/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/loop-new/half.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 22:01:36,100 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 22:01:36,104 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 22:01:36,166 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-10-23 22:01:36,267 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 22:01:36,268 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 22:01:36,268 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 22:01:36,270 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 22:01:36,287 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 22:01:36,288 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 22:01:36,293 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 22:01:36,293 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 22:01:36,293 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 22:01:36,294 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 22:01:36,294 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 22:01:36,294 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 22:01:36,294 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 22:01:36,295 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 22:01:36,296 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 22:01:36,296 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 22:01:36,296 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 22:01:36,296 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 22:01:36,297 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 22:01:36,297 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 22:01:36,297 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 22:01:36,297 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 22:01:36,298 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 22:01:36,298 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 22:01:36,298 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 22:01:36,298 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 22:01:36,298 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 22:01:36,734 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 22:01:36,772 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 22:01:36,776 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 22:01:36,777 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 22:01:36,778 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 22:01:36,779 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-new/half.i [2020-10-23 22:01:36,856 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2e3b7c86/2488308a931a4c27b2bcb413d60e009d/FLAGa8c4bfef1 [2020-10-23 22:01:37,414 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 22:01:37,415 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-new/half.i [2020-10-23 22:01:37,422 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2e3b7c86/2488308a931a4c27b2bcb413d60e009d/FLAGa8c4bfef1 [2020-10-23 22:01:37,754 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2e3b7c86/2488308a931a4c27b2bcb413d60e009d [2020-10-23 22:01:37,757 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 22:01:37,764 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 22:01:37,766 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 22:01:37,766 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 22:01:37,770 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 22:01:37,771 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 10:01:37" (1/1) ... [2020-10-23 22:01:37,775 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@782ae364 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:01:37, skipping insertion in model container [2020-10-23 22:01:37,775 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 10:01:37" (1/1) ... [2020-10-23 22:01:37,784 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 22:01:37,801 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 22:01:38,024 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 22:01:38,034 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 22:01:38,052 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 22:01:38,068 INFO L208 MainTranslator]: Completed translation [2020-10-23 22:01:38,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:01:38 WrapperNode [2020-10-23 22:01:38,069 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 22:01:38,070 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 22:01:38,070 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 22:01:38,070 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 22:01:38,080 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:01:38" (1/1) ... [2020-10-23 22:01:38,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:01:38" (1/1) ... [2020-10-23 22:01:38,087 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:01:38" (1/1) ... [2020-10-23 22:01:38,087 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:01:38" (1/1) ... [2020-10-23 22:01:38,112 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:01:38" (1/1) ... [2020-10-23 22:01:38,116 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:01:38" (1/1) ... [2020-10-23 22:01:38,122 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:01:38" (1/1) ... [2020-10-23 22:01:38,126 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 22:01:38,128 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 22:01:38,128 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 22:01:38,128 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 22:01:38,129 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:01:38" (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 22:01:38,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 22:01:38,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 22:01:38,216 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 22:01:38,216 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-23 22:01:38,216 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-23 22:01:38,217 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 22:01:38,217 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 22:01:38,217 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 22:01:38,217 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-23 22:01:38,217 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-23 22:01:38,217 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 22:01:38,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 22:01:38,218 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-23 22:01:38,218 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-23 22:01:38,218 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 22:01:38,218 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 22:01:38,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 22:01:38,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 22:01:38,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 22:01:38,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 22:01:38,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 22:01:38,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 22:01:38,711 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 22:01:38,713 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-23 22:01:38,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 10:01:38 BoogieIcfgContainer [2020-10-23 22:01:38,715 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 22:01:38,719 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 22:01:38,719 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 22:01:38,722 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 22:01:38,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 10:01:37" (1/3) ... [2020-10-23 22:01:38,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c3d1188 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 10:01:38, skipping insertion in model container [2020-10-23 22:01:38,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:01:38" (2/3) ... [2020-10-23 22:01:38,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c3d1188 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 10:01:38, skipping insertion in model container [2020-10-23 22:01:38,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 10:01:38" (3/3) ... [2020-10-23 22:01:38,726 INFO L111 eAbstractionObserver]: Analyzing ICFG half.i [2020-10-23 22:01:38,740 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 22:01:38,751 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 22:01:38,764 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 22:01:38,804 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 22:01:38,804 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 22:01:38,804 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 22:01:38,804 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 22:01:38,804 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 22:01:38,805 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 22:01:38,805 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 22:01:38,805 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 22:01:38,831 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-10-23 22:01:38,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-23 22:01:38,846 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 22:01:38,848 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] [2020-10-23 22:01:38,848 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 22:01:38,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 22:01:38,859 INFO L82 PathProgramCache]: Analyzing trace with hash 340170805, now seen corresponding path program 1 times [2020-10-23 22:01:38,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 22:01:38,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1066595237] [2020-10-23 22:01:38,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 22:01:38,962 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 22:01:39,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 22:01:39,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 22:01:39,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 22:01:39,200 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 22:01:39,202 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1066595237] [2020-10-23 22:01:39,204 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 22:01:39,205 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 22:01:39,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717047307] [2020-10-23 22:01:39,210 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 22:01:39,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 22:01:39,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 22:01:39,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 22:01:39,228 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 3 states. [2020-10-23 22:01:39,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 22:01:39,314 INFO L93 Difference]: Finished difference Result 59 states and 67 transitions. [2020-10-23 22:01:39,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 22:01:39,316 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-10-23 22:01:39,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 22:01:39,327 INFO L225 Difference]: With dead ends: 59 [2020-10-23 22:01:39,327 INFO L226 Difference]: Without dead ends: 33 [2020-10-23 22:01:39,331 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 22:01:39,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-23 22:01:39,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-10-23 22:01:39,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-23 22:01:39,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2020-10-23 22:01:39,389 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 25 [2020-10-23 22:01:39,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 22:01:39,389 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2020-10-23 22:01:39,389 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 22:01:39,390 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2020-10-23 22:01:39,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-23 22:01:39,391 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 22:01:39,391 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] [2020-10-23 22:01:39,392 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 22:01:39,392 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 22:01:39,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 22:01:39,393 INFO L82 PathProgramCache]: Analyzing trace with hash -974986203, now seen corresponding path program 1 times [2020-10-23 22:01:39,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 22:01:39,394 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1685271493] [2020-10-23 22:01:39,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 22:01:39,398 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 22:01:39,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 22:01:39,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 22:01:39,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 22:01:39,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 22:01:39,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1685271493] [2020-10-23 22:01:39,661 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 22:01:39,661 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-23 22:01:39,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985386670] [2020-10-23 22:01:39,662 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-23 22:01:39,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 22:01:39,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-23 22:01:39,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-23 22:01:39,664 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 8 states. [2020-10-23 22:01:40,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 22:01:40,081 INFO L93 Difference]: Finished difference Result 55 states and 59 transitions. [2020-10-23 22:01:40,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-23 22:01:40,082 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2020-10-23 22:01:40,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 22:01:40,084 INFO L225 Difference]: With dead ends: 55 [2020-10-23 22:01:40,084 INFO L226 Difference]: Without dead ends: 37 [2020-10-23 22:01:40,087 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2020-10-23 22:01:40,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-23 22:01:40,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2020-10-23 22:01:40,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-23 22:01:40,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2020-10-23 22:01:40,099 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 25 [2020-10-23 22:01:40,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 22:01:40,099 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2020-10-23 22:01:40,099 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-23 22:01:40,099 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2020-10-23 22:01:40,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-23 22:01:40,101 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 22:01:40,101 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] [2020-10-23 22:01:40,101 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 22:01:40,101 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 22:01:40,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 22:01:40,102 INFO L82 PathProgramCache]: Analyzing trace with hash -27000676, now seen corresponding path program 1 times [2020-10-23 22:01:40,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 22:01:40,103 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [924329236] [2020-10-23 22:01:40,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 22:01:40,211 INFO L120 Accelerator]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2020-10-23 22:01:40,213 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 22:01:40,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 22:01:40,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 22:01:40,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 22:01:40,437 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 22:01:40,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [924329236] [2020-10-23 22:01:40,439 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 22:01:40,439 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 22:01:40,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460596330] [2020-10-23 22:01:40,440 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 22:01:40,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 22:01:40,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 22:01:40,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-23 22:01:40,443 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand 10 states. [2020-10-23 22:01:40,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 22:01:40,887 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2020-10-23 22:01:40,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 22:01:40,887 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 33 [2020-10-23 22:01:40,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 22:01:40,889 INFO L225 Difference]: With dead ends: 49 [2020-10-23 22:01:40,889 INFO L226 Difference]: Without dead ends: 42 [2020-10-23 22:01:40,890 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2020-10-23 22:01:40,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-23 22:01:40,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-10-23 22:01:40,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-23 22:01:40,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2020-10-23 22:01:40,901 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 33 [2020-10-23 22:01:40,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 22:01:40,902 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2020-10-23 22:01:40,902 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 22:01:40,902 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2020-10-23 22:01:40,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-23 22:01:40,903 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 22:01:40,904 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-23 22:01:40,904 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 22:01:40,904 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 22:01:40,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 22:01:40,905 INFO L82 PathProgramCache]: Analyzing trace with hash 689235082, now seen corresponding path program 1 times [2020-10-23 22:01:40,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 22:01:40,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1553048364] [2020-10-23 22:01:40,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 22:01:43,971 WARN L193 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2020-10-23 22:01:43,988 INFO L120 Accelerator]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2020-10-23 22:01:43,991 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 22:01:44,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 22:01:44,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 22:01:44,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 22:01:44,410 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 22:01:44,410 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1553048364] [2020-10-23 22:01:44,411 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 22:01:44,411 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-23 22:01:44,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709234047] [2020-10-23 22:01:44,412 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-23 22:01:44,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 22:01:44,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-23 22:01:44,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2020-10-23 22:01:44,417 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand 15 states. [2020-10-23 22:01:45,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 22:01:45,415 INFO L93 Difference]: Finished difference Result 70 states and 75 transitions. [2020-10-23 22:01:45,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-23 22:01:45,416 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 38 [2020-10-23 22:01:45,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 22:01:45,417 INFO L225 Difference]: With dead ends: 70 [2020-10-23 22:01:45,418 INFO L226 Difference]: Without dead ends: 52 [2020-10-23 22:01:45,419 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=156, Invalid=900, Unknown=0, NotChecked=0, Total=1056 [2020-10-23 22:01:45,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-23 22:01:45,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 48. [2020-10-23 22:01:45,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-23 22:01:45,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 50 transitions. [2020-10-23 22:01:45,433 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 50 transitions. Word has length 38 [2020-10-23 22:01:45,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 22:01:45,433 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 50 transitions. [2020-10-23 22:01:45,433 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-23 22:01:45,433 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 50 transitions. [2020-10-23 22:01:45,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-23 22:01:45,435 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 22:01:45,435 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2020-10-23 22:01:45,435 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 22:01:45,435 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 22:01:45,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 22:01:45,436 INFO L82 PathProgramCache]: Analyzing trace with hash -1902785535, now seen corresponding path program 2 times [2020-10-23 22:01:45,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 22:01:45,437 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [856561246] [2020-10-23 22:01:45,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 22:01:46,235 ERROR L275 FreeRefinementEngine]: Caught unknown exception: No quantified variables given [2020-10-23 22:01:46,236 WARN L340 FreeRefinementEngine]: Global settings require throwing the following exception [2020-10-23 22:01:46,236 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: No quantified variables given at de.uni_freiburg.informatik.ultimate.logic.NoopScript.quantifier(NoopScript.java:505) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.quantifier(WrapperScript.java:266) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.quantifier(WrapperScript.java:266) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.fastupr.FastUPRCore.checkForAll(FastUPRCore.java:370) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.fastupr.FastUPRCore.periodLoop(FastUPRCore.java:179) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.fastupr.FastUPRCore.prefixLoop(FastUPRCore.java:154) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.fastupr.FastUPRCore.(FastUPRCore.java:145) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.loopaccelerator.Accelerator.fastUprAcceleration(Accelerator.java:109) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.loopaccelerator.Accelerator.accelerateLoop(Accelerator.java:89) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.acceleratedInterpolationCore(AcceleratedInterpolation.java:285) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:227) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:147) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:241) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:341) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:182) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:134) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-10-23 22:01:46,241 INFO L168 Benchmark]: Toolchain (without parser) took 8481.95 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 109.2 MB in the beginning and 150.2 MB in the end (delta: -41.0 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 22:01:46,242 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory was 125.5 MB in the beginning and 125.4 MB in the end (delta: 102.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 22:01:46,243 INFO L168 Benchmark]: CACSL2BoogieTranslator took 303.04 ms. Allocated memory is still 151.0 MB. Free memory was 108.5 MB in the beginning and 127.8 MB in the end (delta: -19.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. [2020-10-23 22:01:46,244 INFO L168 Benchmark]: Boogie Preprocessor took 56.21 ms. Allocated memory is still 151.0 MB. Free memory was 127.8 MB in the beginning and 134.9 MB in the end (delta: -7.1 MB). Peak memory consumption was 4.4 MB. Max. memory is 8.0 GB. [2020-10-23 22:01:46,245 INFO L168 Benchmark]: RCFGBuilder took 587.24 ms. Allocated memory is still 151.0 MB. Free memory was 134.9 MB in the beginning and 119.6 MB in the end (delta: 15.3 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2020-10-23 22:01:46,246 INFO L168 Benchmark]: TraceAbstraction took 7521.27 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 119.2 MB in the beginning and 150.2 MB in the end (delta: -31.0 MB). Peak memory consumption was 187.6 kB. Max. memory is 8.0 GB. [2020-10-23 22:01:46,250 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 151.0 MB. Free memory was 125.5 MB in the beginning and 125.4 MB in the end (delta: 102.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 303.04 ms. Allocated memory is still 151.0 MB. Free memory was 108.5 MB in the beginning and 127.8 MB in the end (delta: -19.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 56.21 ms. Allocated memory is still 151.0 MB. Free memory was 127.8 MB in the beginning and 134.9 MB in the end (delta: -7.1 MB). Peak memory consumption was 4.4 MB. Max. memory is 8.0 GB. * RCFGBuilder took 587.24 ms. Allocated memory is still 151.0 MB. Free memory was 134.9 MB in the beginning and 119.6 MB in the end (delta: 15.3 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 7521.27 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 119.2 MB in the beginning and 150.2 MB in the end (delta: -31.0 MB). Peak memory consumption was 187.6 kB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: No quantified variables given de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: No quantified variables given: de.uni_freiburg.informatik.ultimate.logic.NoopScript.quantifier(NoopScript.java:505) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...