/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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 SingleStatement --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 log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_1b.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 17:06:33,195 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 17:06:33,199 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 17:06:33,243 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 17:06:33,245 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 17:06:33,253 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 17:06:33,256 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 17:06:33,259 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 17:06:33,262 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 17:06:33,265 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 17:06:33,266 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 17:06:33,267 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 17:06:33,267 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 17:06:33,270 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 17:06:33,273 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 17:06:33,275 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 17:06:33,277 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 17:06:33,278 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 17:06:33,280 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 17:06:33,288 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 17:06:33,291 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 17:06:33,292 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 17:06:33,293 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 17:06:33,294 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 17:06:33,306 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 17:06:33,313 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 17:06:33,313 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 17:06:33,314 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 17:06:33,317 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 17:06:33,318 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 17:06:33,318 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 17:06:33,319 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 17:06:33,322 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 17:06:33,323 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 17:06:33,324 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 17:06:33,326 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 17:06:33,327 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 17:06:33,327 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 17:06:33,327 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 17:06:33,328 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 17:06:33,330 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 17:06:33,331 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 [2020-09-24 17:06:33,377 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 17:06:33,378 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 17:06:33,380 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 17:06:33,381 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 17:06:33,381 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 17:06:33,381 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 17:06:33,381 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 17:06:33,382 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 17:06:33,382 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 17:06:33,382 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 17:06:33,383 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 17:06:33,383 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 17:06:33,384 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 17:06:33,384 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 17:06:33,384 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 17:06:33,385 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 17:06:33,385 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 17:06:33,385 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 17:06:33,385 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 17:06:33,385 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 17:06:33,386 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 17:06:33,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 17:06:33,386 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 17:06:33,386 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 17:06:33,386 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 17:06:33,387 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 17:06:33,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 17:06:33,387 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 17:06:33,387 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 17:06:33,387 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> SingleStatement 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;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true; [2020-09-24 17:06:33,894 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 17:06:33,914 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 17:06:33,920 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 17:06:33,922 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 17:06:33,922 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 17:06:33,924 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_1b.cil.c [2020-09-24 17:06:34,009 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/34b26eb64/54ef309db6834f75b091e6463bb47348/FLAG4f566ed5c [2020-09-24 17:06:34,524 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 17:06:34,525 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_srvr_1b.cil.c [2020-09-24 17:06:34,535 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/34b26eb64/54ef309db6834f75b091e6463bb47348/FLAG4f566ed5c [2020-09-24 17:06:34,863 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/34b26eb64/54ef309db6834f75b091e6463bb47348 [2020-09-24 17:06:34,876 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 17:06:34,882 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 17:06:34,885 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 17:06:34,885 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 17:06:34,890 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 17:06:34,891 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:06:34" (1/1) ... [2020-09-24 17:06:34,897 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67f72d40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:06:34, skipping insertion in model container [2020-09-24 17:06:34,897 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:06:34" (1/1) ... [2020-09-24 17:06:34,908 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 17:06:34,946 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 17:06:35,179 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:06:35,184 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 17:06:35,207 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:06:35,223 INFO L208 MainTranslator]: Completed translation [2020-09-24 17:06:35,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:06:35 WrapperNode [2020-09-24 17:06:35,224 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 17:06:35,225 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 17:06:35,225 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 17:06:35,225 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 17:06:35,240 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:06:35" (1/1) ... [2020-09-24 17:06:35,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:06:35" (1/1) ... [2020-09-24 17:06:35,325 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:06:35" (1/1) ... [2020-09-24 17:06:35,325 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:06:35" (1/1) ... [2020-09-24 17:06:35,330 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:06:35" (1/1) ... [2020-09-24 17:06:35,339 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:06:35" (1/1) ... [2020-09-24 17:06:35,344 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:06:35" (1/1) ... [2020-09-24 17:06:35,352 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 17:06:35,354 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 17:06:35,354 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 17:06:35,354 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 17:06:35,356 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:06:35" (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 [2020-09-24 17:06:35,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 17:06:35,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 17:06:35,437 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 17:06:35,437 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 17:06:35,437 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-24 17:06:35,437 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 17:06:35,438 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-24 17:06:35,438 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 17:06:35,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 17:06:35,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 17:06:35,732 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 17:06:35,732 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-24 17:06:35,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:06:35 BoogieIcfgContainer [2020-09-24 17:06:35,737 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 17:06:35,738 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 17:06:35,739 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 17:06:35,743 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 17:06:35,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 05:06:34" (1/3) ... [2020-09-24 17:06:35,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cedd8e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:06:35, skipping insertion in model container [2020-09-24 17:06:35,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:06:35" (2/3) ... [2020-09-24 17:06:35,745 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cedd8e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:06:35, skipping insertion in model container [2020-09-24 17:06:35,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:06:35" (3/3) ... [2020-09-24 17:06:35,748 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_srvr_1b.cil.c [2020-09-24 17:06:35,758 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 17:06:35,770 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 17:06:35,791 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 17:06:35,821 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 17:06:35,821 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 17:06:35,821 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 17:06:35,822 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 17:06:35,822 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 17:06:35,822 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 17:06:35,822 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 17:06:35,822 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 17:06:35,844 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states. [2020-09-24 17:06:35,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-24 17:06:35,851 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:06:35,852 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:06:35,853 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:06:35,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:06:35,859 INFO L82 PathProgramCache]: Analyzing trace with hash -936940309, now seen corresponding path program 1 times [2020-09-24 17:06:35,868 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:06:35,869 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [574485906] [2020-09-24 17:06:35,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:06:35,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:36,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:36,054 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:36,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 17:06:36,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:06:36,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-24 17:06:36,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:36,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:06:36,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 17:06:36,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 17:06:36,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 17:06:36,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:06:36,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:36,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:36,125 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:36,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:06:36,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:06:36,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:06:36,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:36,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:06:36,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:06:36,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:06:36,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:06:36,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:06:36,135 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [574485906] [2020-09-24 17:06:36,138 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:06:36,138 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 17:06:36,139 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322796822] [2020-09-24 17:06:36,146 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 17:06:36,146 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:06:36,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 17:06:36,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:06:36,169 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 3 states. [2020-09-24 17:06:36,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:06:36,290 INFO L93 Difference]: Finished difference Result 110 states and 156 transitions. [2020-09-24 17:06:36,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 17:06:36,294 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2020-09-24 17:06:36,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:06:36,312 INFO L225 Difference]: With dead ends: 110 [2020-09-24 17:06:36,313 INFO L226 Difference]: Without dead ends: 66 [2020-09-24 17:06:36,319 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:06:36,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-24 17:06:36,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-09-24 17:06:36,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-09-24 17:06:36,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 82 transitions. [2020-09-24 17:06:36,456 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 82 transitions. Word has length 15 [2020-09-24 17:06:36,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:06:36,462 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 82 transitions. [2020-09-24 17:06:36,462 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 17:06:36,463 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 82 transitions. [2020-09-24 17:06:36,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-24 17:06:36,464 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:06:36,464 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:06:36,466 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 17:06:36,466 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:06:36,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:06:36,467 INFO L82 PathProgramCache]: Analyzing trace with hash -1261763386, now seen corresponding path program 1 times [2020-09-24 17:06:36,467 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:06:36,468 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1675658594] [2020-09-24 17:06:36,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:06:36,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:36,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:36,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:36,591 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:36,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 17:06:36,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 17:06:36,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-24 17:06:36,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:36,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:06:36,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-24 17:06:36,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 17:06:36,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:06:36,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:06:36,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:36,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:36,640 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:36,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:06:36,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:06:36,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 17:06:36,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:36,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:06:36,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:06:36,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:06:36,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 17:06:36,652 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:06:36,657 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1675658594] [2020-09-24 17:06:36,658 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:06:36,658 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 17:06:36,659 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674294889] [2020-09-24 17:06:36,663 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 17:06:36,664 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:06:36,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 17:06:36,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:06:36,665 INFO L87 Difference]: Start difference. First operand 66 states and 82 transitions. Second operand 3 states. [2020-09-24 17:06:36,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:06:36,762 INFO L93 Difference]: Finished difference Result 134 states and 172 transitions. [2020-09-24 17:06:36,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 17:06:36,763 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-09-24 17:06:36,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:06:36,765 INFO L225 Difference]: With dead ends: 134 [2020-09-24 17:06:36,766 INFO L226 Difference]: Without dead ends: 80 [2020-09-24 17:06:36,767 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:06:36,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-09-24 17:06:36,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 76. [2020-09-24 17:06:36,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-09-24 17:06:36,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 92 transitions. [2020-09-24 17:06:36,782 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 92 transitions. Word has length 22 [2020-09-24 17:06:36,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:06:36,783 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 92 transitions. [2020-09-24 17:06:36,783 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 17:06:36,783 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 92 transitions. [2020-09-24 17:06:36,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-24 17:06:36,784 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:06:36,785 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:06:36,785 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 17:06:36,785 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:06:36,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:06:36,786 INFO L82 PathProgramCache]: Analyzing trace with hash -1258903450, now seen corresponding path program 1 times [2020-09-24 17:06:36,786 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:06:36,786 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1493351097] [2020-09-24 17:06:36,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:06:36,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:36,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:36,848 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:36,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 17:06:36,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:06:36,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-24 17:06:36,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:36,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:06:36,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-24 17:06:36,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 17:06:36,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 17:06:36,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:06:36,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:36,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:36,892 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:36,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:06:36,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:06:36,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 17:06:36,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:36,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:06:36,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:06:36,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:06:36,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:06:36,897 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:06:36,897 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1493351097] [2020-09-24 17:06:36,898 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:06:36,898 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 17:06:36,898 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605500493] [2020-09-24 17:06:36,899 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 17:06:36,899 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:06:36,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 17:06:36,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:06:36,900 INFO L87 Difference]: Start difference. First operand 76 states and 92 transitions. Second operand 3 states. [2020-09-24 17:06:36,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:06:36,968 INFO L93 Difference]: Finished difference Result 140 states and 177 transitions. [2020-09-24 17:06:36,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 17:06:36,969 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-09-24 17:06:36,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:06:36,971 INFO L225 Difference]: With dead ends: 140 [2020-09-24 17:06:36,971 INFO L226 Difference]: Without dead ends: 105 [2020-09-24 17:06:36,972 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:06:36,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-09-24 17:06:36,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2020-09-24 17:06:36,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-09-24 17:06:36,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 128 transitions. [2020-09-24 17:06:37,000 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 128 transitions. Word has length 22 [2020-09-24 17:06:37,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:06:37,001 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 128 transitions. [2020-09-24 17:06:37,001 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 17:06:37,001 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 128 transitions. [2020-09-24 17:06:37,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-24 17:06:37,004 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:06:37,005 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-24 17:06:37,005 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 17:06:37,005 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:06:37,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:06:37,006 INFO L82 PathProgramCache]: Analyzing trace with hash 122238776, now seen corresponding path program 1 times [2020-09-24 17:06:37,006 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:06:37,007 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1657053382] [2020-09-24 17:06:37,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:06:37,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:37,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:37,122 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:37,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 17:06:37,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:06:37,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-24 17:06:37,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:37,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:06:37,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-09-24 17:06:37,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 17:06:37,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:06:37,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:06:37,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:37,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:37,164 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:37,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:06:37,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:06:37,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:06:37,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:37,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:06:37,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:06:37,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:06:37,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:06:37,180 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-24 17:06:37,180 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1657053382] [2020-09-24 17:06:37,180 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:06:37,181 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 17:06:37,181 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929645255] [2020-09-24 17:06:37,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 17:06:37,185 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:06:37,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 17:06:37,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:06:37,186 INFO L87 Difference]: Start difference. First operand 105 states and 128 transitions. Second operand 3 states. [2020-09-24 17:06:37,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:06:37,270 INFO L93 Difference]: Finished difference Result 200 states and 250 transitions. [2020-09-24 17:06:37,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 17:06:37,271 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2020-09-24 17:06:37,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:06:37,273 INFO L225 Difference]: With dead ends: 200 [2020-09-24 17:06:37,273 INFO L226 Difference]: Without dead ends: 136 [2020-09-24 17:06:37,274 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:06:37,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-09-24 17:06:37,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 134. [2020-09-24 17:06:37,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-09-24 17:06:37,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 166 transitions. [2020-09-24 17:06:37,292 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 166 transitions. Word has length 30 [2020-09-24 17:06:37,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:06:37,292 INFO L479 AbstractCegarLoop]: Abstraction has 134 states and 166 transitions. [2020-09-24 17:06:37,293 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 17:06:37,293 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 166 transitions. [2020-09-24 17:06:37,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-24 17:06:37,294 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:06:37,294 INFO L422 BasicCegarLoop]: trace histogram [3, 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] [2020-09-24 17:06:37,295 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 17:06:37,295 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:06:37,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:06:37,295 INFO L82 PathProgramCache]: Analyzing trace with hash 1207592178, now seen corresponding path program 1 times [2020-09-24 17:06:37,296 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:06:37,296 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [266390990] [2020-09-24 17:06:37,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:06:37,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:37,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:37,345 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:37,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 17:06:37,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:06:37,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-24 17:06:37,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:37,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:06:37,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-24 17:06:37,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 17:06:37,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:06:37,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:06:37,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:37,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:37,378 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:37,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:06:37,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:06:37,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:06:37,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:37,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:06:37,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:06:37,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:06:37,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:06:37,384 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-24 17:06:37,385 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [266390990] [2020-09-24 17:06:37,385 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:06:37,385 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 17:06:37,386 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671607938] [2020-09-24 17:06:37,386 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 17:06:37,387 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:06:37,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 17:06:37,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:06:37,387 INFO L87 Difference]: Start difference. First operand 134 states and 166 transitions. Second operand 3 states. [2020-09-24 17:06:37,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:06:37,450 INFO L93 Difference]: Finished difference Result 248 states and 312 transitions. [2020-09-24 17:06:37,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 17:06:37,450 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2020-09-24 17:06:37,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:06:37,452 INFO L225 Difference]: With dead ends: 248 [2020-09-24 17:06:37,452 INFO L226 Difference]: Without dead ends: 103 [2020-09-24 17:06:37,454 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:06:37,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-09-24 17:06:37,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 101. [2020-09-24 17:06:37,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-09-24 17:06:37,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 117 transitions. [2020-09-24 17:06:37,472 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 117 transitions. Word has length 34 [2020-09-24 17:06:37,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:06:37,477 INFO L479 AbstractCegarLoop]: Abstraction has 101 states and 117 transitions. [2020-09-24 17:06:37,477 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 17:06:37,477 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 117 transitions. [2020-09-24 17:06:37,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-09-24 17:06:37,479 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:06:37,480 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 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] [2020-09-24 17:06:37,480 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 17:06:37,480 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:06:37,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:06:37,481 INFO L82 PathProgramCache]: Analyzing trace with hash 340924863, now seen corresponding path program 1 times [2020-09-24 17:06:37,481 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:06:37,481 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [461347472] [2020-09-24 17:06:37,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:06:37,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:37,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:37,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:37,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:37,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:37,635 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:37,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-24 17:06:37,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 17:06:37,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-09-24 17:06:37,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:37,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:06:37,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-09-24 17:06:37,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 17:06:37,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:06:37,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:06:37,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:37,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:37,666 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:37,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:06:37,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:06:37,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:06:37,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:37,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:06:37,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:06:37,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:06:37,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:06:37,674 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-24 17:06:37,675 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [461347472] [2020-09-24 17:06:37,676 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:06:37,676 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 17:06:37,676 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521997336] [2020-09-24 17:06:37,677 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 17:06:37,677 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:06:37,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 17:06:37,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:06:37,678 INFO L87 Difference]: Start difference. First operand 101 states and 117 transitions. Second operand 3 states. [2020-09-24 17:06:37,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:06:37,729 INFO L93 Difference]: Finished difference Result 154 states and 179 transitions. [2020-09-24 17:06:37,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 17:06:37,729 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 50 [2020-09-24 17:06:37,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:06:37,731 INFO L225 Difference]: With dead ends: 154 [2020-09-24 17:06:37,731 INFO L226 Difference]: Without dead ends: 111 [2020-09-24 17:06:37,732 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:06:37,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-09-24 17:06:37,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2020-09-24 17:06:37,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-09-24 17:06:37,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 127 transitions. [2020-09-24 17:06:37,743 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 127 transitions. Word has length 50 [2020-09-24 17:06:37,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:06:37,744 INFO L479 AbstractCegarLoop]: Abstraction has 111 states and 127 transitions. [2020-09-24 17:06:37,744 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 17:06:37,744 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 127 transitions. [2020-09-24 17:06:37,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-24 17:06:37,746 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:06:37,747 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:06:37,747 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 17:06:37,747 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:06:37,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:06:37,747 INFO L82 PathProgramCache]: Analyzing trace with hash -1371254884, now seen corresponding path program 1 times [2020-09-24 17:06:37,748 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:06:37,748 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [527483528] [2020-09-24 17:06:37,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:06:37,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:37,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:37,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:37,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:37,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:37,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:37,958 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:37,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-24 17:06:37,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 17:06:37,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-09-24 17:06:37,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:37,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:06:37,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 57 [2020-09-24 17:06:37,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 17:06:37,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:06:37,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:06:37,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:37,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:37,986 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:37,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:06:37,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:06:37,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:06:37,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:37,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:06:37,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:06:37,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:06:37,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:06:37,992 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-09-24 17:06:37,992 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [527483528] [2020-09-24 17:06:37,992 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:06:37,993 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 17:06:37,993 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927669386] [2020-09-24 17:06:37,993 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 17:06:37,994 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:06:37,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 17:06:37,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:06:37,994 INFO L87 Difference]: Start difference. First operand 111 states and 127 transitions. Second operand 3 states. [2020-09-24 17:06:38,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:06:38,033 INFO L93 Difference]: Finished difference Result 184 states and 210 transitions. [2020-09-24 17:06:38,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 17:06:38,033 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2020-09-24 17:06:38,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:06:38,035 INFO L225 Difference]: With dead ends: 184 [2020-09-24 17:06:38,035 INFO L226 Difference]: Without dead ends: 112 [2020-09-24 17:06:38,036 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:06:38,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-09-24 17:06:38,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2020-09-24 17:06:38,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-09-24 17:06:38,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 126 transitions. [2020-09-24 17:06:38,046 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 126 transitions. Word has length 61 [2020-09-24 17:06:38,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:06:38,046 INFO L479 AbstractCegarLoop]: Abstraction has 112 states and 126 transitions. [2020-09-24 17:06:38,046 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 17:06:38,047 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 126 transitions. [2020-09-24 17:06:38,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-24 17:06:38,049 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:06:38,049 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 3, 3, 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] [2020-09-24 17:06:38,050 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 17:06:38,050 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:06:38,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:06:38,050 INFO L82 PathProgramCache]: Analyzing trace with hash 1988721297, now seen corresponding path program 1 times [2020-09-24 17:06:38,051 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:06:38,051 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [762983846] [2020-09-24 17:06:38,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:06:38,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:38,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:38,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:38,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:38,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:38,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:38,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:38,267 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:38,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-24 17:06:38,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 17:06:38,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-09-24 17:06:38,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:38,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:06:38,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 17:06:38,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 17:06:38,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:06:38,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:06:38,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:06:38,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:06:38,315 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:06:38,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:06:38,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:06:38,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 17:06:38,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:06:38,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:06:38,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:06:38,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:06:38,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:06:38,331 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-09-24 17:06:38,331 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [762983846] [2020-09-24 17:06:38,332 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:06:38,332 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 17:06:38,332 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095939707] [2020-09-24 17:06:38,334 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 17:06:38,334 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:06:38,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 17:06:38,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:06:38,335 INFO L87 Difference]: Start difference. First operand 112 states and 126 transitions. Second operand 3 states. [2020-09-24 17:06:38,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:06:38,358 INFO L93 Difference]: Finished difference Result 166 states and 183 transitions. [2020-09-24 17:06:38,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 17:06:38,359 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2020-09-24 17:06:38,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:06:38,359 INFO L225 Difference]: With dead ends: 166 [2020-09-24 17:06:38,360 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 17:06:38,362 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:06:38,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 17:06:38,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 17:06:38,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 17:06:38,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 17:06:38,368 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 69 [2020-09-24 17:06:38,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:06:38,368 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 17:06:38,368 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 17:06:38,369 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 17:06:38,369 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 17:06:38,369 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 17:06:38,380 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 17:06:38,624 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-24 17:06:38,625 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-24 17:06:38,625 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-24 17:06:38,625 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-24 17:06:38,625 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-24 17:06:38,625 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-24 17:06:38,626 INFO L268 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-09-24 17:06:38,626 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 8 140) no Hoare annotation was computed. [2020-09-24 17:06:38,626 INFO L268 CegarLoopResult]: For program point L77-1(lines 53 106) no Hoare annotation was computed. [2020-09-24 17:06:38,626 INFO L268 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2020-09-24 17:06:38,626 INFO L268 CegarLoopResult]: For program point L69(lines 69 73) no Hoare annotation was computed. [2020-09-24 17:06:38,626 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-09-24 17:06:38,626 INFO L268 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-09-24 17:06:38,626 INFO L268 CegarLoopResult]: For program point L45(lines 45 110) no Hoare annotation was computed. [2020-09-24 17:06:38,627 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-09-24 17:06:38,627 INFO L271 CegarLoopResult]: At program point L136(lines 8 140) the Hoare annotation is: true [2020-09-24 17:06:38,627 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-09-24 17:06:38,627 INFO L268 CegarLoopResult]: For program point L95(lines 95 97) no Hoare annotation was computed. [2020-09-24 17:06:38,627 INFO L268 CegarLoopResult]: For program point L29(lines 29 124) no Hoare annotation was computed. [2020-09-24 17:06:38,627 INFO L264 CegarLoopResult]: At program point L46(lines 45 110) the Hoare annotation is: (let ((.cse0 (= main_~s__state~0 8640))) (or (and .cse0 (<= main_~blastFlag~0 2)) (and (<= main_~blastFlag~0 3) .cse0 (not (= main_~s__hit~0 0))) (and (<= 8640 main_~s__state~0) (<= main_~blastFlag~0 0)))) [2020-09-24 17:06:38,628 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 8 140) no Hoare annotation was computed. [2020-09-24 17:06:38,628 INFO L264 CegarLoopResult]: At program point L96(lines 8 140) the Hoare annotation is: false [2020-09-24 17:06:38,628 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 138) no Hoare annotation was computed. [2020-09-24 17:06:38,628 INFO L268 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-09-24 17:06:38,629 INFO L264 CegarLoopResult]: At program point L30(lines 29 124) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-09-24 17:06:38,629 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 8 140) the Hoare annotation is: true [2020-09-24 17:06:38,629 INFO L268 CegarLoopResult]: For program point L88-1(lines 53 106) no Hoare annotation was computed. [2020-09-24 17:06:38,629 INFO L268 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed. [2020-09-24 17:06:38,629 INFO L268 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-09-24 17:06:38,629 INFO L268 CegarLoopResult]: For program point L89(line 89) no Hoare annotation was computed. [2020-09-24 17:06:38,631 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-24 17:06:38,631 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-09-24 17:06:38,631 INFO L268 CegarLoopResult]: For program point L24(lines 24 127) no Hoare annotation was computed. [2020-09-24 17:06:38,631 INFO L268 CegarLoopResult]: For program point L57-1(lines 53 106) no Hoare annotation was computed. [2020-09-24 17:06:38,632 INFO L268 CegarLoopResult]: For program point L49(lines 49 108) no Hoare annotation was computed. [2020-09-24 17:06:38,632 INFO L264 CegarLoopResult]: At program point L99(lines 17 134) the Hoare annotation is: (or (<= main_~blastFlag~0 2) (and (<= main_~blastFlag~0 3) (= main_~s__state~0 8640) (not (= main_~s__hit~0 0)))) [2020-09-24 17:06:38,632 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-09-24 17:06:38,632 INFO L264 CegarLoopResult]: At program point L25(lines 24 127) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-09-24 17:06:38,632 INFO L268 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-09-24 17:06:38,633 INFO L264 CegarLoopResult]: At program point L50(lines 49 108) the Hoare annotation is: (and (<= main_~blastFlag~0 2) (<= 8656 main_~s__state~0)) [2020-09-24 17:06:38,633 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-09-24 17:06:38,633 INFO L268 CegarLoopResult]: For program point L92-1(lines 53 106) no Hoare annotation was computed. [2020-09-24 17:06:38,633 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-24 17:06:38,633 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-09-24 17:06:38,633 INFO L268 CegarLoopResult]: For program point L10-1(line 10) no Hoare annotation was computed. [2020-09-24 17:06:38,633 INFO L268 CegarLoopResult]: For program point L10-2(line 10) no Hoare annotation was computed. [2020-09-24 17:06:38,633 INFO L268 CegarLoopResult]: For program point L68(line 68) no Hoare annotation was computed. [2020-09-24 17:06:38,634 INFO L268 CegarLoopResult]: For program point L68-1(line 68) no Hoare annotation was computed. [2020-09-24 17:06:38,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 05:06:38 BoogieIcfgContainer [2020-09-24 17:06:38,670 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 17:06:38,680 INFO L168 Benchmark]: Toolchain (without parser) took 3794.53 ms. Allocated memory was 142.1 MB in the beginning and 241.7 MB in the end (delta: 99.6 MB). Free memory was 105.6 MB in the beginning and 181.3 MB in the end (delta: -75.7 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. [2020-09-24 17:06:38,681 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 142.1 MB. Free memory was 123.6 MB in the beginning and 123.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-09-24 17:06:38,682 INFO L168 Benchmark]: CACSL2BoogieTranslator took 339.50 ms. Allocated memory is still 142.1 MB. Free memory was 105.0 MB in the beginning and 94.3 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2020-09-24 17:06:38,683 INFO L168 Benchmark]: Boogie Preprocessor took 127.64 ms. Allocated memory was 142.1 MB in the beginning and 203.9 MB in the end (delta: 61.9 MB). Free memory was 94.3 MB in the beginning and 182.1 MB in the end (delta: -87.8 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. [2020-09-24 17:06:38,684 INFO L168 Benchmark]: RCFGBuilder took 383.50 ms. Allocated memory is still 203.9 MB. Free memory was 182.1 MB in the beginning and 166.3 MB in the end (delta: 15.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 7.1 GB. [2020-09-24 17:06:38,688 INFO L168 Benchmark]: TraceAbstraction took 2931.65 ms. Allocated memory was 203.9 MB in the beginning and 241.7 MB in the end (delta: 37.7 MB). Free memory was 165.7 MB in the beginning and 181.3 MB in the end (delta: -15.5 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2020-09-24 17:06:38,701 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 142.1 MB. Free memory was 123.6 MB in the beginning and 123.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 339.50 ms. Allocated memory is still 142.1 MB. Free memory was 105.0 MB in the beginning and 94.3 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 127.64 ms. Allocated memory was 142.1 MB in the beginning and 203.9 MB in the end (delta: 61.9 MB). Free memory was 94.3 MB in the beginning and 182.1 MB in the end (delta: -87.8 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 383.50 ms. Allocated memory is still 203.9 MB. Free memory was 182.1 MB in the beginning and 166.3 MB in the end (delta: 15.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2931.65 ms. Allocated memory was 203.9 MB in the beginning and 241.7 MB in the end (delta: 37.7 MB). Free memory was 165.7 MB in the beginning and 181.3 MB in the end (delta: -15.5 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 138]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: blastFlag <= 2 && 8656 <= s__state - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: blastFlag <= 2 || ((blastFlag <= 3 && s__state == 8640) && !(s__hit == 0)) - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 45]: Loop Invariant Derived loop invariant: ((s__state == 8640 && blastFlag <= 2) || ((blastFlag <= 3 && s__state == 8640) && !(s__hit == 0))) || (8640 <= s__state && blastFlag <= 0) - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.5s, OverallIterations: 8, TraceHistogramMax: 6, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 404 SDtfs, 134 SDslu, 259 SDs, 0 SdLazy, 141 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=134occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 8 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 11 PreInvPairs, 33 NumberOfFragments, 60 HoareAnnotationTreeSize, 11 FomulaSimplifications, 172 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 11 FomulaSimplificationsInter, 36 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 303 NumberOfCodeBlocks, 303 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 295 ConstructedInterpolants, 0 QuantifiedInterpolants, 20053 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 176/176 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...