/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 --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 interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/test25-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:23:50,260 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:23:50,266 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:23:50,311 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:23:50,313 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:23:50,322 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:23:50,324 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:23:50,328 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:23:50,331 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:23:50,336 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:23:50,337 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:23:50,339 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:23:50,339 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:23:50,342 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:23:50,345 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:23:50,347 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:23:50,349 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:23:50,351 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:23:50,353 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:23:50,363 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:23:50,366 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:23:50,367 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:23:50,368 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:23:50,369 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:23:50,387 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:23:50,387 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:23:50,387 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:23:50,388 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:23:50,389 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:23:50,392 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-09-21 11:23:50,404 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:23:50,405 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:23:50,406 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:23:50,408 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 [2020-09-21 11:23:50,455 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:23:50,455 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:23:50,458 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:23:50,458 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:23:50,458 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:23:50,459 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:23:50,459 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:23:50,459 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:23:50,460 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:23:50,460 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:23:50,461 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:23:50,461 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:23:50,461 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:23:50,462 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:23:50,462 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:23:50,462 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:23:50,463 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:23:50,463 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:23:50,463 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:23:50,463 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:23:50,464 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:23:50,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:23:50,464 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:23:50,464 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:23:50,465 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:23:50,465 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:23:50,465 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:23:50,465 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:23:50,465 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:23:50,466 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.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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-21 11:23:50,940 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:23:50,968 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:23:50,973 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:23:50,975 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:23:50,975 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:23:50,977 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test25-2.c [2020-09-21 11:23:51,074 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9a19486b0/5490a1b861f84c4397a523893de95abc/FLAG9450de354 [2020-09-21 11:23:51,595 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:23:51,596 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/test25-2.c [2020-09-21 11:23:51,604 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9a19486b0/5490a1b861f84c4397a523893de95abc/FLAG9450de354 [2020-09-21 11:23:51,946 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9a19486b0/5490a1b861f84c4397a523893de95abc [2020-09-21 11:23:51,960 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:23:51,966 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:23:51,967 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:23:51,968 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:23:51,972 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:23:51,973 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:23:51" (1/1) ... [2020-09-21 11:23:51,977 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3330734f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:23:51, skipping insertion in model container [2020-09-21 11:23:51,978 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:23:51" (1/1) ... [2020-09-21 11:23:51,987 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:23:52,011 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:23:52,276 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:23:52,288 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:23:52,330 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:23:52,355 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:23:52,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:23:52 WrapperNode [2020-09-21 11:23:52,357 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:23:52,357 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:23:52,358 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:23:52,358 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:23:52,483 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:23:52" (1/1) ... [2020-09-21 11:23:52,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:23:52" (1/1) ... [2020-09-21 11:23:52,515 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:23:52" (1/1) ... [2020-09-21 11:23:52,515 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:23:52" (1/1) ... [2020-09-21 11:23:52,536 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:23:52" (1/1) ... [2020-09-21 11:23:52,542 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:23:52" (1/1) ... [2020-09-21 11:23:52,550 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:23:52" (1/1) ... [2020-09-21 11:23:52,559 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:23:52,560 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:23:52,560 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:23:52,560 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:23:52,562 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:23:52" (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 [2020-09-21 11:23:52,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:23:52,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:23:52,635 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-09-21 11:23:52,635 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:23:52,635 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:23:52,635 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:23:52,636 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-09-21 11:23:52,636 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 11:23:52,636 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 11:23:52,636 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:23:52,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 11:23:52,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 11:23:52,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 11:23:52,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 11:23:52,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:23:52,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:23:52,956 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:23:52,956 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-09-21 11:23:52,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:23:52 BoogieIcfgContainer [2020-09-21 11:23:52,961 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:23:52,963 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:23:52,963 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:23:52,966 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:23:52,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:23:51" (1/3) ... [2020-09-21 11:23:52,968 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e016fee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:23:52, skipping insertion in model container [2020-09-21 11:23:52,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:23:52" (2/3) ... [2020-09-21 11:23:52,968 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e016fee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:23:52, skipping insertion in model container [2020-09-21 11:23:52,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:23:52" (3/3) ... [2020-09-21 11:23:52,971 INFO L109 eAbstractionObserver]: Analyzing ICFG test25-2.c [2020-09-21 11:23:52,983 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:23:53,005 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:23:53,046 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:23:53,072 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:23:53,073 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:23:53,073 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:23:53,073 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:23:53,073 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:23:53,073 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:23:53,073 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:23:53,074 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:23:53,096 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-09-21 11:23:53,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-21 11:23:53,104 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:23:53,105 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:23:53,106 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:23:53,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:23:53,112 INFO L82 PathProgramCache]: Analyzing trace with hash -899836778, now seen corresponding path program 1 times [2020-09-21 11:23:53,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:23:53,122 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [447543008] [2020-09-21 11:23:53,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:23:53,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:53,274 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:53,275 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:53,275 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:53,275 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:53,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:23:53,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:53,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 11:23:53,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:53,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:23:53,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:23:53,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:23:53,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:23:53,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:23:53,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:53,351 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:53,351 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:53,352 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:53,352 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:53,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:23:53,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:53,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:23:53,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:53,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:23:53,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:53,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:23:53,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:23:53,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 11:23:53,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:53,380 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:53,380 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:53,381 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:53,384 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:53,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:23:53,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:53,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:23:53,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:53,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:23:53,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:23:53,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:23:53,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:23:53,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:23:53,412 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [447543008] [2020-09-21 11:23:53,416 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:23:53,417 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 11:23:53,420 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663528720] [2020-09-21 11:23:53,428 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 11:23:53,429 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:23:53,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 11:23:53,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:23:53,451 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 3 states. [2020-09-21 11:23:53,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:23:53,560 INFO L93 Difference]: Finished difference Result 42 states and 52 transitions. [2020-09-21 11:23:53,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 11:23:53,562 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-09-21 11:23:53,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:23:53,575 INFO L225 Difference]: With dead ends: 42 [2020-09-21 11:23:53,575 INFO L226 Difference]: Without dead ends: 20 [2020-09-21 11:23:53,580 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:23:53,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-09-21 11:23:53,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-09-21 11:23:53,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-09-21 11:23:53,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2020-09-21 11:23:53,623 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 17 [2020-09-21 11:23:53,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:23:53,624 INFO L479 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2020-09-21 11:23:53,624 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 11:23:53,624 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2020-09-21 11:23:53,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-21 11:23:53,625 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:23:53,626 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:23:53,626 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:23:53,626 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:23:53,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:23:53,627 INFO L82 PathProgramCache]: Analyzing trace with hash -1137678901, now seen corresponding path program 1 times [2020-09-21 11:23:53,627 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:23:53,628 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1486449493] [2020-09-21 11:23:53,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:23:53,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:53,683 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:53,683 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:53,684 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:53,684 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:53,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-21 11:23:53,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:53,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 11:23:53,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:53,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:23:53,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 11:23:53,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:23:53,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:23:53,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:23:53,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:53,742 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:53,744 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:53,744 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:53,744 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:53,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:23:53,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:53,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:23:53,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:53,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:23:53,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:53,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:23:53,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:23:53,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-21 11:23:53,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:53,757 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:53,757 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:53,758 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:53,758 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:53,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:23:53,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:53,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:23:53,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:53,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:23:53,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:23:53,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:23:53,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:23:53,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:23:53,768 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1486449493] [2020-09-21 11:23:53,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:23:53,768 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:23:53,768 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254951333] [2020-09-21 11:23:53,770 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:23:53,771 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:23:53,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:23:53,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:23:53,771 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 4 states. [2020-09-21 11:23:53,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:23:53,835 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2020-09-21 11:23:53,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-21 11:23:53,836 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-09-21 11:23:53,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:23:53,837 INFO L225 Difference]: With dead ends: 34 [2020-09-21 11:23:53,837 INFO L226 Difference]: Without dead ends: 22 [2020-09-21 11:23:53,838 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:23:53,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-09-21 11:23:53,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2020-09-21 11:23:53,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-09-21 11:23:53,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2020-09-21 11:23:53,845 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 18 [2020-09-21 11:23:53,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:23:53,845 INFO L479 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2020-09-21 11:23:53,846 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:23:53,846 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-09-21 11:23:53,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-09-21 11:23:53,847 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:23:53,847 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] [2020-09-21 11:23:53,847 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:23:53,847 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:23:53,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:23:53,848 INFO L82 PathProgramCache]: Analyzing trace with hash 278779309, now seen corresponding path program 1 times [2020-09-21 11:23:53,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:23:53,848 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1358442286] [2020-09-21 11:23:53,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:23:53,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:53,889 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:53,889 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:53,890 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:53,890 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:53,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-21 11:23:53,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:53,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-21 11:23:53,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:53,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:23:53,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 11:23:53,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:23:53,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:23:53,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:23:53,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:53,947 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:53,947 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:53,947 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:53,948 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:53,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:23:53,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:53,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:23:53,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:53,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:23:53,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:53,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:23:53,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:23:53,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-21 11:23:53,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:53,959 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:53,959 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:53,959 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:53,960 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:53,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:23:53,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:53,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:23:53,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:53,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:23:53,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:23:53,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:23:53,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:23:53,969 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:23:53,969 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1358442286] [2020-09-21 11:23:53,969 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:23:53,970 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 11:23:53,970 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025629749] [2020-09-21 11:23:53,971 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:23:53,971 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:23:53,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:23:53,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:23:53,972 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 5 states. [2020-09-21 11:23:54,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:23:54,040 INFO L93 Difference]: Finished difference Result 36 states and 38 transitions. [2020-09-21 11:23:54,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:23:54,041 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2020-09-21 11:23:54,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:23:54,042 INFO L225 Difference]: With dead ends: 36 [2020-09-21 11:23:54,042 INFO L226 Difference]: Without dead ends: 24 [2020-09-21 11:23:54,043 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:23:54,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-09-21 11:23:54,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2020-09-21 11:23:54,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-09-21 11:23:54,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2020-09-21 11:23:54,050 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 20 [2020-09-21 11:23:54,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:23:54,050 INFO L479 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2020-09-21 11:23:54,050 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:23:54,051 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2020-09-21 11:23:54,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-21 11:23:54,052 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:23:54,052 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] [2020-09-21 11:23:54,052 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:23:54,052 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:23:54,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:23:54,068 INFO L82 PathProgramCache]: Analyzing trace with hash -9513713, now seen corresponding path program 2 times [2020-09-21 11:23:54,068 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:23:54,069 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [287793584] [2020-09-21 11:23:54,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:23:54,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:54,186 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:54,186 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:54,187 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:54,187 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:54,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:23:54,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:54,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-21 11:23:54,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:54,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:23:54,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 11:23:54,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:23:54,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:54,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:23:54,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:54,280 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:54,280 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:54,281 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:54,283 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:54,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:23:54,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:54,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:23:54,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:54,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:23:54,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:54,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:23:54,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:23:54,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-21 11:23:54,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:54,296 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:54,296 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:54,296 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:54,297 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:54,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:23:54,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:54,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:23:54,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:54,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:23:54,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:23:54,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:23:54,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:54,320 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:23:54,321 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [287793584] [2020-09-21 11:23:54,321 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:23:54,322 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-21 11:23:54,322 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410483220] [2020-09-21 11:23:54,323 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 11:23:54,325 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:23:54,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 11:23:54,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:23:54,326 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 6 states. [2020-09-21 11:23:54,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:23:54,430 INFO L93 Difference]: Finished difference Result 38 states and 40 transitions. [2020-09-21 11:23:54,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-21 11:23:54,431 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2020-09-21 11:23:54,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:23:54,432 INFO L225 Difference]: With dead ends: 38 [2020-09-21 11:23:54,432 INFO L226 Difference]: Without dead ends: 26 [2020-09-21 11:23:54,432 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:23:54,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-09-21 11:23:54,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2020-09-21 11:23:54,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-09-21 11:23:54,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2020-09-21 11:23:54,442 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 22 [2020-09-21 11:23:54,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:23:54,442 INFO L479 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2020-09-21 11:23:54,443 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 11:23:54,443 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2020-09-21 11:23:54,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-09-21 11:23:54,445 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:23:54,445 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:23:54,446 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:23:54,446 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:23:54,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:23:54,446 INFO L82 PathProgramCache]: Analyzing trace with hash 2113766385, now seen corresponding path program 3 times [2020-09-21 11:23:54,447 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:23:54,447 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [324600496] [2020-09-21 11:23:54,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:23:54,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:54,504 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:54,504 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:54,504 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:54,505 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:54,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:23:54,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:54,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-21 11:23:54,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:54,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:23:54,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 11:23:54,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 11:23:54,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:54,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:23:54,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:54,569 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:54,569 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:54,569 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:54,569 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:54,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:23:54,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:54,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:23:54,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:54,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:23:54,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:54,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:23:54,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:54,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 11:23:54,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:54,577 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:54,578 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:54,578 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:54,578 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:54,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:23:54,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:54,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:23:54,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:54,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:23:54,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:23:54,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:23:54,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:23:54,584 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:23:54,585 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [324600496] [2020-09-21 11:23:54,585 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:23:54,585 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:23:54,586 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615013925] [2020-09-21 11:23:54,586 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:23:54,586 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:23:54,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:23:54,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:23:54,587 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 7 states. [2020-09-21 11:23:54,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:23:54,662 INFO L93 Difference]: Finished difference Result 40 states and 42 transitions. [2020-09-21 11:23:54,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 11:23:54,662 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2020-09-21 11:23:54,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:23:54,663 INFO L225 Difference]: With dead ends: 40 [2020-09-21 11:23:54,663 INFO L226 Difference]: Without dead ends: 28 [2020-09-21 11:23:54,664 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:23:54,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-09-21 11:23:54,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2020-09-21 11:23:54,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-09-21 11:23:54,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2020-09-21 11:23:54,671 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 24 [2020-09-21 11:23:54,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:23:54,671 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2020-09-21 11:23:54,671 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:23:54,671 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2020-09-21 11:23:54,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-09-21 11:23:54,672 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:23:54,672 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:23:54,673 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:23:54,673 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:23:54,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:23:54,673 INFO L82 PathProgramCache]: Analyzing trace with hash -1818492333, now seen corresponding path program 4 times [2020-09-21 11:23:54,674 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:23:54,674 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [109441878] [2020-09-21 11:23:54,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:23:54,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:54,732 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:54,732 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:54,733 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:54,733 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:54,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-21 11:23:54,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:54,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-21 11:23:54,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:54,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:23:54,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 11:23:54,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-21 11:23:54,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:54,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:23:54,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:54,830 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:54,831 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:54,831 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:54,831 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:54,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:23:54,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:54,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:23:54,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:54,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:23:54,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:54,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:23:54,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:54,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-21 11:23:54,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:54,839 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:54,840 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:54,840 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:54,840 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:54,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:23:54,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:54,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:23:54,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:54,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:23:54,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:23:54,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:23:54,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:54,846 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:23:54,847 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [109441878] [2020-09-21 11:23:54,848 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:23:54,848 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-21 11:23:54,848 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847078685] [2020-09-21 11:23:54,849 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:23:54,849 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:23:54,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:23:54,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:23:54,850 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 8 states. [2020-09-21 11:23:54,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:23:54,937 INFO L93 Difference]: Finished difference Result 42 states and 44 transitions. [2020-09-21 11:23:54,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-21 11:23:54,938 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 26 [2020-09-21 11:23:54,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:23:54,939 INFO L225 Difference]: With dead ends: 42 [2020-09-21 11:23:54,939 INFO L226 Difference]: Without dead ends: 30 [2020-09-21 11:23:54,940 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:23:54,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-21 11:23:54,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2020-09-21 11:23:54,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-09-21 11:23:54,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2020-09-21 11:23:54,959 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 26 [2020-09-21 11:23:54,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:23:54,960 INFO L479 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2020-09-21 11:23:54,961 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:23:54,962 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2020-09-21 11:23:54,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-09-21 11:23:54,965 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:23:54,969 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:23:54,970 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:23:54,971 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:23:54,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:23:54,971 INFO L82 PathProgramCache]: Analyzing trace with hash -1147899851, now seen corresponding path program 5 times [2020-09-21 11:23:54,972 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:23:54,972 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1932595493] [2020-09-21 11:23:54,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:23:55,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:55,080 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:55,080 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:55,080 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:55,081 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:55,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-21 11:23:55,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:55,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-21 11:23:55,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:55,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:23:55,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 11:23:55,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-21 11:23:55,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 11:23:55,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:23:55,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:55,187 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:55,187 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:55,188 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:55,188 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:55,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:23:55,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:55,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:23:55,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:55,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:23:55,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:55,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:23:55,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:55,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-21 11:23:55,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:55,201 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:55,201 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:55,201 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:55,204 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:55,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:23:55,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:55,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:23:55,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:55,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:23:55,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:23:55,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:23:55,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:23:55,211 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:23:55,212 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1932595493] [2020-09-21 11:23:55,212 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:23:55,212 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-21 11:23:55,212 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532195938] [2020-09-21 11:23:55,214 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:23:55,214 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:23:55,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:23:55,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:23:55,215 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 9 states. [2020-09-21 11:23:55,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:23:55,323 INFO L93 Difference]: Finished difference Result 44 states and 46 transitions. [2020-09-21 11:23:55,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:23:55,324 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28 [2020-09-21 11:23:55,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:23:55,324 INFO L225 Difference]: With dead ends: 44 [2020-09-21 11:23:55,325 INFO L226 Difference]: Without dead ends: 32 [2020-09-21 11:23:55,326 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:23:55,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-09-21 11:23:55,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2020-09-21 11:23:55,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-09-21 11:23:55,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2020-09-21 11:23:55,342 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 28 [2020-09-21 11:23:55,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:23:55,342 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2020-09-21 11:23:55,343 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:23:55,343 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2020-09-21 11:23:55,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-21 11:23:55,344 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:23:55,344 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:23:55,344 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 11:23:55,345 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:23:55,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:23:55,346 INFO L82 PathProgramCache]: Analyzing trace with hash -953619049, now seen corresponding path program 6 times [2020-09-21 11:23:55,346 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:23:55,346 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1335151737] [2020-09-21 11:23:55,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:23:55,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:55,413 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:55,413 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:55,413 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:55,413 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:55,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-21 11:23:55,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:55,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-21 11:23:55,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:55,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 11:23:55,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 11:23:55,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:23:55,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:55,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:23:55,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:55,525 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:55,525 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:55,526 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:55,526 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:55,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:23:55,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:55,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:23:55,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:55,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:23:55,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:55,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:23:55,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:55,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 11:23:55,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:55,533 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:55,533 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:55,533 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:55,533 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:55,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:23:55,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:55,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:23:55,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:55,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:23:55,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:23:55,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:23:55,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:55,538 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:23:55,539 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1335151737] [2020-09-21 11:23:55,539 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:23:55,539 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-21 11:23:55,540 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501738713] [2020-09-21 11:23:55,540 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 11:23:55,540 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:23:55,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 11:23:55,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:23:55,541 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 10 states. [2020-09-21 11:23:55,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:23:55,637 INFO L93 Difference]: Finished difference Result 46 states and 48 transitions. [2020-09-21 11:23:55,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 11:23:55,637 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 30 [2020-09-21 11:23:55,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:23:55,638 INFO L225 Difference]: With dead ends: 46 [2020-09-21 11:23:55,638 INFO L226 Difference]: Without dead ends: 34 [2020-09-21 11:23:55,639 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:23:55,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-09-21 11:23:55,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2020-09-21 11:23:55,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-09-21 11:23:55,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2020-09-21 11:23:55,645 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 30 [2020-09-21 11:23:55,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:23:55,645 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2020-09-21 11:23:55,645 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 11:23:55,645 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2020-09-21 11:23:55,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-09-21 11:23:55,646 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:23:55,646 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:23:55,646 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 11:23:55,647 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:23:55,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:23:55,647 INFO L82 PathProgramCache]: Analyzing trace with hash 1066637945, now seen corresponding path program 7 times [2020-09-21 11:23:55,647 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:23:55,648 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [398942292] [2020-09-21 11:23:55,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:23:55,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:55,701 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:55,701 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:55,702 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:55,702 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:55,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 11:23:55,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:55,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-21 11:23:55,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:55,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:23:55,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 11:23:55,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-21 11:23:55,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:55,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:23:55,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:55,815 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:55,815 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:55,815 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:55,816 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:55,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:23:55,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:55,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:23:55,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:55,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:23:55,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:55,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:23:55,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:55,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-21 11:23:55,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:55,823 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:55,823 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:55,824 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:55,824 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:55,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:23:55,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:55,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:23:55,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:55,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:23:55,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:23:55,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:23:55,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:55,829 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:23:55,830 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [398942292] [2020-09-21 11:23:55,830 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:23:55,830 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-21 11:23:55,830 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384217114] [2020-09-21 11:23:55,831 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-21 11:23:55,831 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:23:55,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-21 11:23:55,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:23:55,832 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 11 states. [2020-09-21 11:23:55,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:23:55,944 INFO L93 Difference]: Finished difference Result 48 states and 50 transitions. [2020-09-21 11:23:55,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:23:55,945 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 32 [2020-09-21 11:23:55,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:23:55,946 INFO L225 Difference]: With dead ends: 48 [2020-09-21 11:23:55,946 INFO L226 Difference]: Without dead ends: 36 [2020-09-21 11:23:55,946 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:23:55,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-09-21 11:23:55,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 35. [2020-09-21 11:23:55,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-09-21 11:23:55,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2020-09-21 11:23:55,952 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 32 [2020-09-21 11:23:55,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:23:55,952 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2020-09-21 11:23:55,953 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-21 11:23:55,953 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2020-09-21 11:23:55,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-21 11:23:55,954 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:23:55,954 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:23:55,954 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 11:23:55,954 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:23:55,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:23:55,955 INFO L82 PathProgramCache]: Analyzing trace with hash 1208391387, now seen corresponding path program 8 times [2020-09-21 11:23:55,955 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:23:55,955 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1212103229] [2020-09-21 11:23:55,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:23:55,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:56,021 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:56,022 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:56,022 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:56,022 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:56,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-21 11:23:56,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:56,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-21 11:23:56,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:56,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 11:23:56,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 11:23:56,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-21 11:23:56,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:56,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:23:56,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:56,140 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:56,140 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:56,141 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:56,141 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:56,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:23:56,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:56,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:23:56,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:56,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:23:56,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:56,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:23:56,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:56,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-21 11:23:56,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:56,147 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:56,147 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:56,148 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:56,148 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:56,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:23:56,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:56,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:23:56,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:56,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:23:56,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:23:56,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:23:56,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:56,153 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:23:56,154 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1212103229] [2020-09-21 11:23:56,154 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:23:56,154 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-21 11:23:56,154 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733817252] [2020-09-21 11:23:56,155 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-21 11:23:56,155 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:23:56,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-21 11:23:56,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:23:56,156 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand 12 states. [2020-09-21 11:23:56,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:23:56,245 INFO L93 Difference]: Finished difference Result 50 states and 52 transitions. [2020-09-21 11:23:56,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-21 11:23:56,245 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 34 [2020-09-21 11:23:56,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:23:56,246 INFO L225 Difference]: With dead ends: 50 [2020-09-21 11:23:56,246 INFO L226 Difference]: Without dead ends: 38 [2020-09-21 11:23:56,247 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:23:56,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-21 11:23:56,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2020-09-21 11:23:56,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-09-21 11:23:56,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions. [2020-09-21 11:23:56,252 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 34 [2020-09-21 11:23:56,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:23:56,253 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions. [2020-09-21 11:23:56,253 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-21 11:23:56,253 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2020-09-21 11:23:56,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-09-21 11:23:56,254 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:23:56,254 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:23:56,254 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-21 11:23:56,254 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:23:56,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:23:56,255 INFO L82 PathProgramCache]: Analyzing trace with hash -5504323, now seen corresponding path program 9 times [2020-09-21 11:23:56,255 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:23:56,255 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [478419539] [2020-09-21 11:23:56,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:23:56,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:56,337 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:56,337 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:56,337 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:56,337 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:56,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-21 11:23:56,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:56,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-21 11:23:56,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:56,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:23:56,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 11:23:56,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-21 11:23:56,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:56,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:23:56,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:56,501 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:56,502 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:56,502 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:56,502 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:56,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:23:56,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:56,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:23:56,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:56,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:23:56,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:56,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:23:56,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:56,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-21 11:23:56,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:56,509 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:56,509 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:56,509 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:56,510 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:56,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:23:56,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:56,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:23:56,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:56,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:23:56,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:23:56,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:23:56,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:23:56,516 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:23:56,517 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [478419539] [2020-09-21 11:23:56,517 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:23:56,517 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-21 11:23:56,518 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204219890] [2020-09-21 11:23:56,519 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-21 11:23:56,519 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:23:56,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-21 11:23:56,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2020-09-21 11:23:56,520 INFO L87 Difference]: Start difference. First operand 37 states and 38 transitions. Second operand 13 states. [2020-09-21 11:23:56,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:23:56,630 INFO L93 Difference]: Finished difference Result 51 states and 53 transitions. [2020-09-21 11:23:56,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-21 11:23:56,631 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 36 [2020-09-21 11:23:56,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:23:56,632 INFO L225 Difference]: With dead ends: 51 [2020-09-21 11:23:56,632 INFO L226 Difference]: Without dead ends: 39 [2020-09-21 11:23:56,632 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2020-09-21 11:23:56,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-09-21 11:23:56,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-09-21 11:23:56,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-09-21 11:23:56,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 40 transitions. [2020-09-21 11:23:56,644 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 40 transitions. Word has length 36 [2020-09-21 11:23:56,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:23:56,644 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 40 transitions. [2020-09-21 11:23:56,644 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-21 11:23:56,644 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2020-09-21 11:23:56,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-09-21 11:23:56,647 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:23:56,647 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:23:56,647 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-21 11:23:56,647 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:23:56,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:23:56,648 INFO L82 PathProgramCache]: Analyzing trace with hash 1671822879, now seen corresponding path program 10 times [2020-09-21 11:23:56,649 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:23:56,649 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1090723277] [2020-09-21 11:23:56,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:23:56,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:56,997 FATAL L256 erpolLogProxyWrapper]: Difference in size: 10 [2020-09-21 11:23:56,997 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -22 [2020-09-21 11:23:56,998 FATAL L256 erpolLogProxyWrapper]: Difference in width: 22 [2020-09-21 11:23:56,998 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:56,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-21 11:23:56,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:56,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-21 11:23:56,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:56,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:23:56,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-21 11:23:56,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:23:56,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:57,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:23:57,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:57,086 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:57,087 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:57,087 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:57,087 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:57,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:23:57,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:57,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:23:57,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:57,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:23:57,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:57,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:23:57,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:57,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-09-21 11:23:57,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:57,096 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:57,096 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:57,096 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:57,096 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:57,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:23:57,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:57,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:23:57,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:57,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:23:57,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:23:57,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:23:57,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:57,104 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-09-21 11:23:57,104 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1090723277] [2020-09-21 11:23:57,105 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:23:57,105 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-21 11:23:57,105 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640123219] [2020-09-21 11:23:57,105 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 11:23:57,106 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:23:57,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 11:23:57,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:23:57,106 INFO L87 Difference]: Start difference. First operand 39 states and 40 transitions. Second operand 6 states. [2020-09-21 11:23:57,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:23:57,174 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2020-09-21 11:23:57,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-21 11:23:57,175 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2020-09-21 11:23:57,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:23:57,176 INFO L225 Difference]: With dead ends: 49 [2020-09-21 11:23:57,176 INFO L226 Difference]: Without dead ends: 41 [2020-09-21 11:23:57,176 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:23:57,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-09-21 11:23:57,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-09-21 11:23:57,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-09-21 11:23:57,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 42 transitions. [2020-09-21 11:23:57,184 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 42 transitions. Word has length 38 [2020-09-21 11:23:57,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:23:57,184 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 42 transitions. [2020-09-21 11:23:57,185 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 11:23:57,186 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2020-09-21 11:23:57,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-21 11:23:57,187 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:23:57,187 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:23:57,187 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-21 11:23:57,188 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:23:57,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:23:57,188 INFO L82 PathProgramCache]: Analyzing trace with hash 443458522, now seen corresponding path program 1 times [2020-09-21 11:23:57,188 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:23:57,189 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1993484908] [2020-09-21 11:23:57,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:23:57,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:57,483 FATAL L256 erpolLogProxyWrapper]: Difference in size: 15 [2020-09-21 11:23:57,483 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -22 [2020-09-21 11:23:57,484 FATAL L256 erpolLogProxyWrapper]: Difference in width: 30 [2020-09-21 11:23:57,484 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:57,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-21 11:23:57,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:57,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-21 11:23:57,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:57,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:23:57,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-21 11:23:57,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:23:57,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:57,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:23:57,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:57,590 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:57,591 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:57,591 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:57,591 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:57,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:23:57,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:57,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:23:57,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:57,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:23:57,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:57,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:23:57,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:57,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:23:57,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:57,598 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:57,598 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:57,598 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:57,599 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:57,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:23:57,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:57,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:23:57,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:57,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:23:57,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:23:57,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:23:57,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:57,604 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-09-21 11:23:57,605 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1993484908] [2020-09-21 11:23:57,605 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:23:57,605 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:23:57,605 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169722954] [2020-09-21 11:23:57,606 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:23:57,606 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:23:57,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:23:57,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:23:57,607 INFO L87 Difference]: Start difference. First operand 41 states and 42 transitions. Second operand 7 states. [2020-09-21 11:23:57,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:23:57,698 INFO L93 Difference]: Finished difference Result 51 states and 52 transitions. [2020-09-21 11:23:57,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-21 11:23:57,699 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2020-09-21 11:23:57,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:23:57,700 INFO L225 Difference]: With dead ends: 51 [2020-09-21 11:23:57,700 INFO L226 Difference]: Without dead ends: 43 [2020-09-21 11:23:57,701 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:23:57,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-09-21 11:23:57,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-09-21 11:23:57,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-09-21 11:23:57,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 44 transitions. [2020-09-21 11:23:57,712 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 44 transitions. Word has length 40 [2020-09-21 11:23:57,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:23:57,714 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 44 transitions. [2020-09-21 11:23:57,714 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:23:57,714 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2020-09-21 11:23:57,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-09-21 11:23:57,715 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:23:57,715 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:23:57,715 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-21 11:23:57,715 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:23:57,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:23:57,719 INFO L82 PathProgramCache]: Analyzing trace with hash 1101317845, now seen corresponding path program 2 times [2020-09-21 11:23:57,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:23:57,719 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1659649710] [2020-09-21 11:23:57,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:23:57,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:58,039 FATAL L256 erpolLogProxyWrapper]: Difference in size: 11 [2020-09-21 11:23:58,040 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -22 [2020-09-21 11:23:58,040 FATAL L256 erpolLogProxyWrapper]: Difference in width: 22 [2020-09-21 11:23:58,040 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:58,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-21 11:23:58,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:58,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-21 11:23:58,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:58,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:23:58,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-21 11:23:58,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 11:23:58,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:58,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:23:58,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:58,147 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:58,147 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:58,147 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:58,147 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:58,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:23:58,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:58,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:23:58,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:58,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:23:58,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:58,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:23:58,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:58,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-21 11:23:58,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:58,153 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:58,153 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:58,154 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:58,154 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:58,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:23:58,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:58,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:23:58,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:58,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:23:58,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:23:58,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:23:58,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:58,159 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-09-21 11:23:58,160 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1659649710] [2020-09-21 11:23:58,160 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:23:58,160 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-21 11:23:58,160 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596584370] [2020-09-21 11:23:58,161 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:23:58,161 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:23:58,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:23:58,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:23:58,162 INFO L87 Difference]: Start difference. First operand 43 states and 44 transitions. Second operand 8 states. [2020-09-21 11:23:58,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:23:58,259 INFO L93 Difference]: Finished difference Result 53 states and 54 transitions. [2020-09-21 11:23:58,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 11:23:58,259 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2020-09-21 11:23:58,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:23:58,260 INFO L225 Difference]: With dead ends: 53 [2020-09-21 11:23:58,260 INFO L226 Difference]: Without dead ends: 45 [2020-09-21 11:23:58,261 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:23:58,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-09-21 11:23:58,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-09-21 11:23:58,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-09-21 11:23:58,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2020-09-21 11:23:58,268 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 42 [2020-09-21 11:23:58,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:23:58,268 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions. [2020-09-21 11:23:58,269 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:23:58,269 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2020-09-21 11:23:58,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-09-21 11:23:58,270 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:23:58,270 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:23:58,270 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-21 11:23:58,270 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:23:58,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:23:58,270 INFO L82 PathProgramCache]: Analyzing trace with hash 1943934736, now seen corresponding path program 3 times [2020-09-21 11:23:58,273 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:23:58,273 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1729377145] [2020-09-21 11:23:58,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:23:58,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:58,608 FATAL L256 erpolLogProxyWrapper]: Difference in size: 16 [2020-09-21 11:23:58,608 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -22 [2020-09-21 11:23:58,608 FATAL L256 erpolLogProxyWrapper]: Difference in width: 30 [2020-09-21 11:23:58,608 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:58,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-21 11:23:58,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:58,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-21 11:23:58,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:58,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:23:58,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-21 11:23:58,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-21 11:23:58,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:58,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:23:58,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:58,734 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:58,734 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:58,734 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:58,735 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:58,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:23:58,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:58,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:23:58,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:58,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:23:58,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:58,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:23:58,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:58,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 11:23:58,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:58,740 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:58,741 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:58,741 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:58,741 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:58,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:23:58,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:58,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:23:58,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:58,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:23:58,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:23:58,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:23:58,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:58,747 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-09-21 11:23:58,749 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1729377145] [2020-09-21 11:23:58,749 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:23:58,749 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-21 11:23:58,749 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709146254] [2020-09-21 11:23:58,750 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:23:58,750 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:23:58,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:23:58,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:23:58,750 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand 9 states. [2020-09-21 11:23:58,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:23:58,875 INFO L93 Difference]: Finished difference Result 55 states and 56 transitions. [2020-09-21 11:23:58,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-21 11:23:58,876 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 44 [2020-09-21 11:23:58,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:23:58,877 INFO L225 Difference]: With dead ends: 55 [2020-09-21 11:23:58,877 INFO L226 Difference]: Without dead ends: 47 [2020-09-21 11:23:58,877 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-09-21 11:23:58,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-09-21 11:23:58,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-09-21 11:23:58,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-09-21 11:23:58,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 48 transitions. [2020-09-21 11:23:58,888 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 48 transitions. Word has length 44 [2020-09-21 11:23:58,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:23:58,888 INFO L479 AbstractCegarLoop]: Abstraction has 47 states and 48 transitions. [2020-09-21 11:23:58,888 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:23:58,889 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 48 transitions. [2020-09-21 11:23:58,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-09-21 11:23:58,891 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:23:58,891 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:23:58,891 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-21 11:23:58,891 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:23:58,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:23:58,892 INFO L82 PathProgramCache]: Analyzing trace with hash -50051957, now seen corresponding path program 4 times [2020-09-21 11:23:58,892 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:23:58,892 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [896593091] [2020-09-21 11:23:58,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:23:59,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:59,173 FATAL L256 erpolLogProxyWrapper]: Difference in size: 16 [2020-09-21 11:23:59,174 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -22 [2020-09-21 11:23:59,174 FATAL L256 erpolLogProxyWrapper]: Difference in width: 30 [2020-09-21 11:23:59,174 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:59,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 11:23:59,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:59,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-21 11:23:59,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:59,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 11:23:59,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-21 11:23:59,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-21 11:23:59,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:59,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:23:59,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:59,279 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:59,280 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:59,280 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:59,280 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:59,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:23:59,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:59,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:23:59,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:59,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:23:59,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:59,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:23:59,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:23:59,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:23:59,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:59,288 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:59,288 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:59,288 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:59,288 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:59,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:23:59,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:59,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:23:59,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:59,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:23:59,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:23:59,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:23:59,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:23:59,298 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-09-21 11:23:59,299 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [896593091] [2020-09-21 11:23:59,301 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:23:59,301 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-21 11:23:59,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596656506] [2020-09-21 11:23:59,302 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 11:23:59,303 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:23:59,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 11:23:59,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:23:59,304 INFO L87 Difference]: Start difference. First operand 47 states and 48 transitions. Second operand 10 states. [2020-09-21 11:23:59,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:23:59,465 INFO L93 Difference]: Finished difference Result 57 states and 58 transitions. [2020-09-21 11:23:59,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-21 11:23:59,466 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 46 [2020-09-21 11:23:59,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:23:59,466 INFO L225 Difference]: With dead ends: 57 [2020-09-21 11:23:59,467 INFO L226 Difference]: Without dead ends: 49 [2020-09-21 11:23:59,467 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2020-09-21 11:23:59,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-09-21 11:23:59,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2020-09-21 11:23:59,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-09-21 11:23:59,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 50 transitions. [2020-09-21 11:23:59,479 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 50 transitions. Word has length 46 [2020-09-21 11:23:59,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:23:59,479 INFO L479 AbstractCegarLoop]: Abstraction has 49 states and 50 transitions. [2020-09-21 11:23:59,479 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 11:23:59,480 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 50 transitions. [2020-09-21 11:23:59,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-09-21 11:23:59,480 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:23:59,480 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:23:59,480 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-21 11:23:59,481 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:23:59,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:23:59,481 INFO L82 PathProgramCache]: Analyzing trace with hash -715849914, now seen corresponding path program 5 times [2020-09-21 11:23:59,481 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:23:59,481 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [352361381] [2020-09-21 11:23:59,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:23:59,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:59,798 FATAL L256 erpolLogProxyWrapper]: Difference in size: 11 [2020-09-21 11:23:59,799 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -22 [2020-09-21 11:23:59,799 FATAL L256 erpolLogProxyWrapper]: Difference in width: 22 [2020-09-21 11:23:59,799 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:59,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-21 11:23:59,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:59,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-21 11:23:59,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:59,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:23:59,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-21 11:23:59,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:23:59,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:59,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:23:59,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:59,924 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:59,925 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:59,925 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:59,925 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:59,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:23:59,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:59,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:23:59,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:59,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:23:59,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:59,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:23:59,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:59,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-21 11:23:59,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:59,935 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:59,936 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:59,936 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:59,936 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:59,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:23:59,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:59,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:23:59,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:59,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:23:59,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:23:59,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:23:59,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:59,943 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-09-21 11:23:59,943 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [352361381] [2020-09-21 11:23:59,943 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:23:59,943 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-21 11:23:59,944 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982797178] [2020-09-21 11:23:59,944 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-21 11:23:59,945 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:23:59,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-21 11:23:59,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:23:59,946 INFO L87 Difference]: Start difference. First operand 49 states and 50 transitions. Second operand 11 states. [2020-09-21 11:24:00,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:24:00,141 INFO L93 Difference]: Finished difference Result 59 states and 60 transitions. [2020-09-21 11:24:00,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-21 11:24:00,142 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 48 [2020-09-21 11:24:00,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:24:00,143 INFO L225 Difference]: With dead ends: 59 [2020-09-21 11:24:00,143 INFO L226 Difference]: Without dead ends: 51 [2020-09-21 11:24:00,144 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2020-09-21 11:24:00,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-09-21 11:24:00,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-09-21 11:24:00,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-09-21 11:24:00,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 52 transitions. [2020-09-21 11:24:00,150 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 52 transitions. Word has length 48 [2020-09-21 11:24:00,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:24:00,151 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 52 transitions. [2020-09-21 11:24:00,151 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-21 11:24:00,151 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 52 transitions. [2020-09-21 11:24:00,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-09-21 11:24:00,152 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:24:00,152 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 7, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:24:00,153 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-09-21 11:24:00,153 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:24:00,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:24:00,153 INFO L82 PathProgramCache]: Analyzing trace with hash -597559487, now seen corresponding path program 6 times [2020-09-21 11:24:00,154 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:24:00,154 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [809626461] [2020-09-21 11:24:00,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:24:00,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:24:00,508 FATAL L256 erpolLogProxyWrapper]: Difference in size: 11 [2020-09-21 11:24:00,508 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -22 [2020-09-21 11:24:00,508 FATAL L256 erpolLogProxyWrapper]: Difference in width: 22 [2020-09-21 11:24:00,508 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:24:00,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-09-21 11:24:00,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:24:00,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-21 11:24:00,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:24:00,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 11:24:00,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-21 11:24:00,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-21 11:24:00,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:24:00,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:24:00,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:24:00,649 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:24:00,649 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:24:00,649 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:24:00,649 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:24:00,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:24:00,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:24:00,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:24:00,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:24:00,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:24:00,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:24:00,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:24:00,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:24:00,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 11:24:00,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:24:00,656 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:24:00,656 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:24:00,657 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:24:00,657 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:24:00,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:24:00,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:24:00,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:24:00,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:24:00,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:24:00,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:24:00,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:24:00,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:24:00,665 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-09-21 11:24:00,665 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [809626461] [2020-09-21 11:24:00,665 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:24:00,666 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-21 11:24:00,666 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848469835] [2020-09-21 11:24:00,668 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-21 11:24:00,668 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:24:00,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-21 11:24:00,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:24:00,675 INFO L87 Difference]: Start difference. First operand 51 states and 52 transitions. Second operand 12 states. [2020-09-21 11:24:00,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:24:00,869 INFO L93 Difference]: Finished difference Result 61 states and 62 transitions. [2020-09-21 11:24:00,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-21 11:24:00,869 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 50 [2020-09-21 11:24:00,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:24:00,870 INFO L225 Difference]: With dead ends: 61 [2020-09-21 11:24:00,870 INFO L226 Difference]: Without dead ends: 53 [2020-09-21 11:24:00,871 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2020-09-21 11:24:00,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-09-21 11:24:00,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-09-21 11:24:00,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-09-21 11:24:00,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 54 transitions. [2020-09-21 11:24:00,880 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 54 transitions. Word has length 50 [2020-09-21 11:24:00,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:24:00,880 INFO L479 AbstractCegarLoop]: Abstraction has 53 states and 54 transitions. [2020-09-21 11:24:00,880 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-21 11:24:00,881 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 54 transitions. [2020-09-21 11:24:00,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-21 11:24:00,883 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:24:00,883 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:24:00,883 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-09-21 11:24:00,884 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:24:00,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:24:00,884 INFO L82 PathProgramCache]: Analyzing trace with hash 1410391164, now seen corresponding path program 7 times [2020-09-21 11:24:00,884 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:24:00,884 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [33205842] [2020-09-21 11:24:00,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:24:01,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:24:01,254 FATAL L256 erpolLogProxyWrapper]: Difference in size: 11 [2020-09-21 11:24:01,254 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -22 [2020-09-21 11:24:01,255 FATAL L256 erpolLogProxyWrapper]: Difference in width: 22 [2020-09-21 11:24:01,255 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:24:01,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-21 11:24:01,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:24:01,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-21 11:24:01,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:24:01,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:24:01,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-21 11:24:01,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-21 11:24:01,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:24:01,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:24:01,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:24:01,404 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:24:01,404 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:24:01,405 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:24:01,405 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:24:01,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:24:01,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:24:01,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:24:01,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:24:01,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:24:01,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:24:01,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:24:01,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:24:01,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 11:24:01,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:24:01,412 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:24:01,413 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:24:01,413 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:24:01,413 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:24:01,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:24:01,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:24:01,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:24:01,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:24:01,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:24:01,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:24:01,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:24:01,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:24:01,421 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-09-21 11:24:01,422 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [33205842] [2020-09-21 11:24:01,422 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:24:01,422 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-21 11:24:01,422 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968367034] [2020-09-21 11:24:01,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-21 11:24:01,424 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:24:01,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-21 11:24:01,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-09-21 11:24:01,425 INFO L87 Difference]: Start difference. First operand 53 states and 54 transitions. Second operand 13 states. [2020-09-21 11:24:01,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:24:01,654 INFO L93 Difference]: Finished difference Result 63 states and 64 transitions. [2020-09-21 11:24:01,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-21 11:24:01,654 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 52 [2020-09-21 11:24:01,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:24:01,655 INFO L225 Difference]: With dead ends: 63 [2020-09-21 11:24:01,655 INFO L226 Difference]: Without dead ends: 55 [2020-09-21 11:24:01,656 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=139, Invalid=281, Unknown=0, NotChecked=0, Total=420 [2020-09-21 11:24:01,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-09-21 11:24:01,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-09-21 11:24:01,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-09-21 11:24:01,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 56 transitions. [2020-09-21 11:24:01,663 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 56 transitions. Word has length 52 [2020-09-21 11:24:01,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:24:01,664 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 56 transitions. [2020-09-21 11:24:01,664 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-21 11:24:01,664 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 56 transitions. [2020-09-21 11:24:01,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-09-21 11:24:01,665 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:24:01,665 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:24:01,665 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-09-21 11:24:01,665 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:24:01,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:24:01,666 INFO L82 PathProgramCache]: Analyzing trace with hash -1684316425, now seen corresponding path program 8 times [2020-09-21 11:24:01,666 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:24:01,666 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2064685284] [2020-09-21 11:24:01,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:24:01,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:24:02,065 FATAL L256 erpolLogProxyWrapper]: Difference in size: 11 [2020-09-21 11:24:02,065 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -22 [2020-09-21 11:24:02,065 FATAL L256 erpolLogProxyWrapper]: Difference in width: 22 [2020-09-21 11:24:02,066 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:24:02,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-09-21 11:24:02,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:24:02,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-09-21 11:24:02,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:24:02,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-21 11:24:02,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-21 11:24:02,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-21 11:24:02,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:24:02,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:24:02,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:24:02,307 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:24:02,307 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:24:02,307 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:24:02,307 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:24:02,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:24:02,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:24:02,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:24:02,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:24:02,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:24:02,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:24:02,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:24:02,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:24:02,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-21 11:24:02,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:24:02,314 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:24:02,314 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:24:02,314 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:24:02,315 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:24:02,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:24:02,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:24:02,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:24:02,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:24:02,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:24:02,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:24:02,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:24:02,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:24:02,323 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-09-21 11:24:02,323 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2064685284] [2020-09-21 11:24:02,323 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:24:02,324 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-21 11:24:02,324 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339912984] [2020-09-21 11:24:02,324 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-21 11:24:02,324 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:24:02,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-21 11:24:02,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:24:02,325 INFO L87 Difference]: Start difference. First operand 55 states and 56 transitions. Second operand 14 states. [2020-09-21 11:24:02,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:24:02,599 INFO L93 Difference]: Finished difference Result 65 states and 66 transitions. [2020-09-21 11:24:02,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-21 11:24:02,600 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 54 [2020-09-21 11:24:02,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:24:02,601 INFO L225 Difference]: With dead ends: 65 [2020-09-21 11:24:02,601 INFO L226 Difference]: Without dead ends: 57 [2020-09-21 11:24:02,601 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=169, Invalid=337, Unknown=0, NotChecked=0, Total=506 [2020-09-21 11:24:02,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-09-21 11:24:02,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2020-09-21 11:24:02,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-09-21 11:24:02,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 58 transitions. [2020-09-21 11:24:02,605 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 58 transitions. Word has length 54 [2020-09-21 11:24:02,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:24:02,606 INFO L479 AbstractCegarLoop]: Abstraction has 57 states and 58 transitions. [2020-09-21 11:24:02,606 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-21 11:24:02,606 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 58 transitions. [2020-09-21 11:24:02,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-09-21 11:24:02,606 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:24:02,607 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:24:02,607 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-09-21 11:24:02,607 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:24:02,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:24:02,607 INFO L82 PathProgramCache]: Analyzing trace with hash 714026674, now seen corresponding path program 9 times [2020-09-21 11:24:02,608 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:24:02,608 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [718998537] [2020-09-21 11:24:02,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:24:02,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:24:03,040 FATAL L256 erpolLogProxyWrapper]: Difference in size: 11 [2020-09-21 11:24:03,041 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -22 [2020-09-21 11:24:03,041 FATAL L256 erpolLogProxyWrapper]: Difference in width: 22 [2020-09-21 11:24:03,041 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:24:03,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-21 11:24:03,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:24:03,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-09-21 11:24:03,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:24:03,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:24:03,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-21 11:24:03,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-21 11:24:03,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:24:03,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:24:03,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:24:03,294 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:24:03,294 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:24:03,295 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:24:03,295 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:24:03,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:24:03,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:24:03,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:24:03,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:24:03,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:24:03,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:24:03,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:24:03,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:24:03,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:24:03,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:24:03,304 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:24:03,305 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:24:03,305 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:24:03,306 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:24:03,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:24:03,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:24:03,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:24:03,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:24:03,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:24:03,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:24:03,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:24:03,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:24:03,322 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-09-21 11:24:03,323 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [718998537] [2020-09-21 11:24:03,323 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:24:03,323 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-21 11:24:03,324 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524982943] [2020-09-21 11:24:03,325 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-21 11:24:03,325 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:24:03,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-21 11:24:03,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-09-21 11:24:03,326 INFO L87 Difference]: Start difference. First operand 57 states and 58 transitions. Second operand 15 states. [2020-09-21 11:24:03,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:24:03,731 INFO L93 Difference]: Finished difference Result 67 states and 68 transitions. [2020-09-21 11:24:03,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-21 11:24:03,732 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 56 [2020-09-21 11:24:03,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:24:03,733 INFO L225 Difference]: With dead ends: 67 [2020-09-21 11:24:03,733 INFO L226 Difference]: Without dead ends: 59 [2020-09-21 11:24:03,734 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=202, Invalid=398, Unknown=0, NotChecked=0, Total=600 [2020-09-21 11:24:03,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-09-21 11:24:03,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-09-21 11:24:03,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-09-21 11:24:03,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 60 transitions. [2020-09-21 11:24:03,741 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 60 transitions. Word has length 56 [2020-09-21 11:24:03,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:24:03,741 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 60 transitions. [2020-09-21 11:24:03,742 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-21 11:24:03,742 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 60 transitions. [2020-09-21 11:24:03,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-21 11:24:03,750 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:24:03,750 INFO L422 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:24:03,751 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-09-21 11:24:03,751 INFO L427 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:24:03,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:24:03,752 INFO L82 PathProgramCache]: Analyzing trace with hash -875693139, now seen corresponding path program 10 times [2020-09-21 11:24:03,752 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:24:03,752 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [945460147] [2020-09-21 11:24:03,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:24:04,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:24:04,173 FATAL L256 erpolLogProxyWrapper]: Difference in size: 10 [2020-09-21 11:24:04,173 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -22 [2020-09-21 11:24:04,173 FATAL L256 erpolLogProxyWrapper]: Difference in width: 22 [2020-09-21 11:24:04,174 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:24:04,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-21 11:24:04,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:24:04,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-09-21 11:24:04,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:24:04,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-21 11:24:04,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-21 11:24:04,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-21 11:24:04,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:24:04,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:24:04,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:24:04,501 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:24:04,501 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:24:04,503 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:24:04,503 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:24:04,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:24:04,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:24:04,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:24:04,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:24:04,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:24:04,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:24:04,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:24:04,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:24:04,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-09-21 11:24:04,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:24:04,520 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:24:04,521 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:24:04,521 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:24:04,521 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:24:04,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:24:04,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:24:04,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 11:24:04,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:24:04,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:24:04,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:24:04,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:24:04,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:24:04,577 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-09-21 11:24:04,579 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [945460147] [2020-09-21 11:24:04,579 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:24:04,579 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-21 11:24:04,580 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429728283] [2020-09-21 11:24:04,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-21 11:24:04,581 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:24:04,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-21 11:24:04,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2020-09-21 11:24:04,581 INFO L87 Difference]: Start difference. First operand 59 states and 60 transitions. Second operand 17 states. [2020-09-21 11:24:05,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:24:05,046 INFO L93 Difference]: Finished difference Result 66 states and 68 transitions. [2020-09-21 11:24:05,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-21 11:24:05,048 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 58 [2020-09-21 11:24:05,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:24:05,050 INFO L225 Difference]: With dead ends: 66 [2020-09-21 11:24:05,050 INFO L226 Difference]: Without dead ends: 61 [2020-09-21 11:24:05,051 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2020-09-21 11:24:05,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-09-21 11:24:05,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2020-09-21 11:24:05,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-09-21 11:24:05,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 62 transitions. [2020-09-21 11:24:05,072 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 62 transitions. Word has length 58 [2020-09-21 11:24:05,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:24:05,073 INFO L479 AbstractCegarLoop]: Abstraction has 61 states and 62 transitions. [2020-09-21 11:24:05,074 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-21 11:24:05,074 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 62 transitions. [2020-09-21 11:24:05,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-09-21 11:24:05,075 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:24:05,075 INFO L422 BasicCegarLoop]: trace histogram [12, 11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:24:05,075 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-09-21 11:24:05,075 INFO L427 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:24:05,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:24:05,076 INFO L82 PathProgramCache]: Analyzing trace with hash 411923944, now seen corresponding path program 11 times [2020-09-21 11:24:05,076 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:24:05,076 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1932486192] [2020-09-21 11:24:05,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:24:05,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:24:05,455 FATAL L256 erpolLogProxyWrapper]: Difference in size: 11 [2020-09-21 11:24:05,455 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -22 [2020-09-21 11:24:05,456 FATAL L256 erpolLogProxyWrapper]: Difference in width: 22 [2020-09-21 11:24:05,456 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:24:05,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-21 11:24:05,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:24:05,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-09-21 11:24:05,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:24:05,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-21 11:24:05,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-21 11:24:05,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 11:24:05,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:24:05,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:24:05,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:24:05,694 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:24:05,694 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:24:05,695 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:24:05,695 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:24:05,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:24:05,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:24:05,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:24:05,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:24:05,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:24:05,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:24:05,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:24:05,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:24:05,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-09-21 11:24:05,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:24:05,701 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:24:05,701 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:24:05,701 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:24:05,702 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:24:05,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:24:05,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:24:05,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:24:05,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:24:05,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:24:05,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:24:05,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:24:05,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:24:05,712 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 122 proven. 10 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-09-21 11:24:05,716 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1932486192] [2020-09-21 11:24:05,716 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:24:05,717 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-21 11:24:05,718 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343573866] [2020-09-21 11:24:05,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-21 11:24:05,720 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:24:05,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-21 11:24:05,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2020-09-21 11:24:05,721 INFO L87 Difference]: Start difference. First operand 61 states and 62 transitions. Second operand 16 states. [2020-09-21 11:24:05,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:24:05,865 INFO L93 Difference]: Finished difference Result 61 states and 62 transitions. [2020-09-21 11:24:05,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-21 11:24:05,865 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 60 [2020-09-21 11:24:05,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:24:05,866 INFO L225 Difference]: With dead ends: 61 [2020-09-21 11:24:05,866 INFO L226 Difference]: Without dead ends: 0 [2020-09-21 11:24:05,867 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272 [2020-09-21 11:24:05,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-21 11:24:05,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-21 11:24:05,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-21 11:24:05,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-21 11:24:05,868 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 60 [2020-09-21 11:24:05,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:24:05,868 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-21 11:24:05,868 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-21 11:24:05,868 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-21 11:24:05,868 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-21 11:24:05,869 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-09-21 11:24:05,872 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-21 11:24:06,179 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 81 [2020-09-21 11:24:06,188 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-21 11:24:06,189 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-09-21 11:24:06,189 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-21 11:24:06,189 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-21 11:24:06,189 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-21 11:24:06,189 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-21 11:24:06,190 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-21 11:24:06,190 INFO L264 CegarLoopResult]: At program point L37-4(lines 37 39) the Hoare annotation is: (= main_~i~0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |main_~#cont~0.base|) |main_~#cont~0.offset|)) (+ (select (select |#memory_$Pointer$.offset| |main_~#cont~0.base|) |main_~#cont~0.offset|) 4))) [2020-09-21 11:24:06,190 INFO L268 CegarLoopResult]: For program point L27-2(lines 27 30) no Hoare annotation was computed. [2020-09-21 11:24:06,190 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 20 50) no Hoare annotation was computed. [2020-09-21 11:24:06,190 INFO L271 CegarLoopResult]: At program point L27-3(lines 27 30) the Hoare annotation is: true [2020-09-21 11:24:06,190 INFO L268 CegarLoopResult]: For program point L27-4(lines 21 50) no Hoare annotation was computed. [2020-09-21 11:24:06,190 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 20 50) no Hoare annotation was computed. [2020-09-21 11:24:06,191 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-09-21 11:24:06,191 INFO L268 CegarLoopResult]: For program point L40-1(lines 40 42) no Hoare annotation was computed. [2020-09-21 11:24:06,191 INFO L268 CegarLoopResult]: For program point L32(lines 32 44) no Hoare annotation was computed. [2020-09-21 11:24:06,191 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 48) no Hoare annotation was computed. [2020-09-21 11:24:06,191 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 20 50) the Hoare annotation is: (= |old(#valid)| |#valid|) [2020-09-21 11:24:06,191 INFO L264 CegarLoopResult]: At program point L41(lines 21 50) the Hoare annotation is: false [2020-09-21 11:24:06,191 INFO L268 CegarLoopResult]: For program point L37-1(lines 37 39) no Hoare annotation was computed. [2020-09-21 11:24:06,192 INFO L268 CegarLoopResult]: For program point L35(lines 35 43) no Hoare annotation was computed. [2020-09-21 11:24:06,192 INFO L264 CegarLoopResult]: At program point L37-3(lines 37 39) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |main_~#cont~0.base|) |main_~#cont~0.offset|)) (+ (select (select |#memory_$Pointer$.offset| |main_~#cont~0.base|) |main_~#cont~0.offset|) 4))) (.cse1 (select (select |#memory_int| main_~pa~0.base) main_~pa~0.offset))) (or (and (= main_~i~0 .cse0) (<= .cse1 main_~i~0)) (let ((.cse2 (+ main_~i~0 4))) (and (= .cse2 .cse0) (<= .cse2 .cse1) (<= .cse1 .cse2))) (let ((.cse3 (+ main_~i~0 9))) (and (<= .cse3 .cse1) (<= .cse1 .cse3) (= .cse3 .cse0))) (let ((.cse4 (+ main_~i~0 6))) (and (= .cse4 .cse0) (<= .cse4 .cse1) (<= .cse1 .cse4))) (let ((.cse5 (+ main_~i~0 2))) (and (<= .cse5 .cse1) (= .cse5 .cse0) (<= .cse1 .cse5))) (let ((.cse6 (+ main_~i~0 8))) (and (<= .cse6 .cse1) (= .cse6 .cse0) (<= .cse1 .cse6))) (let ((.cse7 (+ main_~i~0 1))) (and (<= .cse7 .cse1) (<= .cse1 .cse7) (= .cse7 .cse0))) (let ((.cse8 (+ main_~i~0 3))) (and (= .cse8 .cse0) (<= .cse1 .cse8) (<= .cse8 .cse1))) (let ((.cse9 (+ main_~i~0 10))) (and (= .cse9 .cse0) (<= .cse9 .cse1) (<= .cse1 .cse9))) (let ((.cse10 (+ main_~i~0 7))) (and (<= .cse10 .cse1) (= .cse10 .cse0) (<= .cse1 .cse10))) (let ((.cse11 (+ main_~i~0 5))) (and (<= .cse1 .cse11) (= .cse11 .cse0) (<= .cse11 .cse1))))) [2020-09-21 11:24:06,192 INFO L271 CegarLoopResult]: At program point checkENTRY(lines 15 18) the Hoare annotation is: true [2020-09-21 11:24:06,192 INFO L268 CegarLoopResult]: For program point checkFINAL(lines 15 18) no Hoare annotation was computed. [2020-09-21 11:24:06,192 INFO L268 CegarLoopResult]: For program point checkEXIT(lines 15 18) no Hoare annotation was computed. [2020-09-21 11:24:06,210 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-21 11:24:06,211 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-21 11:24:06,212 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-21 11:24:06,212 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-21 11:24:06,213 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-21 11:24:06,214 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-21 11:24:06,214 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-21 11:24:06,214 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-21 11:24:06,215 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-21 11:24:06,215 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-21 11:24:06,216 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-21 11:24:06,216 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-21 11:24:06,220 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-21 11:24:06,220 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-21 11:24:06,220 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-21 11:24:06,221 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-21 11:24:06,221 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-21 11:24:06,221 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-21 11:24:06,222 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-21 11:24:06,222 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-21 11:24:06,223 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-21 11:24:06,223 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-21 11:24:06,225 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,226 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,226 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,227 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,227 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,227 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,228 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,228 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,228 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,229 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,229 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,229 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,229 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,230 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,230 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,230 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,231 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,231 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,231 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,231 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,232 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,232 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,232 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,232 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,233 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,233 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,233 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,233 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,234 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,234 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,234 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,236 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,236 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,236 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,236 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,236 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,237 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,238 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,238 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,238 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,238 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,239 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,239 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,243 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,243 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,243 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,243 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,243 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,244 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,244 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,244 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,244 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,244 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,244 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,251 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-21 11:24:06,251 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-21 11:24:06,252 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-21 11:24:06,252 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-21 11:24:06,252 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-21 11:24:06,253 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-21 11:24:06,253 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-21 11:24:06,253 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-21 11:24:06,254 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-21 11:24:06,254 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-21 11:24:06,254 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-21 11:24:06,255 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-21 11:24:06,255 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-21 11:24:06,255 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-21 11:24:06,256 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-21 11:24:06,256 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-21 11:24:06,256 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-21 11:24:06,256 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-21 11:24:06,257 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-21 11:24:06,257 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-21 11:24:06,257 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-21 11:24:06,258 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-21 11:24:06,258 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,258 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,258 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,259 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,259 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,259 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,260 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,260 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,260 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,260 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,260 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,261 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,261 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,261 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,262 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,262 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,262 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,262 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,263 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,263 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,263 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,263 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,264 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,264 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,264 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,264 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,265 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,265 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,265 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,265 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,266 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,266 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,266 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,266 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,266 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,267 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,267 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,267 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,267 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,268 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,268 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,268 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,268 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,268 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,269 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,269 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,269 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,269 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,269 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,270 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,270 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,270 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,270 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,270 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:24:06 BoogieIcfgContainer [2020-09-21 11:24:06,274 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:24:06,276 INFO L168 Benchmark]: Toolchain (without parser) took 14314.89 ms. Allocated memory was 140.0 MB in the beginning and 372.8 MB in the end (delta: 232.8 MB). Free memory was 101.9 MB in the beginning and 281.0 MB in the end (delta: -179.1 MB). Peak memory consumption was 53.7 MB. Max. memory is 7.1 GB. [2020-09-21 11:24:06,277 INFO L168 Benchmark]: CDTParser took 0.83 ms. Allocated memory is still 140.0 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-21 11:24:06,278 INFO L168 Benchmark]: CACSL2BoogieTranslator took 389.69 ms. Allocated memory is still 140.0 MB. Free memory was 101.3 MB in the beginning and 90.6 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2020-09-21 11:24:06,278 INFO L168 Benchmark]: Boogie Preprocessor took 202.17 ms. Allocated memory was 140.0 MB in the beginning and 205.0 MB in the end (delta: 65.0 MB). Free memory was 90.6 MB in the beginning and 182.4 MB in the end (delta: -91.7 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. [2020-09-21 11:24:06,279 INFO L168 Benchmark]: RCFGBuilder took 401.62 ms. Allocated memory is still 205.0 MB. Free memory was 182.4 MB in the beginning and 164.5 MB in the end (delta: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 7.1 GB. [2020-09-21 11:24:06,280 INFO L168 Benchmark]: TraceAbstraction took 13311.88 ms. Allocated memory was 205.0 MB in the beginning and 372.8 MB in the end (delta: 167.8 MB). Free memory was 164.5 MB in the beginning and 281.0 MB in the end (delta: -116.5 MB). Peak memory consumption was 51.2 MB. Max. memory is 7.1 GB. [2020-09-21 11:24:06,282 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.83 ms. Allocated memory is still 140.0 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 389.69 ms. Allocated memory is still 140.0 MB. Free memory was 101.3 MB in the beginning and 90.6 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 202.17 ms. Allocated memory was 140.0 MB in the beginning and 205.0 MB in the end (delta: 65.0 MB). Free memory was 90.6 MB in the beginning and 182.4 MB in the end (delta: -91.7 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 401.62 ms. Allocated memory is still 205.0 MB. Free memory was 182.4 MB in the beginning and 164.5 MB in the end (delta: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 13311.88 ms. Allocated memory was 205.0 MB in the beginning and 372.8 MB in the end (delta: 167.8 MB). Free memory was 164.5 MB in the beginning and 281.0 MB in the end (delta: -116.5 MB). Peak memory consumption was 51.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 48]: 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: 37]: Loop Invariant [2020-09-21 11:24:06,298 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-21 11:24:06,299 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-21 11:24:06,299 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-21 11:24:06,299 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-21 11:24:06,300 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-21 11:24:06,300 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-21 11:24:06,300 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-21 11:24:06,300 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-21 11:24:06,301 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-21 11:24:06,301 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-21 11:24:06,301 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-21 11:24:06,301 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-21 11:24:06,302 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-21 11:24:06,302 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-21 11:24:06,302 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-21 11:24:06,302 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-21 11:24:06,303 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-21 11:24:06,303 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-21 11:24:06,303 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-21 11:24:06,303 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-21 11:24:06,304 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-21 11:24:06,304 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-21 11:24:06,304 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,304 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,305 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,305 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,305 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,305 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,305 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,306 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,306 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,306 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,306 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,307 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,307 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,307 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,307 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,307 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,308 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,308 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,308 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,308 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,308 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,309 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,309 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,309 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,309 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,309 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,310 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,310 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,310 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,310 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,310 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,311 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,311 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,311 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,311 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,311 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,312 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,312 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,312 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,312 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,312 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,313 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,313 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,313 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,313 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,313 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,313 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,314 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,314 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,314 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,314 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,314 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,315 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,315 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,316 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-21 11:24:06,316 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-21 11:24:06,317 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-21 11:24:06,317 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-21 11:24:06,317 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-21 11:24:06,317 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-21 11:24:06,318 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-21 11:24:06,318 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-21 11:24:06,318 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-21 11:24:06,318 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-21 11:24:06,319 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-21 11:24:06,319 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-21 11:24:06,319 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-21 11:24:06,320 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-21 11:24:06,320 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-21 11:24:06,320 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-21 11:24:06,320 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-21 11:24:06,321 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-21 11:24:06,321 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-21 11:24:06,321 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-21 11:24:06,321 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-21 11:24:06,322 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-21 11:24:06,322 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,322 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,322 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,322 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,323 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,323 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,323 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,323 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,324 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,324 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,324 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,324 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,324 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,325 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,325 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,325 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,325 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,325 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,326 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,326 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,326 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,326 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,327 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,327 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,327 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,327 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,327 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,328 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,328 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,328 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,328 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,328 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,329 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,329 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,329 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,329 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,329 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,330 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,330 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,330 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,330 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,330 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,331 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,331 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,331 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,331 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,331 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,331 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,332 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,332 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,332 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-21 11:24:06,332 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,332 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-21 11:24:06,333 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((((((((((i == unknown-#memory_int-unknown[#memory_$Pointer$[cont][cont]][#memory_$Pointer$[cont][cont] + 4] && unknown-#memory_int-unknown[pa][pa] <= i) || ((i + 4 == unknown-#memory_int-unknown[#memory_$Pointer$[cont][cont]][#memory_$Pointer$[cont][cont] + 4] && i + 4 <= unknown-#memory_int-unknown[pa][pa]) && unknown-#memory_int-unknown[pa][pa] <= i + 4)) || ((i + 9 <= unknown-#memory_int-unknown[pa][pa] && unknown-#memory_int-unknown[pa][pa] <= i + 9) && i + 9 == unknown-#memory_int-unknown[#memory_$Pointer$[cont][cont]][#memory_$Pointer$[cont][cont] + 4])) || ((i + 6 == unknown-#memory_int-unknown[#memory_$Pointer$[cont][cont]][#memory_$Pointer$[cont][cont] + 4] && i + 6 <= unknown-#memory_int-unknown[pa][pa]) && unknown-#memory_int-unknown[pa][pa] <= i + 6)) || ((i + 2 <= unknown-#memory_int-unknown[pa][pa] && i + 2 == unknown-#memory_int-unknown[#memory_$Pointer$[cont][cont]][#memory_$Pointer$[cont][cont] + 4]) && unknown-#memory_int-unknown[pa][pa] <= i + 2)) || ((i + 8 <= unknown-#memory_int-unknown[pa][pa] && i + 8 == unknown-#memory_int-unknown[#memory_$Pointer$[cont][cont]][#memory_$Pointer$[cont][cont] + 4]) && unknown-#memory_int-unknown[pa][pa] <= i + 8)) || ((i + 1 <= unknown-#memory_int-unknown[pa][pa] && unknown-#memory_int-unknown[pa][pa] <= i + 1) && i + 1 == unknown-#memory_int-unknown[#memory_$Pointer$[cont][cont]][#memory_$Pointer$[cont][cont] + 4])) || ((i + 3 == unknown-#memory_int-unknown[#memory_$Pointer$[cont][cont]][#memory_$Pointer$[cont][cont] + 4] && unknown-#memory_int-unknown[pa][pa] <= i + 3) && i + 3 <= unknown-#memory_int-unknown[pa][pa])) || ((i + 10 == unknown-#memory_int-unknown[#memory_$Pointer$[cont][cont]][#memory_$Pointer$[cont][cont] + 4] && i + 10 <= unknown-#memory_int-unknown[pa][pa]) && unknown-#memory_int-unknown[pa][pa] <= i + 10)) || ((i + 7 <= unknown-#memory_int-unknown[pa][pa] && i + 7 == unknown-#memory_int-unknown[#memory_$Pointer$[cont][cont]][#memory_$Pointer$[cont][cont] + 4]) && unknown-#memory_int-unknown[pa][pa] <= i + 7)) || ((unknown-#memory_int-unknown[pa][pa] <= i + 5 && i + 5 == unknown-#memory_int-unknown[#memory_$Pointer$[cont][cont]][#memory_$Pointer$[cont][cont] + 4]) && i + 5 <= unknown-#memory_int-unknown[pa][pa]) - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 12.8s, OverallIterations: 23, TraceHistogramMax: 12, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 377 SDtfs, 156 SDslu, 1425 SDs, 0 SdLazy, 1900 SolverSat, 73 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 352 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 238 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=61occurred in iteration=22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 23 MinimizatonAttempts, 9 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 31 PreInvPairs, 53 NumberOfFragments, 441 HoareAnnotationTreeSize, 31 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 25 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 3.5s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 875 NumberOfCodeBlocks, 875 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 852 ConstructedInterpolants, 0 QuantifiedInterpolants, 135776 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 23 InterpolantComputations, 3 PerfectInterpolantSequences, 1322/2057 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...