1)))))) && a29 <= 140 )) [L413] COND FALSE !(((a8==15) && ((( 306 < a23 && (((((a25==11) || (a25==12)) || (a25==13)) && (input == 6)) && ((245 < a29) && (277 >= a29)) )) && (a4==1)) && (a3==1)))) [L419] COND FALSE !((((((!(a4==1) && ((a8==15) && (input == 2))) && (a3==1)) && ((140 < a29) && (245 >= a29)) ) && (a25==12)) && a23 <= -43 )) [L424] COND FALSE !(( a23 <= -43 && (( a29 <= 140 && ((a8==15) && (!(a4==1) && (((a25==12) || (a25==13)) && (input == 3))))) && (a3==1)))) [L431] COND FALSE !(((((((input == 6) && ((((a25==13) && a29 <= 140 ) || ( ((140 < a29) && (245 >= a29)) && (a25==9))) || ( ((140 < a29) && (245 >= a29)) && (a25==10)))) && (a8==15)) && (a3==1)) && !(a4==1)) && ((-43 < a23) && (138 >= a23)) )) [L438] COND FALSE !(((!(a4==1) && (((((a3==1) && (input == 4)) && (a25==11)) && ((245 < a29) && (277 >= a29)) ) && a23 <= -43 )) && (a8==15))) [L445] COND FALSE !(((a3==1) && ( ((140 < a29) && (245 >= a29)) && ( a23 <= -43 && ((a8==15) && (!(a4==1) && ((((a25==9) || (a25==10)) || (a25==11)) && (input == 3)))))))) [L452] COND FALSE !(((((!(a4==1) && (((((a25==10) || (a25==11)) || (a25==12)) && (input == 4)) && 277 < a29 )) && a23 <= -43 ) && (a8==15)) && (a3==1))) [L458] COND FALSE !(( ((140 < a29) && (245 >= a29)) && ((a8==15) && (((a25==12) && (!(a4==1) && ( a23 <= -43 && (input == 4)))) && (a3==1))))) [L465] COND FALSE !(((a3==1) && ((((((( 277 < a29 && (a4==1)) && (a25==12)) && 306 < a23 ) || ( 306 < a23 && (((a4==1) && 277 < a29 ) && (a25==13)))) || (((a25==9) && (!(a4==1) && a29 <= 140 )) && a23 <= -43 )) && (input == 2)) && (a8==15)))) [L472] COND FALSE !(((((input == 5) && (((((a25==12) && ((a4==1) && 277 < a29 )) && 306 < a23 ) || ((( 277 < a29 && (a4==1)) && (a25==13)) && 306 < a23 )) || ((( a29 <= 140 && !(a4==1)) && (a25==9)) && a23 <= -43 ))) && (a8==15)) && (a3==1))) [L479] COND FALSE !(((a25==12) && (((a3==1) && ((((input == 1) && a23 <= -43 ) && ((140 < a29) && (245 >= a29)) ) && !(a4==1))) && (a8==15)))) [L489] COND FALSE !((((a8==15) && (( ((-43 < a23) && (138 >= a23)) && ((input == 1) && (( ((140 < a29) && (245 >= a29)) && (a25==10)) || (((a25==13) && a29 <= 140 ) || ((a25==9) && ((140 < a29) && (245 >= a29)) ))))) && (a3==1))) && !(a4==1))) [L502] COND FALSE !(((a3==1) && ((a8==15) && (((((( ((140 < a29) && (245 >= a29)) && (a25==13)) || ((a25==9) && ((245 < a29) && (277 >= a29)) )) || ( ((245 < a29) && (277 >= a29)) && (a25==10))) && (input == 3)) && !(a4==1)) && a23 <= -43 )))) [L509] COND FALSE !((( a29 <= 140 && ( ((-43 < a23) && (138 >= a23)) && ((a3==1) && ((a8==15) && (((a25==12) || ((a25==10) || (a25==11))) && (input == 2)))))) && !(a4==1))) [L516] COND FALSE !((((a4==1) && ( 306 < a23 && ((((input == 3) && ((a25==9) || (a25==10))) && ((140 < a29) && (245 >= a29)) ) && (a3==1)))) && (a8==15))) [L528] COND FALSE !(((a4==1) && ((((a3==1) && ( 306 < a23 && (((a25==12) || ((a25==10) || (a25==11))) && (input == 4)))) && a29 <= 140 ) && (a8==15)))) [L533] COND FALSE !((((( ((-43 < a23) && (138 >= a23)) && ((!(a4==1) && (input == 5)) && (a3==1))) && (a25==9)) && a29 <= 140 ) && (a8==15))) [L539] COND FALSE !(( 306 < a23 && (((a8==15) && ((((input == 1) && ((a25==11) || (a25==12))) && (a4==1)) && (a3==1))) && ((140 < a29) && (245 >= a29)) ))) [L544] COND FALSE !(((((a8==15) && ( a23 <= -43 && (((input == 1) && ((a25==10) || (a25==11))) && a29 <= 140 ))) && !(a4==1)) && (a3==1))) [L551] COND FALSE !(((( a23 <= -43 && (!(a4==1) && ((a3==1) && (((a25==11) || ((a25==9) || (a25==10))) && (input == 5))))) && (a8==15)) && ((140 < a29) && (245 >= a29)) )) [L557] COND FALSE !(((a3==1) && ( ((-43 < a23) && (138 >= a23)) && ((a8==15) && ((((((a25==10) || (a25==11)) || (a25==12)) && (input == 5)) && a29 <= 140 ) && !(a4==1)))))) [L563] COND FALSE !(( 306 < a23 && (((a3==1) && ( 277 < a29 && (((input == 4) && (((a25==9) || (a25==10)) || (a25==11))) && (a8==15)))) && (a4==1)))) [L568] COND FALSE !((!(a4==1) && ( a23 <= -43 && ((a8==15) && (((((a25==12) || ((a25==10) || (a25==11))) && (input == 1)) && (a3==1)) && 277 < a29 ))))) [L574] COND FALSE !(( 277 < a29 && (((a25==13) && ( a23 <= -43 && (!(a4==1) && ((input == 1) && (a3==1))))) && (a8==15)))) [L577] COND FALSE !(((( ((-43 < a23) && (138 >= a23)) && (((a25==9) && ((input == 4) && !(a4==1))) && a29 <= 140 )) && (a3==1)) && (a8==15))) [L583] COND FALSE !(((a8==15) && ((((a3==1) && (((((a25==10) || (a25==11)) || (a25==12)) && (input == 3)) && (a4==1))) && 306 < a23 ) && a29 <= 140 ))) [L588] COND FALSE !((( ((-43 < a23) && (138 >= a23)) && ((a3==1) && (!(a4==1) && ((input == 4) && (((a25==10) && ((140 < a29) && (245 >= a29)) ) || (((a25==13) && a29 <= 140 ) || ( ((140 < a29) && (245 >= a29)) && (a25==9)))))))) && (a8==15))) [L600] COND FALSE !(((((a8==15) && ((!(a4==1) && (((a25==11) || ((a25==9) || (a25==10))) && (input == 6))) && (a3==1))) && a23 <= -43 ) && ((140 < a29) && (245 >= a29)) )) [L605] COND TRUE ( a29 <= 140 && (((a4==1) && ((a8==15) && (((input == 6) && (((a25==10) || (a25==11)) || (a25==12))) && 306 < a23 ))) && (a3==1))) [L606] COND TRUE (a4==1) [L607] a29 = ((((a29 % 15)+ 262) - -1) + -3) [L608] a23 = ((((a23 - 600285) - 8) + 385102) + -384893) [L609] a4 = 0 [L610] a25 = 12 [L616] return 24; [L1044] RET, EXPR calculate_output(input) [L1044] output = calculate_output(input) [L1036] COND TRUE 1 [L1039] int input; [L1040] input = __VERIFIER_nondet_int() [L1041] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L1044] CALL, EXPR calculate_output(input) [L25] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==10)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L28] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==11)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L31] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==9)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L34] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==10)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L37] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==9)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L40] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==11)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L43] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==13)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L46] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==11)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L49] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==10)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L52] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==13)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L55] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==9)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L58] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==12)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L61] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==13)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L64] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==9)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L67] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==9)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L70] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==11)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L73] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==10)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L76] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==12)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L79] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==11)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L82] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==12)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L85] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==9)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L88] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==9)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L91] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==13)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L94] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==10)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L97] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==13)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L100] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==10)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L103] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==10)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L106] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==13)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L109] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==13)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L112] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==12)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L115] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==10)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L118] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==9)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L121] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==12)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L124] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==11)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L127] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==12)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L130] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==11)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L133] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==12)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L136] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==11)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L139] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==10)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L142] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==10)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L145] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==12)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L148] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==13)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L151] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==13)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L154] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==12)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L157] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==13)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L160] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==9)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L163] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==12)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L166] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==9)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L169] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==12)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L172] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==12)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L175] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==9)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L178] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==11)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L181] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==10)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L184] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==9)) && (a3==1)) && 306 < a23 ) && (a8==15))) [L187] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==13)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L190] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==11)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L193] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==11)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L196] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==11)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L199] COND FALSE !(((((( ((140 < a29) && (245 >= a29)) && (a4==1)) && (a25==10)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L202] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==13)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L205] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==9)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L209] COND FALSE !((( ((140 < a29) && (245 >= a29)) && ((a25==12) && ( a23 <= -43 && ((a8==15) && ((input == 6) && (a3==1)))))) && !(a4==1))) [L216] COND FALSE !((!(a4==1) && (((a3==1) && ((((((a25==13) && ((140 < a29) && (245 >= a29)) ) || ((a25==9) && ((245 < a29) && (277 >= a29)) )) || ( ((245 < a29) && (277 >= a29)) && (a25==10))) && (input == 4)) && a23 <= -43 )) && (a8==15)))) [L223] COND FALSE !(((a25==11) && (!(a4==1) && (((((input == 2) && (a3==1)) && a23 <= -43 ) && (a8==15)) && ((245 < a29) && (277 >= a29)) )))) [L229] COND FALSE !(((( a29 <= 140 && ((a3==1) && (((input == 5) && (a25==13)) && (a4==1)))) && (a8==15)) && 306 < a23 )) [L235] COND FALSE !((((a8==15) && (((((((a4==1) && 277 < a29 ) && (a25==12)) && 306 < a23 ) || ( 306 < a23 && (((a4==1) && 277 < a29 ) && (a25==13)))) || ((( a29 <= 140 && !(a4==1)) && (a25==9)) && a23 <= -43 )) && (input == 6))) && (a3==1))) [L242] COND FALSE !(((((input == 4) && (( a23 <= -43 && ((a25==9) && (!(a4==1) && a29 <= 140 ))) || (((( 277 < a29 && (a4==1)) && (a25==12)) && 306 < a23 ) || ( 306 < a23 && ((a25==13) && ( 277 < a29 && (a4==1))))))) && (a8==15)) && (a3==1))) [L249] COND FALSE !((((a3==1) && (!(a4==1) && (( a29 <= 140 && ((input == 1) && ((a25==12) || ((a25==10) || (a25==11))))) && ((-43 < a23) && (138 >= a23)) ))) && (a8==15))) [L256] COND FALSE !(((( ((245 < a29) && (277 >= a29)) && (( a23 <= -43 && (!(a4==1) && (input == 1))) && (a25==11))) && (a8==15)) && (a3==1))) [L262] COND FALSE !(((((a4==1) && (((input == 1) && (( ((245 < a29) && (277 >= a29)) && (a25==10)) || (((a25==13) && ((140 < a29) && (245 >= a29)) ) || ((a25==9) && ((245 < a29) && (277 >= a29)) )))) && (a8==15))) && 306 < a23 ) && (a3==1))) [L267] COND FALSE !((( 277 < a29 && (((a8==15) && ( a23 <= -43 && ((input == 2) && (a3==1)))) && !(a4==1))) && (a25==13))) [L270] COND FALSE !(( a29 <= 140 && ((((a8==15) && ((a3==1) && ((input == 1) && ((a25==12) || (a25==13))))) && !(a4==1)) && a23 <= -43 ))) [L277] COND FALSE !((((a4==1) && ((a8==15) && (((a3==1) && (((a25==9) || (a25==10)) && (input == 5))) && ((140 < a29) && (245 >= a29)) ))) && 306 < a23 )) [L282] COND FALSE !(((a3==1) && (((((input == 5) && (( ((245 < a29) && (277 >= a29)) && (a25==10)) || (( ((140 < a29) && (245 >= a29)) && (a25==13)) || ( ((245 < a29) && (277 >= a29)) && (a25==9))))) && (a8==15)) && !(a4==1)) && a23 <= -43 ))) [L289] COND FALSE !(((a8==15) && ((((!(a4==1) && (((a25==12) || (a25==13)) && (input == 4))) && a23 <= -43 ) && a29 <= 140 ) && (a3==1)))) [L296] COND FALSE !(((a8==15) && (!(a4==1) && ( a23 <= -43 && ((a3==1) && ( 277 < a29 && (((a25==12) || ((a25==10) || (a25==11))) && (input == 6)))))))) [L301] COND FALSE !(( 306 < a23 && (((a8==15) && ((a3==1) && ((a4==1) && (((a25==11) || (a25==12)) && (input == 6))))) && ((140 < a29) && (245 >= a29)) ))) [L307] COND FALSE !(((((a8==15) && ( a29 <= 140 && ( a23 <= -43 && ((input == 2) && ((a25==10) || (a25==11)))))) && !(a4==1)) && (a3==1))) [L312] COND FALSE !(((a3==1) && ( ((245 < a29) && (277 >= a29)) && (((a4==1) && ((a8==15) && ((((a25==11) || (a25==12)) || (a25==13)) && (input == 5)))) && 306 < a23 )))) [L319] COND FALSE !(((((a8==15) && (((a4==1) && ((input == 2) && ((a25==13) || ((a25==11) || (a25==12))))) && ((245 < a29) && (277 >= a29)) )) && 306 < a23 ) && (a3==1))) [L324] COND FALSE !((( 306 < a23 && ((a8==15) && ((((input == 6) && ((a25==9) || (a25==10))) && ((140 < a29) && (245 >= a29)) ) && (a3==1)))) && (a4==1))) [L331] COND FALSE !(((((a8==15) && (((((a25==11) || (a25==12)) && (input == 4)) && 306 < a23 ) && (a3==1))) && (a4==1)) && ((140 < a29) && (245 >= a29)) )) [L336] COND FALSE !(( a23 <= -43 && ( ((140 < a29) && (245 >= a29)) && (((a8==15) && (((input == 4) && ((a25==11) || ((a25==9) || (a25==10)))) && !(a4==1))) && (a3==1))))) [L342] COND TRUE (((((((((a25==12) && ((245 < a29) && (277 >= a29)) ) || ((a25==13) && ((245 < a29) && (277 >= a29)) )) || ( 277 < a29 && (a25==9))) && (input == 1)) && a23 <= -43 ) && (a8==15)) && !(a4==1)) && (a3==1)) [L343] a29 = ((((a29 % 299861)- -278) + 162880) - -51725) [L344] a4 = 1 [L345] a25 = 10 [L347] return -1; [L1044] RET, EXPR calculate_output(input) [L1044] output = calculate_output(input) [L1036] COND TRUE 1 [L1039] int input; [L1040] input = __VERIFIER_nondet_int() [L1041] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L1044] CALL calculate_output(input) [L25] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==10)) && (a3==1)) && a23 <= -43 ) && (a8==15))) [L28] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==11)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L31] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==9)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L34] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==10)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L37] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==9)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L40] COND FALSE !(((((( ((245 < a29) && (277 >= a29)) && (a4==1)) && (a25==11)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L43] COND FALSE !(((((( a29 <= 140 && (a4==1)) && (a25==13)) && (a3==1)) && ((138 < a23) && (306 >= a23)) ) && (a8==15))) [L46] COND FALSE !(((((( 277 < a29 && (a4==1)) && (a25==11)) && (a3==1)) && ((-43 < a23) && (138 >= a23)) ) && (a8==15))) [L49] COND TRUE ((((( 277 < a29 && (a4==1)) && (a25==10)) && (a3==1)) && a23 <= -43 ) && (a8==15)) [L50] CALL reach_error() [L4] __assert_fail("0", "Problem11_label15.c", 4, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 296 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 72.4s, OverallIterations: 13, TraceHistogramMax: 3, AutomataDifference: 45.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 570 SDtfs, 6806 SDslu, 1036 SDs, 0 SdLazy, 17798 SolverSat, 2445 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 31.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 185 GetRequests, 84 SyntacticMatches, 1 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8838occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 12 MinimizatonAttempts, 2602 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 23.9s InterpolantComputationTime, 2370 NumberOfCodeBlocks, 2370 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 2115 ConstructedInterpolants, 0 QuantifiedInterpolants, 1356044 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 3 PerfectInterpolantSequences, 818/840 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...