java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --traceabstraction.dump.automata.to.the.following.directory dump --rcfgbuilder.size.of.a.code.block SingleStatement --cacsl2boogietranslator.bitprecise.bitfields false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/memsafety/lockfree-3.0_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-c5b1954-m [2018-10-10 14:43:28,307 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 14:43:28,309 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 14:43:28,322 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 14:43:28,322 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 14:43:28,323 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 14:43:28,324 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 14:43:28,326 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 14:43:28,328 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 14:43:28,329 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 14:43:28,330 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-10 14:43:28,330 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-10 14:43:28,331 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-10 14:43:28,332 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-10 14:43:28,333 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-10 14:43:28,334 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-10 14:43:28,335 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-10 14:43:28,337 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-10 14:43:28,339 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-10 14:43:28,341 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-10 14:43:28,342 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-10 14:43:28,343 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-10 14:43:28,346 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-10 14:43:28,346 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-10 14:43:28,346 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-10 14:43:28,347 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-10 14:43:28,349 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-10 14:43:28,349 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-10 14:43:28,350 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-10 14:43:28,352 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-10 14:43:28,352 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-10 14:43:28,353 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-10 14:43:28,353 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-10 14:43:28,353 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-10 14:43:28,354 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-10 14:43:28,355 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-10 14:43:28,355 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-10-10 14:43:28,371 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 14:43:28,371 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 14:43:28,372 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-10 14:43:28,373 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-10 14:43:28,373 INFO L133 SettingsManager]: * Use SBE=true [2018-10-10 14:43:28,373 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-10 14:43:28,373 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-10 14:43:28,374 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-10 14:43:28,374 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-10 14:43:28,374 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-10 14:43:28,374 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-10 14:43:28,374 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-10-10 14:43:28,375 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-10-10 14:43:28,375 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-10-10 14:43:28,375 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-10 14:43:28,375 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-10 14:43:28,375 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 14:43:28,376 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-10 14:43:28,376 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-10 14:43:28,376 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-10 14:43:28,376 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-10 14:43:28,376 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 14:43:28,377 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-10 14:43:28,377 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-10 14:43:28,377 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-10 14:43:28,377 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Dump automata to the following directory -> dump Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Bitprecise bitfields -> false [2018-10-10 14:43:28,424 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 14:43:28,438 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 14:43:28,442 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 14:43:28,444 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-10 14:43:28,444 INFO L276 PluginConnector]: CDTParser initialized [2018-10-10 14:43:28,445 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety/lockfree-3.0_true-valid-memsafety.i [2018-10-10 14:43:28,777 INFO L217 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a71dab14f/af8b3e659fdb491e859cdc4b52137f5e/FLAG22122fba1 [2018-10-10 14:43:29,044 INFO L289 CDTParser]: Found 1 translation units. [2018-10-10 14:43:29,044 INFO L157 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/memsafety/lockfree-3.0_true-valid-memsafety.i [2018-10-10 14:43:29,058 INFO L337 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a71dab14f/af8b3e659fdb491e859cdc4b52137f5e/FLAG22122fba1 [2018-10-10 14:43:29,071 INFO L345 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a71dab14f/af8b3e659fdb491e859cdc4b52137f5e [2018-10-10 14:43:29,080 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 14:43:29,082 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-10 14:43:29,083 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-10 14:43:29,083 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-10 14:43:29,087 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-10 14:43:29,088 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 02:43:29" (1/1) ... [2018-10-10 14:43:29,090 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e8e3f40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:43:29, skipping insertion in model container [2018-10-10 14:43:29,091 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 02:43:29" (1/1) ... [2018-10-10 14:43:29,101 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-10 14:43:29,147 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-10 14:43:29,407 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-10 14:43:29,424 INFO L189 MainTranslator]: Completed pre-run [2018-10-10 14:43:29,489 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-10 14:43:29,554 INFO L193 MainTranslator]: Completed translation [2018-10-10 14:43:29,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:43:29 WrapperNode [2018-10-10 14:43:29,555 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-10 14:43:29,555 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-10 14:43:29,558 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-10 14:43:29,558 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-10 14:43:29,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:43:29" (1/1) ... [2018-10-10 14:43:29,599 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:43:29" (1/1) ... [2018-10-10 14:43:29,634 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-10 14:43:29,634 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 14:43:29,634 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 14:43:29,634 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 14:43:29,642 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:43:29" (1/1) ... [2018-10-10 14:43:29,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:43:29" (1/1) ... [2018-10-10 14:43:29,647 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:43:29" (1/1) ... [2018-10-10 14:43:29,648 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:43:29" (1/1) ... [2018-10-10 14:43:29,657 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:43:29" (1/1) ... [2018-10-10 14:43:29,663 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:43:29" (1/1) ... [2018-10-10 14:43:29,746 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:43:29" (1/1) ... [2018-10-10 14:43:29,756 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 14:43:29,756 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 14:43:29,756 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 14:43:29,757 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 14:43:29,760 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:43:29" (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 [2018-10-10 14:43:29,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 14:43:29,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 14:43:30,962 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 14:43:30,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 02:43:30 BoogieIcfgContainer [2018-10-10 14:43:30,963 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 14:43:30,964 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 14:43:30,964 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 14:43:30,967 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 14:43:30,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.10 02:43:29" (1/3) ... [2018-10-10 14:43:30,968 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18476ef3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 02:43:30, skipping insertion in model container [2018-10-10 14:43:30,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:43:29" (2/3) ... [2018-10-10 14:43:30,969 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18476ef3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 02:43:30, skipping insertion in model container [2018-10-10 14:43:30,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 02:43:30" (3/3) ... [2018-10-10 14:43:30,971 INFO L112 eAbstractionObserver]: Analyzing ICFG lockfree-3.0_true-valid-memsafety.i [2018-10-10 14:43:30,982 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-10 14:43:30,991 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 19 error locations. [2018-10-10 14:43:31,011 INFO L257 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2018-10-10 14:43:31,040 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 14:43:31,041 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 14:43:31,041 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 14:43:31,042 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-10 14:43:31,042 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 14:43:31,042 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 14:43:31,042 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 14:43:31,043 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 14:43:31,043 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 14:43:31,068 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-10-10 14:43:31,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-10 14:43:31,077 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:43:31,078 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:43:31,081 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:43:31,092 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:43:31,092 INFO L82 PathProgramCache]: Analyzing trace with hash -1084825425, now seen corresponding path program 1 times [2018-10-10 14:43:31,094 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:43:31,095 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:43:31,156 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:43:31,157 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:43:31,157 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:43:31,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:43:31,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:43:31,261 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:43:31,261 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-10 14:43:31,266 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-10 14:43:31,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-10 14:43:31,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-10 14:43:31,288 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 2 states. [2018-10-10 14:43:31,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:43:31,318 INFO L93 Difference]: Finished difference Result 216 states and 233 transitions. [2018-10-10 14:43:31,318 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-10 14:43:31,319 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-10-10 14:43:31,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:43:31,345 INFO L225 Difference]: With dead ends: 216 [2018-10-10 14:43:31,345 INFO L226 Difference]: Without dead ends: 211 [2018-10-10 14:43:31,348 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-10 14:43:31,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2018-10-10 14:43:31,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2018-10-10 14:43:31,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2018-10-10 14:43:31,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 228 transitions. [2018-10-10 14:43:31,406 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 228 transitions. Word has length 21 [2018-10-10 14:43:31,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:43:31,407 INFO L481 AbstractCegarLoop]: Abstraction has 211 states and 228 transitions. [2018-10-10 14:43:31,407 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-10 14:43:31,407 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 228 transitions. [2018-10-10 14:43:31,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-10-10 14:43:31,409 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:43:31,409 INFO L375 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] [2018-10-10 14:43:31,410 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:43:31,410 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:43:31,410 INFO L82 PathProgramCache]: Analyzing trace with hash -136376039, now seen corresponding path program 1 times [2018-10-10 14:43:31,410 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:43:31,410 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:43:31,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:43:31,412 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:43:31,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:43:31,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:43:31,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:43:31,507 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:43:31,507 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-10 14:43:31,508 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-10 14:43:31,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-10 14:43:31,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-10 14:43:31,510 INFO L87 Difference]: Start difference. First operand 211 states and 228 transitions. Second operand 3 states. [2018-10-10 14:43:31,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:43:31,652 INFO L93 Difference]: Finished difference Result 212 states and 229 transitions. [2018-10-10 14:43:31,653 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-10 14:43:31,653 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2018-10-10 14:43:31,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:43:31,656 INFO L225 Difference]: With dead ends: 212 [2018-10-10 14:43:31,656 INFO L226 Difference]: Without dead ends: 212 [2018-10-10 14:43:31,657 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-10 14:43:31,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2018-10-10 14:43:31,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2018-10-10 14:43:31,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2018-10-10 14:43:31,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 229 transitions. [2018-10-10 14:43:31,674 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 229 transitions. Word has length 27 [2018-10-10 14:43:31,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:43:31,674 INFO L481 AbstractCegarLoop]: Abstraction has 212 states and 229 transitions. [2018-10-10 14:43:31,674 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-10 14:43:31,674 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 229 transitions. [2018-10-10 14:43:31,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-10-10 14:43:31,676 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:43:31,676 INFO L375 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] [2018-10-10 14:43:31,677 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:43:31,677 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:43:31,677 INFO L82 PathProgramCache]: Analyzing trace with hash 1942125718, now seen corresponding path program 1 times [2018-10-10 14:43:31,677 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:43:31,677 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:43:31,678 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:43:31,679 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:43:31,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:43:31,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:43:31,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:43:31,772 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:43:31,773 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-10 14:43:31,773 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-10 14:43:31,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-10 14:43:31,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-10 14:43:31,774 INFO L87 Difference]: Start difference. First operand 212 states and 229 transitions. Second operand 3 states. [2018-10-10 14:43:31,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:43:31,995 INFO L93 Difference]: Finished difference Result 371 states and 405 transitions. [2018-10-10 14:43:31,995 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-10 14:43:31,995 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2018-10-10 14:43:31,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:43:32,000 INFO L225 Difference]: With dead ends: 371 [2018-10-10 14:43:32,000 INFO L226 Difference]: Without dead ends: 369 [2018-10-10 14:43:32,001 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-10 14:43:32,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2018-10-10 14:43:32,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 332. [2018-10-10 14:43:32,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2018-10-10 14:43:32,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 376 transitions. [2018-10-10 14:43:32,028 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 376 transitions. Word has length 29 [2018-10-10 14:43:32,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:43:32,028 INFO L481 AbstractCegarLoop]: Abstraction has 332 states and 376 transitions. [2018-10-10 14:43:32,028 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-10 14:43:32,029 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 376 transitions. [2018-10-10 14:43:32,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-10-10 14:43:32,030 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:43:32,030 INFO L375 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] [2018-10-10 14:43:32,031 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:43:32,031 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:43:32,031 INFO L82 PathProgramCache]: Analyzing trace with hash 76387166, now seen corresponding path program 1 times [2018-10-10 14:43:32,032 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:43:32,032 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:43:32,033 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:43:32,036 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:43:32,036 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:43:32,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:43:32,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:43:32,140 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:43:32,140 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-10 14:43:32,140 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-10 14:43:32,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-10 14:43:32,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-10 14:43:32,141 INFO L87 Difference]: Start difference. First operand 332 states and 376 transitions. Second operand 3 states. [2018-10-10 14:43:32,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:43:32,226 INFO L93 Difference]: Finished difference Result 617 states and 704 transitions. [2018-10-10 14:43:32,227 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-10 14:43:32,227 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2018-10-10 14:43:32,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:43:32,231 INFO L225 Difference]: With dead ends: 617 [2018-10-10 14:43:32,231 INFO L226 Difference]: Without dead ends: 613 [2018-10-10 14:43:32,231 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-10 14:43:32,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2018-10-10 14:43:32,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 552. [2018-10-10 14:43:32,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 552 states. [2018-10-10 14:43:32,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 645 transitions. [2018-10-10 14:43:32,266 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 645 transitions. Word has length 30 [2018-10-10 14:43:32,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:43:32,267 INFO L481 AbstractCegarLoop]: Abstraction has 552 states and 645 transitions. [2018-10-10 14:43:32,267 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-10 14:43:32,267 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 645 transitions. [2018-10-10 14:43:32,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-10-10 14:43:32,268 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:43:32,269 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:43:32,269 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:43:32,270 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:43:32,270 INFO L82 PathProgramCache]: Analyzing trace with hash -1809141084, now seen corresponding path program 1 times [2018-10-10 14:43:32,270 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:43:32,270 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:43:32,271 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:43:32,271 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:43:32,272 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:43:32,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:43:32,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:43:32,461 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:43:32,461 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-10 14:43:32,462 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-10 14:43:32,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-10 14:43:32,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-10 14:43:32,462 INFO L87 Difference]: Start difference. First operand 552 states and 645 transitions. Second operand 6 states. [2018-10-10 14:43:33,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:43:33,058 INFO L93 Difference]: Finished difference Result 1004 states and 1158 transitions. [2018-10-10 14:43:33,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-10 14:43:33,061 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2018-10-10 14:43:33,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:43:33,067 INFO L225 Difference]: With dead ends: 1004 [2018-10-10 14:43:33,067 INFO L226 Difference]: Without dead ends: 1004 [2018-10-10 14:43:33,068 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2018-10-10 14:43:33,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1004 states. [2018-10-10 14:43:33,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1004 to 555. [2018-10-10 14:43:33,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 555 states. [2018-10-10 14:43:33,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 648 transitions. [2018-10-10 14:43:33,098 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 648 transitions. Word has length 38 [2018-10-10 14:43:33,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:43:33,099 INFO L481 AbstractCegarLoop]: Abstraction has 555 states and 648 transitions. [2018-10-10 14:43:33,099 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-10 14:43:33,099 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 648 transitions. [2018-10-10 14:43:33,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-10-10 14:43:33,103 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:43:33,104 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:43:33,105 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:43:33,107 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:43:33,107 INFO L82 PathProgramCache]: Analyzing trace with hash -565958905, now seen corresponding path program 1 times [2018-10-10 14:43:33,107 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:43:33,108 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:43:33,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:43:33,109 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:43:33,109 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:43:33,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:43:33,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:43:33,396 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:43:33,396 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-10 14:43:33,396 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-10 14:43:33,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-10 14:43:33,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-10-10 14:43:33,397 INFO L87 Difference]: Start difference. First operand 555 states and 648 transitions. Second operand 7 states. [2018-10-10 14:43:33,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:43:33,763 INFO L93 Difference]: Finished difference Result 1154 states and 1326 transitions. [2018-10-10 14:43:33,764 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-10 14:43:33,764 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2018-10-10 14:43:33,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:43:33,770 INFO L225 Difference]: With dead ends: 1154 [2018-10-10 14:43:33,770 INFO L226 Difference]: Without dead ends: 1154 [2018-10-10 14:43:33,771 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-10 14:43:33,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1154 states. [2018-10-10 14:43:33,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1154 to 862. [2018-10-10 14:43:33,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 862 states. [2018-10-10 14:43:33,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 862 states to 862 states and 1014 transitions. [2018-10-10 14:43:33,793 INFO L78 Accepts]: Start accepts. Automaton has 862 states and 1014 transitions. Word has length 40 [2018-10-10 14:43:33,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:43:33,793 INFO L481 AbstractCegarLoop]: Abstraction has 862 states and 1014 transitions. [2018-10-10 14:43:33,794 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-10 14:43:33,794 INFO L276 IsEmpty]: Start isEmpty. Operand 862 states and 1014 transitions. [2018-10-10 14:43:33,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-10-10 14:43:33,795 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:43:33,795 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:43:33,796 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:43:33,796 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:43:33,797 INFO L82 PathProgramCache]: Analyzing trace with hash 1190606965, now seen corresponding path program 1 times [2018-10-10 14:43:33,797 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:43:33,797 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:43:33,798 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:43:33,798 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:43:33,799 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:43:33,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:43:33,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:43:33,941 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:43:33,941 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-10 14:43:33,942 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-10 14:43:33,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-10 14:43:33,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-10-10 14:43:33,943 INFO L87 Difference]: Start difference. First operand 862 states and 1014 transitions. Second operand 7 states. [2018-10-10 14:43:34,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:43:34,346 INFO L93 Difference]: Finished difference Result 1950 states and 2250 transitions. [2018-10-10 14:43:34,347 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-10 14:43:34,347 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 41 [2018-10-10 14:43:34,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:43:34,357 INFO L225 Difference]: With dead ends: 1950 [2018-10-10 14:43:34,357 INFO L226 Difference]: Without dead ends: 1950 [2018-10-10 14:43:34,358 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-10 14:43:34,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1950 states. [2018-10-10 14:43:34,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1950 to 1394. [2018-10-10 14:43:34,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1394 states. [2018-10-10 14:43:34,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 1632 transitions. [2018-10-10 14:43:34,398 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 1632 transitions. Word has length 41 [2018-10-10 14:43:34,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:43:34,398 INFO L481 AbstractCegarLoop]: Abstraction has 1394 states and 1632 transitions. [2018-10-10 14:43:34,398 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-10 14:43:34,399 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 1632 transitions. [2018-10-10 14:43:34,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-10-10 14:43:34,409 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:43:34,409 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:43:34,410 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:43:34,410 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:43:34,411 INFO L82 PathProgramCache]: Analyzing trace with hash 2047573667, now seen corresponding path program 1 times [2018-10-10 14:43:34,411 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:43:34,411 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:43:34,414 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:43:34,414 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:43:34,414 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:43:34,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:43:34,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:43:34,822 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:43:34,822 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-10 14:43:34,823 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-10 14:43:34,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-10 14:43:34,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-10-10 14:43:34,824 INFO L87 Difference]: Start difference. First operand 1394 states and 1632 transitions. Second operand 6 states. [2018-10-10 14:43:36,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:43:36,031 INFO L93 Difference]: Finished difference Result 2294 states and 2646 transitions. [2018-10-10 14:43:36,031 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-10 14:43:36,032 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 51 [2018-10-10 14:43:36,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:43:36,043 INFO L225 Difference]: With dead ends: 2294 [2018-10-10 14:43:36,044 INFO L226 Difference]: Without dead ends: 2294 [2018-10-10 14:43:36,044 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2018-10-10 14:43:36,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2294 states. [2018-10-10 14:43:36,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2294 to 1393. [2018-10-10 14:43:36,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1393 states. [2018-10-10 14:43:36,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1393 states to 1393 states and 1624 transitions. [2018-10-10 14:43:36,083 INFO L78 Accepts]: Start accepts. Automaton has 1393 states and 1624 transitions. Word has length 51 [2018-10-10 14:43:36,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:43:36,084 INFO L481 AbstractCegarLoop]: Abstraction has 1393 states and 1624 transitions. [2018-10-10 14:43:36,084 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-10 14:43:36,084 INFO L276 IsEmpty]: Start isEmpty. Operand 1393 states and 1624 transitions. [2018-10-10 14:43:36,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-10-10 14:43:36,085 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:43:36,086 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:43:36,087 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:43:36,087 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:43:36,087 INFO L82 PathProgramCache]: Analyzing trace with hash -949725660, now seen corresponding path program 1 times [2018-10-10 14:43:36,087 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:43:36,087 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:43:36,088 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:43:36,088 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:43:36,088 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:43:36,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:43:36,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:43:36,990 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:43:36,990 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-10 14:43:36,991 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-10 14:43:36,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-10 14:43:36,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-10-10 14:43:36,992 INFO L87 Difference]: Start difference. First operand 1393 states and 1624 transitions. Second operand 8 states. [2018-10-10 14:43:37,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:43:37,423 INFO L93 Difference]: Finished difference Result 1680 states and 1926 transitions. [2018-10-10 14:43:37,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-10 14:43:37,424 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 52 [2018-10-10 14:43:37,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:43:37,433 INFO L225 Difference]: With dead ends: 1680 [2018-10-10 14:43:37,434 INFO L226 Difference]: Without dead ends: 1680 [2018-10-10 14:43:37,434 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2018-10-10 14:43:37,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1680 states. [2018-10-10 14:43:37,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1680 to 1392. [2018-10-10 14:43:37,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1392 states. [2018-10-10 14:43:37,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 1616 transitions. [2018-10-10 14:43:37,466 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 1616 transitions. Word has length 52 [2018-10-10 14:43:37,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:43:37,467 INFO L481 AbstractCegarLoop]: Abstraction has 1392 states and 1616 transitions. [2018-10-10 14:43:37,467 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-10 14:43:37,467 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 1616 transitions. [2018-10-10 14:43:37,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-10-10 14:43:37,468 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:43:37,468 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:43:37,469 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:43:37,469 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:43:37,470 INFO L82 PathProgramCache]: Analyzing trace with hash -1740692477, now seen corresponding path program 1 times [2018-10-10 14:43:37,470 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:43:37,470 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:43:37,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:43:37,471 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:43:37,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:43:37,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:43:37,612 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:43:37,613 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-10 14:43:37,613 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-10 14:43:37,622 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:43:37,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:43:37,672 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 14:43:37,725 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:43:37,749 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-10 14:43:37,750 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2018-10-10 14:43:37,779 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: cannot bring into simultaneous update form ULTIMATE.start_main_#t~short8's outvar occurs in several conjuncts [(let ((.cse2 (= v_~S~0.base_2 0)) (.cse3 (= v_~S~0.offset_2 0)) (.cse0 (= v_~pc1~0_2 1)) (.cse1 (= v_~pc4~0_2 1))) (or (and .cse0 (not |v_ULTIMATE.start_main_#t~short8_2|) .cse1 .cse2 .cse3) (and (or (not .cse2) (not .cse3) (not .cse0) (not .cse1)) |v_ULTIMATE.start_main_#t~short8_2|)))] at de.uni_freiburg.informatik.ultimate.modelcheckerutils.cfg.transitions.SimultaneousUpdate.(SimultaneousUpdate.java:107) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramDumper.addStatementsAndVariables(PathProgramDumper.java:634) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramDumper.constructTransitionStatements(PathProgramDumper.java:560) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramDumper.processTransition(PathProgramDumper.java:521) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramDumper.constructProcedureStatements(PathProgramDumper.java:489) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramDumper.constructNewImplementation(PathProgramDumper.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramDumper.(PathProgramDumper.java:194) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramDumpController.doDump(PathProgramDumpController.java:105) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramDumpController.reportPathProgram(PathProgramDumpController.java:69) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:473) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:435) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) 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:316) 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) [2018-10-10 14:43:37,784 INFO L168 Benchmark]: Toolchain (without parser) took 8703.61 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 734.5 MB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -356.8 MB). Peak memory consumption was 377.7 MB. Max. memory is 7.1 GB. [2018-10-10 14:43:37,786 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 14:43:37,787 INFO L168 Benchmark]: CACSL2BoogieTranslator took 472.12 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-10-10 14:43:37,788 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.30 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 14:43:37,789 INFO L168 Benchmark]: Boogie Preprocessor took 121.87 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 734.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -816.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. [2018-10-10 14:43:37,790 INFO L168 Benchmark]: RCFGBuilder took 1206.56 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 68.7 MB). Peak memory consumption was 68.7 MB. Max. memory is 7.1 GB. [2018-10-10 14:43:37,791 INFO L168 Benchmark]: TraceAbstraction took 6819.73 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 1.8 GB in the end (delta: 370.3 MB). Peak memory consumption was 370.3 MB. Max. memory is 7.1 GB. [2018-10-10 14:43:37,796 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 472.12 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 78.30 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 121.87 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 734.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -816.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1206.56 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 68.7 MB). Peak memory consumption was 68.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6819.73 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 1.8 GB in the end (delta: 370.3 MB). Peak memory consumption was 370.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: IllegalArgumentException: cannot bring into simultaneous update form ULTIMATE.start_main_#t~short8's outvar occurs in several conjuncts [(let ((.cse2 (= v_~S~0.base_2 0)) (.cse3 (= v_~S~0.offset_2 0)) (.cse0 (= v_~pc1~0_2 1)) (.cse1 (= v_~pc4~0_2 1))) (or (and .cse0 (not |v_ULTIMATE.start_main_#t~short8_2|) .cse1 .cse2 .cse3) (and (or (not .cse2) (not .cse3) (not .cse0) (not .cse1)) |v_ULTIMATE.start_main_#t~short8_2|)))] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: cannot bring into simultaneous update form ULTIMATE.start_main_#t~short8's outvar occurs in several conjuncts [(let ((.cse2 (= v_~S~0.base_2 0)) (.cse3 (= v_~S~0.offset_2 0)) (.cse0 (= v_~pc1~0_2 1)) (.cse1 (= v_~pc4~0_2 1))) (or (and .cse0 (not |v_ULTIMATE.start_main_#t~short8_2|) .cse1 .cse2 .cse3) (and (or (not .cse2) (not .cse3) (not .cse0) (not .cse1)) |v_ULTIMATE.start_main_#t~short8_2|)))]: de.uni_freiburg.informatik.ultimate.modelcheckerutils.cfg.transitions.SimultaneousUpdate.(SimultaneousUpdate.java:107) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...