/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy CAMEL_NO_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/invert_string-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-19 21:45:47,018 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-19 21:45:47,020 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-19 21:45:47,032 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-19 21:45:47,032 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-19 21:45:47,033 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-19 21:45:47,035 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-19 21:45:47,036 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-19 21:45:47,038 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-19 21:45:47,039 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-19 21:45:47,040 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-19 21:45:47,041 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-19 21:45:47,041 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-19 21:45:47,042 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-19 21:45:47,043 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-19 21:45:47,044 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-19 21:45:47,045 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-19 21:45:47,046 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-19 21:45:47,048 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-19 21:45:47,050 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-19 21:45:47,051 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-19 21:45:47,052 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-19 21:45:47,053 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-19 21:45:47,054 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-19 21:45:47,057 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-19 21:45:47,064 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-19 21:45:47,065 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-19 21:45:47,065 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-19 21:45:47,066 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-19 21:45:47,080 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-19 21:45:47,080 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-19 21:45:47,082 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-19 21:45:47,082 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-19 21:45:47,082 INFO L138 SettingsManager]: * Use SBE=true [2020-07-19 21:45:47,082 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-19 21:45:47,082 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-19 21:45:47,083 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-19 21:45:47,083 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-19 21:45:47,083 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-19 21:45:47,083 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-19 21:45:47,083 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-19 21:45:47,084 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-19 21:45:47,084 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-19 21:45:47,084 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-19 21:45:47,084 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-19 21:45:47,084 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-19 21:45:47,085 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-19 21:45:47,085 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-19 21:45:47,085 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-19 21:45:47,085 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-19 21:45:47,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 21:45:47,086 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-19 21:45:47,086 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-19 21:45:47,086 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-19 21:45:47,086 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-19 21:45:47,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-19 21:45:47,087 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-19 21:45:47,087 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-19 21:45:47,087 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_NO_AM [2020-07-19 21:45:47,381 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-19 21:45:47,392 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-19 21:45:47,394 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-19 21:45:47,396 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-19 21:45:47,396 INFO L275 PluginConnector]: CDTParser initialized [2020-07-19 21:45:47,397 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/invert_string-1.c [2020-07-19 21:45:47,462 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e637bcc86/4cf1a6f1cb684571aadeab9c58cd2b51/FLAGc67c939fe [2020-07-19 21:45:47,866 INFO L306 CDTParser]: Found 1 translation units. [2020-07-19 21:45:47,867 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/invert_string-1.c [2020-07-19 21:45:47,872 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e637bcc86/4cf1a6f1cb684571aadeab9c58cd2b51/FLAGc67c939fe [2020-07-19 21:45:48,210 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e637bcc86/4cf1a6f1cb684571aadeab9c58cd2b51 [2020-07-19 21:45:48,218 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-19 21:45:48,221 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-19 21:45:48,221 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-19 21:45:48,222 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-19 21:45:48,225 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-19 21:45:48,226 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 09:45:48" (1/1) ... [2020-07-19 21:45:48,229 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bfe3aad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:45:48, skipping insertion in model container [2020-07-19 21:45:48,229 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 09:45:48" (1/1) ... [2020-07-19 21:45:48,236 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-19 21:45:48,252 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-19 21:45:48,422 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 21:45:48,426 INFO L203 MainTranslator]: Completed pre-run [2020-07-19 21:45:48,454 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 21:45:48,479 INFO L208 MainTranslator]: Completed translation [2020-07-19 21:45:48,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:45:48 WrapperNode [2020-07-19 21:45:48,479 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-19 21:45:48,480 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-19 21:45:48,480 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-19 21:45:48,481 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-19 21:45:48,496 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:45:48" (1/1) ... [2020-07-19 21:45:48,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:45:48" (1/1) ... [2020-07-19 21:45:48,629 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:45:48" (1/1) ... [2020-07-19 21:45:48,630 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:45:48" (1/1) ... [2020-07-19 21:45:48,650 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:45:48" (1/1) ... [2020-07-19 21:45:48,657 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:45:48" (1/1) ... [2020-07-19 21:45:48,665 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:45:48" (1/1) ... [2020-07-19 21:45:48,668 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-19 21:45:48,668 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-19 21:45:48,668 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-19 21:45:48,669 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-19 21:45:48,670 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:45:48" (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 [2020-07-19 21:45:48,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-19 21:45:48,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-19 21:45:48,755 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-19 21:45:48,755 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-19 21:45:48,755 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-19 21:45:48,755 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-19 21:45:48,755 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-19 21:45:48,755 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-07-19 21:45:48,756 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-07-19 21:45:48,756 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-19 21:45:48,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-19 21:45:48,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-19 21:45:48,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-19 21:45:48,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-19 21:45:48,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-19 21:45:48,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-19 21:45:49,141 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-19 21:45:49,142 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-07-19 21:45:49,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 09:45:49 BoogieIcfgContainer [2020-07-19 21:45:49,145 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-19 21:45:49,147 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-19 21:45:49,147 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-19 21:45:49,150 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-19 21:45:49,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 09:45:48" (1/3) ... [2020-07-19 21:45:49,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15e7ea71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 09:45:49, skipping insertion in model container [2020-07-19 21:45:49,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:45:48" (2/3) ... [2020-07-19 21:45:49,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15e7ea71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 09:45:49, skipping insertion in model container [2020-07-19 21:45:49,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 09:45:49" (3/3) ... [2020-07-19 21:45:49,153 INFO L109 eAbstractionObserver]: Analyzing ICFG invert_string-1.c [2020-07-19 21:45:49,163 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-19 21:45:49,170 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-19 21:45:49,183 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-19 21:45:49,206 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-19 21:45:49,207 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-19 21:45:49,207 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-19 21:45:49,207 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-19 21:45:49,207 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-19 21:45:49,207 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-19 21:45:49,207 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-19 21:45:49,208 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-19 21:45:49,225 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-07-19 21:45:49,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-19 21:45:49,230 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:45:49,231 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:45:49,231 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:45:49,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:45:49,236 INFO L82 PathProgramCache]: Analyzing trace with hash -474003824, now seen corresponding path program 1 times [2020-07-19 21:45:49,244 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:45:49,244 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564763959] [2020-07-19 21:45:49,244 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@320b209 [2020-07-19 21:45:49,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:45:49,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:45:49,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:45:49,411 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564763959] [2020-07-19 21:45:49,411 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:45:49,412 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-19 21:45:49,412 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721296384] [2020-07-19 21:45:49,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-19 21:45:49,417 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:45:49,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-19 21:45:49,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-19 21:45:49,430 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 3 states. [2020-07-19 21:45:49,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:45:49,532 INFO L93 Difference]: Finished difference Result 51 states and 65 transitions. [2020-07-19 21:45:49,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-19 21:45:49,534 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-07-19 21:45:49,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:45:49,542 INFO L225 Difference]: With dead ends: 51 [2020-07-19 21:45:49,542 INFO L226 Difference]: Without dead ends: 24 [2020-07-19 21:45:49,546 INFO L675 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 [2020-07-19 21:45:49,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-07-19 21:45:49,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-07-19 21:45:49,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-07-19 21:45:49,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2020-07-19 21:45:49,583 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 17 [2020-07-19 21:45:49,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:45:49,583 INFO L479 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2020-07-19 21:45:49,583 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-19 21:45:49,584 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2020-07-19 21:45:49,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-19 21:45:49,584 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:45:49,585 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:45:49,585 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-19 21:45:49,586 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:45:49,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:45:49,587 INFO L82 PathProgramCache]: Analyzing trace with hash 227060754, now seen corresponding path program 1 times [2020-07-19 21:45:49,587 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:45:49,587 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946136616] [2020-07-19 21:45:49,587 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@320b209 [2020-07-19 21:45:49,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:45:49,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:45:49,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:45:49,705 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946136616] [2020-07-19 21:45:49,705 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:45:49,706 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-19 21:45:49,706 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611363584] [2020-07-19 21:45:49,708 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-19 21:45:49,708 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:45:49,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-19 21:45:49,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-19 21:45:49,709 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand 5 states. [2020-07-19 21:45:49,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:45:49,829 INFO L93 Difference]: Finished difference Result 44 states and 49 transitions. [2020-07-19 21:45:49,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-19 21:45:49,830 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-07-19 21:45:49,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:45:49,833 INFO L225 Difference]: With dead ends: 44 [2020-07-19 21:45:49,834 INFO L226 Difference]: Without dead ends: 30 [2020-07-19 21:45:49,835 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-19 21:45:49,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-07-19 21:45:49,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 25. [2020-07-19 21:45:49,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-07-19 21:45:49,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2020-07-19 21:45:49,847 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 17 [2020-07-19 21:45:49,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:45:49,847 INFO L479 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2020-07-19 21:45:49,847 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-19 21:45:49,847 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2020-07-19 21:45:49,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-07-19 21:45:49,848 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:45:49,848 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:45:49,849 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-19 21:45:49,849 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:45:49,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:45:49,849 INFO L82 PathProgramCache]: Analyzing trace with hash -714610672, now seen corresponding path program 1 times [2020-07-19 21:45:49,850 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:45:49,850 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001027159] [2020-07-19 21:45:49,850 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@320b209 [2020-07-19 21:45:49,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:45:49,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:45:49,961 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-19 21:45:49,962 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001027159] [2020-07-19 21:45:49,962 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:45:49,962 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-19 21:45:49,962 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279148629] [2020-07-19 21:45:49,963 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-19 21:45:49,966 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:45:49,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-19 21:45:49,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-19 21:45:49,967 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand 5 states. [2020-07-19 21:45:50,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:45:50,087 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2020-07-19 21:45:50,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-19 21:45:50,088 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-07-19 21:45:50,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:45:50,089 INFO L225 Difference]: With dead ends: 37 [2020-07-19 21:45:50,089 INFO L226 Difference]: Without dead ends: 26 [2020-07-19 21:45:50,090 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-19 21:45:50,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-07-19 21:45:50,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-07-19 21:45:50,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-07-19 21:45:50,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2020-07-19 21:45:50,097 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 19 [2020-07-19 21:45:50,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:45:50,098 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2020-07-19 21:45:50,098 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-19 21:45:50,098 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2020-07-19 21:45:50,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-07-19 21:45:50,099 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:45:50,100 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] [2020-07-19 21:45:50,100 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-19 21:45:50,100 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:45:50,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:45:50,101 INFO L82 PathProgramCache]: Analyzing trace with hash 483863630, now seen corresponding path program 1 times [2020-07-19 21:45:50,101 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:45:50,101 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090495172] [2020-07-19 21:45:50,101 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@320b209 [2020-07-19 21:45:50,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:45:50,252 ERROR L253 erpolLogProxyWrapper]: Interpolant 2 not inductive [2020-07-19 21:45:50,302 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-19 21:45:50,303 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:219) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:874) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:392) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:386) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) 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:326) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) 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$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-19 21:45:50,312 INFO L168 Benchmark]: Toolchain (without parser) took 2088.29 ms. Allocated memory was 144.7 MB in the beginning and 202.4 MB in the end (delta: 57.7 MB). Free memory was 102.8 MB in the beginning and 91.5 MB in the end (delta: 11.3 MB). Peak memory consumption was 68.9 MB. Max. memory is 7.1 GB. [2020-07-19 21:45:50,313 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 144.7 MB. Free memory was 121.0 MB in the beginning and 120.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-19 21:45:50,314 INFO L168 Benchmark]: CACSL2BoogieTranslator took 258.51 ms. Allocated memory is still 144.7 MB. Free memory was 102.3 MB in the beginning and 92.1 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2020-07-19 21:45:50,315 INFO L168 Benchmark]: Boogie Preprocessor took 187.55 ms. Allocated memory was 144.7 MB in the beginning and 202.4 MB in the end (delta: 57.7 MB). Free memory was 92.1 MB in the beginning and 180.3 MB in the end (delta: -88.2 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-07-19 21:45:50,316 INFO L168 Benchmark]: RCFGBuilder took 477.29 ms. Allocated memory is still 202.4 MB. Free memory was 180.3 MB in the beginning and 163.8 MB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 7.1 GB. [2020-07-19 21:45:50,317 INFO L168 Benchmark]: TraceAbstraction took 1159.88 ms. Allocated memory is still 202.4 MB. Free memory was 163.1 MB in the beginning and 91.5 MB in the end (delta: 71.6 MB). Peak memory consumption was 71.6 MB. Max. memory is 7.1 GB. [2020-07-19 21:45:50,321 INFO L336 ainManager$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 144.7 MB. Free memory was 121.0 MB in the beginning and 120.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 258.51 ms. Allocated memory is still 144.7 MB. Free memory was 102.3 MB in the beginning and 92.1 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 187.55 ms. Allocated memory was 144.7 MB in the beginning and 202.4 MB in the end (delta: 57.7 MB). Free memory was 92.1 MB in the beginning and 180.3 MB in the end (delta: -88.2 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 477.29 ms. Allocated memory is still 202.4 MB. Free memory was 180.3 MB in the beginning and 163.8 MB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1159.88 ms. Allocated memory is still 202.4 MB. Free memory was 163.1 MB in the beginning and 91.5 MB in the end (delta: 71.6 MB). Peak memory consumption was 71.6 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:219) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...