/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=LOWLEXORDER --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/test09.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:37:18,109 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:37:18,113 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:37:18,141 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:37:18,141 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:37:18,143 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:37:18,144 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:37:18,146 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:37:18,148 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:37:18,149 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:37:18,150 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:37:18,152 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:37:18,152 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:37:18,153 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:37:18,155 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:37:18,156 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:37:18,157 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:37:18,158 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:37:18,160 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:37:18,162 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:37:18,164 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:37:18,165 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:37:18,166 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:37:18,168 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:37:18,170 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:37:18,171 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:37:18,171 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:37:18,172 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:37:18,172 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:37:18,174 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-09-24 21:37:18,184 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:37:18,185 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:37:18,186 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:37:18,187 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 21:37:18,216 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:37:18,217 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:37:18,218 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:37:18,218 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:37:18,219 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:37:18,219 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:37:18,219 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:37:18,219 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:37:18,220 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:37:18,220 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:37:18,220 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:37:18,220 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:37:18,220 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:37:18,221 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:37:18,221 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:37:18,221 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:37:18,221 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:37:18,221 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:37:18,222 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:37:18,222 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:37:18,222 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:37:18,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:37:18,223 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:37:18,223 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:37:18,223 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:37:18,223 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:37:18,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:37:18,224 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:37:18,224 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:37:18,224 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;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;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;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;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;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;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;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;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; [2020-09-24 21:37:18,713 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:37:18,741 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:37:18,746 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:37:18,748 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:37:18,750 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:37:18,751 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test09.c [2020-09-24 21:37:18,857 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0d5809e52/051038f5f5da4f868563565e160cf4ef/FLAGef922c8aa [2020-09-24 21:37:19,412 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:37:19,413 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/test09.c [2020-09-24 21:37:19,422 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0d5809e52/051038f5f5da4f868563565e160cf4ef/FLAGef922c8aa [2020-09-24 21:37:19,759 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0d5809e52/051038f5f5da4f868563565e160cf4ef [2020-09-24 21:37:19,775 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:37:19,781 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:37:19,783 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:37:19,783 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:37:19,788 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:37:19,789 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:37:19" (1/1) ... [2020-09-24 21:37:19,794 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23a73c84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:37:19, skipping insertion in model container [2020-09-24 21:37:19,794 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:37:19" (1/1) ... [2020-09-24 21:37:19,805 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:37:19,834 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:37:20,068 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:37:20,081 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:37:20,098 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:37:20,116 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:37:20,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:37:20 WrapperNode [2020-09-24 21:37:20,117 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:37:20,118 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:37:20,118 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:37:20,118 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:37:20,212 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:37:20" (1/1) ... [2020-09-24 21:37:20,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:37:20" (1/1) ... [2020-09-24 21:37:20,223 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:37:20" (1/1) ... [2020-09-24 21:37:20,223 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:37:20" (1/1) ... [2020-09-24 21:37:20,230 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:37:20" (1/1) ... [2020-09-24 21:37:20,233 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:37:20" (1/1) ... [2020-09-24 21:37:20,234 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:37:20" (1/1) ... [2020-09-24 21:37:20,238 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:37:20,238 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:37:20,238 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:37:20,239 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:37:20,240 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:37:20" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:37:20,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:37:20,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:37:20,319 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-09-24 21:37:20,319 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:37:20,319 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:37:20,319 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-09-24 21:37:20,319 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 21:37:20,320 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:37:20,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 21:37:20,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:37:20,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 21:37:20,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 21:37:20,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:37:20,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 21:37:20,625 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:37:20,626 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 21:37:20,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:37:20 BoogieIcfgContainer [2020-09-24 21:37:20,634 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:37:20,636 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:37:20,636 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:37:20,641 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:37:20,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:37:19" (1/3) ... [2020-09-24 21:37:20,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60183711 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:37:20, skipping insertion in model container [2020-09-24 21:37:20,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:37:20" (2/3) ... [2020-09-24 21:37:20,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60183711 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:37:20, skipping insertion in model container [2020-09-24 21:37:20,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:37:20" (3/3) ... [2020-09-24 21:37:20,647 INFO L109 eAbstractionObserver]: Analyzing ICFG test09.c [2020-09-24 21:37:20,662 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:37:20,673 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:37:20,710 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:37:20,755 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:37:20,755 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:37:20,755 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:37:20,755 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:37:20,755 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:37:20,756 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:37:20,756 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:37:20,756 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:37:20,781 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states. [2020-09-24 21:37:20,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-09-24 21:37:20,789 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:37:20,790 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:37:20,791 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:37:20,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:37:20,798 INFO L82 PathProgramCache]: Analyzing trace with hash 19454853, now seen corresponding path program 1 times [2020-09-24 21:37:20,807 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:37:20,807 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [314296414] [2020-09-24 21:37:20,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:37:21,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:37:21,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:37:21,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:37:22,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:37:22,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 21:37:22,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:37:22,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1875 [2020-09-24 21:37:22,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:37:22,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 21:37:22,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-24 21:37:22,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 21:37:22,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-24 21:37:23,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:37:23,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:37:23,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:37:23,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:37:23,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 21:37:23,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:37:23,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-24 21:37:23,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:37:23,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 21:37:23,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:37:23,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:37:23,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:37:23,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-24 21:37:23,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:37:23,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:37:23,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:37:23,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 21:37:23,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:37:23,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 21:37:23,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:37:23,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 21:37:23,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 21:37:23,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 21:37:23,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:37:23,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:37:23,784 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [314296414] [2020-09-24 21:37:23,786 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:37:23,786 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-09-24 21:37:23,787 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144022016] [2020-09-24 21:37:23,794 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-24 21:37:23,794 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:37:23,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-24 21:37:23,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-09-24 21:37:23,816 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 15 states. [2020-09-24 21:37:24,450 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2020-09-24 21:37:24,607 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2020-09-24 21:37:24,776 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 62 [2020-09-24 21:37:24,950 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 66 [2020-09-24 21:37:25,089 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 58 [2020-09-24 21:37:25,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:37:25,251 INFO L93 Difference]: Finished difference Result 69 states and 70 transitions. [2020-09-24 21:37:25,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-24 21:37:25,257 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 42 [2020-09-24 21:37:25,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:37:25,277 INFO L225 Difference]: With dead ends: 69 [2020-09-24 21:37:25,277 INFO L226 Difference]: Without dead ends: 44 [2020-09-24 21:37:25,284 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=215, Invalid=597, Unknown=0, NotChecked=0, Total=812 [2020-09-24 21:37:25,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-09-24 21:37:25,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2020-09-24 21:37:25,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-09-24 21:37:25,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 43 transitions. [2020-09-24 21:37:25,335 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 43 transitions. Word has length 42 [2020-09-24 21:37:25,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:37:25,336 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 43 transitions. [2020-09-24 21:37:25,336 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-24 21:37:25,337 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 43 transitions. [2020-09-24 21:37:25,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-24 21:37:25,338 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:37:25,339 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:37:25,339 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:37:25,339 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:37:25,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:37:25,340 INFO L82 PathProgramCache]: Analyzing trace with hash 1202217324, now seen corresponding path program 1 times [2020-09-24 21:37:25,340 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:37:25,340 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1365037985] [2020-09-24 21:37:25,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:37:25,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:37:25,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:37:25,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:37:25,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-09-24 21:37:25,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:37:25,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-09-24 21:37:25,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:37:25,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:37:25,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-09-24 21:37:25,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 21:37:25,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:37:25,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:37:25,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:37:25,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:37:25,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:37:25,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 21:37:25,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:37:25,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 21:37:25,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:37:25,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:37:25,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:37:25,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:37:25,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:37:25,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-24 21:37:25,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:37:25,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:37:25,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:37:25,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-24 21:37:25,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:37:25,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-24 21:37:25,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:37:25,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:37:25,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:37:25,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 21:37:25,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:37:25,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:37:25,747 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1365037985] [2020-09-24 21:37:25,747 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:37:25,747 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 21:37:25,747 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050358438] [2020-09-24 21:37:25,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 21:37:25,751 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:37:25,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 21:37:25,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-24 21:37:25,753 INFO L87 Difference]: Start difference. First operand 44 states and 43 transitions. Second operand 7 states. [2020-09-24 21:37:25,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:37:25,902 INFO L93 Difference]: Finished difference Result 44 states and 43 transitions. [2020-09-24 21:37:25,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 21:37:25,902 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 43 [2020-09-24 21:37:25,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:37:25,903 INFO L225 Difference]: With dead ends: 44 [2020-09-24 21:37:25,904 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 21:37:25,906 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-09-24 21:37:25,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 21:37:25,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 21:37:25,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 21:37:25,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 21:37:25,907 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 43 [2020-09-24 21:37:25,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:37:25,907 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 21:37:25,907 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 21:37:25,907 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 21:37:25,908 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 21:37:25,908 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:37:25,910 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 21:37:26,229 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 37 [2020-09-24 21:37:26,237 INFO L268 CegarLoopResult]: For program point L4-3(line 4) no Hoare annotation was computed. [2020-09-24 21:37:26,237 INFO L268 CegarLoopResult]: For program point L4-4(line 4) no Hoare annotation was computed. [2020-09-24 21:37:26,238 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-09-24 21:37:26,238 INFO L268 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-09-24 21:37:26,238 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-24 21:37:26,238 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~p2~0.base |old(~p2~0.base)|) (= |~#b~0.offset| |old(~#b~0.offset)|) (= |old(#length)| |#length|) (= |~#a~0.offset| |old(~#a~0.offset)|) (= ~p2~0.offset |old(~p2~0.offset)|) (= |~#b~0.base| |old(~#b~0.base)|) (= |#NULL.base| |old(#NULL.base)|) (= ~p1~0.offset |old(~p1~0.offset)|) (= ~p1~0.base |old(~p1~0.base)|) (= |~#a~0.base| |old(~#a~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-09-24 21:37:26,239 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-09-24 21:37:26,239 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-09-24 21:37:26,239 INFO L268 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-09-24 21:37:26,239 INFO L268 CegarLoopResult]: For program point L4-2(line 4) no Hoare annotation was computed. [2020-09-24 21:37:26,239 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-24 21:37:26,240 INFO L268 CegarLoopResult]: For program point fFINAL(lines 7 15) no Hoare annotation was computed. [2020-09-24 21:37:26,240 INFO L268 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-09-24 21:37:26,240 INFO L268 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2020-09-24 21:37:26,240 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-09-24 21:37:26,240 INFO L268 CegarLoopResult]: For program point L9(lines 9 14) no Hoare annotation was computed. [2020-09-24 21:37:26,240 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-09-24 21:37:26,241 INFO L268 CegarLoopResult]: For program point fEXIT(lines 7 15) no Hoare annotation was computed. [2020-09-24 21:37:26,241 INFO L268 CegarLoopResult]: For program point L8-1(line 8) no Hoare annotation was computed. [2020-09-24 21:37:26,241 INFO L268 CegarLoopResult]: For program point L8-2(line 8) no Hoare annotation was computed. [2020-09-24 21:37:26,241 INFO L264 CegarLoopResult]: At program point fENTRY(lines 7 15) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (not (= |old(~p1~0.offset)| |~#a~0.offset|)) (not (= ~p2~0.offset |~#b~0.offset|)) (not (= |old(~p1~0.base)| |~#a~0.base|)) (not (= |~#b~0.base| ~p2~0.base)) (and (= |old(~p1~0.offset)| ~p1~0.offset) (= |old(~p1~0.base)| ~p1~0.base)) (= |~#b~0.base| |~#a~0.base|) (not (= (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset) 1))) [2020-09-24 21:37:26,241 INFO L268 CegarLoopResult]: For program point L8-3(line 8) no Hoare annotation was computed. [2020-09-24 21:37:26,241 INFO L268 CegarLoopResult]: For program point L8-4(line 8) no Hoare annotation was computed. [2020-09-24 21:37:26,242 INFO L268 CegarLoopResult]: For program point L8-5(line 8) no Hoare annotation was computed. [2020-09-24 21:37:26,242 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-24 21:37:26,242 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= (select |#valid| |~#a~0.base|) 1) (not (= |~#b~0.base| |~#a~0.base|))) [2020-09-24 21:37:26,242 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-24 21:37:26,242 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-24 21:37:26,243 INFO L268 CegarLoopResult]: For program point L31(lines 31 33) no Hoare annotation was computed. [2020-09-24 21:37:26,243 INFO L268 CegarLoopResult]: For program point L31-1(line 31) no Hoare annotation was computed. [2020-09-24 21:37:26,243 INFO L268 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-09-24 21:37:26,243 INFO L268 CegarLoopResult]: For program point L31-2(line 31) no Hoare annotation was computed. [2020-09-24 21:37:26,243 INFO L268 CegarLoopResult]: For program point L29-1(line 29) no Hoare annotation was computed. [2020-09-24 21:37:26,244 INFO L264 CegarLoopResult]: At program point L27(line 27) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (and (= ~p2~0.offset |~#b~0.offset|) (= |~#a~0.base| ~p1~0.base) (= |~#b~0.base| ~p2~0.base) (= (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset) 1) (= ~p1~0.offset |~#a~0.offset|)) (= |~#b~0.base| |~#a~0.base|)) [2020-09-24 21:37:26,244 INFO L268 CegarLoopResult]: For program point L27-1(line 27) no Hoare annotation was computed. [2020-09-24 21:37:26,244 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-24 21:37:26,244 INFO L268 CegarLoopResult]: For program point L27-2(line 27) no Hoare annotation was computed. [2020-09-24 21:37:26,244 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 17 39) no Hoare annotation was computed. [2020-09-24 21:37:26,244 INFO L268 CegarLoopResult]: For program point L25-1(line 25) no Hoare annotation was computed. [2020-09-24 21:37:26,244 INFO L268 CegarLoopResult]: For program point L27-3(line 27) no Hoare annotation was computed. [2020-09-24 21:37:26,244 INFO L268 CegarLoopResult]: For program point L23(line 23) no Hoare annotation was computed. [2020-09-24 21:37:26,245 INFO L268 CegarLoopResult]: For program point L25-2(line 25) no Hoare annotation was computed. [2020-09-24 21:37:26,245 INFO L268 CegarLoopResult]: For program point L25-3(line 25) no Hoare annotation was computed. [2020-09-24 21:37:26,245 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 17 39) no Hoare annotation was computed. [2020-09-24 21:37:26,245 INFO L268 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-09-24 21:37:26,245 INFO L264 CegarLoopResult]: At program point L32(lines 17 39) the Hoare annotation is: (or (= |~#a~0.base| |~#b~0.base|) (not (= (select |#valid| |~#a~0.base|) 1))) [2020-09-24 21:37:26,246 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 37) no Hoare annotation was computed. [2020-09-24 21:37:26,246 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 17 39) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (and (= ~p2~0.base |old(~p2~0.base)|) (= |old(~p2~0.offset)| ~p2~0.offset) (= |old(~p1~0.offset)| ~p1~0.offset) (= |old(~p1~0.base)| ~p1~0.base)) (= |~#b~0.base| |~#a~0.base|)) [2020-09-24 21:37:26,246 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-24 21:37:26,246 INFO L268 CegarLoopResult]: For program point L22-1(line 22) no Hoare annotation was computed. [2020-09-24 21:37:26,246 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-09-24 21:37:26,246 INFO L268 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-09-24 21:37:26,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 09:37:26 BoogieIcfgContainer [2020-09-24 21:37:26,269 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 21:37:26,272 INFO L168 Benchmark]: Toolchain (without parser) took 6494.97 ms. Allocated memory was 140.0 MB in the beginning and 286.8 MB in the end (delta: 146.8 MB). Free memory was 103.7 MB in the beginning and 191.7 MB in the end (delta: -87.9 MB). Peak memory consumption was 58.9 MB. Max. memory is 7.1 GB. [2020-09-24 21:37:26,273 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 21:37:26,274 INFO L168 Benchmark]: CACSL2BoogieTranslator took 334.83 ms. Allocated memory is still 140.0 MB. Free memory was 103.1 MB in the beginning and 93.2 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-09-24 21:37:26,275 INFO L168 Benchmark]: Boogie Preprocessor took 120.08 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 93.2 MB in the beginning and 181.0 MB in the end (delta: -87.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. [2020-09-24 21:37:26,276 INFO L168 Benchmark]: RCFGBuilder took 396.05 ms. Allocated memory is still 202.9 MB. Free memory was 181.0 MB in the beginning and 163.3 MB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 7.1 GB. [2020-09-24 21:37:26,277 INFO L168 Benchmark]: TraceAbstraction took 5634.12 ms. Allocated memory was 202.9 MB in the beginning and 286.8 MB in the end (delta: 83.9 MB). Free memory was 162.7 MB in the beginning and 191.7 MB in the end (delta: -29.0 MB). Peak memory consumption was 54.9 MB. Max. memory is 7.1 GB. [2020-09-24 21:37:26,281 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 334.83 ms. Allocated memory is still 140.0 MB. Free memory was 103.1 MB in the beginning and 93.2 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 120.08 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 93.2 MB in the beginning and 181.0 MB in the end (delta: -87.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 396.05 ms. Allocated memory is still 202.9 MB. Free memory was 181.0 MB in the beginning and 163.3 MB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5634.12 ms. Allocated memory was 202.9 MB in the beginning and 286.8 MB in the end (delta: 83.9 MB). Free memory was 162.7 MB in the beginning and 191.7 MB in the end (delta: -29.0 MB). Peak memory consumption was 54.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 37]: 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: 17]: Loop Invariant Derived loop invariant: a == b || !(\valid[a] == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 52 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.1s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 64 SDtfs, 142 SDslu, 242 SDs, 0 SdLazy, 300 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 7 NumberOfFragments, 168 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 129 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 85 NumberOfCodeBlocks, 85 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 83 ConstructedInterpolants, 0 QuantifiedInterpolants, 25021 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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...