/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loops/for_bounded_loop1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-24 02:24:18,108 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 02:24:18,111 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 02:24:18,162 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-10-24 02:24:18,193 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 02:24:18,197 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 02:24:18,199 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 02:24:18,201 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 02:24:18,202 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 02:24:18,205 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 02:24:18,213 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 02:24:18,221 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 02:24:18,223 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 02:24:18,225 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 02:24:18,227 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 02:24:18,229 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 02:24:18,239 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-24 02:24:18,257 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 02:24:18,258 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 02:24:18,258 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 02:24:18,259 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-24 02:24:18,271 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 02:24:18,271 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 02:24:18,273 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 02:24:18,273 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 02:24:18,273 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 02:24:18,274 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 02:24:18,274 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 02:24:18,274 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 02:24:18,275 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 02:24:18,275 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 02:24:18,275 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 02:24:18,275 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 02:24:18,276 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 02:24:18,276 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 02:24:18,276 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 02:24:18,276 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-24 02:24:18,277 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 02:24:18,277 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 02:24:18,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 02:24:18,277 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 02:24:18,278 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-24 02:24:18,278 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 02:24:18,278 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-24 02:24:18,689 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 02:24:18,747 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 02:24:18,751 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 02:24:18,753 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 02:24:18,754 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 02:24:18,755 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/for_bounded_loop1.c [2020-10-24 02:24:18,840 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec6cc87de/2e394b53013548e08c8f3e1f3bb98ede/FLAGb53093732 [2020-10-24 02:24:19,424 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 02:24:19,425 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/for_bounded_loop1.c [2020-10-24 02:24:19,432 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec6cc87de/2e394b53013548e08c8f3e1f3bb98ede/FLAGb53093732 [2020-10-24 02:24:19,809 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec6cc87de/2e394b53013548e08c8f3e1f3bb98ede [2020-10-24 02:24:19,812 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 02:24:19,821 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-24 02:24:19,825 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 02:24:19,826 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 02:24:19,830 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 02:24:19,830 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:24:19" (1/1) ... [2020-10-24 02:24:19,834 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53660c54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:24:19, skipping insertion in model container [2020-10-24 02:24:19,835 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:24:19" (1/1) ... [2020-10-24 02:24:19,844 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 02:24:19,862 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 02:24:20,027 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 02:24:20,043 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 02:24:20,068 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 02:24:20,084 INFO L208 MainTranslator]: Completed translation [2020-10-24 02:24:20,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:24:20 WrapperNode [2020-10-24 02:24:20,085 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 02:24:20,086 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 02:24:20,086 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 02:24:20,086 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 02:24:20,100 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:24:20" (1/1) ... [2020-10-24 02:24:20,100 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:24:20" (1/1) ... [2020-10-24 02:24:20,108 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:24:20" (1/1) ... [2020-10-24 02:24:20,108 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:24:20" (1/1) ... [2020-10-24 02:24:20,114 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:24:20" (1/1) ... [2020-10-24 02:24:20,119 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:24:20" (1/1) ... [2020-10-24 02:24:20,120 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:24:20" (1/1) ... [2020-10-24 02:24:20,123 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 02:24:20,124 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 02:24:20,124 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 02:24:20,124 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 02:24:20,125 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:24:20" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-10-24 02:24:20,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-24 02:24:20,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 02:24:20,200 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-24 02:24:20,200 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-24 02:24:20,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-24 02:24:20,200 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-24 02:24:20,201 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-24 02:24:20,201 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-24 02:24:20,201 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-24 02:24:20,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 02:24:20,201 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-24 02:24:20,201 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-24 02:24:20,202 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-24 02:24:20,202 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-24 02:24:20,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-24 02:24:20,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 02:24:20,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 02:24:20,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 02:24:20,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 02:24:20,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 02:24:20,553 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 02:24:20,554 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-24 02:24:20,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:24:20 BoogieIcfgContainer [2020-10-24 02:24:20,556 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 02:24:20,559 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 02:24:20,559 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 02:24:20,563 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 02:24:20,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:24:19" (1/3) ... [2020-10-24 02:24:20,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11f98864 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:24:20, skipping insertion in model container [2020-10-24 02:24:20,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:24:20" (2/3) ... [2020-10-24 02:24:20,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11f98864 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:24:20, skipping insertion in model container [2020-10-24 02:24:20,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:24:20" (3/3) ... [2020-10-24 02:24:20,568 INFO L111 eAbstractionObserver]: Analyzing ICFG for_bounded_loop1.c [2020-10-24 02:24:20,585 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-24 02:24:20,592 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 02:24:20,623 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 02:24:20,680 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 02:24:20,680 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 02:24:20,680 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-24 02:24:20,680 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 02:24:20,681 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 02:24:20,681 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 02:24:20,684 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 02:24:20,684 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 02:24:20,721 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2020-10-24 02:24:20,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-24 02:24:20,743 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:24:20,746 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] [2020-10-24 02:24:20,747 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:24:20,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:24:20,760 INFO L82 PathProgramCache]: Analyzing trace with hash 1217808793, now seen corresponding path program 1 times [2020-10-24 02:24:20,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:24:20,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1258692621] [2020-10-24 02:24:20,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:24:20,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:24:21,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:24:21,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:24:21,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 02:24:21,158 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1258692621] [2020-10-24 02:24:21,163 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 02:24:21,163 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-24 02:24:21,164 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251684532] [2020-10-24 02:24:21,169 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-24 02:24:21,170 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:24:21,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-24 02:24:21,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-24 02:24:21,188 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 3 states. [2020-10-24 02:24:21,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:24:21,313 INFO L93 Difference]: Finished difference Result 74 states and 89 transitions. [2020-10-24 02:24:21,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 02:24:21,315 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-10-24 02:24:21,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:24:21,325 INFO L225 Difference]: With dead ends: 74 [2020-10-24 02:24:21,325 INFO L226 Difference]: Without dead ends: 40 [2020-10-24 02:24:21,329 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-24 02:24:21,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-24 02:24:21,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-10-24 02:24:21,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-24 02:24:21,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 42 transitions. [2020-10-24 02:24:21,389 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 42 transitions. Word has length 26 [2020-10-24 02:24:21,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:24:21,389 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 42 transitions. [2020-10-24 02:24:21,390 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-24 02:24:21,390 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 42 transitions. [2020-10-24 02:24:21,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-24 02:24:21,391 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:24:21,391 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] [2020-10-24 02:24:21,392 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 02:24:21,392 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:24:21,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:24:21,393 INFO L82 PathProgramCache]: Analyzing trace with hash 645225773, now seen corresponding path program 1 times [2020-10-24 02:24:21,393 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:24:21,393 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1904930438] [2020-10-24 02:24:21,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:24:21,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:24:21,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:24:21,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:24:21,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 02:24:21,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1904930438] [2020-10-24 02:24:21,541 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 02:24:21,541 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-24 02:24:21,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860978036] [2020-10-24 02:24:21,546 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-24 02:24:21,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:24:21,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-24 02:24:21,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-24 02:24:21,548 INFO L87 Difference]: Start difference. First operand 40 states and 42 transitions. Second operand 5 states. [2020-10-24 02:24:21,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:24:21,777 INFO L93 Difference]: Finished difference Result 59 states and 63 transitions. [2020-10-24 02:24:21,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-24 02:24:21,778 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-10-24 02:24:21,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:24:21,780 INFO L225 Difference]: With dead ends: 59 [2020-10-24 02:24:21,780 INFO L226 Difference]: Without dead ends: 51 [2020-10-24 02:24:21,781 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-24 02:24:21,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-10-24 02:24:21,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 41. [2020-10-24 02:24:21,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-24 02:24:21,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 43 transitions. [2020-10-24 02:24:21,799 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 43 transitions. Word has length 26 [2020-10-24 02:24:21,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:24:21,799 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 43 transitions. [2020-10-24 02:24:21,800 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-24 02:24:21,800 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2020-10-24 02:24:21,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-24 02:24:21,801 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:24:21,801 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] [2020-10-24 02:24:21,801 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 02:24:21,801 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:24:21,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:24:21,802 INFO L82 PathProgramCache]: Analyzing trace with hash -1061974677, now seen corresponding path program 1 times [2020-10-24 02:24:21,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:24:21,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [758041781] [2020-10-24 02:24:21,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:24:21,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:24:21,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:24:21,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:24:21,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 02:24:21,950 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [758041781] [2020-10-24 02:24:21,951 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 02:24:21,951 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-24 02:24:21,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21544257] [2020-10-24 02:24:21,952 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-24 02:24:21,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:24:21,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-24 02:24:21,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-24 02:24:21,953 INFO L87 Difference]: Start difference. First operand 41 states and 43 transitions. Second operand 7 states. [2020-10-24 02:24:22,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:24:22,276 INFO L93 Difference]: Finished difference Result 55 states and 57 transitions. [2020-10-24 02:24:22,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-24 02:24:22,276 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2020-10-24 02:24:22,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:24:22,278 INFO L225 Difference]: With dead ends: 55 [2020-10-24 02:24:22,278 INFO L226 Difference]: Without dead ends: 52 [2020-10-24 02:24:22,279 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-10-24 02:24:22,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-24 02:24:22,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 47. [2020-10-24 02:24:22,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-24 02:24:22,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 49 transitions. [2020-10-24 02:24:22,295 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 49 transitions. Word has length 27 [2020-10-24 02:24:22,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:24:22,296 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 49 transitions. [2020-10-24 02:24:22,296 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-24 02:24:22,296 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 49 transitions. [2020-10-24 02:24:22,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-24 02:24:22,297 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:24:22,297 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 02:24:22,298 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-24 02:24:22,298 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:24:22,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:24:22,299 INFO L82 PathProgramCache]: Analyzing trace with hash 594548319, now seen corresponding path program 1 times [2020-10-24 02:24:22,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:24:22,299 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [707781479] [2020-10-24 02:24:22,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:24:22,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:24:22,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:24:22,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:24:22,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-24 02:24:22,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:24:22,534 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 02:24:22,535 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [707781479] [2020-10-24 02:24:22,535 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 02:24:22,535 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-24 02:24:22,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762885788] [2020-10-24 02:24:22,536 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-24 02:24:22,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:24:22,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-24 02:24:22,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-24 02:24:22,540 INFO L87 Difference]: Start difference. First operand 47 states and 49 transitions. Second operand 9 states. [2020-10-24 02:24:23,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:24:23,028 INFO L93 Difference]: Finished difference Result 66 states and 69 transitions. [2020-10-24 02:24:23,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-24 02:24:23,029 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 37 [2020-10-24 02:24:23,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:24:23,030 INFO L225 Difference]: With dead ends: 66 [2020-10-24 02:24:23,031 INFO L226 Difference]: Without dead ends: 63 [2020-10-24 02:24:23,032 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2020-10-24 02:24:23,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-10-24 02:24:23,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 57. [2020-10-24 02:24:23,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-24 02:24:23,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 59 transitions. [2020-10-24 02:24:23,050 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 59 transitions. Word has length 37 [2020-10-24 02:24:23,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:24:23,051 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 59 transitions. [2020-10-24 02:24:23,051 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-24 02:24:23,051 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 59 transitions. [2020-10-24 02:24:23,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-24 02:24:23,052 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:24:23,053 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 02:24:23,053 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-24 02:24:23,053 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:24:23,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:24:23,054 INFO L82 PathProgramCache]: Analyzing trace with hash 2073888240, now seen corresponding path program 1 times [2020-10-24 02:24:23,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:24:23,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1470230282] [2020-10-24 02:24:23,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:24:23,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 02:24:23,075 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 02:24:23,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 02:24:23,096 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 02:24:23,147 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-24 02:24:23,147 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 02:24:23,148 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-24 02:24:23,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:24:23 BoogieIcfgContainer [2020-10-24 02:24:23,208 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 02:24:23,211 INFO L168 Benchmark]: Toolchain (without parser) took 3394.27 ms. Allocated memory was 125.8 MB in the beginning and 151.0 MB in the end (delta: 25.2 MB). Free memory was 102.5 MB in the beginning and 72.1 MB in the end (delta: 30.4 MB). Peak memory consumption was 56.5 MB. Max. memory is 8.0 GB. [2020-10-24 02:24:23,212 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 125.8 MB. Free memory was 102.0 MB in the beginning and 101.9 MB in the end (delta: 65.6 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-24 02:24:23,213 INFO L168 Benchmark]: CACSL2BoogieTranslator took 259.77 ms. Allocated memory is still 125.8 MB. Free memory was 101.9 MB in the beginning and 92.5 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-24 02:24:23,214 INFO L168 Benchmark]: Boogie Preprocessor took 36.85 ms. Allocated memory is still 125.8 MB. Free memory was 92.5 MB in the beginning and 91.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-24 02:24:23,215 INFO L168 Benchmark]: RCFGBuilder took 433.05 ms. Allocated memory was 125.8 MB in the beginning and 151.0 MB in the end (delta: 25.2 MB). Free memory was 91.1 MB in the beginning and 133.8 MB in the end (delta: -42.7 MB). Peak memory consumption was 17.4 MB. Max. memory is 8.0 GB. [2020-10-24 02:24:23,216 INFO L168 Benchmark]: TraceAbstraction took 2649.17 ms. Allocated memory is still 151.0 MB. Free memory was 133.5 MB in the beginning and 72.1 MB in the end (delta: 61.3 MB). Peak memory consumption was 62.1 MB. Max. memory is 8.0 GB. [2020-10-24 02:24:23,221 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 125.8 MB. Free memory was 102.0 MB in the beginning and 101.9 MB in the end (delta: 65.6 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 259.77 ms. Allocated memory is still 125.8 MB. Free memory was 101.9 MB in the beginning and 92.5 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 36.85 ms. Allocated memory is still 125.8 MB. Free memory was 92.5 MB in the beginning and 91.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 433.05 ms. Allocated memory was 125.8 MB in the beginning and 151.0 MB in the end (delta: 25.2 MB). Free memory was 91.1 MB in the beginning and 133.8 MB in the end (delta: -42.7 MB). Peak memory consumption was 17.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2649.17 ms. Allocated memory is still 151.0 MB. Free memory was 133.5 MB in the beginning and 72.1 MB in the end (delta: 61.3 MB). Peak memory consumption was 62.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L19] int i=0, x=0, y=0; VAL [i=0, x=0, y=0] [L20] int n=__VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=1, i=0, n=1, x=0, y=0] [L21] COND FALSE !(!(n>0)) VAL [i=0, n=1, x=0, y=0] [L22] i=0 VAL [i=0, n=1, x=0, y=0] [L22] COND TRUE i