/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 -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/psyco/psyco_accelerometer_1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 21:41:12,934 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 21:41:12,938 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 21:41:12,997 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-10-23 21:41:13,027 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 21:41:13,030 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 21:41:13,032 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 21:41:13,035 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 21:41:13,036 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 21:41:13,040 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 21:41:13,047 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 21:41:13,056 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 21:41:13,058 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 21:41:13,060 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 21:41:13,062 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 21:41:13,075 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 21:41:13,086 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-23 21:41:13,099 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 21:41:13,100 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 21:41:13,100 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 21:41:13,102 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 21:41:13,126 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 21:41:13,126 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 21:41:13,131 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 21:41:13,132 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 21:41:13,132 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 21:41:13,132 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 21:41:13,132 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 21:41:13,133 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 21:41:13,133 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 21:41:13,133 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 21:41:13,134 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 21:41:13,135 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 21:41:13,135 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 21:41:13,135 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 21:41:13,136 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 21:41:13,136 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 21:41:13,136 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 21:41:13,137 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 21:41:13,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 21:41:13,137 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 21:41:13,137 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 21:41:13,137 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 21:41:13,138 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 21:41:13,531 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 21:41:13,561 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 21:41:13,565 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 21:41:13,566 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 21:41:13,572 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 21:41:13,573 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/psyco/psyco_accelerometer_1.c [2020-10-23 21:41:13,652 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e90af1ce/391e9f77c06e4649a77c9176aff74a1c/FLAG4749ffdbb [2020-10-23 21:41:14,614 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 21:41:14,615 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/psyco/psyco_accelerometer_1.c [2020-10-23 21:41:14,662 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e90af1ce/391e9f77c06e4649a77c9176aff74a1c/FLAG4749ffdbb [2020-10-23 21:41:15,159 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e90af1ce/391e9f77c06e4649a77c9176aff74a1c [2020-10-23 21:41:15,163 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 21:41:15,174 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 21:41:15,182 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 21:41:15,182 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 21:41:15,187 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 21:41:15,188 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:41:15" (1/1) ... [2020-10-23 21:41:15,193 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5094b49f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:41:15, skipping insertion in model container [2020-10-23 21:41:15,193 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:41:15" (1/1) ... [2020-10-23 21:41:15,203 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 21:41:15,381 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 21:41:16,147 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 21:41:16,164 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 21:41:16,453 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 21:41:16,472 INFO L208 MainTranslator]: Completed translation [2020-10-23 21:41:16,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:41:16 WrapperNode [2020-10-23 21:41:16,473 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 21:41:16,474 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 21:41:16,474 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 21:41:16,475 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 21:41:16,490 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:41:16" (1/1) ... [2020-10-23 21:41:16,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:41:16" (1/1) ... [2020-10-23 21:41:16,556 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:41:16" (1/1) ... [2020-10-23 21:41:16,557 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:41:16" (1/1) ... [2020-10-23 21:41:16,661 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:41:16" (1/1) ... [2020-10-23 21:41:16,675 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:41:16" (1/1) ... [2020-10-23 21:41:16,699 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:41:16" (1/1) ... [2020-10-23 21:41:16,728 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 21:41:16,732 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 21:41:16,732 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 21:41:16,733 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 21:41:16,733 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:41:16" (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 [2020-10-23 21:41:16,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 21:41:16,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 21:41:16,817 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 21:41:16,817 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 21:41:16,817 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 21:41:16,818 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 21:41:16,818 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 21:41:16,818 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 21:41:16,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 21:41:16,818 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 21:41:16,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 21:41:16,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 21:41:16,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 21:41:16,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 21:41:16,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 21:41:16,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 21:41:19,461 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 21:41:19,461 INFO L298 CfgBuilder]: Removed 21 assume(true) statements. [2020-10-23 21:41:19,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:41:19 BoogieIcfgContainer [2020-10-23 21:41:19,467 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 21:41:19,470 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 21:41:19,470 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 21:41:19,475 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 21:41:19,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 09:41:15" (1/3) ... [2020-10-23 21:41:19,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d3bf203 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:41:19, skipping insertion in model container [2020-10-23 21:41:19,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:41:16" (2/3) ... [2020-10-23 21:41:19,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d3bf203 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:41:19, skipping insertion in model container [2020-10-23 21:41:19,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:41:19" (3/3) ... [2020-10-23 21:41:19,480 INFO L111 eAbstractionObserver]: Analyzing ICFG psyco_accelerometer_1.c [2020-10-23 21:41:19,493 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 21:41:19,500 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 21:41:19,513 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 21:41:19,540 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 21:41:19,540 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 21:41:19,540 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 21:41:19,541 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 21:41:19,541 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 21:41:19,541 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 21:41:19,541 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 21:41:19,541 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 21:41:19,578 INFO L276 IsEmpty]: Start isEmpty. Operand 1159 states. [2020-10-23 21:41:19,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-23 21:41:19,591 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 21:41:19,592 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] [2020-10-23 21:41:19,593 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 21:41:19,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 21:41:19,599 INFO L82 PathProgramCache]: Analyzing trace with hash -732516323, now seen corresponding path program 1 times [2020-10-23 21:41:19,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 21:41:19,610 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1980921854] [2020-10-23 21:41:19,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 21:41:19,685 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 21:41:19,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 21:41:19,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 21:41:19,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 21:41:19,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 21:41:19,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1980921854] [2020-10-23 21:41:19,997 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 21:41:19,997 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 21:41:19,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054211202] [2020-10-23 21:41:20,003 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 21:41:20,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 21:41:20,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 21:41:20,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 21:41:20,023 INFO L87 Difference]: Start difference. First operand 1159 states. Second operand 3 states. [2020-10-23 21:41:20,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 21:41:20,570 INFO L93 Difference]: Finished difference Result 2185 states and 2633 transitions. [2020-10-23 21:41:20,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 21:41:20,572 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 59 [2020-10-23 21:41:20,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 21:41:20,625 INFO L225 Difference]: With dead ends: 2185 [2020-10-23 21:41:20,625 INFO L226 Difference]: Without dead ends: 1043 [2020-10-23 21:41:20,639 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 [2020-10-23 21:41:20,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2020-10-23 21:41:21,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 1043. [2020-10-23 21:41:21,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1043 states. [2020-10-23 21:41:21,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1043 states to 1043 states and 1212 transitions. [2020-10-23 21:41:21,058 INFO L78 Accepts]: Start accepts. Automaton has 1043 states and 1212 transitions. Word has length 59 [2020-10-23 21:41:21,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 21:41:21,059 INFO L481 AbstractCegarLoop]: Abstraction has 1043 states and 1212 transitions. [2020-10-23 21:41:21,059 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 21:41:21,060 INFO L276 IsEmpty]: Start isEmpty. Operand 1043 states and 1212 transitions. [2020-10-23 21:41:21,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-23 21:41:21,066 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 21:41:21,066 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] [2020-10-23 21:41:21,067 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 21:41:21,067 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 21:41:21,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 21:41:21,069 INFO L82 PathProgramCache]: Analyzing trace with hash 2111276910, now seen corresponding path program 1 times [2020-10-23 21:41:21,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 21:41:21,070 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [977108226] [2020-10-23 21:41:21,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 21:41:21,086 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 21:41:21,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 21:41:21,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 21:41:21,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 21:41:21,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 21:41:21,260 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [977108226] [2020-10-23 21:41:21,260 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 21:41:21,260 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 21:41:21,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164847528] [2020-10-23 21:41:21,261 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 21:41:21,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 21:41:21,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 21:41:21,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 21:41:21,263 INFO L87 Difference]: Start difference. First operand 1043 states and 1212 transitions. Second operand 4 states. [2020-10-23 21:41:25,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 21:41:25,133 INFO L93 Difference]: Finished difference Result 2076 states and 2415 transitions. [2020-10-23 21:41:25,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-23 21:41:25,134 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 60 [2020-10-23 21:41:25,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 21:41:25,141 INFO L225 Difference]: With dead ends: 2076 [2020-10-23 21:41:25,141 INFO L226 Difference]: Without dead ends: 1064 [2020-10-23 21:41:25,145 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 21:41:25,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1064 states. [2020-10-23 21:41:25,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1064 to 1064. [2020-10-23 21:41:25,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1064 states. [2020-10-23 21:41:25,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1064 states to 1064 states and 1233 transitions. [2020-10-23 21:41:25,327 INFO L78 Accepts]: Start accepts. Automaton has 1064 states and 1233 transitions. Word has length 60 [2020-10-23 21:41:25,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 21:41:25,327 INFO L481 AbstractCegarLoop]: Abstraction has 1064 states and 1233 transitions. [2020-10-23 21:41:25,328 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 21:41:25,328 INFO L276 IsEmpty]: Start isEmpty. Operand 1064 states and 1233 transitions. [2020-10-23 21:41:25,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-23 21:41:25,330 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 21:41:25,330 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 21:41:25,331 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 21:41:25,331 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 21:41:25,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 21:41:25,332 INFO L82 PathProgramCache]: Analyzing trace with hash 867639045, now seen corresponding path program 1 times [2020-10-23 21:41:25,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 21:41:25,332 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [717245953] [2020-10-23 21:41:25,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 21:41:25,508 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-23 21:41:25,693 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-23 21:41:25,867 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-23 21:41:26,083 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-23 21:41:26,247 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-23 21:41:26,412 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-23 21:41:26,561 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-23 21:41:26,721 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-23 21:41:26,877 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-23 21:41:27,045 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-23 21:41:27,195 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-23 21:41:27,367 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-23 21:41:27,504 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-23 21:41:27,662 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-23 21:41:27,811 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-23 21:41:28,017 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-23 21:41:28,150 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-23 21:41:28,325 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-23 21:41:28,473 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-23 21:41:28,656 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-23 21:41:28,791 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-23 21:41:28,969 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-23 21:41:29,117 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-23 21:41:29,335 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-23 21:41:29,486 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-23 21:41:29,671 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-23 21:41:29,812 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-23 21:41:29,994 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-23 21:41:30,137 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-23 21:41:30,329 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-23 21:41:30,467 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-23 21:41:30,655 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-23 21:41:30,786 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-23 21:41:30,960 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-23 21:41:31,105 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-23 21:41:31,291 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-23 21:41:31,425 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-23 21:41:31,595 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-23 21:41:31,737 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-23 21:41:31,924 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-23 21:41:36,717 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 21:41:43,187 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 21:41:46,877 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 21:41:47,517 WARN L193 SmtUtils]: Spent 593.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 153 [2020-10-23 21:41:48,241 WARN L193 SmtUtils]: Spent 657.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 153 [2020-10-23 21:41:48,918 WARN L193 SmtUtils]: Spent 609.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 153 [2020-10-23 21:41:49,571 WARN L193 SmtUtils]: Spent 603.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 154 [2020-10-23 21:41:50,235 WARN L193 SmtUtils]: Spent 610.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 154 [2020-10-23 21:41:50,919 WARN L193 SmtUtils]: Spent 627.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 154 [2020-10-23 21:41:51,571 WARN L193 SmtUtils]: Spent 601.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 154 [2020-10-23 21:41:52,234 WARN L193 SmtUtils]: Spent 609.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 153 [2020-10-23 21:41:52,880 WARN L193 SmtUtils]: Spent 595.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 153 [2020-10-23 21:41:53,570 WARN L193 SmtUtils]: Spent 608.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 154 [2020-10-23 21:41:54,233 WARN L193 SmtUtils]: Spent 612.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 153 [2020-10-23 21:41:54,886 WARN L193 SmtUtils]: Spent 601.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 153 [2020-10-23 21:41:55,555 WARN L193 SmtUtils]: Spent 616.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 153 [2020-10-23 21:41:56,197 WARN L193 SmtUtils]: Spent 591.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 153 [2020-10-23 21:41:56,890 WARN L193 SmtUtils]: Spent 617.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 154 [2020-10-23 21:41:57,538 WARN L193 SmtUtils]: Spent 595.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 153 [2020-10-23 21:41:58,211 WARN L193 SmtUtils]: Spent 614.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 153 [2020-10-23 21:41:58,890 WARN L193 SmtUtils]: Spent 626.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 154 [2020-10-23 21:41:59,554 WARN L193 SmtUtils]: Spent 605.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 153 [2020-10-23 21:42:00,232 WARN L193 SmtUtils]: Spent 626.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 154 [2020-10-23 21:42:00,928 WARN L193 SmtUtils]: Spent 619.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 154 [2020-10-23 21:42:01,579 WARN L193 SmtUtils]: Spent 596.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 153 [2020-10-23 21:42:02,234 WARN L193 SmtUtils]: Spent 598.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 154 [2020-10-23 21:42:02,888 WARN L193 SmtUtils]: Spent 599.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 153 [2020-10-23 21:42:03,583 WARN L193 SmtUtils]: Spent 613.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 153 [2020-10-23 21:42:04,240 WARN L193 SmtUtils]: Spent 605.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 154 [2020-10-23 21:42:04,900 WARN L193 SmtUtils]: Spent 609.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 154 [2020-10-23 21:42:05,553 WARN L193 SmtUtils]: Spent 598.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 153 [2020-10-23 21:42:06,227 WARN L193 SmtUtils]: Spent 620.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 153 [2020-10-23 21:42:06,888 WARN L193 SmtUtils]: Spent 597.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 153 [2020-10-23 21:42:07,547 WARN L193 SmtUtils]: Spent 606.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 154 [2020-10-23 21:42:08,216 WARN L193 SmtUtils]: Spent 615.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 153 [2020-10-23 21:42:08,895 WARN L193 SmtUtils]: Spent 613.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 153 [2020-10-23 21:42:09,555 WARN L193 SmtUtils]: Spent 604.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 153 [2020-10-23 21:42:10,248 WARN L193 SmtUtils]: Spent 628.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 154 [2020-10-23 21:42:10,916 WARN L193 SmtUtils]: Spent 614.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 154 [2020-10-23 21:42:11,579 WARN L193 SmtUtils]: Spent 600.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 154 [2020-10-23 21:42:12,235 WARN L193 SmtUtils]: Spent 604.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 153 [2020-10-23 21:42:12,902 WARN L193 SmtUtils]: Spent 613.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 154 [2020-10-23 21:42:13,598 WARN L193 SmtUtils]: Spent 642.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 154 [2020-10-23 21:42:14,280 WARN L193 SmtUtils]: Spent 622.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 154 [2020-10-23 21:42:14,936 WARN L193 SmtUtils]: Spent 603.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 153 [2020-10-23 21:42:15,625 WARN L193 SmtUtils]: Spent 630.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 154 [2020-10-23 21:42:16,313 WARN L193 SmtUtils]: Spent 634.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 154 [2020-10-23 21:42:16,978 WARN L193 SmtUtils]: Spent 612.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 153 [2020-10-23 21:42:17,636 WARN L193 SmtUtils]: Spent 605.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 154 [2020-10-23 21:42:18,331 WARN L193 SmtUtils]: Spent 628.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 154 [2020-10-23 21:42:19,011 WARN L193 SmtUtils]: Spent 613.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 154 [2020-10-23 21:42:19,679 WARN L193 SmtUtils]: Spent 612.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 154 [2020-10-23 21:42:20,363 WARN L193 SmtUtils]: Spent 632.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 153 [2020-10-23 21:42:21,036 WARN L193 SmtUtils]: Spent 621.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 153 [2020-10-23 21:42:21,717 WARN L193 SmtUtils]: Spent 629.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 154 [2020-10-23 21:42:22,387 WARN L193 SmtUtils]: Spent 613.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 154 [2020-10-23 21:42:23,053 WARN L193 SmtUtils]: Spent 614.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 154 [2020-10-23 21:42:23,058 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 21:42:28,296 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 21:42:31,699 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 21:42:32,356 WARN L193 SmtUtils]: Spent 611.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 153 [2020-10-23 21:42:33,035 WARN L193 SmtUtils]: Spent 627.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 153 [2020-10-23 21:42:33,731 WARN L193 SmtUtils]: Spent 644.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 153 [2020-10-23 21:42:34,410 WARN L193 SmtUtils]: Spent 625.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 153 [2020-10-23 21:42:35,092 WARN L193 SmtUtils]: Spent 630.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 153 [2020-10-23 21:42:35,768 WARN L193 SmtUtils]: Spent 619.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 153 [2020-10-23 21:42:36,461 WARN L193 SmtUtils]: Spent 639.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 153 [2020-10-23 21:42:37,147 WARN L193 SmtUtils]: Spent 631.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 153 [2020-10-23 21:42:37,838 WARN L193 SmtUtils]: Spent 638.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 153 [2020-10-23 21:42:38,518 WARN L193 SmtUtils]: Spent 626.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 153 [2020-10-23 21:42:39,311 WARN L193 SmtUtils]: Spent 705.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 153 [2020-10-23 21:42:40,026 WARN L193 SmtUtils]: Spent 662.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 153 [2020-10-23 21:42:40,697 WARN L193 SmtUtils]: Spent 621.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 154 [2020-10-23 21:42:41,397 WARN L193 SmtUtils]: Spent 649.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 153 [2020-10-23 21:42:42,089 WARN L193 SmtUtils]: Spent 639.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 154 [2020-10-23 21:42:42,784 WARN L193 SmtUtils]: Spent 641.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 154 [2020-10-23 21:42:43,467 WARN L193 SmtUtils]: Spent 633.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 154 [2020-10-23 21:42:44,144 WARN L193 SmtUtils]: Spent 624.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 154 [2020-10-23 21:42:44,844 WARN L193 SmtUtils]: Spent 633.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 154 [2020-10-23 21:42:45,602 WARN L193 SmtUtils]: Spent 671.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 154 [2020-10-23 21:42:46,294 WARN L193 SmtUtils]: Spent 641.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 154 [2020-10-23 21:42:47,000 WARN L193 SmtUtils]: Spent 654.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 154 [2020-10-23 21:42:47,697 WARN L193 SmtUtils]: Spent 642.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 153 [2020-10-23 21:42:48,398 WARN L193 SmtUtils]: Spent 633.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 154 [2020-10-23 21:42:49,065 WARN L193 SmtUtils]: Spent 613.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 153 [2020-10-23 21:42:49,754 WARN L193 SmtUtils]: Spent 636.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 153 [2020-10-23 21:42:50,453 WARN L193 SmtUtils]: Spent 647.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 154 [2020-10-23 21:42:51,166 WARN L193 SmtUtils]: Spent 647.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 153 [2020-10-23 21:42:51,852 WARN L193 SmtUtils]: Spent 629.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 153 [2020-10-23 21:42:52,538 WARN L193 SmtUtils]: Spent 634.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 153 [2020-10-23 21:42:53,255 WARN L193 SmtUtils]: Spent 666.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 154 [2020-10-23 21:42:53,940 WARN L193 SmtUtils]: Spent 632.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 154 [2020-10-23 21:42:54,629 WARN L193 SmtUtils]: Spent 636.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 154 [2020-10-23 21:42:55,317 WARN L193 SmtUtils]: Spent 635.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 153 [2020-10-23 21:42:56,026 WARN L193 SmtUtils]: Spent 657.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 154 [2020-10-23 21:42:56,728 WARN L193 SmtUtils]: Spent 649.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 153 [2020-10-23 21:42:57,444 WARN L193 SmtUtils]: Spent 660.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 153 [2020-10-23 21:42:58,148 WARN L193 SmtUtils]: Spent 650.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 153 [2020-10-23 21:42:58,848 WARN L193 SmtUtils]: Spent 648.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 153 [2020-10-23 21:42:59,542 WARN L193 SmtUtils]: Spent 641.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 153 [2020-10-23 21:43:00,227 WARN L193 SmtUtils]: Spent 634.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 153 [2020-10-23 21:43:00,925 WARN L193 SmtUtils]: Spent 644.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 153 [2020-10-23 21:43:01,661 WARN L193 SmtUtils]: Spent 670.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 154 [2020-10-23 21:43:02,358 WARN L193 SmtUtils]: Spent 644.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 154 [2020-10-23 21:43:03,072 WARN L193 SmtUtils]: Spent 659.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 154 [2020-10-23 21:43:03,772 WARN L193 SmtUtils]: Spent 640.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 154 [2020-10-23 21:43:04,469 WARN L193 SmtUtils]: Spent 643.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 153 [2020-10-23 21:43:05,156 WARN L193 SmtUtils]: Spent 633.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 153 [2020-10-23 21:43:05,855 WARN L193 SmtUtils]: Spent 647.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 154 [2020-10-23 21:43:06,571 WARN L193 SmtUtils]: Spent 663.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 153 [2020-10-23 21:43:07,279 WARN L193 SmtUtils]: Spent 634.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 154 [2020-10-23 21:43:07,987 WARN L193 SmtUtils]: Spent 655.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 154 [2020-10-23 21:43:08,710 WARN L193 SmtUtils]: Spent 670.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 154 [2020-10-23 21:43:09,420 WARN L193 SmtUtils]: Spent 656.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 153 [2020-10-23 21:43:09,425 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 21:43:15,168 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 21:43:18,719 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 21:43:19,415 WARN L193 SmtUtils]: Spent 644.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 153 [2020-10-23 21:43:20,127 WARN L193 SmtUtils]: Spent 659.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 153 [2020-10-23 21:43:20,866 WARN L193 SmtUtils]: Spent 685.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 153 [2020-10-23 21:43:21,577 WARN L193 SmtUtils]: Spent 654.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 154 [2020-10-23 21:43:22,302 WARN L193 SmtUtils]: Spent 671.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 153 [2020-10-23 21:43:23,000 WARN L193 SmtUtils]: Spent 640.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 153 [2020-10-23 21:43:23,739 WARN L193 SmtUtils]: Spent 685.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 154 [2020-10-23 21:43:24,462 WARN L193 SmtUtils]: Spent 668.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 154 [2020-10-23 21:43:25,185 WARN L193 SmtUtils]: Spent 664.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 154 [2020-10-23 21:43:25,898 WARN L193 SmtUtils]: Spent 661.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 154 [2020-10-23 21:43:26,616 WARN L193 SmtUtils]: Spent 646.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 154 [2020-10-23 21:43:27,336 WARN L193 SmtUtils]: Spent 666.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 153 [2020-10-23 21:43:28,035 WARN L193 SmtUtils]: Spent 645.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 153 [2020-10-23 21:43:28,740 WARN L193 SmtUtils]: Spent 648.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 153 [2020-10-23 21:43:29,482 WARN L193 SmtUtils]: Spent 667.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 153 [2020-10-23 21:43:30,206 WARN L193 SmtUtils]: Spent 672.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 154 [2020-10-23 21:43:30,918 WARN L193 SmtUtils]: Spent 650.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 153 [2020-10-23 21:43:31,652 WARN L193 SmtUtils]: Spent 682.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 154 [2020-10-23 21:43:32,378 WARN L193 SmtUtils]: Spent 661.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 154 [2020-10-23 21:43:33,110 WARN L193 SmtUtils]: Spent 679.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 154 [2020-10-23 21:43:33,823 WARN L193 SmtUtils]: Spent 661.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 154 [2020-10-23 21:43:34,546 WARN L193 SmtUtils]: Spent 670.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 154 [2020-10-23 21:43:35,269 WARN L193 SmtUtils]: Spent 668.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 154 [2020-10-23 21:43:35,986 WARN L193 SmtUtils]: Spent 656.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 153 [2020-10-23 21:43:36,702 WARN L193 SmtUtils]: Spent 663.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 153 [2020-10-23 21:43:37,433 WARN L193 SmtUtils]: Spent 678.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 153 [2020-10-23 21:43:38,141 WARN L193 SmtUtils]: Spent 648.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 153 [2020-10-23 21:43:38,860 WARN L193 SmtUtils]: Spent 666.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 153 [2020-10-23 21:43:39,588 WARN L193 SmtUtils]: Spent 671.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 153 [2020-10-23 21:43:40,314 WARN L193 SmtUtils]: Spent 670.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 154 [2020-10-23 21:43:41,009 WARN L193 SmtUtils]: Spent 637.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 153 [2020-10-23 21:43:41,737 WARN L193 SmtUtils]: Spent 675.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 153 [2020-10-23 21:43:42,472 WARN L193 SmtUtils]: Spent 679.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 153 [2020-10-23 21:43:43,208 WARN L193 SmtUtils]: Spent 683.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 153 [2020-10-23 21:43:43,960 WARN L193 SmtUtils]: Spent 695.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 154 [2020-10-23 21:43:44,692 WARN L193 SmtUtils]: Spent 673.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 153 [2020-10-23 21:43:45,417 WARN L193 SmtUtils]: Spent 671.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 154 [2020-10-23 21:43:46,152 WARN L193 SmtUtils]: Spent 665.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 154 [2020-10-23 21:43:46,862 WARN L193 SmtUtils]: Spent 658.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 154 [2020-10-23 21:43:47,570 WARN L193 SmtUtils]: Spent 654.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 154 [2020-10-23 21:43:48,328 WARN L193 SmtUtils]: Spent 702.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 153 [2020-10-23 21:43:49,087 WARN L193 SmtUtils]: Spent 702.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 154 [2020-10-23 21:43:49,836 WARN L193 SmtUtils]: Spent 694.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 153 [2020-10-23 21:43:50,564 WARN L193 SmtUtils]: Spent 673.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 154 [2020-10-23 21:43:51,318 WARN L193 SmtUtils]: Spent 701.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 154 [2020-10-23 21:43:52,038 WARN L193 SmtUtils]: Spent 665.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 154 [2020-10-23 21:43:52,763 WARN L193 SmtUtils]: Spent 672.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 153 [2020-10-23 21:43:53,510 WARN L193 SmtUtils]: Spent 693.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 153 [2020-10-23 21:43:54,272 WARN L193 SmtUtils]: Spent 705.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 153 [2020-10-23 21:43:55,026 WARN L193 SmtUtils]: Spent 700.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 154 [2020-10-23 21:43:55,767 WARN L193 SmtUtils]: Spent 687.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 154 [2020-10-23 21:43:56,511 WARN L193 SmtUtils]: Spent 689.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 154 [2020-10-23 21:43:57,236 WARN L193 SmtUtils]: Spent 670.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 153 [2020-10-23 21:43:58,000 WARN L193 SmtUtils]: Spent 706.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 154 [2020-10-23 21:43:58,005 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 21:44:01,629 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 21:44:05,145 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 21:44:08,821 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 21:44:12,764 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 21:44:16,407 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 21:44:20,350 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 21:44:24,392 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 21:44:28,057 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 21:44:31,897 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 21:44:35,629 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 21:44:38,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 21:44:38,288 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 21:44:39,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 21:44:39,570 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 21:44:39,804 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 21:44:39,805 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 21:44:39,807 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 21:44:39,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 09:44:39 BoogieIcfgContainer [2020-10-23 21:44:39,849 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 21:44:39,855 INFO L168 Benchmark]: Toolchain (without parser) took 204684.79 ms. Allocated memory was 153.1 MB in the beginning and 1.0 GB in the end (delta: 896.5 MB). Free memory was 119.7 MB in the beginning and 351.6 MB in the end (delta: -231.8 MB). Peak memory consumption was 663.8 MB. Max. memory is 8.0 GB. [2020-10-23 21:44:39,857 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 153.1 MB. Free memory was 128.0 MB in the beginning and 127.9 MB in the end (delta: 78.6 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 21:44:39,859 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1291.49 ms. Allocated memory is still 153.1 MB. Free memory was 119.2 MB in the beginning and 90.6 MB in the end (delta: 28.6 MB). Peak memory consumption was 50.8 MB. Max. memory is 8.0 GB. [2020-10-23 21:44:39,860 INFO L168 Benchmark]: Boogie Preprocessor took 254.05 ms. Allocated memory is still 153.1 MB. Free memory was 90.6 MB in the beginning and 76.4 MB in the end (delta: 14.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2020-10-23 21:44:39,861 INFO L168 Benchmark]: RCFGBuilder took 2734.80 ms. Allocated memory was 153.1 MB in the beginning and 190.8 MB in the end (delta: 37.7 MB). Free memory was 76.4 MB in the beginning and 104.2 MB in the end (delta: -27.8 MB). Peak memory consumption was 67.7 MB. Max. memory is 8.0 GB. [2020-10-23 21:44:39,861 INFO L168 Benchmark]: TraceAbstraction took 200379.45 ms. Allocated memory was 190.8 MB in the beginning and 1.0 GB in the end (delta: 858.8 MB). Free memory was 104.2 MB in the beginning and 351.6 MB in the end (delta: -247.3 MB). Peak memory consumption was 610.4 MB. Max. memory is 8.0 GB. [2020-10-23 21:44:39,867 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 153.1 MB. Free memory was 128.0 MB in the beginning and 127.9 MB in the end (delta: 78.6 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 1291.49 ms. Allocated memory is still 153.1 MB. Free memory was 119.2 MB in the beginning and 90.6 MB in the end (delta: 28.6 MB). Peak memory consumption was 50.8 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 254.05 ms. Allocated memory is still 153.1 MB. Free memory was 90.6 MB in the beginning and 76.4 MB in the end (delta: 14.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * RCFGBuilder took 2734.80 ms. Allocated memory was 153.1 MB in the beginning and 190.8 MB in the end (delta: 37.7 MB). Free memory was 76.4 MB in the beginning and 104.2 MB in the end (delta: -27.8 MB). Peak memory consumption was 67.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 200379.45 ms. Allocated memory was 190.8 MB in the beginning and 1.0 GB in the end (delta: 858.8 MB). Free memory was 104.2 MB in the beginning and 351.6 MB in the end (delta: -247.3 MB). Peak memory consumption was 610.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 4]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L7] int m_init = 1; [L8] int m_disconnect = 2; [L9] int m_getValueX = 3; [L10] int m_getValueY = 4; [L11] int m_Accelerometer = 5; [L12] int m_update = 6; [L13] int m_dataReceived = 7; [L14] int m_connect_1 = 8; [L15] int m_connect_2 = 9; [L20] int q = 0; [L21] int method_id; [L24] int this_m_conn = 0; [L25] int this_m_sensitivity = 100; [L26] int this_m_samples = 200; [L27] int this_m_delta = 1; [L28] int this_m_accX = 0; [L29] int this_m_sensorInfo = 0; [L30] int this_m_conn_data_listener = 0; [L31] int this_m_accY = 0; [L34] COND TRUE 1 [L37] int P1=__VERIFIER_nondet_int(); [L38] int P2=__VERIFIER_nondet_int(); [L39] int P3=__VERIFIER_nondet_int(); [L40] _Bool P4=__VERIFIER_nondet_int(); [L41] _Bool P5=__VERIFIER_nondet_int(); [L42] _Bool P6=__VERIFIER_nondet_int(); [L46] COND TRUE q == 0 [L47] COND TRUE __VERIFIER_nondet_int() [L51] method_id = 5 [L53] COND FALSE !(0) [L57] q = 2 [L59] this_m_conn=0 [L59] this_m_samples=200 [L59] this_m_sensitivity=100 [L59] this_m_accX=0 [L59] this_m_accY=0 [L59] this_m_delta=1 [L59] this_m_sensorInfo=0 [L59] this_m_conn_data_listener=0 [L34] COND TRUE 1 [L37] int P1=__VERIFIER_nondet_int(); [L38] int P2=__VERIFIER_nondet_int(); [L39] int P3=__VERIFIER_nondet_int(); [L40] _Bool P4=__VERIFIER_nondet_int(); [L41] _Bool P5=__VERIFIER_nondet_int(); [L42] _Bool P6=__VERIFIER_nondet_int(); [L46] COND FALSE !(q == 0) [L66] COND TRUE q == 1 [L67] COND TRUE __VERIFIER_nondet_int() [L71] method_id = 2 [L73] COND TRUE (this_m_conn != 0) [L1256] CALL reach_error() [L4] __assert_fail("0", "psyco_accelerometer_1.c", 4, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 1159 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 200.2s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2445 SDtfs, 2429 SDslu, 29 SDs, 0 SdLazy, 1206 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1159occurred 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: 0.5s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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 incorrect! Received shutdown request...