/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/test10.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 17:07:46,134 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 17:07:46,139 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 17:07:46,166 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 17:07:46,167 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 17:07:46,168 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 17:07:46,169 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 17:07:46,171 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 17:07:46,173 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 17:07:46,174 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 17:07:46,175 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 17:07:46,176 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 17:07:46,177 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 17:07:46,178 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 17:07:46,179 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 17:07:46,181 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 17:07:46,182 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 17:07:46,183 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 17:07:46,185 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 17:07:46,187 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 17:07:46,189 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 17:07:46,190 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 17:07:46,191 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 17:07:46,192 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 17:07:46,195 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-24 17:07:46,205 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 17:07:46,206 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 17:07:46,206 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 17:07:46,207 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 17:07:46,249 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 17:07:46,249 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 17:07:46,252 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 17:07:46,252 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 17:07:46,252 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 17:07:46,252 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 17:07:46,253 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 17:07:46,253 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 17:07:46,253 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 17:07:46,254 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 17:07:46,255 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 17:07:46,255 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 17:07:46,255 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 17:07:46,256 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 17:07:46,257 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 17:07:46,257 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 17:07:46,257 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 17:07:46,258 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 17:07:46,258 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 17:07:46,258 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 17:07:46,258 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 17:07:46,259 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 17:07:46,259 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 17:07:46,259 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 17:07:46,259 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 17:07:46,259 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 17:07:46,260 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 17:07:46,260 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 17:07:46,260 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 17:07:46,260 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true; [2020-09-24 17:07:46,747 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 17:07:46,776 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 17:07:46,781 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 17:07:46,783 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 17:07:46,784 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 17:07:46,785 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test10.c [2020-09-24 17:07:46,868 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/809c3dbd8/14e9c2c40f2645c9a50f5954b9debb79/FLAGabfcd47df [2020-09-24 17:07:47,420 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 17:07:47,421 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/test10.c [2020-09-24 17:07:47,432 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/809c3dbd8/14e9c2c40f2645c9a50f5954b9debb79/FLAGabfcd47df [2020-09-24 17:07:47,795 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/809c3dbd8/14e9c2c40f2645c9a50f5954b9debb79 [2020-09-24 17:07:47,812 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 17:07:47,819 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 17:07:47,820 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 17:07:47,820 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 17:07:47,825 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 17:07:47,826 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:07:47" (1/1) ... [2020-09-24 17:07:47,830 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6752e30a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:07:47, skipping insertion in model container [2020-09-24 17:07:47,831 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:07:47" (1/1) ... [2020-09-24 17:07:47,840 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 17:07:47,871 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 17:07:48,086 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:07:48,102 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 17:07:48,121 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:07:48,141 INFO L208 MainTranslator]: Completed translation [2020-09-24 17:07:48,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:07:48 WrapperNode [2020-09-24 17:07:48,142 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 17:07:48,143 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 17:07:48,143 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 17:07:48,143 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 17:07:48,235 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:07:48" (1/1) ... [2020-09-24 17:07:48,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:07:48" (1/1) ... [2020-09-24 17:07:48,250 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:07:48" (1/1) ... [2020-09-24 17:07:48,250 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:07:48" (1/1) ... [2020-09-24 17:07:48,264 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:07:48" (1/1) ... [2020-09-24 17:07:48,267 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:07:48" (1/1) ... [2020-09-24 17:07:48,269 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:07:48" (1/1) ... [2020-09-24 17:07:48,272 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 17:07:48,272 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 17:07:48,273 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 17:07:48,273 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 17:07:48,274 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:07:48" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 17:07:48,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 17:07:48,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 17:07:48,362 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-09-24 17:07:48,362 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 17:07:48,363 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 17:07:48,363 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 17:07:48,363 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-09-24 17:07:48,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 17:07:48,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 17:07:48,363 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 17:07:48,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 17:07:48,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 17:07:48,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 17:07:48,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 17:07:48,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 17:07:48,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-24 17:07:48,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 17:07:48,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 17:07:48,799 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 17:07:48,799 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 17:07:48,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:07:48 BoogieIcfgContainer [2020-09-24 17:07:48,805 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 17:07:48,806 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 17:07:48,807 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 17:07:48,815 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 17:07:48,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 05:07:47" (1/3) ... [2020-09-24 17:07:48,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e2f33a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:07:48, skipping insertion in model container [2020-09-24 17:07:48,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:07:48" (2/3) ... [2020-09-24 17:07:48,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e2f33a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:07:48, skipping insertion in model container [2020-09-24 17:07:48,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:07:48" (3/3) ... [2020-09-24 17:07:48,819 INFO L109 eAbstractionObserver]: Analyzing ICFG test10.c [2020-09-24 17:07:48,829 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 17:07:48,837 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 17:07:48,856 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 17:07:48,883 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 17:07:48,883 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 17:07:48,884 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 17:07:48,884 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 17:07:48,884 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 17:07:48,884 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 17:07:48,884 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 17:07:48,884 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 17:07:48,906 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states. [2020-09-24 17:07:48,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-09-24 17:07:48,915 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:07:48,917 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:07:48,917 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:07:48,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:07:48,925 INFO L82 PathProgramCache]: Analyzing trace with hash -424687121, now seen corresponding path program 1 times [2020-09-24 17:07:48,936 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:07:48,936 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [696054041] [2020-09-24 17:07:48,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:07:49,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:07:49,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:07:53,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:07:53,867 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:07:53,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-24 17:07:53,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 17:07:53,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4554 [2020-09-24 17:07:53,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:07:53,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 17:07:53,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-24 17:07:53,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-24 17:07:53,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 17:07:54,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:07:54,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:07:54,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:07:54,745 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:07:54,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 17:07:54,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:07:54,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-09-24 17:07:54,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:07:54,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:07:54,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:07:54,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 17:07:54,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:07:54,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-24 17:07:54,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:07:54,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:07:55,062 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:07:55,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 17:07:55,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:07:55,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-24 17:07:55,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:07:55,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 17:07:55,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 17:07:55,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 17:07:55,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:07:55,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:07:55,281 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [696054041] [2020-09-24 17:07:55,283 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:07:55,284 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-09-24 17:07:55,285 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799031053] [2020-09-24 17:07:55,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-09-24 17:07:55,292 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:07:55,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-09-24 17:07:55,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2020-09-24 17:07:55,318 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 22 states. [2020-09-24 17:07:56,692 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2020-09-24 17:07:57,070 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 99 [2020-09-24 17:07:57,430 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 102 [2020-09-24 17:07:57,601 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2020-09-24 17:07:58,004 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2020-09-24 17:07:58,144 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2020-09-24 17:07:58,298 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2020-09-24 17:07:58,433 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2020-09-24 17:07:58,603 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2020-09-24 17:07:58,760 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2020-09-24 17:07:58,914 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2020-09-24 17:07:58,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:07:58,965 INFO L93 Difference]: Finished difference Result 89 states and 90 transitions. [2020-09-24 17:07:58,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-24 17:07:58,973 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 60 [2020-09-24 17:07:58,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:07:58,985 INFO L225 Difference]: With dead ends: 89 [2020-09-24 17:07:58,985 INFO L226 Difference]: Without dead ends: 63 [2020-09-24 17:07:58,989 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 271 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=411, Invalid=1569, Unknown=0, NotChecked=0, Total=1980 [2020-09-24 17:07:59,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-09-24 17:07:59,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2020-09-24 17:07:59,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-09-24 17:07:59,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 62 transitions. [2020-09-24 17:07:59,036 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 62 transitions. Word has length 60 [2020-09-24 17:07:59,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:07:59,037 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 62 transitions. [2020-09-24 17:07:59,037 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-09-24 17:07:59,037 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 62 transitions. [2020-09-24 17:07:59,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-09-24 17:07:59,039 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:07:59,039 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:07:59,039 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 17:07:59,040 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:07:59,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:07:59,040 INFO L82 PathProgramCache]: Analyzing trace with hash 251788018, now seen corresponding path program 1 times [2020-09-24 17:07:59,041 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:07:59,041 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [623590786] [2020-09-24 17:07:59,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:07:59,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:07:59,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:08:00,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:08:03,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:08:08,653 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:08:08,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 17:08:08,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 17:08:08,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9570 [2020-09-24 17:08:08,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:08:08,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 17:08:08,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-24 17:08:08,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-24 17:08:08,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:08:09,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:08:09,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:08:09,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:08:09,503 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:08:09,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 17:08:09,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:08:09,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-24 17:08:09,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:08:09,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:08:09,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:08:09,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 17:08:09,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:08:09,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-24 17:08:09,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:08:09,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:08:09,773 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:08:09,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 17:08:09,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:08:09,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-24 17:08:09,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:08:09,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 17:08:09,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 17:08:09,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 17:08:09,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:08:10,164 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 37 [2020-09-24 17:08:10,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:08:10,197 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [623590786] [2020-09-24 17:08:10,198 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:08:10,198 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2020-09-24 17:08:10,198 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213631939] [2020-09-24 17:08:10,200 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-09-24 17:08:10,201 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:08:10,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-09-24 17:08:10,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=490, Unknown=0, NotChecked=0, Total=552 [2020-09-24 17:08:10,202 INFO L87 Difference]: Start difference. First operand 63 states and 62 transitions. Second operand 24 states. [2020-09-24 17:08:11,893 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2020-09-24 17:08:13,145 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-09-24 17:08:13,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:08:13,170 INFO L93 Difference]: Finished difference Result 63 states and 62 transitions. [2020-09-24 17:08:13,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-24 17:08:13,170 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 62 [2020-09-24 17:08:13,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:08:13,171 INFO L225 Difference]: With dead ends: 63 [2020-09-24 17:08:13,172 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 17:08:13,174 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 336 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=384, Invalid=1778, Unknown=0, NotChecked=0, Total=2162 [2020-09-24 17:08:13,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 17:08:13,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 17:08:13,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 17:08:13,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 17:08:13,175 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 62 [2020-09-24 17:08:13,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:08:13,175 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 17:08:13,175 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-09-24 17:08:13,175 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 17:08:13,175 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 17:08:13,176 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 17:08:13,178 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 17:08:13,372 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-09-24 17:08:13,528 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 44 [2020-09-24 17:08:13,853 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 74 [2020-09-24 17:08:13,964 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 57 [2020-09-24 17:08:13,985 INFO L268 CegarLoopResult]: For program point L5-4(line 5) no Hoare annotation was computed. [2020-09-24 17:08:13,985 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-09-24 17:08:13,986 INFO L268 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-09-24 17:08:13,986 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-24 17:08:13,986 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |~#p1~0.base| |old(~#p1~0.base)|) (= |old(~#a~0.offset)| |~#a~0.offset|) (= |old(#length)| |#length|) (= ~pp2~0.base |old(~pp2~0.base)|) (= |~#b~0.base| |old(~#b~0.base)|) (= |old(~pp1~0.base)| ~pp1~0.base) (= |old(~#a~0.base)| |~#a~0.base|) (= |old(~#b~0.offset)| |~#b~0.offset|) (= |old(#valid)| |#valid|) (= |old(#NULL.base)| |#NULL.base|) (= |old(~#p2~0.base)| |~#p2~0.base|) (= |old(~#p2~0.offset)| |~#p2~0.offset|) (= |old(~pp2~0.offset)| ~pp2~0.offset) (= |old(~pp1~0.offset)| ~pp1~0.offset) (= |#NULL.offset| |old(#NULL.offset)|) (= |~#p1~0.offset| |old(~#p1~0.offset)|)) [2020-09-24 17:08:13,986 INFO L268 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2020-09-24 17:08:13,987 INFO L268 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-09-24 17:08:13,987 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-09-24 17:08:13,987 INFO L268 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-09-24 17:08:13,987 INFO L268 CegarLoopResult]: For program point L5-1(line 5) no Hoare annotation was computed. [2020-09-24 17:08:13,987 INFO L268 CegarLoopResult]: For program point L6-2(line 6) no Hoare annotation was computed. [2020-09-24 17:08:13,987 INFO L268 CegarLoopResult]: For program point L5-2(line 5) no Hoare annotation was computed. [2020-09-24 17:08:13,988 INFO L268 CegarLoopResult]: For program point L6-3(line 6) no Hoare annotation was computed. [2020-09-24 17:08:13,988 INFO L268 CegarLoopResult]: For program point L5-3(line 5) no Hoare annotation was computed. [2020-09-24 17:08:13,988 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-24 17:08:13,988 INFO L268 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-09-24 17:08:13,988 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-09-24 17:08:13,988 INFO L268 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2020-09-24 17:08:13,989 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-09-24 17:08:13,989 INFO L268 CegarLoopResult]: For program point L11-1(line 11) no Hoare annotation was computed. [2020-09-24 17:08:13,989 INFO L268 CegarLoopResult]: For program point L10-1(line 10) no Hoare annotation was computed. [2020-09-24 17:08:13,989 INFO L268 CegarLoopResult]: For program point L11-2(line 11) no Hoare annotation was computed. [2020-09-24 17:08:13,989 INFO L268 CegarLoopResult]: For program point fEXIT(lines 9 14) no Hoare annotation was computed. [2020-09-24 17:08:13,990 INFO L264 CegarLoopResult]: At program point fENTRY(lines 9 14) the Hoare annotation is: (or (not (= |~#p1~0.offset| ~pp1~0.offset)) (= |~#b~0.base| |old(~pp2~0.base)|) (not (= (select |#valid| |~#a~0.base|) 1)) (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(~pp2~0.offset)| ~pp2~0.offset) (= |#memory_int| |old(#memory_int)|) (= ~pp2~0.base |old(~pp2~0.base)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) (not (= |~#b~0.base| (select (select |old(#memory_$Pointer$.base)| |old(~pp2~0.base)|) |old(~pp2~0.offset)|))) (= |~#p1~0.base| |~#p2~0.base|) (= |~#a~0.base| |old(~pp2~0.base)|) (not (= (select (select |old(#memory_$Pointer$.offset)| |~#p2~0.base|) |~#p2~0.offset|) |~#b~0.offset|)) (not (= |~#p1~0.base| ~pp1~0.base)) (not (= (select |#valid| |~#b~0.base|) 1)) (= |~#p2~0.base| |~#a~0.base|) (not (= (select (select |old(#memory_$Pointer$.base)| |~#p1~0.base|) |~#p1~0.offset|) |~#a~0.base|)) (= |~#b~0.base| |~#a~0.base|) (not (= (select (select |old(#memory_$Pointer$.offset)| |old(~pp2~0.base)|) |old(~pp2~0.offset)|) |~#b~0.offset|)) (= |~#p1~0.base| |~#a~0.base|) (= (select |#valid| |~#p1~0.base|) 0) (= |~#b~0.base| |~#p2~0.base|) (not (= |~#b~0.base| (select (select |old(#memory_$Pointer$.base)| |~#p2~0.base|) |~#p2~0.offset|))) (not (= (select (select |old(#memory_$Pointer$.offset)| |~#p1~0.base|) |~#p1~0.offset|) |~#a~0.offset|)) (= |~#b~0.base| |~#p1~0.base|)) [2020-09-24 17:08:13,990 INFO L268 CegarLoopResult]: For program point fFINAL(lines 9 14) no Hoare annotation was computed. [2020-09-24 17:08:13,990 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-24 17:08:13,990 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (not (= |~#b~0.base| |~#p1~0.base|)) (= (select |#valid| |~#a~0.base|) 1) (not (= |~#p1~0.base| |~#p2~0.base|)) (= (select |#valid| |~#b~0.base|) 1) (not (= |~#p2~0.base| |~#a~0.base|)) (not (= |~#b~0.base| |~#p2~0.base|)) (not (= (select |#valid| |~#p1~0.base|) 0)) (not (= |~#b~0.base| |~#a~0.base|)) (not (= |~#p1~0.base| |~#a~0.base|))) [2020-09-24 17:08:13,991 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-24 17:08:13,991 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-24 17:08:13,991 INFO L264 CegarLoopResult]: At program point L31(line 31) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (= |~#p1~0.base| |~#p2~0.base|) (= |~#p1~0.base| |~#a~0.base|) (= (select |#valid| |~#p1~0.base|) 0) (= |~#b~0.base| |~#p2~0.base|) (and (= |~#b~0.base| (select (select |#memory_$Pointer$.base| |~#p2~0.base|) |~#p2~0.offset|)) (not (= |~#b~0.base| ~pp2~0.base)) (= (select (select |#memory_$Pointer$.offset| ~pp2~0.base) ~pp2~0.offset) |~#b~0.offset|) (= (select (select |#memory_$Pointer$.offset| |~#p1~0.base|) |~#p1~0.offset|) |~#a~0.offset|) (not (= ~pp2~0.base |~#a~0.base|)) (= |~#p1~0.offset| ~pp1~0.offset) (= |~#p1~0.base| ~pp1~0.base) (= |~#b~0.base| (select (select |#memory_$Pointer$.base| ~pp2~0.base) ~pp2~0.offset)) (= (select (select |#memory_$Pointer$.offset| |~#p2~0.base|) |~#p2~0.offset|) |~#b~0.offset|) (= (select (select |#memory_$Pointer$.base| |~#p1~0.base|) |~#p1~0.offset|) |~#a~0.base|)) (not (= (select |#valid| |~#b~0.base|) 1)) (= |~#p2~0.base| |~#a~0.base|) (= |~#b~0.base| |~#a~0.base|) (= |~#b~0.base| |~#p1~0.base|)) [2020-09-24 17:08:13,991 INFO L268 CegarLoopResult]: For program point L31-1(line 31) no Hoare annotation was computed. [2020-09-24 17:08:13,991 INFO L268 CegarLoopResult]: For program point L31-2(line 31) no Hoare annotation was computed. [2020-09-24 17:08:13,992 INFO L268 CegarLoopResult]: For program point L31-3(line 31) no Hoare annotation was computed. [2020-09-24 17:08:13,992 INFO L268 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-09-24 17:08:13,992 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 16 49) no Hoare annotation was computed. [2020-09-24 17:08:13,992 INFO L268 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-09-24 17:08:13,992 INFO L268 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-09-24 17:08:13,992 INFO L268 CegarLoopResult]: For program point L36-1(line 36) no Hoare annotation was computed. [2020-09-24 17:08:13,992 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-09-24 17:08:13,993 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-09-24 17:08:13,993 INFO L268 CegarLoopResult]: For program point L20-1(line 20) no Hoare annotation was computed. [2020-09-24 17:08:13,993 INFO L268 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-09-24 17:08:13,993 INFO L268 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-09-24 17:08:13,993 INFO L268 CegarLoopResult]: For program point L41-1(line 41) no Hoare annotation was computed. [2020-09-24 17:08:13,993 INFO L268 CegarLoopResult]: For program point L41-2(line 41) no Hoare annotation was computed. [2020-09-24 17:08:13,994 INFO L268 CegarLoopResult]: For program point L41-4(line 41) no Hoare annotation was computed. [2020-09-24 17:08:13,994 INFO L268 CegarLoopResult]: For program point L41-5(line 41) no Hoare annotation was computed. [2020-09-24 17:08:13,994 INFO L268 CegarLoopResult]: For program point L41-6(lines 41 43) no Hoare annotation was computed. [2020-09-24 17:08:13,994 INFO L268 CegarLoopResult]: For program point L41-7(line 41) no Hoare annotation was computed. [2020-09-24 17:08:13,994 INFO L268 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-09-24 17:08:13,994 INFO L268 CegarLoopResult]: For program point L41-8(line 41) no Hoare annotation was computed. [2020-09-24 17:08:13,995 INFO L268 CegarLoopResult]: For program point L33-1(line 33) no Hoare annotation was computed. [2020-09-24 17:08:13,995 INFO L268 CegarLoopResult]: For program point L41-9(line 41) no Hoare annotation was computed. [2020-09-24 17:08:13,995 INFO L268 CegarLoopResult]: For program point L41-10(line 41) no Hoare annotation was computed. [2020-09-24 17:08:13,995 INFO L268 CegarLoopResult]: For program point L41-11(line 41) no Hoare annotation was computed. [2020-09-24 17:08:13,995 INFO L268 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-09-24 17:08:13,995 INFO L268 CegarLoopResult]: For program point L41-12(line 41) no Hoare annotation was computed. [2020-09-24 17:08:13,995 INFO L268 CegarLoopResult]: For program point L29-1(line 29) no Hoare annotation was computed. [2020-09-24 17:08:13,996 INFO L268 CegarLoopResult]: For program point L41-13(line 41) no Hoare annotation was computed. [2020-09-24 17:08:13,996 INFO L268 CegarLoopResult]: For program point L29-2(line 29) no Hoare annotation was computed. [2020-09-24 17:08:13,996 INFO L268 CegarLoopResult]: For program point L41-14(line 41) no Hoare annotation was computed. [2020-09-24 17:08:13,996 INFO L268 CegarLoopResult]: For program point L29-3(line 29) no Hoare annotation was computed. [2020-09-24 17:08:13,996 INFO L268 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-09-24 17:08:13,996 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 16 49) no Hoare annotation was computed. [2020-09-24 17:08:13,997 INFO L264 CegarLoopResult]: At program point L42(lines 16 49) the Hoare annotation is: (or (= |~#p2~0.base| |~#b~0.base|) (= |~#p2~0.base| |~#p1~0.base|) (not (= (select |#valid| |~#b~0.base|) 1)) (= |~#a~0.base| |~#p1~0.base|) (= |~#p2~0.base| |~#a~0.base|) (= (select |#valid| |~#p1~0.base|) 0) (= |~#a~0.base| |~#b~0.base|) (= |~#p1~0.base| |~#b~0.base|) (not (= (select |#valid| |~#a~0.base|) 1))) [2020-09-24 17:08:13,997 INFO L268 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-09-24 17:08:13,997 INFO L268 CegarLoopResult]: For program point L38-1(line 38) no Hoare annotation was computed. [2020-09-24 17:08:13,997 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-09-24 17:08:13,997 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 47) no Hoare annotation was computed. [2020-09-24 17:08:13,998 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 16 49) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (= |~#p1~0.base| |~#p2~0.base|) (= |~#p1~0.base| |~#a~0.base|) (= (select |#valid| |~#p1~0.base|) 0) (= |~#b~0.base| |~#p2~0.base|) (not (= (select |#valid| |~#b~0.base|) 1)) (= |~#p2~0.base| |~#a~0.base|) (= |~#b~0.base| |~#a~0.base|) (= |~#b~0.base| |~#p1~0.base|) (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(~pp2~0.offset)| ~pp2~0.offset) (= |#memory_int| |old(#memory_int)|) (= |old(~pp1~0.offset)| ~pp1~0.offset) (= ~pp2~0.base |old(~pp2~0.base)|) (= |old(~pp1~0.base)| ~pp1~0.base) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|))) [2020-09-24 17:08:13,998 INFO L268 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed. [2020-09-24 17:08:13,998 INFO L268 CegarLoopResult]: For program point L26-1(line 26) no Hoare annotation was computed. [2020-09-24 17:08:13,998 INFO L268 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-09-24 17:08:14,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 05:08:14 BoogieIcfgContainer [2020-09-24 17:08:14,023 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 17:08:14,026 INFO L168 Benchmark]: Toolchain (without parser) took 26211.52 ms. Allocated memory was 140.0 MB in the beginning and 457.2 MB in the end (delta: 317.2 MB). Free memory was 102.3 MB in the beginning and 156.7 MB in the end (delta: -54.4 MB). Peak memory consumption was 262.8 MB. Max. memory is 7.1 GB. [2020-09-24 17:08:14,027 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 140.0 MB. Free memory was 120.3 MB in the beginning and 119.8 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-09-24 17:08:14,028 INFO L168 Benchmark]: CACSL2BoogieTranslator took 322.49 ms. Allocated memory is still 140.0 MB. Free memory was 101.4 MB in the beginning and 91.5 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-09-24 17:08:14,029 INFO L168 Benchmark]: Boogie Preprocessor took 129.15 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 91.5 MB in the beginning and 179.8 MB in the end (delta: -88.3 MB). Peak memory consumption was 12.7 MB. Max. memory is 7.1 GB. [2020-09-24 17:08:14,030 INFO L168 Benchmark]: RCFGBuilder took 532.86 ms. Allocated memory is still 202.4 MB. Free memory was 179.8 MB in the beginning and 157.1 MB in the end (delta: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. [2020-09-24 17:08:14,031 INFO L168 Benchmark]: TraceAbstraction took 25217.17 ms. Allocated memory was 202.4 MB in the beginning and 457.2 MB in the end (delta: 254.8 MB). Free memory was 156.1 MB in the beginning and 156.7 MB in the end (delta: -539.8 kB). Peak memory consumption was 254.3 MB. Max. memory is 7.1 GB. [2020-09-24 17:08:14,035 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 140.0 MB. Free memory was 120.3 MB in the beginning and 119.8 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 322.49 ms. Allocated memory is still 140.0 MB. Free memory was 101.4 MB in the beginning and 91.5 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 129.15 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 91.5 MB in the beginning and 179.8 MB in the end (delta: -88.3 MB). Peak memory consumption was 12.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 532.86 ms. Allocated memory is still 202.4 MB. Free memory was 179.8 MB in the beginning and 157.1 MB in the end (delta: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 25217.17 ms. Allocated memory was 202.4 MB in the beginning and 457.2 MB in the end (delta: 254.8 MB). Free memory was 156.1 MB in the beginning and 156.7 MB in the end (delta: -539.8 kB). Peak memory consumption was 254.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 47]: 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: 16]: Loop Invariant Derived loop invariant: (((((((p2 == b || p2 == p1) || !(\valid[b] == 1)) || a == p1) || p2 == a) || \valid[p1] == 0) || a == b) || p1 == b) || !(\valid[a] == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 73 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 24.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 6.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 65 SDtfs, 557 SDslu, 316 SDs, 0 SdLazy, 1090 SolverSat, 251 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 104 GetRequests, 14 SyntacticMatches, 2 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 607 ImplicationChecksByTransitivity, 6.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73occurred 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, 392 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 301 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 17.0s InterpolantComputationTime, 122 NumberOfCodeBlocks, 122 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 120 ConstructedInterpolants, 0 QuantifiedInterpolants, 170396 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...