/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loops/array-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 13:58:32,477 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 13:58:32,480 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 13:58:32,492 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 13:58:32,493 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 13:58:32,494 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 13:58:32,495 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 13:58:32,496 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 13:58:32,498 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 13:58:32,499 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 13:58:32,500 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 13:58:32,501 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 13:58:32,502 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 13:58:32,503 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 13:58:32,504 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 13:58:32,505 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 13:58:32,506 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 13:58:32,507 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 13:58:32,509 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 13:58:32,511 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 13:58:32,513 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 13:58:32,514 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 13:58:32,515 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 13:58:32,516 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 13:58:32,519 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-07 13:58:32,527 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 13:58:32,528 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 13:58:32,529 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 13:58:32,530 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-07 13:58:32,539 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 13:58:32,540 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 13:58:32,541 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 13:58:32,541 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 13:58:32,541 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 13:58:32,542 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 13:58:32,542 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 13:58:32,542 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 13:58:32,542 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 13:58:32,542 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 13:58:32,543 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 13:58:32,543 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 13:58:32,543 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 13:58:32,543 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 13:58:32,543 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 13:58:32,544 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 13:58:32,544 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 13:58:32,544 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 13:58:32,544 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 13:58:32,544 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 13:58:32,545 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 13:58:32,545 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 13:58:32,545 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 13:58:32,833 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 13:58:32,855 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 13:58:32,857 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 13:58:32,859 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 13:58:32,859 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 13:58:32,860 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/array-1.c [2020-07-07 13:58:32,945 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e8a4aa7a/0000a171091845cc827bae33ab647ccc/FLAG2a7d4305a [2020-07-07 13:58:33,402 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 13:58:33,403 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/array-1.c [2020-07-07 13:58:33,409 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e8a4aa7a/0000a171091845cc827bae33ab647ccc/FLAG2a7d4305a [2020-07-07 13:58:33,829 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e8a4aa7a/0000a171091845cc827bae33ab647ccc [2020-07-07 13:58:33,839 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 13:58:33,842 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 13:58:33,843 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 13:58:33,845 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 13:58:33,849 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 13:58:33,850 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:58:33" (1/1) ... [2020-07-07 13:58:33,853 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3aae0043 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:58:33, skipping insertion in model container [2020-07-07 13:58:33,853 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:58:33" (1/1) ... [2020-07-07 13:58:33,863 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 13:58:33,883 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 13:58:34,159 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:58:34,166 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 13:58:34,201 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:58:34,225 INFO L208 MainTranslator]: Completed translation [2020-07-07 13:58:34,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:58:34 WrapperNode [2020-07-07 13:58:34,226 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 13:58:34,227 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 13:58:34,228 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 13:58:34,228 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 13:58:34,361 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:58:34" (1/1) ... [2020-07-07 13:58:34,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:58:34" (1/1) ... [2020-07-07 13:58:34,370 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:58:34" (1/1) ... [2020-07-07 13:58:34,371 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:58:34" (1/1) ... [2020-07-07 13:58:34,387 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:58:34" (1/1) ... [2020-07-07 13:58:34,392 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:58:34" (1/1) ... [2020-07-07 13:58:34,394 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:58:34" (1/1) ... [2020-07-07 13:58:34,402 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 13:58:34,402 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 13:58:34,402 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 13:58:34,403 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 13:58:34,405 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:58:34" (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 [2020-07-07 13:58:34,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 13:58:34,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 13:58:34,484 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-07 13:58:34,484 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 13:58:34,484 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 13:58:34,484 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-07 13:58:34,485 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 13:58:34,485 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 13:58:34,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 13:58:34,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 13:58:34,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 13:58:34,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 13:58:34,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 13:58:34,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 13:58:34,727 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 13:58:34,727 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-07 13:58:34,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:58:34 BoogieIcfgContainer [2020-07-07 13:58:34,733 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 13:58:34,734 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 13:58:34,734 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 13:58:34,737 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 13:58:34,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 01:58:33" (1/3) ... [2020-07-07 13:58:34,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@648428b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:58:34, skipping insertion in model container [2020-07-07 13:58:34,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:58:34" (2/3) ... [2020-07-07 13:58:34,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@648428b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:58:34, skipping insertion in model container [2020-07-07 13:58:34,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:58:34" (3/3) ... [2020-07-07 13:58:34,742 INFO L109 eAbstractionObserver]: Analyzing ICFG array-1.c [2020-07-07 13:58:34,755 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 13:58:34,764 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 13:58:34,780 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 13:58:34,806 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 13:58:34,807 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 13:58:34,807 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 13:58:34,807 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 13:58:34,807 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 13:58:34,807 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 13:58:34,807 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 13:58:34,808 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 13:58:34,827 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2020-07-07 13:58:34,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-07-07 13:58:34,836 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:58:34,837 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] [2020-07-07 13:58:34,838 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:58:34,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:58:34,845 INFO L82 PathProgramCache]: Analyzing trace with hash 683487989, now seen corresponding path program 1 times [2020-07-07 13:58:34,854 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:58:34,854 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1176655525] [2020-07-07 13:58:34,854 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:58:35,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:58:35,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:58:35,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:58:35,255 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:58:35,257 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1176655525] [2020-07-07 13:58:35,259 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:58:35,260 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-07 13:58:35,260 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902965726] [2020-07-07 13:58:35,266 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 13:58:35,266 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:58:35,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 13:58:35,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-07 13:58:35,284 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 5 states. [2020-07-07 13:58:35,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:58:35,521 INFO L93 Difference]: Finished difference Result 75 states and 82 transitions. [2020-07-07 13:58:35,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 13:58:35,524 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-07-07 13:58:35,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:58:35,534 INFO L225 Difference]: With dead ends: 75 [2020-07-07 13:58:35,534 INFO L226 Difference]: Without dead ends: 49 [2020-07-07 13:58:35,540 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-07 13:58:35,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-07-07 13:58:35,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 37. [2020-07-07 13:58:35,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-07-07 13:58:35,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions. [2020-07-07 13:58:35,593 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 22 [2020-07-07 13:58:35,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:58:35,593 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions. [2020-07-07 13:58:35,593 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 13:58:35,594 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2020-07-07 13:58:35,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-07-07 13:58:35,595 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:58:35,595 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] [2020-07-07 13:58:35,596 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 13:58:35,596 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:58:35,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:58:35,597 INFO L82 PathProgramCache]: Analyzing trace with hash 403649603, now seen corresponding path program 1 times [2020-07-07 13:58:35,597 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:58:35,598 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [620688959] [2020-07-07 13:58:35,598 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:58:35,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:58:36,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:58:36,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:58:36,321 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:58:36,322 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [620688959] [2020-07-07 13:58:36,322 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:58:36,322 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-07 13:58:36,323 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166992944] [2020-07-07 13:58:36,326 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-07 13:58:36,326 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:58:36,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-07 13:58:36,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-07-07 13:58:36,329 INFO L87 Difference]: Start difference. First operand 37 states and 38 transitions. Second operand 11 states. [2020-07-07 13:58:36,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:58:36,708 INFO L93 Difference]: Finished difference Result 61 states and 63 transitions. [2020-07-07 13:58:36,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-07 13:58:36,709 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 32 [2020-07-07 13:58:36,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:58:36,711 INFO L225 Difference]: With dead ends: 61 [2020-07-07 13:58:36,712 INFO L226 Difference]: Without dead ends: 55 [2020-07-07 13:58:36,716 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2020-07-07 13:58:36,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-07-07 13:58:36,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 47. [2020-07-07 13:58:36,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-07-07 13:58:36,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 49 transitions. [2020-07-07 13:58:36,745 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 49 transitions. Word has length 32 [2020-07-07 13:58:36,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:58:36,745 INFO L479 AbstractCegarLoop]: Abstraction has 47 states and 49 transitions. [2020-07-07 13:58:36,745 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-07 13:58:36,746 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 49 transitions. [2020-07-07 13:58:36,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-07-07 13:58:36,747 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:58:36,748 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] [2020-07-07 13:58:36,748 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 13:58:36,748 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:58:36,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:58:36,749 INFO L82 PathProgramCache]: Analyzing trace with hash -913737726, now seen corresponding path program 1 times [2020-07-07 13:58:36,749 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:58:36,750 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1200155693] [2020-07-07 13:58:36,751 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:58:36,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:58:37,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:58:37,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:58:37,334 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:58:37,336 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1200155693] [2020-07-07 13:58:37,336 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:58:37,337 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-07 13:58:37,337 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114387899] [2020-07-07 13:58:37,338 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-07 13:58:37,338 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:58:37,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-07 13:58:37,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-07-07 13:58:37,340 INFO L87 Difference]: Start difference. First operand 47 states and 49 transitions. Second operand 11 states. [2020-07-07 13:58:37,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:58:37,626 INFO L93 Difference]: Finished difference Result 63 states and 65 transitions. [2020-07-07 13:58:37,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-07 13:58:37,626 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 35 [2020-07-07 13:58:37,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:58:37,627 INFO L225 Difference]: With dead ends: 63 [2020-07-07 13:58:37,628 INFO L226 Difference]: Without dead ends: 57 [2020-07-07 13:58:37,629 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2020-07-07 13:58:37,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-07-07 13:58:37,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 51. [2020-07-07 13:58:37,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-07-07 13:58:37,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 53 transitions. [2020-07-07 13:58:37,643 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 53 transitions. Word has length 35 [2020-07-07 13:58:37,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:58:37,643 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 53 transitions. [2020-07-07 13:58:37,643 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-07 13:58:37,644 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 53 transitions. [2020-07-07 13:58:37,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-07-07 13:58:37,645 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:58:37,645 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-07-07 13:58:37,646 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 13:58:37,646 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:58:37,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:58:37,646 INFO L82 PathProgramCache]: Analyzing trace with hash -884839407, now seen corresponding path program 2 times [2020-07-07 13:58:37,646 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:58:37,647 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2012289274] [2020-07-07 13:58:37,647 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:58:37,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:58:37,738 ERROR L253 erpolLogProxyWrapper]: Interpolant 28 not inductive [2020-07-07 13:58:37,745 ERROR L276 FreeRefinementEngine]: Caught unknown exception: generated interpolants did not pass sanity check [2020-07-07 13:58:37,746 WARN L341 FreeRefinementEngine]: Global settings require throwing the following exception [2020-07-07 13:58:37,746 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 13:58:37,747 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: generated interpolants did not pass sanity check at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:222) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:884) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:385) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:332) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:332) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:191) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:166) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:337) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:239) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:108) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.Interpolator.generateInterpolantsCraigNested(Interpolator.java:146) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.Interpolator.generateInterpolants(Interpolator.java:102) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.acceleratedInterpolationCore(AcceleratedInterpolation.java:266) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:184) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:144) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) 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:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) 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:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-07 13:58:37,755 INFO L168 Benchmark]: Toolchain (without parser) took 3910.21 ms. Allocated memory was 145.2 MB in the beginning and 244.3 MB in the end (delta: 99.1 MB). Free memory was 102.4 MB in the beginning and 166.7 MB in the end (delta: -64.3 MB). Peak memory consumption was 34.8 MB. Max. memory is 7.1 GB. [2020-07-07 13:58:37,758 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 145.2 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 13:58:37,761 INFO L168 Benchmark]: CACSL2BoogieTranslator took 383.93 ms. Allocated memory is still 145.2 MB. Free memory was 101.9 MB in the beginning and 91.7 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2020-07-07 13:58:37,762 INFO L168 Benchmark]: Boogie Preprocessor took 174.44 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 91.7 MB in the beginning and 180.5 MB in the end (delta: -88.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-07-07 13:58:37,763 INFO L168 Benchmark]: RCFGBuilder took 330.93 ms. Allocated memory is still 202.9 MB. Free memory was 180.5 MB in the beginning and 164.9 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 7.1 GB. [2020-07-07 13:58:37,764 INFO L168 Benchmark]: TraceAbstraction took 3015.40 ms. Allocated memory was 202.9 MB in the beginning and 244.3 MB in the end (delta: 41.4 MB). Free memory was 164.3 MB in the beginning and 166.7 MB in the end (delta: -2.4 MB). Peak memory consumption was 39.0 MB. Max. memory is 7.1 GB. [2020-07-07 13:58:37,768 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 145.2 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 383.93 ms. Allocated memory is still 145.2 MB. Free memory was 101.9 MB in the beginning and 91.7 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 174.44 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 91.7 MB in the beginning and 180.5 MB in the end (delta: -88.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 330.93 ms. Allocated memory is still 202.9 MB. Free memory was 180.5 MB in the beginning and 164.9 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3015.40 ms. Allocated memory was 202.9 MB in the beginning and 244.3 MB in the end (delta: 41.4 MB). Free memory was 164.3 MB in the beginning and 166.7 MB in the end (delta: -2.4 MB). Peak memory consumption was 39.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: generated interpolants did not pass sanity check de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: generated interpolants did not pass sanity check: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:222) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...