./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/unroll-cond-5.wvr.c --full-output --traceabstraction.use.conditional.por.in.concurrent.analysis false --traceabstraction.commutativity.condition.synthesis NONE --traceabstraction.partial.order.reduction.in.concurrent.analysis SLEEP_NEW_STATES --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6f232940 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../sv-benchmarks/c/weaver/unroll-cond-5.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 052a68c73a5d1c6e7122fc0c660c02483f37277d0239d876d93b351fcdd64a16 --traceabstraction.use.conditional.por.in.concurrent.analysis false --traceabstraction.commutativity.condition.synthesis NONE --traceabstraction.partial.order.reduction.in.concurrent.analysis SLEEP_NEW_STATES --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6f23294-m [2025-03-19 22:49:04,249 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-19 22:49:04,330 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-03-19 22:49:04,333 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-19 22:49:04,333 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-19 22:49:04,358 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-19 22:49:04,358 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-19 22:49:04,358 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-19 22:49:04,358 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-19 22:49:04,365 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-19 22:49:04,365 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-19 22:49:04,365 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-19 22:49:04,365 INFO L153 SettingsManager]: * Use SBE=true [2025-03-19 22:49:04,365 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-19 22:49:04,365 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-19 22:49:04,365 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-19 22:49:04,365 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-19 22:49:04,365 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-19 22:49:04,365 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-19 22:49:04,366 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-19 22:49:04,366 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-19 22:49:04,366 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-19 22:49:04,366 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-19 22:49:04,366 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-19 22:49:04,366 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-19 22:49:04,366 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-19 22:49:04,369 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-03-19 22:49:04,369 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-19 22:49:04,369 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-19 22:49:04,369 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-19 22:49:04,369 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-19 22:49:04,369 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-19 22:49:04,369 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-19 22:49:04,369 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-19 22:49:04,369 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-03-19 22:49:04,369 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-19 22:49:04,369 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-19 22:49:04,369 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-03-19 22:49:04,369 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-19 22:49:04,369 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-03-19 22:49:04,369 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-03-19 22:49:04,369 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-03-19 22:49:04,369 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 052a68c73a5d1c6e7122fc0c660c02483f37277d0239d876d93b351fcdd64a16 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use conditional POR in concurrent analysis -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> NONE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Partial Order Reduction in concurrent analysis -> SLEEP_NEW_STATES [2025-03-19 22:49:04,583 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-19 22:49:04,588 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-19 22:49:04,589 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-19 22:49:04,590 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-19 22:49:04,590 INFO L274 PluginConnector]: CDTParser initialized [2025-03-19 22:49:04,591 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/weaver/unroll-cond-5.wvr.c [2025-03-19 22:49:05,850 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/d36a36f63/671f9b4f1752429c9326f167f4ee358e/FLAG9ccbbad2a [2025-03-19 22:49:06,003 INFO L389 CDTParser]: Found 1 translation units. [2025-03-19 22:49:06,007 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/unroll-cond-5.wvr.c [2025-03-19 22:49:06,014 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/d36a36f63/671f9b4f1752429c9326f167f4ee358e/FLAG9ccbbad2a [2025-03-19 22:49:06,900 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/d36a36f63/671f9b4f1752429c9326f167f4ee358e [2025-03-19 22:49:06,902 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-19 22:49:06,903 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-19 22:49:06,904 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-19 22:49:06,904 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-19 22:49:06,906 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-19 22:49:06,907 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 10:49:06" (1/1) ... [2025-03-19 22:49:06,907 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@370522cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:49:06, skipping insertion in model container [2025-03-19 22:49:06,907 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 10:49:06" (1/1) ... [2025-03-19 22:49:06,920 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-19 22:49:07,054 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/unroll-cond-5.wvr.c[3001,3014] [2025-03-19 22:49:07,059 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-19 22:49:07,065 INFO L200 MainTranslator]: Completed pre-run [2025-03-19 22:49:07,085 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/unroll-cond-5.wvr.c[3001,3014] [2025-03-19 22:49:07,087 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-19 22:49:07,098 INFO L204 MainTranslator]: Completed translation [2025-03-19 22:49:07,099 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:49:07 WrapperNode [2025-03-19 22:49:07,099 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-19 22:49:07,100 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-19 22:49:07,101 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-19 22:49:07,101 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-19 22:49:07,104 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:49:07" (1/1) ... [2025-03-19 22:49:07,113 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:49:07" (1/1) ... [2025-03-19 22:49:07,132 INFO L138 Inliner]: procedures = 23, calls = 35, calls flagged for inlining = 17, calls inlined = 17, statements flattened = 188 [2025-03-19 22:49:07,132 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-19 22:49:07,133 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-19 22:49:07,133 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-19 22:49:07,133 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-19 22:49:07,140 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:49:07" (1/1) ... [2025-03-19 22:49:07,140 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:49:07" (1/1) ... [2025-03-19 22:49:07,142 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:49:07" (1/1) ... [2025-03-19 22:49:07,145 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:49:07" (1/1) ... [2025-03-19 22:49:07,150 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:49:07" (1/1) ... [2025-03-19 22:49:07,154 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:49:07" (1/1) ... [2025-03-19 22:49:07,160 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:49:07" (1/1) ... [2025-03-19 22:49:07,161 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:49:07" (1/1) ... [2025-03-19 22:49:07,164 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:49:07" (1/1) ... [2025-03-19 22:49:07,167 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-19 22:49:07,168 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-03-19 22:49:07,168 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-03-19 22:49:07,168 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-03-19 22:49:07,169 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:49:07" (1/1) ... [2025-03-19 22:49:07,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-19 22:49:07,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 22:49:07,191 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2025-03-19 22:49:07,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2025-03-19 22:49:07,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-19 22:49:07,214 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-19 22:49:07,214 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-19 22:49:07,214 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-19 22:49:07,214 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-19 22:49:07,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-19 22:49:07,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-19 22:49:07,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-19 22:49:07,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-19 22:49:07,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-19 22:49:07,215 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-19 22:49:07,216 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-19 22:49:07,308 INFO L234 CfgBuilder]: Building ICFG [2025-03-19 22:49:07,309 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-19 22:49:07,571 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-19 22:49:07,572 INFO L283 CfgBuilder]: Performing block encoding [2025-03-19 22:49:07,787 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-19 22:49:07,787 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-19 22:49:07,788 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 10:49:07 BoogieIcfgContainer [2025-03-19 22:49:07,788 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-03-19 22:49:07,790 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-19 22:49:07,790 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-19 22:49:07,793 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-19 22:49:07,793 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.03 10:49:06" (1/3) ... [2025-03-19 22:49:07,794 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68558ccc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 10:49:07, skipping insertion in model container [2025-03-19 22:49:07,794 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:49:07" (2/3) ... [2025-03-19 22:49:07,795 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68558ccc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 10:49:07, skipping insertion in model container [2025-03-19 22:49:07,795 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 10:49:07" (3/3) ... [2025-03-19 22:49:07,796 INFO L128 eAbstractionObserver]: Analyzing ICFG unroll-cond-5.wvr.c [2025-03-19 22:49:07,805 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-19 22:49:07,807 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG unroll-cond-5.wvr.c that has 3 procedures, 18 locations, 18 edges, 1 initial locations, 3 loop locations, and 1 error locations. [2025-03-19 22:49:07,807 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-19 22:49:07,850 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-19 22:49:07,877 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-19 22:49:07,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-03-19 22:49:07,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 22:49:07,881 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-03-19 22:49:07,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-03-19 22:49:07,959 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-03-19 22:49:07,967 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-03-19 22:49:07,973 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@9ae87d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-19 22:49:07,975 INFO L341 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-03-19 22:49:07,992 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 22:49:07,997 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 22:49:07,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1391087791, now seen corresponding path program 1 times [2025-03-19 22:49:08,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 22:49:08,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918154984] [2025-03-19 22:49:08,003 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 22:49:08,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 22:49:08,061 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-19 22:49:08,104 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-19 22:49:08,105 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 22:49:08,105 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 22:49:08,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 22:49:08,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 22:49:08,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918154984] [2025-03-19 22:49:08,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918154984] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 22:49:08,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 22:49:08,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-19 22:49:08,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721452953] [2025-03-19 22:49:08,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 22:49:08,325 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-19 22:49:08,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 22:49:08,338 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-19 22:49:08,339 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-19 22:49:08,339 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 22:49:08,340 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 22:49:08,342 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-19 22:49:08,342 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 22:49:08,388 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 22:49:08,389 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-19 22:49:08,389 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 22:49:08,390 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 22:49:08,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1317655096, now seen corresponding path program 1 times [2025-03-19 22:49:08,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 22:49:08,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048206538] [2025-03-19 22:49:08,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 22:49:08,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 22:49:08,401 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-19 22:49:08,435 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-19 22:49:08,439 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 22:49:08,439 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 22:49:08,639 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-19 22:49:08,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 22:49:08,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048206538] [2025-03-19 22:49:08,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048206538] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 22:49:08,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 22:49:08,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-19 22:49:08,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516187096] [2025-03-19 22:49:08,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 22:49:08,641 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-19 22:49:08,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 22:49:08,641 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-19 22:49:08,641 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-19 22:49:08,641 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 22:49:08,642 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 22:49:08,642 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-19 22:49:08,642 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 22:49:08,642 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 22:49:08,727 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 22:49:08,728 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 22:49:08,728 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-19 22:49:08,729 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 22:49:08,729 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 22:49:08,730 INFO L85 PathProgramCache]: Analyzing trace with hash 2103107372, now seen corresponding path program 1 times [2025-03-19 22:49:08,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 22:49:08,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398891303] [2025-03-19 22:49:08,730 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 22:49:08,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 22:49:08,741 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-19 22:49:08,787 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-19 22:49:08,788 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 22:49:08,789 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 22:49:09,038 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-19 22:49:09,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 22:49:09,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398891303] [2025-03-19 22:49:09,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398891303] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 22:49:09,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [849265029] [2025-03-19 22:49:09,040 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 22:49:09,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 22:49:09,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 22:49:09,053 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-19 22:49:09,055 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-19 22:49:09,110 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-19 22:49:09,135 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-19 22:49:09,135 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 22:49:09,135 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 22:49:09,140 INFO L256 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 30 conjuncts are in the unsatisfiable core [2025-03-19 22:49:09,149 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 22:49:09,208 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-03-19 22:49:09,618 INFO L325 Elim1Store]: treesize reduction 324, result has 7.2 percent of original size [2025-03-19 22:49:09,618 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 14 new quantified variables, introduced 36 case distinctions, treesize of input 417 treesize of output 292 [2025-03-19 22:49:31,724 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 22:49:31,725 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 22:49:48,098 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 596 treesize of output 522 [2025-03-19 22:49:48,735 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-19 22:49:48,735 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 20 new quantified variables, introduced 55 case distinctions, treesize of input 18441 treesize of output 11621 [2025-03-19 22:52:23,711 WARN L656 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2025-03-19 22:52:26,659 WARN L656 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2025-03-19 22:52:32,069 WARN L656 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2025-03-19 22:52:33,710 WARN L656 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2025-03-19 22:52:36,426 WARN L656 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2025-03-19 22:52:38,282 WARN L656 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2025-03-19 22:52:47,953 WARN L249 Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2025-03-19 22:52:47,953 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 101 [2025-03-19 22:52:47,953 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2025-03-19 22:52:47,959 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-19 22:52:48,154 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2025-03-19 22:52:48,160 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2025-03-19 22:52:48,161 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:277) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:48) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.checkRedundancy(SimplifyDDA2.java:275) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convertForPreprocessedInputTerms(SimplifyDDA2.java:499) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:484) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:103) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:99) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.simplify(SimplifyDDA2.java:589) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:245) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:318) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify(QuantifierPusher.java:726) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:135) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:223) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:115) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:99) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:305) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:241) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:139) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:191) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:223) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:115) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:99) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:305) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:285) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:56) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:234) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:416) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:395) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:267) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:325) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:181) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.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.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderCegarLoop.isCounterexampleFeasible(PartialOrderCegarLoop.java:320) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:349) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:331) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:315) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:239) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:132) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 70 more [2025-03-19 22:52:48,166 INFO L158 Benchmark]: Toolchain (without parser) took 221262.55ms. Allocated memory was 117.4MB in the beginning and 1.9GB in the end (delta: 1.7GB). Free memory was 90.6MB in the beginning and 849.7MB in the end (delta: -759.0MB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. [2025-03-19 22:52:48,166 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 117.4MB. Free memory is still 80.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-19 22:52:48,166 INFO L158 Benchmark]: CACSL2BoogieTranslator took 195.96ms. Allocated memory is still 117.4MB. Free memory was 90.6MB in the beginning and 75.3MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-19 22:52:48,166 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.17ms. Allocated memory is still 117.4MB. Free memory was 75.3MB in the beginning and 73.4MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-19 22:52:48,166 INFO L158 Benchmark]: Boogie Preprocessor took 34.59ms. Allocated memory is still 117.4MB. Free memory was 73.4MB in the beginning and 72.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-19 22:52:48,166 INFO L158 Benchmark]: RCFGBuilder took 620.38ms. Allocated memory is still 117.4MB. Free memory was 72.0MB in the beginning and 53.1MB in the end (delta: 18.9MB). Peak memory consumption was 38.6MB. Max. memory is 16.1GB. [2025-03-19 22:52:48,166 INFO L158 Benchmark]: TraceAbstraction took 220375.26ms. Allocated memory was 117.4MB in the beginning and 1.9GB in the end (delta: 1.7GB). Free memory was 52.6MB in the beginning and 849.7MB in the end (delta: -797.1MB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2025-03-19 22:52:48,170 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 117.4MB. Free memory is still 80.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 195.96ms. Allocated memory is still 117.4MB. Free memory was 90.6MB in the beginning and 75.3MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.17ms. Allocated memory is still 117.4MB. Free memory was 75.3MB in the beginning and 73.4MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 34.59ms. Allocated memory is still 117.4MB. Free memory was 73.4MB in the beginning and 72.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 620.38ms. Allocated memory is still 117.4MB. Free memory was 72.0MB in the beginning and 53.1MB in the end (delta: 18.9MB). Peak memory consumption was 38.6MB. Max. memory is 16.1GB. * TraceAbstraction took 220375.26ms. Allocated memory was 117.4MB in the beginning and 1.9GB in the end (delta: 1.7GB). Free memory was 52.6MB in the beginning and 849.7MB in the end (delta: -797.1MB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../sv-benchmarks/c/weaver/unroll-cond-5.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 052a68c73a5d1c6e7122fc0c660c02483f37277d0239d876d93b351fcdd64a16 --traceabstraction.use.conditional.por.in.concurrent.analysis false --traceabstraction.commutativity.condition.synthesis NONE --traceabstraction.partial.order.reduction.in.concurrent.analysis SLEEP_NEW_STATES --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6f23294-m [2025-03-19 22:52:49,740 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-19 22:52:49,819 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf [2025-03-19 22:52:49,824 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-19 22:52:49,824 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-19 22:52:49,845 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-19 22:52:49,846 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-19 22:52:49,846 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-19 22:52:49,847 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-19 22:52:49,847 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-19 22:52:49,848 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-19 22:52:49,848 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-19 22:52:49,848 INFO L153 SettingsManager]: * Use SBE=true [2025-03-19 22:52:49,848 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-19 22:52:49,848 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-19 22:52:49,849 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-19 22:52:49,849 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-19 22:52:49,849 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-19 22:52:49,849 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-19 22:52:49,849 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-19 22:52:49,849 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-19 22:52:49,849 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-19 22:52:49,849 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-19 22:52:49,849 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-19 22:52:49,849 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-19 22:52:49,850 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-19 22:52:49,850 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-19 22:52:49,850 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-03-19 22:52:49,850 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-19 22:52:49,850 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-19 22:52:49,850 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-19 22:52:49,850 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-19 22:52:49,851 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-19 22:52:49,851 INFO L153 SettingsManager]: * Refinement strategy for commutativity condition synthesis=FOX [2025-03-19 22:52:49,851 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-19 22:52:49,851 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-19 22:52:49,851 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-03-19 22:52:49,851 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-19 22:52:49,851 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-19 22:52:49,851 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-03-19 22:52:49,851 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-19 22:52:49,851 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-03-19 22:52:49,852 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-03-19 22:52:49,852 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-03-19 22:52:49,852 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 052a68c73a5d1c6e7122fc0c660c02483f37277d0239d876d93b351fcdd64a16 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use conditional POR in concurrent analysis -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> NONE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Partial Order Reduction in concurrent analysis -> SLEEP_NEW_STATES [2025-03-19 22:52:50,066 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-19 22:52:50,073 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-19 22:52:50,074 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-19 22:52:50,076 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-19 22:52:50,077 INFO L274 PluginConnector]: CDTParser initialized [2025-03-19 22:52:50,078 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/weaver/unroll-cond-5.wvr.c [2025-03-19 22:52:51,349 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/d667c5b23/1c4537c9f39c4ea28edf320b35313f5b/FLAG70456452a [2025-03-19 22:52:51,515 INFO L389 CDTParser]: Found 1 translation units. [2025-03-19 22:52:51,516 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/unroll-cond-5.wvr.c [2025-03-19 22:52:51,522 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/d667c5b23/1c4537c9f39c4ea28edf320b35313f5b/FLAG70456452a [2025-03-19 22:52:52,400 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/d667c5b23/1c4537c9f39c4ea28edf320b35313f5b [2025-03-19 22:52:52,403 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-19 22:52:52,404 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-19 22:52:52,405 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-19 22:52:52,405 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-19 22:52:52,408 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-19 22:52:52,409 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 10:52:52" (1/1) ... [2025-03-19 22:52:52,409 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dd50818 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:52:52, skipping insertion in model container [2025-03-19 22:52:52,409 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 10:52:52" (1/1) ... [2025-03-19 22:52:52,422 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-19 22:52:52,563 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/unroll-cond-5.wvr.c[3001,3014] [2025-03-19 22:52:52,568 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-19 22:52:52,577 INFO L200 MainTranslator]: Completed pre-run [2025-03-19 22:52:52,614 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/unroll-cond-5.wvr.c[3001,3014] [2025-03-19 22:52:52,616 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-19 22:52:52,631 INFO L204 MainTranslator]: Completed translation [2025-03-19 22:52:52,632 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:52:52 WrapperNode [2025-03-19 22:52:52,632 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-19 22:52:52,633 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-19 22:52:52,633 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-19 22:52:52,633 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-19 22:52:52,637 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:52:52" (1/1) ... [2025-03-19 22:52:52,645 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:52:52" (1/1) ... [2025-03-19 22:52:52,665 INFO L138 Inliner]: procedures = 25, calls = 35, calls flagged for inlining = 17, calls inlined = 17, statements flattened = 186 [2025-03-19 22:52:52,667 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-19 22:52:52,668 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-19 22:52:52,668 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-19 22:52:52,668 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-19 22:52:52,673 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:52:52" (1/1) ... [2025-03-19 22:52:52,674 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:52:52" (1/1) ... [2025-03-19 22:52:52,677 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:52:52" (1/1) ... [2025-03-19 22:52:52,677 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:52:52" (1/1) ... [2025-03-19 22:52:52,691 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:52:52" (1/1) ... [2025-03-19 22:52:52,692 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:52:52" (1/1) ... [2025-03-19 22:52:52,695 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:52:52" (1/1) ... [2025-03-19 22:52:52,701 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:52:52" (1/1) ... [2025-03-19 22:52:52,702 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:52:52" (1/1) ... [2025-03-19 22:52:52,704 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-19 22:52:52,704 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-03-19 22:52:52,704 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-03-19 22:52:52,704 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-03-19 22:52:52,709 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:52:52" (1/1) ... [2025-03-19 22:52:52,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-19 22:52:52,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 22:52:52,736 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2025-03-19 22:52:52,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2025-03-19 22:52:52,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-19 22:52:52,754 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-19 22:52:52,754 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-19 22:52:52,754 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-19 22:52:52,754 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-19 22:52:52,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2025-03-19 22:52:52,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-19 22:52:52,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2025-03-19 22:52:52,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-19 22:52:52,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-19 22:52:52,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2025-03-19 22:52:52,755 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-19 22:52:52,826 INFO L234 CfgBuilder]: Building ICFG [2025-03-19 22:52:52,828 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-19 22:52:53,120 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-19 22:52:53,120 INFO L283 CfgBuilder]: Performing block encoding [2025-03-19 22:52:53,327 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-19 22:52:53,327 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-19 22:52:53,327 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 10:52:53 BoogieIcfgContainer [2025-03-19 22:52:53,327 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-03-19 22:52:53,329 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-19 22:52:53,329 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-19 22:52:53,332 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-19 22:52:53,332 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.03 10:52:52" (1/3) ... [2025-03-19 22:52:53,333 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fd0cf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 10:52:53, skipping insertion in model container [2025-03-19 22:52:53,333 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:52:52" (2/3) ... [2025-03-19 22:52:53,334 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fd0cf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 10:52:53, skipping insertion in model container [2025-03-19 22:52:53,334 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 10:52:53" (3/3) ... [2025-03-19 22:52:53,335 INFO L128 eAbstractionObserver]: Analyzing ICFG unroll-cond-5.wvr.c [2025-03-19 22:52:53,345 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-19 22:52:53,346 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG unroll-cond-5.wvr.c that has 3 procedures, 18 locations, 18 edges, 1 initial locations, 3 loop locations, and 1 error locations. [2025-03-19 22:52:53,346 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-19 22:52:53,394 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-19 22:52:53,422 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-19 22:52:53,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-03-19 22:52:53,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 22:52:53,425 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-03-19 22:52:53,427 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-03-19 22:52:53,478 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-03-19 22:52:53,482 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-03-19 22:52:53,488 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3c992227, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-19 22:52:53,489 INFO L341 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-03-19 22:52:53,502 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 22:52:53,505 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 22:52:53,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1979440917, now seen corresponding path program 1 times [2025-03-19 22:52:53,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-19 22:52:53,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [657552338] [2025-03-19 22:52:53,512 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 22:52:53,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 22:52:53,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 22:52:53,514 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-19 22:52:53,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-19 22:52:53,580 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-19 22:52:53,600 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-19 22:52:53,601 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 22:52:53,601 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 22:52:53,605 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-19 22:52:53,607 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 22:52:53,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 22:52:53,681 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-19 22:52:53,681 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-19 22:52:53,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [657552338] [2025-03-19 22:52:53,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [657552338] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 22:52:53,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 22:52:53,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-19 22:52:53,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380249933] [2025-03-19 22:52:53,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 22:52:53,686 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-19 22:52:53,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-19 22:52:53,699 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-19 22:52:53,700 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-19 22:52:53,700 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 22:52:53,701 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 22:52:53,704 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-19 22:52:53,704 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 22:52:53,800 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 22:52:53,808 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-19 22:52:54,005 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 22:52:54,005 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 22:52:54,006 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 22:52:54,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1233868667, now seen corresponding path program 1 times [2025-03-19 22:52:54,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-19 22:52:54,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [855770359] [2025-03-19 22:52:54,006 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 22:52:54,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 22:52:54,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 22:52:54,008 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-19 22:52:54,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-19 22:52:54,071 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-19 22:52:54,090 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-19 22:52:54,090 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 22:52:54,090 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 22:52:54,093 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-19 22:52:54,094 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 22:52:54,143 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 22:52:54,143 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 22:52:54,250 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 22:52:54,250 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-19 22:52:54,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [855770359] [2025-03-19 22:52:54,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [855770359] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 22:52:54,250 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-19 22:52:54,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2025-03-19 22:52:54,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996085024] [2025-03-19 22:52:54,250 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-19 22:52:54,251 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-19 22:52:54,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-19 22:52:54,252 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-19 22:52:54,252 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2025-03-19 22:52:54,252 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 22:52:54,252 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 22:52:54,252 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-19 22:52:54,252 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 22:52:54,252 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 22:52:54,473 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 22:52:54,482 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-19 22:52:54,488 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-19 22:52:54,682 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 22:52:54,683 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 22:52:54,683 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 22:52:54,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1706440555, now seen corresponding path program 2 times [2025-03-19 22:52:54,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-19 22:52:54,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [731334090] [2025-03-19 22:52:54,684 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-19 22:52:54,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 22:52:54,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 22:52:54,686 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-19 22:52:54,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-19 22:52:54,742 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 18 statements into 2 equivalence classes. [2025-03-19 22:52:54,755 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 14 of 18 statements. [2025-03-19 22:52:54,756 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-19 22:52:54,756 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 22:52:54,759 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-19 22:52:54,760 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 22:52:54,777 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-19 22:52:54,780 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-19 22:52:54,780 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-19 22:52:54,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [731334090] [2025-03-19 22:52:54,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [731334090] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 22:52:54,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 22:52:54,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-19 22:52:54,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227767668] [2025-03-19 22:52:54,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 22:52:54,781 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-19 22:52:54,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-19 22:52:54,781 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-19 22:52:54,781 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-19 22:52:54,781 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 22:52:54,781 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 22:52:54,781 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-19 22:52:54,781 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 22:52:54,781 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-03-19 22:52:54,781 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 22:52:54,836 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 22:52:54,836 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-19 22:52:54,837 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 22:52:54,847 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-19 22:52:55,041 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 22:52:55,041 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 22:52:55,041 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 22:52:55,041 INFO L85 PathProgramCache]: Analyzing trace with hash 773762184, now seen corresponding path program 1 times [2025-03-19 22:52:55,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-19 22:52:55,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [398671890] [2025-03-19 22:52:55,042 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 22:52:55,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 22:52:55,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 22:52:55,044 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-19 22:52:55,044 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-19 22:52:55,093 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-19 22:52:55,130 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-19 22:52:55,130 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 22:52:55,130 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 22:52:55,137 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-19 22:52:55,138 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 22:52:55,223 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-19 22:52:55,223 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 22:52:55,439 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-19 22:52:55,440 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-19 22:52:55,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [398671890] [2025-03-19 22:52:55,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [398671890] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 22:52:55,441 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-19 22:52:55,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2025-03-19 22:52:55,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21903599] [2025-03-19 22:52:55,441 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-19 22:52:55,441 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-03-19 22:52:55,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-19 22:52:55,442 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-03-19 22:52:55,442 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2025-03-19 22:52:55,442 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 22:52:55,442 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 22:52:55,442 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-19 22:52:55,442 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 22:52:55,442 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-03-19 22:52:55,442 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 22:52:55,442 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 22:52:55,922 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 22:52:55,922 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-19 22:52:55,922 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 22:52:55,922 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-19 22:52:55,930 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-19 22:52:56,123 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 22:52:56,123 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 22:52:56,123 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 22:52:56,123 INFO L85 PathProgramCache]: Analyzing trace with hash -404348792, now seen corresponding path program 2 times [2025-03-19 22:52:56,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-19 22:52:56,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [719824661] [2025-03-19 22:52:56,124 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-19 22:52:56,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 22:52:56,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 22:52:56,125 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-19 22:52:56,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-19 22:52:56,175 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 25 statements into 2 equivalence classes. [2025-03-19 22:52:56,250 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 25 of 25 statements. [2025-03-19 22:52:56,250 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-19 22:52:56,250 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 22:52:56,258 INFO L256 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-03-19 22:52:56,260 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 22:52:56,443 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-19 22:52:56,443 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 22:52:56,979 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-19 22:52:56,979 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-19 22:52:56,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [719824661] [2025-03-19 22:52:56,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [719824661] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 22:52:56,979 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-19 22:52:56,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2025-03-19 22:52:56,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683022457] [2025-03-19 22:52:56,980 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-19 22:52:56,980 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2025-03-19 22:52:56,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-19 22:52:56,980 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2025-03-19 22:52:56,981 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=577, Unknown=0, NotChecked=0, Total=756 [2025-03-19 22:52:56,981 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 22:52:56,981 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 22:52:56,981 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 1.5357142857142858) internal successors, (43), 28 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-19 22:52:56,981 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 22:52:56,981 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-03-19 22:52:56,981 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 22:52:56,981 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2025-03-19 22:52:56,981 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 22:52:58,596 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 22:52:58,596 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-19 22:52:58,596 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 22:52:58,596 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-19 22:52:58,596 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2025-03-19 22:52:58,606 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-19 22:52:58,797 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 22:52:58,797 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 22:52:58,797 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 22:52:58,797 INFO L85 PathProgramCache]: Analyzing trace with hash -377485176, now seen corresponding path program 3 times [2025-03-19 22:52:58,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-19 22:52:58,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1994844386] [2025-03-19 22:52:58,798 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-19 22:52:58,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 22:52:58,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 22:52:58,801 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-19 22:52:58,801 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-19 22:52:58,858 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 37 statements into 12 equivalence classes. [2025-03-19 22:52:58,889 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 17 of 37 statements. [2025-03-19 22:52:58,889 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-19 22:52:58,889 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 22:52:58,892 INFO L256 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 27 conjuncts are in the unsatisfiable core [2025-03-19 22:52:58,898 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 22:52:58,943 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-03-19 22:52:59,958 INFO L325 Elim1Store]: treesize reduction 331, result has 23.6 percent of original size [2025-03-19 22:52:59,958 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 15 new quantified variables, introduced 45 case distinctions, treesize of input 393 treesize of output 319 [2025-03-19 22:53:00,520 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 22 proven. 22 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2025-03-19 22:53:00,520 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 22:54:13,884 WARN L286 SmtUtils]: Spent 44.42s on a formula simplification that was a NOOP. DAG size: 103 (called from [L 386] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2025-03-19 22:54:53,574 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 3105 treesize of output 2711 [2025-03-19 22:58:34,244 WARN L286 SmtUtils]: Spent 3.67m on a formula simplification that was a NOOP. DAG size: 3889 (called from [L 323] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2025-03-19 22:58:34,245 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-19 22:58:34,248 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 44 select indices, 44 select index equivalence classes, 0 disjoint index pairs (out of 946 index pairs), introduced 81 new quantified variables, introduced 946 case distinctions, treesize of input 144402 treesize of output 107204 [2025-03-19 22:59:26,861 WARN L286 SmtUtils]: Spent 52.60s on a formula simplification. DAG size of input: 5592 DAG size of output: 5613 (called from [L 726] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2025-03-19 22:59:36,929 WARN L286 SmtUtils]: Spent 9.84s on a formula simplification that was a NOOP. DAG size: 5457 (called from [L 726] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2025-03-19 22:59:50,213 WARN L286 SmtUtils]: Spent 8.75s on a formula simplification that was a NOOP. DAG size: 1836 (called from [L 726] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2025-03-19 23:00:07,953 WARN L286 SmtUtils]: Spent 8.95s on a formula simplification that was a NOOP. DAG size: 1832 (called from [L 726] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) Killed by 15