/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label44.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 10:10:53,046 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 10:10:53,049 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 10:10:53,099 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 10:10:53,100 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 10:10:53,108 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 10:10:53,110 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 10:10:53,117 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 10:10:53,119 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 10:10:53,121 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 10:10:53,122 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 10:10:53,124 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 10:10:53,124 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 10:10:53,126 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 10:10:53,127 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 10:10:53,129 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 10:10:53,130 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 10:10:53,131 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 10:10:53,133 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 10:10:53,136 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 10:10:53,138 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 10:10:53,140 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 10:10:53,142 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 10:10:53,143 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 10:10:53,163 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 10:10:53,163 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 10:10:53,164 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 10:10:53,170 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 10:10:53,171 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 10:10:53,172 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 10:10:53,173 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 10:10:53,174 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 10:10:53,178 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 10:10:53,180 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 10:10:53,182 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 10:10:53,182 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 10:10:53,183 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 10:10:53,184 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 10:10:53,184 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 10:10:53,186 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 10:10:53,187 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 10:10:53,189 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-28 10:10:53,244 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 10:10:53,244 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 10:10:53,248 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 10:10:53,249 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 10:10:53,249 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 10:10:53,249 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 10:10:53,250 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 10:10:53,250 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 10:10:53,250 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 10:10:53,250 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 10:10:53,251 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 10:10:53,252 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 10:10:53,252 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 10:10:53,252 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 10:10:53,252 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 10:10:53,253 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 10:10:53,253 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 10:10:53,253 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 10:10:53,253 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 10:10:53,254 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 10:10:53,254 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 10:10:53,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 10:10:53,254 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 10:10:53,254 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 10:10:53,255 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 10:10:53,255 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 10:10:53,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 10:10:53,255 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 10:10:53,255 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 10:10:53,256 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 10:10:53,723 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 10:10:53,767 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 10:10:53,772 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 10:10:53,774 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 10:10:53,774 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 10:10:53,776 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label44.c [2020-10-28 10:10:53,871 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5b701cd41/de8a167cdf9c4a0080aae5d3293b2828/FLAG079855ec9 [2020-10-28 10:10:54,698 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 10:10:54,700 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label44.c [2020-10-28 10:10:54,716 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5b701cd41/de8a167cdf9c4a0080aae5d3293b2828/FLAG079855ec9 [2020-10-28 10:10:54,948 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5b701cd41/de8a167cdf9c4a0080aae5d3293b2828 [2020-10-28 10:10:54,953 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 10:10:54,960 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 10:10:54,961 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 10:10:54,962 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 10:10:54,966 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 10:10:54,967 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:10:54" (1/1) ... [2020-10-28 10:10:54,971 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e7185a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:10:54, skipping insertion in model container [2020-10-28 10:10:54,971 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:10:54" (1/1) ... [2020-10-28 10:10:54,979 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 10:10:55,023 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 10:10:55,425 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 10:10:55,435 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 10:10:55,611 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 10:10:55,629 INFO L208 MainTranslator]: Completed translation [2020-10-28 10:10:55,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:10:55 WrapperNode [2020-10-28 10:10:55,630 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 10:10:55,631 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 10:10:55,632 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 10:10:55,632 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 10:10:55,645 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:10:55" (1/1) ... [2020-10-28 10:10:55,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:10:55" (1/1) ... [2020-10-28 10:10:55,666 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:10:55" (1/1) ... [2020-10-28 10:10:55,666 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:10:55" (1/1) ... [2020-10-28 10:10:55,711 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:10:55" (1/1) ... [2020-10-28 10:10:55,727 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:10:55" (1/1) ... [2020-10-28 10:10:55,735 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:10:55" (1/1) ... [2020-10-28 10:10:55,748 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 10:10:55,751 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 10:10:55,751 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 10:10:55,751 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 10:10:55,752 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:10:55" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 10:10:55,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 10:10:55,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 10:10:55,845 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 10:10:55,846 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-28 10:10:55,846 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 10:10:55,847 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-28 10:10:55,847 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 10:10:55,847 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 10:10:55,848 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 10:10:55,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 10:10:55,849 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 10:10:55,849 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-28 10:10:55,850 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 10:10:55,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 10:10:55,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 10:10:55,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 10:10:55,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 10:10:55,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 10:10:55,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 10:10:57,495 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 10:10:57,495 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 10:10:57,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:10:57 BoogieIcfgContainer [2020-10-28 10:10:57,498 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 10:10:57,500 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 10:10:57,500 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 10:10:57,504 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 10:10:57,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 10:10:54" (1/3) ... [2020-10-28 10:10:57,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e7d9089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:10:57, skipping insertion in model container [2020-10-28 10:10:57,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:10:55" (2/3) ... [2020-10-28 10:10:57,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e7d9089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:10:57, skipping insertion in model container [2020-10-28 10:10:57,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:10:57" (3/3) ... [2020-10-28 10:10:57,508 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label44.c [2020-10-28 10:10:57,521 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 10:10:57,527 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 10:10:57,542 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 10:10:57,575 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 10:10:57,575 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 10:10:57,576 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 10:10:57,576 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 10:10:57,576 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 10:10:57,576 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 10:10:57,576 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 10:10:57,576 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 10:10:57,602 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states. [2020-10-28 10:10:57,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-28 10:10:57,614 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:10:57,615 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:10:57,616 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:10:57,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:10:57,623 INFO L82 PathProgramCache]: Analyzing trace with hash 1257700845, now seen corresponding path program 1 times [2020-10-28 10:10:57,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:10:57,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [977106198] [2020-10-28 10:10:57,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:10:57,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:10:58,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:10:58,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:10:59,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:10:59,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-28 10:10:59,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 10:10:59,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2060 [2020-10-28 10:10:59,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:10:59,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:10:59,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 10:10:59,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 10:10:59,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-28 10:10:59,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 10:11:00,289 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-28 10:11:00,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:11:00,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:00,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:00,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:00,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:11:00,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:00,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 10:11:00,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:00,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:00,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:11:00,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:11:00,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 10:11:00,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:11:00,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 10:11:00,367 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [977106198] [2020-10-28 10:11:00,370 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 10:11:00,370 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 10:11:00,371 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131004297] [2020-10-28 10:11:00,377 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 10:11:00,378 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:11:00,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 10:11:00,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 10:11:00,398 INFO L87 Difference]: Start difference. First operand 240 states. Second operand 4 states. [2020-10-28 10:11:00,625 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-28 10:11:02,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:11:02,991 INFO L93 Difference]: Finished difference Result 636 states and 1085 transitions. [2020-10-28 10:11:02,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 10:11:02,993 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 95 [2020-10-28 10:11:02,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:11:03,014 INFO L225 Difference]: With dead ends: 636 [2020-10-28 10:11:03,014 INFO L226 Difference]: Without dead ends: 332 [2020-10-28 10:11:03,022 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 10:11:03,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2020-10-28 10:11:03,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 326. [2020-10-28 10:11:03,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 326 states. [2020-10-28 10:11:03,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 428 transitions. [2020-10-28 10:11:03,118 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 428 transitions. Word has length 95 [2020-10-28 10:11:03,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:11:03,119 INFO L481 AbstractCegarLoop]: Abstraction has 326 states and 428 transitions. [2020-10-28 10:11:03,119 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 10:11:03,120 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 428 transitions. [2020-10-28 10:11:03,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-28 10:11:03,134 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:11:03,135 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-28 10:11:03,135 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 10:11:03,136 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:11:03,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:11:03,137 INFO L82 PathProgramCache]: Analyzing trace with hash 232135150, now seen corresponding path program 1 times [2020-10-28 10:11:03,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:11:03,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [246647383] [2020-10-28 10:11:03,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:11:03,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:03,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:03,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:03,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:04,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:04,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-28 10:11:04,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 10:11:04,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1694 [2020-10-28 10:11:04,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:04,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:04,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:11:04,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-28 10:11:04,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-28 10:11:04,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 10:11:05,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:11:05,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:05,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:05,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:05,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:11:05,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:05,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 10:11:05,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:05,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:05,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:11:05,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:11:05,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:11:05,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-10-28 10:11:05,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:11:05,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:05,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:05,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:05,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 10:11:05,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:05,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 10:11:05,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:05,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:05,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:11:05,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:11:05,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 10:11:05,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:11:05,210 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 10:11:05,211 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [246647383] [2020-10-28 10:11:05,212 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:11:05,212 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 10:11:05,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571690659] [2020-10-28 10:11:05,215 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 10:11:05,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:11:05,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 10:11:05,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 10:11:05,223 INFO L87 Difference]: Start difference. First operand 326 states and 428 transitions. Second operand 5 states. [2020-10-28 10:11:07,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:11:07,145 INFO L93 Difference]: Finished difference Result 800 states and 1092 transitions. [2020-10-28 10:11:07,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 10:11:07,146 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 104 [2020-10-28 10:11:07,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:11:07,152 INFO L225 Difference]: With dead ends: 800 [2020-10-28 10:11:07,152 INFO L226 Difference]: Without dead ends: 480 [2020-10-28 10:11:07,155 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 10:11:07,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2020-10-28 10:11:07,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 476. [2020-10-28 10:11:07,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 476 states. [2020-10-28 10:11:07,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 608 transitions. [2020-10-28 10:11:07,228 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 608 transitions. Word has length 104 [2020-10-28 10:11:07,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:11:07,229 INFO L481 AbstractCegarLoop]: Abstraction has 476 states and 608 transitions. [2020-10-28 10:11:07,229 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 10:11:07,229 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 608 transitions. [2020-10-28 10:11:07,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-28 10:11:07,238 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:11:07,239 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:11:07,239 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 10:11:07,240 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:11:07,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:11:07,240 INFO L82 PathProgramCache]: Analyzing trace with hash -725307836, now seen corresponding path program 1 times [2020-10-28 10:11:07,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:11:07,241 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [748185479] [2020-10-28 10:11:07,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:11:07,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:07,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:07,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:08,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:10,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:10,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:11,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:12,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:12,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-28 10:11:12,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 10:11:12,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-28 10:11:12,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:12,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:12,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:11:12,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-28 10:11:12,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-28 10:11:12,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:11:12,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:11:12,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:12,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:12,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:12,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:11:12,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:12,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 10:11:12,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:12,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:12,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:11:12,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:11:12,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:11:12,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:11:12,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:11:12,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:12,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:12,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:12,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 10:11:12,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:12,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 10:11:12,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:12,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:12,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:11:12,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:11:12,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-28 10:11:12,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:11:12,629 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 10:11:12,630 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [748185479] [2020-10-28 10:11:12,630 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:11:12,631 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 10:11:12,631 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396323693] [2020-10-28 10:11:12,632 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 10:11:12,632 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:11:12,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 10:11:12,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 10:11:12,633 INFO L87 Difference]: Start difference. First operand 476 states and 608 transitions. Second operand 5 states. [2020-10-28 10:11:14,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:11:14,446 INFO L93 Difference]: Finished difference Result 1389 states and 1813 transitions. [2020-10-28 10:11:14,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 10:11:14,447 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 116 [2020-10-28 10:11:14,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:11:14,455 INFO L225 Difference]: With dead ends: 1389 [2020-10-28 10:11:14,455 INFO L226 Difference]: Without dead ends: 919 [2020-10-28 10:11:14,457 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 10:11:14,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2020-10-28 10:11:14,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 915. [2020-10-28 10:11:14,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 915 states. [2020-10-28 10:11:14,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915 states to 915 states and 1110 transitions. [2020-10-28 10:11:14,516 INFO L78 Accepts]: Start accepts. Automaton has 915 states and 1110 transitions. Word has length 116 [2020-10-28 10:11:14,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:11:14,517 INFO L481 AbstractCegarLoop]: Abstraction has 915 states and 1110 transitions. [2020-10-28 10:11:14,517 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 10:11:14,517 INFO L276 IsEmpty]: Start isEmpty. Operand 915 states and 1110 transitions. [2020-10-28 10:11:14,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-10-28 10:11:14,521 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:11:14,521 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:11:14,522 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 10:11:14,522 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:11:14,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:11:14,522 INFO L82 PathProgramCache]: Analyzing trace with hash -700953136, now seen corresponding path program 1 times [2020-10-28 10:11:14,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:11:14,523 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [622095804] [2020-10-28 10:11:14,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:11:14,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:14,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:14,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:14,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:14,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:15,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:18,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:18,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:19,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:19,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:19,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:19,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-28 10:11:19,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-28 10:11:19,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-28 10:11:19,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:19,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:19,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 10:11:19,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-28 10:11:19,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-28 10:11:19,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:11:19,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:11:19,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:19,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:19,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:19,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:11:19,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:19,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 10:11:19,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:19,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:19,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:11:19,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:11:19,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:11:19,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:11:19,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:11:19,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:19,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:19,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:19,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 10:11:19,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:19,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 10:11:19,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:19,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:19,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:11:19,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:11:19,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 10:11:19,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:11:19,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-28 10:11:19,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:19,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:19,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:19,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:19,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 10:11:19,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 10:11:19,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-28 10:11:19,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:19,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:19,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:11:19,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:11:19,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 10:11:19,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:11:19,975 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-28 10:11:19,975 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [622095804] [2020-10-28 10:11:19,976 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:11:19,976 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 10:11:19,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153979230] [2020-10-28 10:11:19,977 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 10:11:19,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:11:19,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 10:11:19,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 10:11:19,979 INFO L87 Difference]: Start difference. First operand 915 states and 1110 transitions. Second operand 5 states. [2020-10-28 10:11:21,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:11:21,656 INFO L93 Difference]: Finished difference Result 2702 states and 3345 transitions. [2020-10-28 10:11:21,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 10:11:21,658 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 124 [2020-10-28 10:11:21,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:11:21,672 INFO L225 Difference]: With dead ends: 2702 [2020-10-28 10:11:21,672 INFO L226 Difference]: Without dead ends: 1793 [2020-10-28 10:11:21,677 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 4 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 10:11:21,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1793 states. [2020-10-28 10:11:21,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1793 to 1645. [2020-10-28 10:11:21,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1645 states. [2020-10-28 10:11:21,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1645 states to 1645 states and 2035 transitions. [2020-10-28 10:11:21,774 INFO L78 Accepts]: Start accepts. Automaton has 1645 states and 2035 transitions. Word has length 124 [2020-10-28 10:11:21,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:11:21,774 INFO L481 AbstractCegarLoop]: Abstraction has 1645 states and 2035 transitions. [2020-10-28 10:11:21,774 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 10:11:21,775 INFO L276 IsEmpty]: Start isEmpty. Operand 1645 states and 2035 transitions. [2020-10-28 10:11:21,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-28 10:11:21,783 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:11:21,784 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:11:21,784 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 10:11:21,784 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:11:21,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:11:21,785 INFO L82 PathProgramCache]: Analyzing trace with hash -783905509, now seen corresponding path program 1 times [2020-10-28 10:11:21,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:11:21,785 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [747413791] [2020-10-28 10:11:21,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:11:21,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:21,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:21,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:22,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:22,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:22,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:24,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:25,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:25,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-28 10:11:25,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 10:11:25,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3503 [2020-10-28 10:11:25,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:25,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:25,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 10:11:25,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-10-28 10:11:25,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-28 10:11:25,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:11:25,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:11:25,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:25,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:25,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:25,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:11:25,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:25,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 10:11:25,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:25,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:25,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:11:25,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:11:25,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:11:25,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:11:25,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:11:25,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:25,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:25,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:25,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 10:11:25,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:25,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 10:11:25,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:25,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:25,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:11:25,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:11:25,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 10:11:25,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:11:25,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-28 10:11:25,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:25,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:25,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:25,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:25,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 10:11:25,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 10:11:25,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 10:11:25,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:25,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:25,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:11:25,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 10:11:25,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-28 10:11:25,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:11:25,608 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 22 proven. 8 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-28 10:11:25,608 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [747413791] [2020-10-28 10:11:25,608 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:11:25,609 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-28 10:11:25,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515342007] [2020-10-28 10:11:25,610 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 10:11:25,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:11:25,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 10:11:25,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-28 10:11:25,611 INFO L87 Difference]: Start difference. First operand 1645 states and 2035 transitions. Second operand 6 states. [2020-10-28 10:11:27,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:11:27,325 INFO L93 Difference]: Finished difference Result 3738 states and 4790 transitions. [2020-10-28 10:11:27,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 10:11:27,326 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 127 [2020-10-28 10:11:27,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:11:27,340 INFO L225 Difference]: With dead ends: 3738 [2020-10-28 10:11:27,340 INFO L226 Difference]: Without dead ends: 2099 [2020-10-28 10:11:27,346 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-28 10:11:27,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2099 states. [2020-10-28 10:11:27,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2099 to 2093. [2020-10-28 10:11:27,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2093 states. [2020-10-28 10:11:27,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2093 states to 2093 states and 2610 transitions. [2020-10-28 10:11:27,455 INFO L78 Accepts]: Start accepts. Automaton has 2093 states and 2610 transitions. Word has length 127 [2020-10-28 10:11:27,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:11:27,455 INFO L481 AbstractCegarLoop]: Abstraction has 2093 states and 2610 transitions. [2020-10-28 10:11:27,456 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 10:11:27,456 INFO L276 IsEmpty]: Start isEmpty. Operand 2093 states and 2610 transitions. [2020-10-28 10:11:27,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-28 10:11:27,462 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:11:27,462 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 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] [2020-10-28 10:11:27,462 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 10:11:27,463 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:11:27,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:11:27,463 INFO L82 PathProgramCache]: Analyzing trace with hash -43726308, now seen corresponding path program 1 times [2020-10-28 10:11:27,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:11:27,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1307512626] [2020-10-28 10:11:27,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:11:27,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:27,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:27,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:27,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:27,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:28,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:28,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:29,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:31,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:31,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-28 10:11:31,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-28 10:11:31,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4437 [2020-10-28 10:11:31,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:31,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:31,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:11:31,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-28 10:11:31,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-28 10:11:31,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:11:32,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:11:32,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:32,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:32,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:32,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:11:32,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:32,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 10:11:32,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:32,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:32,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:11:32,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:11:32,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:11:32,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:11:32,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:11:32,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:32,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:32,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:32,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 10:11:32,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:32,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 10:11:32,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:32,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:32,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:11:32,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:11:32,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:11:32,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:11:32,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-28 10:11:32,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:32,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:32,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:32,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 10:11:32,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:32,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 10:11:32,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:32,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:32,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:11:32,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:11:32,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:11:32,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:11:32,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 10:11:32,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:32,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:32,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:32,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 10:11:32,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:32,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 10:11:32,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:32,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:32,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:11:32,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:11:32,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 10:11:32,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:11:32,294 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 29 proven. 3 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-28 10:11:32,295 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1307512626] [2020-10-28 10:11:32,295 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:11:32,295 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 10:11:32,296 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459978493] [2020-10-28 10:11:32,296 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 10:11:32,296 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:11:32,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 10:11:32,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 10:11:32,298 INFO L87 Difference]: Start difference. First operand 2093 states and 2610 transitions. Second operand 5 states. [2020-10-28 10:11:32,526 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-28 10:11:34,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:11:34,389 INFO L93 Difference]: Finished difference Result 5655 states and 7237 transitions. [2020-10-28 10:11:34,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 10:11:34,390 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 132 [2020-10-28 10:11:34,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:11:34,415 INFO L225 Difference]: With dead ends: 5655 [2020-10-28 10:11:34,416 INFO L226 Difference]: Without dead ends: 3568 [2020-10-28 10:11:34,425 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 10:11:34,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3568 states. [2020-10-28 10:11:34,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3568 to 3123. [2020-10-28 10:11:34,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3123 states. [2020-10-28 10:11:34,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3123 states to 3123 states and 3945 transitions. [2020-10-28 10:11:34,603 INFO L78 Accepts]: Start accepts. Automaton has 3123 states and 3945 transitions. Word has length 132 [2020-10-28 10:11:34,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:11:34,604 INFO L481 AbstractCegarLoop]: Abstraction has 3123 states and 3945 transitions. [2020-10-28 10:11:34,604 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 10:11:34,604 INFO L276 IsEmpty]: Start isEmpty. Operand 3123 states and 3945 transitions. [2020-10-28 10:11:34,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-10-28 10:11:34,614 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:11:34,614 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:11:34,615 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 10:11:34,615 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:11:34,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:11:34,615 INFO L82 PathProgramCache]: Analyzing trace with hash 1477858158, now seen corresponding path program 1 times [2020-10-28 10:11:34,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:11:34,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [934637024] [2020-10-28 10:11:34,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:11:34,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:34,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:34,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:34,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:34,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:35,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:35,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:37,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:37,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:37,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:39,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:39,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-28 10:11:39,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-28 10:11:39,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-28 10:11:39,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:39,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:39,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 10:11:39,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-28 10:11:39,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-28 10:11:39,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:11:39,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:11:39,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:39,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:39,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:39,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:11:39,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:39,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 10:11:39,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:39,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:39,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:11:39,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:11:39,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:11:39,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:11:39,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:11:39,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:39,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:39,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:39,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 10:11:39,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:39,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 10:11:39,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:39,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:39,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:11:39,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:11:39,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:11:39,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:11:39,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-28 10:11:39,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:39,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:39,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:39,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 10:11:39,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:39,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 10:11:39,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:39,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:39,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:11:39,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:11:39,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 10:11:39,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:11:39,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 10:11:39,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:39,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:39,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:39,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:39,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 10:11:39,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 10:11:39,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 10:11:39,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:39,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:39,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:11:39,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:11:39,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 10:11:39,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:11:39,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-28 10:11:39,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:39,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:39,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:39,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 10:11:39,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:39,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-28 10:11:39,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:39,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:39,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:11:39,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 10:11:39,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-28 10:11:39,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:11:39,998 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 89 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-28 10:11:39,999 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [934637024] [2020-10-28 10:11:39,999 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:11:39,999 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 10:11:40,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179171134] [2020-10-28 10:11:40,000 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 10:11:40,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:11:40,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 10:11:40,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-28 10:11:40,001 INFO L87 Difference]: Start difference. First operand 3123 states and 3945 transitions. Second operand 8 states. [2020-10-28 10:11:41,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:11:41,210 INFO L93 Difference]: Finished difference Result 5986 states and 7829 transitions. [2020-10-28 10:11:41,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 10:11:41,211 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 161 [2020-10-28 10:11:41,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:11:41,232 INFO L225 Difference]: With dead ends: 5986 [2020-10-28 10:11:41,233 INFO L226 Difference]: Without dead ends: 2869 [2020-10-28 10:11:41,243 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-28 10:11:41,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2869 states. [2020-10-28 10:11:41,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2869 to 2518. [2020-10-28 10:11:41,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2518 states. [2020-10-28 10:11:41,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2518 states to 2518 states and 3124 transitions. [2020-10-28 10:11:41,348 INFO L78 Accepts]: Start accepts. Automaton has 2518 states and 3124 transitions. Word has length 161 [2020-10-28 10:11:41,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:11:41,348 INFO L481 AbstractCegarLoop]: Abstraction has 2518 states and 3124 transitions. [2020-10-28 10:11:41,348 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 10:11:41,349 INFO L276 IsEmpty]: Start isEmpty. Operand 2518 states and 3124 transitions. [2020-10-28 10:11:41,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-10-28 10:11:41,357 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:11:41,358 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 10:11:41,358 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 10:11:41,358 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:11:41,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:11:41,359 INFO L82 PathProgramCache]: Analyzing trace with hash 683191105, now seen corresponding path program 1 times [2020-10-28 10:11:41,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:11:41,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1036574948] [2020-10-28 10:11:41,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:11:41,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:41,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:41,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:41,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:43,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:43,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-28 10:11:43,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 10:11:43,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1978 [2020-10-28 10:11:43,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:43,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:43,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:11:43,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-28 10:11:43,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-28 10:11:43,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:11:43,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:11:43,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:43,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:43,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:43,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:11:43,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:43,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 10:11:43,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:43,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:43,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:11:43,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:11:43,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:11:43,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:11:43,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:11:43,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:43,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:43,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:43,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 10:11:43,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:43,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 10:11:43,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:43,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:43,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:11:43,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:11:43,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 10:11:43,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:11:43,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-28 10:11:43,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:11:43,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:11:43,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:11:43,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-28 10:11:43,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:11:43,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-28 10:11:43,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:11:43,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:11:43,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:11:43,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 10:11:43,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-28 10:11:43,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:11:43,734 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 78 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 10:11:43,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1036574948] [2020-10-28 10:11:43,735 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:11:43,735 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 10:11:43,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092604460] [2020-10-28 10:11:43,735 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 10:11:43,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:11:43,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 10:11:43,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 10:11:43,736 INFO L87 Difference]: Start difference. First operand 2518 states and 3124 transitions. Second operand 7 states. [2020-10-28 10:11:45,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:11:45,653 INFO L93 Difference]: Finished difference Result 5221 states and 6655 transitions. [2020-10-28 10:11:45,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 10:11:45,654 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 173 [2020-10-28 10:11:45,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:11:45,673 INFO L225 Difference]: With dead ends: 5221 [2020-10-28 10:11:45,674 INFO L226 Difference]: Without dead ends: 2853 [2020-10-28 10:11:45,682 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 10:11:45,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2853 states. [2020-10-28 10:11:45,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2853 to 2546. [2020-10-28 10:11:45,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2546 states. [2020-10-28 10:11:45,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2546 states to 2546 states and 3166 transitions. [2020-10-28 10:11:45,781 INFO L78 Accepts]: Start accepts. Automaton has 2546 states and 3166 transitions. Word has length 173 [2020-10-28 10:11:45,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:11:45,782 INFO L481 AbstractCegarLoop]: Abstraction has 2546 states and 3166 transitions. [2020-10-28 10:11:45,782 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 10:11:45,783 INFO L276 IsEmpty]: Start isEmpty. Operand 2546 states and 3166 transitions. [2020-10-28 10:11:45,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-10-28 10:11:45,793 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:11:45,793 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 10:11:45,794 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 10:11:45,794 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:11:45,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:11:45,795 INFO L82 PathProgramCache]: Analyzing trace with hash -194736007, now seen corresponding path program 1 times [2020-10-28 10:11:45,796 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:11:45,796 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1491143456] [2020-10-28 10:11:45,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:11:45,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-28 10:11:45,846 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-28 10:11:45,847 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-28 10:11:45,854 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 10:11:45,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 10:11:45 BoogieIcfgContainer [2020-10-28 10:11:45,908 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 10:11:45,917 INFO L168 Benchmark]: Toolchain (without parser) took 50954.76 ms. Allocated memory was 157.3 MB in the beginning and 933.2 MB in the end (delta: 775.9 MB). Free memory was 130.4 MB in the beginning and 394.4 MB in the end (delta: -264.0 MB). Peak memory consumption was 512.2 MB. Max. memory is 8.0 GB. [2020-10-28 10:11:45,918 INFO L168 Benchmark]: CDTParser took 0.63 ms. Allocated memory is still 157.3 MB. Free memory is still 129.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 10:11:45,919 INFO L168 Benchmark]: CACSL2BoogieTranslator took 669.18 ms. Allocated memory is still 157.3 MB. Free memory was 129.8 MB in the beginning and 136.3 MB in the end (delta: -6.5 MB). Peak memory consumption was 30.0 MB. Max. memory is 8.0 GB. [2020-10-28 10:11:45,920 INFO L168 Benchmark]: Boogie Preprocessor took 116.48 ms. Allocated memory is still 157.3 MB. Free memory was 136.3 MB in the beginning and 131.6 MB in the end (delta: 4.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-28 10:11:45,920 INFO L168 Benchmark]: RCFGBuilder took 1747.35 ms. Allocated memory is still 157.3 MB. Free memory was 131.6 MB in the beginning and 112.8 MB in the end (delta: 18.8 MB). Peak memory consumption was 88.1 MB. Max. memory is 8.0 GB. [2020-10-28 10:11:45,924 INFO L168 Benchmark]: TraceAbstraction took 48408.29 ms. Allocated memory was 157.3 MB in the beginning and 933.2 MB in the end (delta: 775.9 MB). Free memory was 112.3 MB in the beginning and 394.4 MB in the end (delta: -282.1 MB). Peak memory consumption was 493.3 MB. Max. memory is 8.0 GB. [2020-10-28 10:11:45,937 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.63 ms. Allocated memory is still 157.3 MB. Free memory is still 129.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 669.18 ms. Allocated memory is still 157.3 MB. Free memory was 129.8 MB in the beginning and 136.3 MB in the end (delta: -6.5 MB). Peak memory consumption was 30.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 116.48 ms. Allocated memory is still 157.3 MB. Free memory was 136.3 MB in the beginning and 131.6 MB in the end (delta: 4.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1747.35 ms. Allocated memory is still 157.3 MB. Free memory was 131.6 MB in the beginning and 112.8 MB in the end (delta: 18.8 MB). Peak memory consumption was 88.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 48408.29 ms. Allocated memory was 157.3 MB in the beginning and 933.2 MB in the end (delta: 775.9 MB). Free memory was 112.3 MB in the beginning and 394.4 MB in the end (delta: -282.1 MB). Peak memory consumption was 493.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 4]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L9] int a= 1; [L10] int e= 5; [L11] int d= 4; [L12] int f= 6; [L13] int c= 3; [L16] int u = 21; [L17] int v = 22; [L18] int w = 23; [L19] int x = 24; [L20] int y = 25; [L21] int z = 26; [L24] int a25 = 0; [L25] int a11 = 0; [L26] int a28 = 7; [L27] int a19 = 1; [L28] int a21 = 1; [L29] int a17 = 8; [L605] int output = -1; [L608] COND TRUE 1 [L611] int input; [L612] input = __VERIFIER_nondet_int() [L613] COND FALSE !((input != 1) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L616] CALL, EXPR calculate_output(input) [L32] COND FALSE !((((!(a11==1)&&((a19==1)&&((input==4)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))))&&(a21==1))&&(a17==8))) [L37] COND FALSE !(((a17==8)&&((((!(a11==1)&&((a21==1)&&(input==6)))&&(a28==7))&&(a19==1))&&!(a25==1)))) [L40] COND FALSE !(((a21==1)&&((a19==1)&&((((((a25==1)||!(a25==1))&&(input==3))&&(a17==9))&&(a11==1))&&(a28==9))))) [L44] COND FALSE !(((a28==9)&&(!(a19==1)&&((a21==1)&&((((input==4)&&!(a25==1))&&!(a11==1))&&(a17==8)))))) [L49] COND FALSE !(((((a17==8)&&((((input==1)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a19==1)))&&(a21==1))&&(a28==10))) [L52] COND TRUE ((a19==1)&&(!(a25==1)&&((a21==1)&&((((input==1)&&(a17==8))&&!(a11==1))&&(a28==7))))) [L53] a28 = 11 [L54] a25 = 1 [L55] return 26; [L616] RET, EXPR calculate_output(input) [L616] output = calculate_output(input) [L608] COND TRUE 1 [L611] int input; [L612] input = __VERIFIER_nondet_int() [L613] COND FALSE !((input != 1) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L616] CALL, EXPR calculate_output(input) [L32] COND FALSE !((((!(a11==1)&&((a19==1)&&((input==4)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))))&&(a21==1))&&(a17==8))) [L37] COND FALSE !(((a17==8)&&((((!(a11==1)&&((a21==1)&&(input==6)))&&(a28==7))&&(a19==1))&&!(a25==1)))) [L40] COND FALSE !(((a21==1)&&((a19==1)&&((((((a25==1)||!(a25==1))&&(input==3))&&(a17==9))&&(a11==1))&&(a28==9))))) [L44] COND FALSE !(((a28==9)&&(!(a19==1)&&((a21==1)&&((((input==4)&&!(a25==1))&&!(a11==1))&&(a17==8)))))) [L49] COND FALSE !(((((a17==8)&&((((input==1)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a19==1)))&&(a21==1))&&(a28==10))) [L52] COND FALSE !(((a19==1)&&(!(a25==1)&&((a21==1)&&((((input==1)&&(a17==8))&&!(a11==1))&&(a28==7)))))) [L56] COND FALSE !(((((!(a19==1)&&((input==1)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))))&&(a21==1))&&(a17==8))&&!(a11==1))) [L61] COND FALSE !(((a19==1)&&(((((input==1)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1)))))&&(a11==1))&&(a21==1))&&(a17==9)))) [L67] COND FALSE !(((a19==1)&&(((a17==8)&&(((input==6)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))&&!(a11==1)))&&(a21==1)))) [L71] COND FALSE !((!(a11==1)&&((((a21==1)&&((input==1)&&(((a28==8)&&!(a25==1))||((a25==1)&&(a28==9)))))&&!(a19==1))&&(a17==8)))) [L76] COND FALSE !((!(a19==1)&&(((((a17==8)&&((a25==1)&&(input==3)))&&(a28==10))&&!(a11==1))&&(a21==1)))) [L84] COND FALSE !((((!(a19==1)&&((a21==1)&&((((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1))))&&(input==4))))&&!(a11==1))&&(a17==8))) [L93] COND FALSE !(((a17==8)&&((a21==1)&&((a25==1)&&((a19==1)&&(!(a11==1)&&((a28==11)&&(input==3)))))))) [L97] COND FALSE !(((a28==9)&&(((!(a19==1)&&(((input==3)&&!(a11==1))&&(a17==8)))&&!(a25==1))&&(a21==1)))) [L101] COND FALSE !(((!(a11==1)&&(((a28==11)&&((a25==1)&&((input==1)&&(a19==1))))&&(a17==8)))&&(a21==1))) [L108] COND FALSE !((((a11==1)&&((((((a25==1)&&(a28==8))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7))))&&(input==6))&&(a19==1))&&(a17==9)))&&(a21==1))) [L115] COND FALSE !(((a17==8)&&((a21==1)&&(!(a11==1)&&(!(a19==1)&&(((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==3))))))) [L121] COND FALSE !((((((a21==1)&&((a28==10)&&((input==1)&&(a25==1))))&&!(a11==1))&&(a17==8))&&!(a19==1))) [L125] COND FALSE !((!(a11==1)&&(!(a19==1)&&(((a17==8)&&((input==6)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a28==8)&&(a25==1)))))&&(a21==1))))) [L132] COND FALSE !(((((a17==8)&&(!(a19==1)&&(((input==6)&&(a21==1))&&!(a25==1))))&&!(a11==1))&&(a28==9))) [L136] COND FALSE !((!(a11==1)&&((!(a25==1)&&(((a21==1)&&((input==1)&&(a19==1)))&&(a17==8)))&&(a28==11)))) [L141] COND FALSE !((((a11==1)&&(((a19==1)&&((a21==1)&&(((a25==1)||!(a25==1))&&(input==4))))&&(a17==9)))&&(a28==9))) [L145] COND FALSE !(((!(a11==1)&&((a28==9)&&(((!(a19==1)&&(input==5))&&!(a25==1))&&(a21==1))))&&(a17==8))) [L150] COND FALSE !(((!(a11==1)&&(((a17==8)&&(((((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))||((a28==8)&&(a25==1)))&&(input==3)))&&!(a19==1)))&&(a21==1))) [L156] COND FALSE !(((a21==1)&&(!(a19==1)&&((((input==5)&&(((a28==8)&&(a25==1))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7)))))&&!(a11==1))&&(a17==8))))) [L161] COND FALSE !((((a17==9)&&(((a28==8)&&(((input==1)&&(a19==1))&&!(a25==1)))&&(a11==1)))&&(a21==1))) [L167] COND FALSE !((((a21==1)&&((a19==1)&&((a28==7)&&((a17==8)&&(!(a25==1)&&(input==3))))))&&!(a11==1))) [L171] COND FALSE !(((a28==11)&&(((a17==8)&&((((input==6)&&(a21==1))&&(a19==1))&&!(a25==1)))&&!(a11==1)))) [L177] COND FALSE !(((!(a11==1)&&(((a17==8)&&((a21==1)&&((input==3)&&(a28==8))))&&(a19==1)))&&(a25==1))) [L181] COND FALSE !((((a21==1)&&(((a19==1)&&(((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))&&(input==4)))&&(a11==1)))&&(a17==9))) [L187] COND FALSE !((((!(a11==1)&&((a17==8)&&(((input==4)&&(a19==1))&&(a28==8))))&&(a21==1))&&(a25==1))) [L189] COND FALSE !(((a19==1)&&((((((input==4)&&(a21==1))&&(a28==9))&&!(a25==1))&&!(a11==1))&&(a17==8)))) [L191] COND FALSE !(((a17==8)&&((((((input==1)&&(a21==1))&&!(a11==1))&&(a19==1))&&!(a25==1))&&(a28==9)))) [L193] COND FALSE !((((((((input==4)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a21==1))&&(a17==8))&&(a28==10))&&(a19==1))) [L196] COND FALSE !(((!(a25==1)&&((a11==1)&&((a28==8)&&(((a17==9)&&(input==4))&&(a19==1)))))&&(a21==1))) [L200] COND FALSE !((!(a19==1)&&((a17==8)&&((a28==10)&&(((a25==1)&&(!(a11==1)&&(input==5)))&&(a21==1)))))) [L204] COND FALSE !((((((a21==1)&&((input==1)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))))&&(a17==8))&&!(a11==1))&&(a19==1))) [L214] COND FALSE !(((a21==1)&&((((a19==1)&&((a25==1)&&((a28==11)&&(input==6))))&&!(a11==1))&&(a17==8)))) [L217] COND FALSE !((!(a11==1)&&((a19==1)&&((a28==10)&&(((((a25==1)||!(a25==1))&&(input==5))&&(a17==8))&&(a21==1)))))) [L220] COND FALSE !((((((a17==9)&&((((a25==1)||!(a25==1))&&(input==6))&&(a11==1)))&&(a19==1))&&(a21==1))&&(a28==9))) [L225] COND FALSE !((((a17==8)&&(((((input==6)&&(a25==1))&&!(a19==1))&&!(a11==1))&&(a28==10)))&&(a21==1))) [L227] COND FALSE !(((!(a19==1)&&((a17==8)&&(!(a11==1)&&((input==1)&&((((a28==10)&&!(a25==1))||((a25==1)&&(a28==11)))||(!(a25==1)&&(a28==11)))))))&&(a21==1))) [L234] COND FALSE !((((((((input==1)&&(a21==1))&&(a28==9))&&!(a19==1))&&!(a25==1))&&(a17==8))&&!(a11==1))) [L236] COND FALSE !(((a17==8)&&(((!(a11==1)&&((!(a25==1)&&(input==4))&&(a19==1)))&&(a28==7))&&(a21==1)))) [L239] COND FALSE !((!(a11==1)&&(((a17==8)&&((((!(a25==1)&&(a28==11))||((!(a25==1)&&(a28==10))||((a28==11)&&(a25==1))))&&(input==3))&&(a21==1)))&&!(a19==1)))) [L250] COND FALSE !(((((!(a11==1)&&(((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==5)))&&(a21==1))&&!(a19==1))&&(a17==8))) [L255] COND FALSE !((((a17==9)&&(((((input==1)&&((a25==1)||!(a25==1)))&&(a11==1))&&(a21==1))&&(a19==1)))&&(a28==9))) [L261] COND FALSE !((!(a11==1)&&((a19==1)&&(((((a28==9)&&(input==6))&&(a21==1))&&(a17==8))&&!(a25==1))))) [L263] COND FALSE !(((a17==9)&&((a21==1)&&((a11==1)&&(((input==3)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))))&&(a19==1)))))) [L278] COND FALSE !(((a28==7)&&((a17==8)&&(!(a25==1)&&((a21==1)&&((a19==1)&&((input==5)&&!(a11==1)))))))) [L282] COND FALSE !(((a28==8)&&((a21==1)&&((!(a11==1)&&(((input==1)&&(a17==8))&&(a19==1)))&&(a25==1))))) [L285] COND FALSE !((((((a17==8)&&(((input==6)&&((a25==1)||!(a25==1)))&&(a21==1)))&&(a28==10))&&!(a11==1))&&(a19==1))) [L288] COND FALSE !(((!(a11==1)&&((!(a19==1)&&(((!(a25==1)&&(a28==11))||(((a28==10)&&!(a25==1))||((a25==1)&&(a28==11))))&&(input==5)))&&(a17==8)))&&(a21==1))) [L293] COND FALSE !(((a17==8)&&(((a21==1)&&(!(a11==1)&&((a25==1)&&((a28==8)&&(input==6)))))&&(a19==1)))) [L295] COND FALSE !((((a19==1)&&((a17==8)&&(((!(a25==1)&&(input==5))&&(a21==1))&&!(a11==1))))&&(a28==11))) [L299] COND FALSE !(((a11==1)&&(((a17==9)&&((a28==9)&&((a19==1)&&(((a25==1)||!(a25==1))&&(input==5)))))&&(a21==1)))) [L311] COND FALSE !((((((((input==3)&&(a19==1))&&(a21==1))&&(a17==8))&&!(a25==1))&&(a28==11))&&!(a11==1))) [L316] COND FALSE !(((a19==1)&&((a21==1)&&((((input==5)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))))&&(a11==1))&&(a17==9))))) [L330] COND FALSE !((((a19==1)&&(((!(a11==1)&&(((a25==1)||!(a25==1))&&(input==3)))&&(a28==10))&&(a21==1)))&&(a17==8))) [L333] COND FALSE !(((!(a11==1)&&(((((input==4)&&(a17==8))&&!(a25==1))&&(a21==1))&&(a28==11)))&&(a19==1))) [L339] COND FALSE !((((!(a19==1)&&(((input==4)&&(((!(a25==1)&&(a28==10))||((a28==11)&&(a25==1)))||(!(a25==1)&&(a28==11))))&&(a21==1)))&&(a17==8))&&!(a11==1))) [L351] COND TRUE (!(a11==1)&&(((a17==8)&&((((a25==1)&&(input==4))&&(a19==1))&&(a28==11)))&&(a21==1))) [L352] a28 = 9 [L353] a11 = 1 [L354] a25 = 0 [L355] return -1; [L616] RET, EXPR calculate_output(input) [L616] output = calculate_output(input) [L608] COND TRUE 1 [L611] int input; [L612] input = __VERIFIER_nondet_int() [L613] COND FALSE !((input != 1) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L616] CALL calculate_output(input) [L32] COND FALSE !((((!(a11==1)&&((a19==1)&&((input==4)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))))&&(a21==1))&&(a17==8))) [L37] COND FALSE !(((a17==8)&&((((!(a11==1)&&((a21==1)&&(input==6)))&&(a28==7))&&(a19==1))&&!(a25==1)))) [L40] COND FALSE !(((a21==1)&&((a19==1)&&((((((a25==1)||!(a25==1))&&(input==3))&&(a17==9))&&(a11==1))&&(a28==9))))) [L44] COND FALSE !(((a28==9)&&(!(a19==1)&&((a21==1)&&((((input==4)&&!(a25==1))&&!(a11==1))&&(a17==8)))))) [L49] COND FALSE !(((((a17==8)&&((((input==1)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a19==1)))&&(a21==1))&&(a28==10))) [L52] COND FALSE !(((a19==1)&&(!(a25==1)&&((a21==1)&&((((input==1)&&(a17==8))&&!(a11==1))&&(a28==7)))))) [L56] COND FALSE !(((((!(a19==1)&&((input==1)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))))&&(a21==1))&&(a17==8))&&!(a11==1))) [L61] COND FALSE !(((a19==1)&&(((((input==1)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1)))))&&(a11==1))&&(a21==1))&&(a17==9)))) [L67] COND FALSE !(((a19==1)&&(((a17==8)&&(((input==6)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))&&!(a11==1)))&&(a21==1)))) [L71] COND FALSE !((!(a11==1)&&((((a21==1)&&((input==1)&&(((a28==8)&&!(a25==1))||((a25==1)&&(a28==9)))))&&!(a19==1))&&(a17==8)))) [L76] COND FALSE !((!(a19==1)&&(((((a17==8)&&((a25==1)&&(input==3)))&&(a28==10))&&!(a11==1))&&(a21==1)))) [L84] COND FALSE !((((!(a19==1)&&((a21==1)&&((((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1))))&&(input==4))))&&!(a11==1))&&(a17==8))) [L93] COND FALSE !(((a17==8)&&((a21==1)&&((a25==1)&&((a19==1)&&(!(a11==1)&&((a28==11)&&(input==3)))))))) [L97] COND FALSE !(((a28==9)&&(((!(a19==1)&&(((input==3)&&!(a11==1))&&(a17==8)))&&!(a25==1))&&(a21==1)))) [L101] COND FALSE !(((!(a11==1)&&(((a28==11)&&((a25==1)&&((input==1)&&(a19==1))))&&(a17==8)))&&(a21==1))) [L108] COND FALSE !((((a11==1)&&((((((a25==1)&&(a28==8))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7))))&&(input==6))&&(a19==1))&&(a17==9)))&&(a21==1))) [L115] COND FALSE !(((a17==8)&&((a21==1)&&(!(a11==1)&&(!(a19==1)&&(((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==3))))))) [L121] COND FALSE !((((((a21==1)&&((a28==10)&&((input==1)&&(a25==1))))&&!(a11==1))&&(a17==8))&&!(a19==1))) [L125] COND FALSE !((!(a11==1)&&(!(a19==1)&&(((a17==8)&&((input==6)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a28==8)&&(a25==1)))))&&(a21==1))))) [L132] COND FALSE !(((((a17==8)&&(!(a19==1)&&(((input==6)&&(a21==1))&&!(a25==1))))&&!(a11==1))&&(a28==9))) [L136] COND FALSE !((!(a11==1)&&((!(a25==1)&&(((a21==1)&&((input==1)&&(a19==1)))&&(a17==8)))&&(a28==11)))) [L141] COND FALSE !((((a11==1)&&(((a19==1)&&((a21==1)&&(((a25==1)||!(a25==1))&&(input==4))))&&(a17==9)))&&(a28==9))) [L145] COND FALSE !(((!(a11==1)&&((a28==9)&&(((!(a19==1)&&(input==5))&&!(a25==1))&&(a21==1))))&&(a17==8))) [L150] COND FALSE !(((!(a11==1)&&(((a17==8)&&(((((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))||((a28==8)&&(a25==1)))&&(input==3)))&&!(a19==1)))&&(a21==1))) [L156] COND FALSE !(((a21==1)&&(!(a19==1)&&((((input==5)&&(((a28==8)&&(a25==1))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7)))))&&!(a11==1))&&(a17==8))))) [L161] COND FALSE !((((a17==9)&&(((a28==8)&&(((input==1)&&(a19==1))&&!(a25==1)))&&(a11==1)))&&(a21==1))) [L167] COND FALSE !((((a21==1)&&((a19==1)&&((a28==7)&&((a17==8)&&(!(a25==1)&&(input==3))))))&&!(a11==1))) [L171] COND FALSE !(((a28==11)&&(((a17==8)&&((((input==6)&&(a21==1))&&(a19==1))&&!(a25==1)))&&!(a11==1)))) [L177] COND FALSE !(((!(a11==1)&&(((a17==8)&&((a21==1)&&((input==3)&&(a28==8))))&&(a19==1)))&&(a25==1))) [L181] COND FALSE !((((a21==1)&&(((a19==1)&&(((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))&&(input==4)))&&(a11==1)))&&(a17==9))) [L187] COND FALSE !((((!(a11==1)&&((a17==8)&&(((input==4)&&(a19==1))&&(a28==8))))&&(a21==1))&&(a25==1))) [L189] COND FALSE !(((a19==1)&&((((((input==4)&&(a21==1))&&(a28==9))&&!(a25==1))&&!(a11==1))&&(a17==8)))) [L191] COND FALSE !(((a17==8)&&((((((input==1)&&(a21==1))&&!(a11==1))&&(a19==1))&&!(a25==1))&&(a28==9)))) [L193] COND FALSE !((((((((input==4)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a21==1))&&(a17==8))&&(a28==10))&&(a19==1))) [L196] COND FALSE !(((!(a25==1)&&((a11==1)&&((a28==8)&&(((a17==9)&&(input==4))&&(a19==1)))))&&(a21==1))) [L200] COND FALSE !((!(a19==1)&&((a17==8)&&((a28==10)&&(((a25==1)&&(!(a11==1)&&(input==5)))&&(a21==1)))))) [L204] COND FALSE !((((((a21==1)&&((input==1)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))))&&(a17==8))&&!(a11==1))&&(a19==1))) [L214] COND FALSE !(((a21==1)&&((((a19==1)&&((a25==1)&&((a28==11)&&(input==6))))&&!(a11==1))&&(a17==8)))) [L217] COND FALSE !((!(a11==1)&&((a19==1)&&((a28==10)&&(((((a25==1)||!(a25==1))&&(input==5))&&(a17==8))&&(a21==1)))))) [L220] COND FALSE !((((((a17==9)&&((((a25==1)||!(a25==1))&&(input==6))&&(a11==1)))&&(a19==1))&&(a21==1))&&(a28==9))) [L225] COND FALSE !((((a17==8)&&(((((input==6)&&(a25==1))&&!(a19==1))&&!(a11==1))&&(a28==10)))&&(a21==1))) [L227] COND FALSE !(((!(a19==1)&&((a17==8)&&(!(a11==1)&&((input==1)&&((((a28==10)&&!(a25==1))||((a25==1)&&(a28==11)))||(!(a25==1)&&(a28==11)))))))&&(a21==1))) [L234] COND FALSE !((((((((input==1)&&(a21==1))&&(a28==9))&&!(a19==1))&&!(a25==1))&&(a17==8))&&!(a11==1))) [L236] COND FALSE !(((a17==8)&&(((!(a11==1)&&((!(a25==1)&&(input==4))&&(a19==1)))&&(a28==7))&&(a21==1)))) [L239] COND FALSE !((!(a11==1)&&(((a17==8)&&((((!(a25==1)&&(a28==11))||((!(a25==1)&&(a28==10))||((a28==11)&&(a25==1))))&&(input==3))&&(a21==1)))&&!(a19==1)))) [L250] COND FALSE !(((((!(a11==1)&&(((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==5)))&&(a21==1))&&!(a19==1))&&(a17==8))) [L255] COND FALSE !((((a17==9)&&(((((input==1)&&((a25==1)||!(a25==1)))&&(a11==1))&&(a21==1))&&(a19==1)))&&(a28==9))) [L261] COND FALSE !((!(a11==1)&&((a19==1)&&(((((a28==9)&&(input==6))&&(a21==1))&&(a17==8))&&!(a25==1))))) [L263] COND FALSE !(((a17==9)&&((a21==1)&&((a11==1)&&(((input==3)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))))&&(a19==1)))))) [L278] COND FALSE !(((a28==7)&&((a17==8)&&(!(a25==1)&&((a21==1)&&((a19==1)&&((input==5)&&!(a11==1)))))))) [L282] COND FALSE !(((a28==8)&&((a21==1)&&((!(a11==1)&&(((input==1)&&(a17==8))&&(a19==1)))&&(a25==1))))) [L285] COND FALSE !((((((a17==8)&&(((input==6)&&((a25==1)||!(a25==1)))&&(a21==1)))&&(a28==10))&&!(a11==1))&&(a19==1))) [L288] COND FALSE !(((!(a11==1)&&((!(a19==1)&&(((!(a25==1)&&(a28==11))||(((a28==10)&&!(a25==1))||((a25==1)&&(a28==11))))&&(input==5)))&&(a17==8)))&&(a21==1))) [L293] COND FALSE !(((a17==8)&&(((a21==1)&&(!(a11==1)&&((a25==1)&&((a28==8)&&(input==6)))))&&(a19==1)))) [L295] COND FALSE !((((a19==1)&&((a17==8)&&(((!(a25==1)&&(input==5))&&(a21==1))&&!(a11==1))))&&(a28==11))) [L299] COND FALSE !(((a11==1)&&(((a17==9)&&((a28==9)&&((a19==1)&&(((a25==1)||!(a25==1))&&(input==5)))))&&(a21==1)))) [L311] COND FALSE !((((((((input==3)&&(a19==1))&&(a21==1))&&(a17==8))&&!(a25==1))&&(a28==11))&&!(a11==1))) [L316] COND FALSE !(((a19==1)&&((a21==1)&&((((input==5)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))))&&(a11==1))&&(a17==9))))) [L330] COND FALSE !((((a19==1)&&(((!(a11==1)&&(((a25==1)||!(a25==1))&&(input==3)))&&(a28==10))&&(a21==1)))&&(a17==8))) [L333] COND FALSE !(((!(a11==1)&&(((((input==4)&&(a17==8))&&!(a25==1))&&(a21==1))&&(a28==11)))&&(a19==1))) [L339] COND FALSE !((((!(a19==1)&&(((input==4)&&(((!(a25==1)&&(a28==10))||((a28==11)&&(a25==1)))||(!(a25==1)&&(a28==11))))&&(a21==1)))&&(a17==8))&&!(a11==1))) [L351] COND FALSE !((!(a11==1)&&(((a17==8)&&((((a25==1)&&(input==4))&&(a19==1))&&(a28==11)))&&(a21==1)))) [L356] COND FALSE !((((((a21==1)&&((((a28==8)&&!(a25==1))||((a28==9)&&(a25==1)))&&(input==6)))&&!(a11==1))&&!(a19==1))&&(a17==8))) [L363] COND FALSE !(((a19==1)&&((((a21==1)&&((!(a25==1)&&(input==3))&&(a17==9)))&&(a28==8))&&(a11==1)))) [L370] COND FALSE !(((a17==8)&&(((a21==1)&&(((input==5)&&((!(a25==1)&&(a28==8))||((a28==9)&&(a25==1))))&&(a19==1)))&&!(a11==1)))) [L377] COND FALSE !(((a19==1)&&(((((a17==8)&&((input==5)&&!(a11==1)))&&(a21==1))&&(a25==1))&&(a28==8)))) [L380] COND FALSE !((((!(a11==1)&&((((a21==1)&&(input==4))&&(a28==10))&&(a17==8)))&&!(a19==1))&&(a25==1))) [L382] COND FALSE !(((a28==8)&&(((a19==1)&&((a11==1)&&(!(a25==1)&&((a17==9)&&(input==6)))))&&(a21==1)))) [L391] COND FALSE !((!(a11==1)&&((((a21==1)&&((input==6)&&((((a28==10)&&!(a25==1))||((a25==1)&&(a28==11)))||(!(a25==1)&&(a28==11)))))&&(a17==8))&&!(a19==1)))) [L396] COND FALSE !((((((!(a25==1)&&((a19==1)&&(input==3)))&&(a28==9))&&(a21==1))&&(a17==8))&&!(a11==1))) [L400] COND FALSE !((((a17==8)&&((((input==4)&&(((a28==8)&&!(a25==1))||((a25==1)&&(a28==9))))&&(a21==1))&&!(a19==1)))&&!(a11==1))) [L404] COND FALSE !((((!(a11==1)&&((((a19==1)&&(input==5))&&(a17==8))&&(a21==1)))&&(a28==9))&&!(a25==1))) [L406] COND FALSE !((((a11==1)&&((a19==1)&&((a21==1)&&(((a17==9)&&(input==5))&&!(a25==1)))))&&(a28==8))) [L409] COND FALSE !((!(a11==1)&&((a21==1)&&(((a19==1)&&((a17==8)&&((a25==1)&&(input==5))))&&(a28==11))))) [L411] COND FALSE !(((a19==1)&&((a17==8)&&(((((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==3))&&!(a11==1))&&(a21==1))))) [L416] COND FALSE !((((((!(a25==1)&&(a11==1))&&(a28==7))&&!(a19==1))&&(a21==1))&&(a17==8))) [L419] COND FALSE !(((((((a25==1)&&(a11==1))&&(a28==10))&&(a19==1))&&(a21==1))&&(a17==8))) [L422] COND FALSE !(((((((a25==1)&&!(a11==1))&&(a28==7))&&(a19==1))&&(a21==1))&&(a17==8))) [L425] COND FALSE !(((((((a25==1)&&(a11==1))&&(a28==7))&&(a19==1))&&(a21==1))&&(a17==7))) [L428] COND FALSE !(((((((a25==1)&&(a11==1))&&(a28==9))&&(a19==1))&&(a21==1))&&(a17==8))) [L431] COND FALSE !(((((((a25==1)&&(a11==1))&&(a28==9))&&!(a19==1))&&(a21==1))&&(a17==7))) [L434] COND FALSE !((((((!(a25==1)&&(a11==1))&&(a28==10))&&!(a19==1))&&(a21==1))&&(a17==7))) [L437] COND TRUE (((((!(a25==1)&&(a11==1))&&(a28==9))&&(a19==1))&&(a21==1))&&(a17==8)) [L438] CALL reach_error() [L4] __assert_fail("0", "Problem02_label44.c", 4, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 240 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 48.2s, OverallIterations: 9, TraceHistogramMax: 5, AutomataDifference: 15.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 284 SDtfs, 2808 SDslu, 316 SDs, 0 SdLazy, 5779 SolverSat, 854 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 113 GetRequests, 64 SyntacticMatches, 6 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3123occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 8 MinimizatonAttempts, 1271 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 31.2s InterpolantComputationTime, 1209 NumberOfCodeBlocks, 1209 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1024 ConstructedInterpolants, 0 QuantifiedInterpolants, 524815 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 1 PerfectInterpolantSequences, 310/331 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...