/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/test05.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 20:19:05,788 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 20:19:05,791 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 20:19:05,828 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 20:19:05,828 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 20:19:05,837 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 20:19:05,840 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 20:19:05,843 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 20:19:05,846 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 20:19:05,850 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 20:19:05,851 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 20:19:05,852 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 20:19:05,852 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 20:19:05,855 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 20:19:05,857 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 20:19:05,859 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 20:19:05,861 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 20:19:05,862 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 20:19:05,863 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 20:19:05,871 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 20:19:05,873 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 20:19:05,874 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 20:19:05,875 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 20:19:05,875 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 20:19:05,887 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-18 20:19:05,905 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 20:19:05,906 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 20:19:05,906 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 20:19:05,907 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 [2020-08-18 20:19:05,941 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 20:19:05,941 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 20:19:05,942 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 20:19:05,942 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 20:19:05,942 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 20:19:05,943 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 20:19:05,943 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 20:19:05,943 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 20:19:05,943 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 20:19:05,943 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 20:19:05,944 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 20:19:05,944 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 20:19:05,944 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 20:19:05,944 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 20:19:05,944 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 20:19:05,945 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 20:19:05,945 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 20:19:05,945 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 20:19:05,945 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 20:19:05,945 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 20:19:05,946 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 20:19:05,946 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 20:19:05,946 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 20:19:05,946 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 20:19:05,946 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 20:19:05,947 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 20:19:05,947 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 20:19:05,947 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 20:19:05,947 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 20:19:05,947 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SHALLOWEST; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SHALLOWEST; [2020-08-18 20:19:06,230 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 20:19:06,250 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 20:19:06,254 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 20:19:06,256 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 20:19:06,257 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 20:19:06,257 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test05.c [2020-08-18 20:19:06,320 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bf4ae20fa/d5d5ddf497d44d669a6a1c6208af3e44/FLAGc99885115 [2020-08-18 20:19:06,775 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 20:19:06,777 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/test05.c [2020-08-18 20:19:06,783 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bf4ae20fa/d5d5ddf497d44d669a6a1c6208af3e44/FLAGc99885115 [2020-08-18 20:19:07,103 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bf4ae20fa/d5d5ddf497d44d669a6a1c6208af3e44 [2020-08-18 20:19:07,112 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 20:19:07,113 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 20:19:07,114 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 20:19:07,114 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 20:19:07,120 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 20:19:07,121 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 08:19:07" (1/1) ... [2020-08-18 20:19:07,125 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bbd1661 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:19:07, skipping insertion in model container [2020-08-18 20:19:07,125 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 08:19:07" (1/1) ... [2020-08-18 20:19:07,134 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 20:19:07,154 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 20:19:07,370 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 20:19:07,382 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 20:19:07,399 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 20:19:07,414 INFO L208 MainTranslator]: Completed translation [2020-08-18 20:19:07,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:19:07 WrapperNode [2020-08-18 20:19:07,415 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 20:19:07,416 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 20:19:07,416 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 20:19:07,416 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 20:19:07,426 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:19:07" (1/1) ... [2020-08-18 20:19:07,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:19:07" (1/1) ... [2020-08-18 20:19:07,523 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:19:07" (1/1) ... [2020-08-18 20:19:07,524 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:19:07" (1/1) ... [2020-08-18 20:19:07,532 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:19:07" (1/1) ... [2020-08-18 20:19:07,534 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:19:07" (1/1) ... [2020-08-18 20:19:07,536 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:19:07" (1/1) ... [2020-08-18 20:19:07,546 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 20:19:07,546 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 20:19:07,547 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 20:19:07,547 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 20:19:07,548 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:19:07" (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 [2020-08-18 20:19:07,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 20:19:07,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 20:19:07,614 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2020-08-18 20:19:07,616 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-08-18 20:19:07,616 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 20:19:07,616 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 20:19:07,617 INFO L130 BoogieDeclarations]: Found specification of procedure g [2020-08-18 20:19:07,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-18 20:19:07,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-18 20:19:07,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-18 20:19:07,618 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-08-18 20:19:07,618 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 20:19:07,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-18 20:19:07,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-18 20:19:07,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-18 20:19:07,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 20:19:07,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 20:19:07,962 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 20:19:07,963 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-18 20:19:07,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 08:19:07 BoogieIcfgContainer [2020-08-18 20:19:07,972 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 20:19:07,974 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 20:19:07,974 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 20:19:07,984 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 20:19:07,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 08:19:07" (1/3) ... [2020-08-18 20:19:07,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6580d8f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 08:19:07, skipping insertion in model container [2020-08-18 20:19:07,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:19:07" (2/3) ... [2020-08-18 20:19:07,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6580d8f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 08:19:07, skipping insertion in model container [2020-08-18 20:19:07,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 08:19:07" (3/3) ... [2020-08-18 20:19:07,991 INFO L109 eAbstractionObserver]: Analyzing ICFG test05.c [2020-08-18 20:19:08,005 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 20:19:08,016 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 20:19:08,031 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 20:19:08,056 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 20:19:08,056 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 20:19:08,056 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 20:19:08,057 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 20:19:08,057 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 20:19:08,057 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 20:19:08,057 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 20:19:08,057 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 20:19:08,077 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-08-18 20:19:08,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-08-18 20:19:08,083 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:19:08,084 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 20:19:08,085 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:19:08,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:19:08,091 INFO L82 PathProgramCache]: Analyzing trace with hash -685779266, now seen corresponding path program 1 times [2020-08-18 20:19:08,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:19:08,098 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [981872801] [2020-08-18 20:19:08,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:19:08,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:19:08,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:19:08,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:19:08,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 20:19:08,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:19:08,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 20:19:08,447 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [981872801] [2020-08-18 20:19:08,450 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 20:19:08,450 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-18 20:19:08,451 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355677977] [2020-08-18 20:19:08,456 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 20:19:08,457 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:19:08,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 20:19:08,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-08-18 20:19:08,476 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 7 states. [2020-08-18 20:19:08,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:19:08,746 INFO L93 Difference]: Finished difference Result 36 states and 39 transitions. [2020-08-18 20:19:08,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-18 20:19:08,748 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-08-18 20:19:08,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:19:08,759 INFO L225 Difference]: With dead ends: 36 [2020-08-18 20:19:08,759 INFO L226 Difference]: Without dead ends: 21 [2020-08-18 20:19:08,763 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-08-18 20:19:08,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-08-18 20:19:08,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-08-18 20:19:08,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-08-18 20:19:08,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2020-08-18 20:19:08,808 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 14 [2020-08-18 20:19:08,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:19:08,809 INFO L479 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2020-08-18 20:19:08,809 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 20:19:08,809 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2020-08-18 20:19:08,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-08-18 20:19:08,811 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:19:08,811 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 20:19:08,811 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 20:19:08,812 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:19:08,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:19:08,812 INFO L82 PathProgramCache]: Analyzing trace with hash 636648720, now seen corresponding path program 1 times [2020-08-18 20:19:08,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:19:08,813 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1279486187] [2020-08-18 20:19:08,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:19:08,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:19:08,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:19:08,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:19:08,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 20:19:08,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:19:08,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 20:19:09,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:19:09,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 20:19:09,008 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1279486187] [2020-08-18 20:19:09,009 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 20:19:09,009 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-18 20:19:09,009 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969492980] [2020-08-18 20:19:09,011 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 20:19:09,012 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:19:09,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 20:19:09,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-08-18 20:19:09,013 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 7 states. [2020-08-18 20:19:09,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:19:09,207 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2020-08-18 20:19:09,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-18 20:19:09,208 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-08-18 20:19:09,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:19:09,209 INFO L225 Difference]: With dead ends: 23 [2020-08-18 20:19:09,209 INFO L226 Difference]: Without dead ends: 21 [2020-08-18 20:19:09,211 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-18 20:19:09,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-08-18 20:19:09,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-08-18 20:19:09,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-08-18 20:19:09,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 20 transitions. [2020-08-18 20:19:09,218 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 20 transitions. Word has length 19 [2020-08-18 20:19:09,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:19:09,218 INFO L479 AbstractCegarLoop]: Abstraction has 21 states and 20 transitions. [2020-08-18 20:19:09,218 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 20:19:09,218 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 20 transitions. [2020-08-18 20:19:09,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-08-18 20:19:09,219 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:19:09,220 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 20:19:09,220 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 20:19:09,220 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:19:09,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:19:09,221 INFO L82 PathProgramCache]: Analyzing trace with hash -1738724303, now seen corresponding path program 1 times [2020-08-18 20:19:09,221 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:19:09,221 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1153013676] [2020-08-18 20:19:09,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:19:09,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:19:09,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:19:09,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:19:09,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 20:19:09,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:19:09,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 20:19:09,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:19:09,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 20:19:09,660 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1153013676] [2020-08-18 20:19:09,660 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 20:19:09,661 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-18 20:19:09,661 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186581472] [2020-08-18 20:19:09,662 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-18 20:19:09,662 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:19:09,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-18 20:19:09,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2020-08-18 20:19:09,663 INFO L87 Difference]: Start difference. First operand 21 states and 20 transitions. Second operand 11 states. [2020-08-18 20:19:09,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:19:09,986 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2020-08-18 20:19:09,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-18 20:19:09,986 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 20 [2020-08-18 20:19:09,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:19:09,987 INFO L225 Difference]: With dead ends: 21 [2020-08-18 20:19:09,987 INFO L226 Difference]: Without dead ends: 0 [2020-08-18 20:19:09,988 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2020-08-18 20:19:09,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-18 20:19:09,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-18 20:19:09,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-18 20:19:09,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-18 20:19:09,990 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-08-18 20:19:09,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:19:09,990 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-18 20:19:09,990 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-18 20:19:09,991 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-18 20:19:09,991 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-18 20:19:09,991 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 20:19:09,994 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-18 20:19:10,129 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-18 20:19:10,130 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#NULL.base)| |#NULL.base|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-08-18 20:19:10,130 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-18 20:19:10,130 INFO L264 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |f_#in~a| f_~a) (= |#memory_int| |old(#memory_int)|) (= |f_#in~p2.base| f_~p2.base) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= f_~p1.offset |f_#in~p1.offset|) (= |f_#in~p1.base| f_~p1.base) (= f_~p2.offset |f_#in~p2.offset|)) [2020-08-18 20:19:10,130 INFO L268 CegarLoopResult]: For program point L12(lines 12 17) no Hoare annotation was computed. [2020-08-18 20:19:10,131 INFO L268 CegarLoopResult]: For program point L13-1(line 13) no Hoare annotation was computed. [2020-08-18 20:19:10,131 INFO L268 CegarLoopResult]: For program point fEXIT(lines 11 18) no Hoare annotation was computed. [2020-08-18 20:19:10,131 INFO L264 CegarLoopResult]: At program point fENTRY(lines 11 18) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) [2020-08-18 20:19:10,131 INFO L268 CegarLoopResult]: For program point fFINAL(lines 11 18) no Hoare annotation was computed. [2020-08-18 20:19:10,132 INFO L268 CegarLoopResult]: For program point gEXIT(lines 4 9) no Hoare annotation was computed. [2020-08-18 20:19:10,132 INFO L268 CegarLoopResult]: For program point gFINAL(lines 4 9) no Hoare annotation was computed. [2020-08-18 20:19:10,132 INFO L264 CegarLoopResult]: At program point gENTRY(lines 4 9) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) [2020-08-18 20:19:10,132 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-18 20:19:10,132 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-18 20:19:10,133 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-18 20:19:10,133 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-18 20:19:10,133 INFO L264 CegarLoopResult]: At program point L32(line 32) the Hoare annotation is: (let ((.cse0 (select (select |#memory_$Pointer$.base| |main_~#p2~0.base|) |main_~#p2~0.offset|))) (and (= |main_#t~mem4| 4) (not (= .cse0 |main_~#a~0.base|)) (not (= |main_~#p2~0.base| |main_~#a~0.base|)) (not (= |main_~#p1~0.base| |main_~#a~0.base|)) (not (= .cse0 |main_~#p1~0.base|)))) [2020-08-18 20:19:10,133 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2020-08-18 20:19:10,134 INFO L268 CegarLoopResult]: For program point L32-1(line 32) no Hoare annotation was computed. [2020-08-18 20:19:10,134 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 20 46) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-08-18 20:19:10,134 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 20 46) no Hoare annotation was computed. [2020-08-18 20:19:10,134 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 20 46) no Hoare annotation was computed. [2020-08-18 20:19:10,135 INFO L264 CegarLoopResult]: At program point L39(lines 20 46) the Hoare annotation is: false [2020-08-18 20:19:10,135 INFO L268 CegarLoopResult]: For program point L38(lines 38 40) no Hoare annotation was computed. [2020-08-18 20:19:10,135 INFO L268 CegarLoopResult]: For program point L34(lines 34 36) no Hoare annotation was computed. [2020-08-18 20:19:10,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 08:19:10 BoogieIcfgContainer [2020-08-18 20:19:10,147 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 20:19:10,150 INFO L168 Benchmark]: Toolchain (without parser) took 3036.05 ms. Allocated memory was 147.8 MB in the beginning and 233.3 MB in the end (delta: 85.5 MB). Free memory was 104.4 MB in the beginning and 91.9 MB in the end (delta: 12.5 MB). Peak memory consumption was 98.0 MB. Max. memory is 7.1 GB. [2020-08-18 20:19:10,152 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 147.8 MB. Free memory was 122.8 MB in the beginning and 122.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-18 20:19:10,152 INFO L168 Benchmark]: CACSL2BoogieTranslator took 301.29 ms. Allocated memory is still 147.8 MB. Free memory was 104.0 MB in the beginning and 94.1 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-08-18 20:19:10,154 INFO L168 Benchmark]: Boogie Preprocessor took 130.24 ms. Allocated memory was 147.8 MB in the beginning and 205.0 MB in the end (delta: 57.1 MB). Free memory was 94.1 MB in the beginning and 183.0 MB in the end (delta: -88.9 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2020-08-18 20:19:10,154 INFO L168 Benchmark]: RCFGBuilder took 426.03 ms. Allocated memory is still 205.0 MB. Free memory was 183.0 MB in the beginning and 163.4 MB in the end (delta: 19.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 7.1 GB. [2020-08-18 20:19:10,156 INFO L168 Benchmark]: TraceAbstraction took 2173.83 ms. Allocated memory was 205.0 MB in the beginning and 233.3 MB in the end (delta: 28.3 MB). Free memory was 162.8 MB in the beginning and 91.9 MB in the end (delta: 70.9 MB). Peak memory consumption was 99.2 MB. Max. memory is 7.1 GB. [2020-08-18 20:19:10,160 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 147.8 MB. Free memory was 122.8 MB in the beginning and 122.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 301.29 ms. Allocated memory is still 147.8 MB. Free memory was 104.0 MB in the beginning and 94.1 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 130.24 ms. Allocated memory was 147.8 MB in the beginning and 205.0 MB in the end (delta: 57.1 MB). Free memory was 94.1 MB in the beginning and 183.0 MB in the end (delta: -88.9 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 426.03 ms. Allocated memory is still 205.0 MB. Free memory was 183.0 MB in the beginning and 163.4 MB in the end (delta: 19.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2173.83 ms. Allocated memory was 205.0 MB in the beginning and 233.3 MB in the end (delta: 28.3 MB). Free memory was 162.8 MB in the beginning and 91.9 MB in the end (delta: 70.9 MB). Peak memory consumption was 99.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: 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: 20]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.9s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 44 SDtfs, 34 SDslu, 88 SDs, 0 SdLazy, 237 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 99 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 42 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 7578 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...