./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-nonblocking-cntr.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 559b036c Calling Ultimate with: /root/.sdkman/candidates/java/current/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_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/weaver/popl20-nonblocking-cntr.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 fe7fc3189e39cd6587b4d7d83621bd29f6e1c085e1b3af197b9abc1746b629ea --- Real Ultimate output --- This is Ultimate 0.2.3-?-559b036-m [2023-11-23 04:06:21,027 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 04:06:21,086 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2023-11-23 04:06:21,089 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 04:06:21,089 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 04:06:21,102 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 04:06:21,102 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 04:06:21,102 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 04:06:21,103 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 04:06:21,103 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 04:06:21,103 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 04:06:21,104 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 04:06:21,104 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 04:06:21,104 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 04:06:21,105 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 04:06:21,105 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 04:06:21,105 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 04:06:21,105 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 04:06:21,106 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 04:06:21,106 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 04:06:21,106 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 04:06:21,107 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 04:06:21,107 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 04:06:21,107 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 04:06:21,107 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 04:06:21,108 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 04:06:21,108 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 04:06:21,108 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 04:06:21,108 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 04:06:21,109 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 04:06:21,109 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 04:06:21,109 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 04:06:21,109 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 04:06:21,109 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 04:06:21,110 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2023-11-23 04:06:21,110 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 04:06:21,110 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 04:06:21,110 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-23 04:06:21,110 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 04:06:21,111 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-23 04:06:21,111 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-23 04:06:21,111 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe7fc3189e39cd6587b4d7d83621bd29f6e1c085e1b3af197b9abc1746b629ea [2023-11-23 04:06:21,302 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 04:06:21,323 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 04:06:21,325 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 04:06:21,325 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 04:06:21,326 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 04:06:21,327 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-nonblocking-cntr.wvr.c [2023-11-23 04:06:22,329 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 04:06:22,522 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 04:06:22,523 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-nonblocking-cntr.wvr.c [2023-11-23 04:06:22,536 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/0b29dd68c/9ea54716222543c9b2fb9f4fc1b0a8d5/FLAGe99514f10 [2023-11-23 04:06:22,548 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/0b29dd68c/9ea54716222543c9b2fb9f4fc1b0a8d5 [2023-11-23 04:06:22,550 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 04:06:22,551 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 04:06:22,552 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 04:06:22,552 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 04:06:22,556 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 04:06:22,556 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:06:22" (1/1) ... [2023-11-23 04:06:22,557 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50d0dc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:22, skipping insertion in model container [2023-11-23 04:06:22,557 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:06:22" (1/1) ... [2023-11-23 04:06:22,592 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 04:06:22,741 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-nonblocking-cntr.wvr.c[2063,2076] [2023-11-23 04:06:22,745 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 04:06:22,752 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 04:06:22,771 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-nonblocking-cntr.wvr.c[2063,2076] [2023-11-23 04:06:22,772 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 04:06:22,778 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 04:06:22,778 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 04:06:22,783 INFO L206 MainTranslator]: Completed translation [2023-11-23 04:06:22,784 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:22 WrapperNode [2023-11-23 04:06:22,784 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 04:06:22,784 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 04:06:22,785 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 04:06:22,785 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 04:06:22,789 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:22" (1/1) ... [2023-11-23 04:06:22,794 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:22" (1/1) ... [2023-11-23 04:06:22,805 INFO L138 Inliner]: procedures = 21, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 53 [2023-11-23 04:06:22,806 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 04:06:22,806 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 04:06:22,806 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 04:06:22,806 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 04:06:22,815 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:22" (1/1) ... [2023-11-23 04:06:22,815 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:22" (1/1) ... [2023-11-23 04:06:22,816 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:22" (1/1) ... [2023-11-23 04:06:22,816 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:22" (1/1) ... [2023-11-23 04:06:22,820 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:22" (1/1) ... [2023-11-23 04:06:22,835 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:22" (1/1) ... [2023-11-23 04:06:22,843 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:22" (1/1) ... [2023-11-23 04:06:22,845 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:22" (1/1) ... [2023-11-23 04:06:22,846 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 04:06:22,847 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 04:06:22,847 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 04:06:22,847 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 04:06:22,848 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:22" (1/1) ... [2023-11-23 04:06:22,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 04:06:22,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 04:06:22,880 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) [2023-11-23 04:06:22,897 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 [2023-11-23 04:06:22,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 04:06:22,914 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-23 04:06:22,914 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-23 04:06:22,914 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-23 04:06:22,914 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-23 04:06:22,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 04:06:22,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 04:06:22,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 04:06:22,915 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-23 04:06:22,915 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-23 04:06:22,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 04:06:22,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 04:06:22,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 04:06:22,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 04:06:22,916 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-23 04:06:22,977 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 04:06:22,979 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 04:06:23,095 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 04:06:23,231 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 04:06:23,232 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 04:06:23,232 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:06:23 BoogieIcfgContainer [2023-11-23 04:06:23,232 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 04:06:23,234 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 04:06:23,234 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 04:06:23,236 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 04:06:23,237 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:06:22" (1/3) ... [2023-11-23 04:06:23,237 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aba11f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:06:23, skipping insertion in model container [2023-11-23 04:06:23,237 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:22" (2/3) ... [2023-11-23 04:06:23,237 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aba11f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:06:23, skipping insertion in model container [2023-11-23 04:06:23,238 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:06:23" (3/3) ... [2023-11-23 04:06:23,239 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-nonblocking-cntr.wvr.c [2023-11-23 04:06:23,244 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-23 04:06:23,252 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 04:06:23,252 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 04:06:23,252 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-23 04:06:23,292 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-23 04:06:23,334 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 04:06:23,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-23 04:06:23,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 04:06:23,349 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) [2023-11-23 04:06:23,351 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 [2023-11-23 04:06:23,374 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-23 04:06:23,383 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-11-23 04:06:23,388 INFO L357 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, mHoare=true, 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;@481c82b3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 04:06:23,388 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-23 04:06:23,508 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-23 04:06:23,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 04:06:23,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1855035045, now seen corresponding path program 1 times [2023-11-23 04:06:23,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 04:06:23,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836459689] [2023-11-23 04:06:23,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 04:06:23,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 04:06:23,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 04:06:23,820 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 04:06:23,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 04:06:23,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836459689] [2023-11-23 04:06:23,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836459689] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 04:06:23,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 04:06:23,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 04:06:23,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055849253] [2023-11-23 04:06:23,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 04:06:23,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 04:06:23,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 04:06:23,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 04:06:23,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 04:06:23,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 04:06:23,853 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 04:06:23,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 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) [2023-11-23 04:06:23,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 04:06:23,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 04:06:23,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 04:06:23,916 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-23 04:06:23,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 04:06:23,917 INFO L85 PathProgramCache]: Analyzing trace with hash 243195991, now seen corresponding path program 1 times [2023-11-23 04:06:23,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 04:06:23,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051005249] [2023-11-23 04:06:23,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 04:06:23,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 04:06:23,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 04:06:24,166 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 04:06:24,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 04:06:24,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051005249] [2023-11-23 04:06:24,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051005249] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 04:06:24,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [127433221] [2023-11-23 04:06:24,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 04:06:24,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 04:06:24,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 04:06:24,213 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) [2023-11-23 04:06:24,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 04:06:24,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 04:06:24,289 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 04:06:24,292 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 04:06:24,466 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 04:06:24,466 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 04:06:24,678 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 04:06:24,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [127433221] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 04:06:24,680 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 04:06:24,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 7] total 19 [2023-11-23 04:06:24,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037559892] [2023-11-23 04:06:24,681 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 04:06:24,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-23 04:06:24,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 04:06:24,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-23 04:06:24,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2023-11-23 04:06:24,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 04:06:24,688 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 04:06:24,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 19 states have internal predecessors, (50), 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) [2023-11-23 04:06:24,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 04:06:24,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 04:06:25,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 04:06:25,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-23 04:06:25,108 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 04:06:25,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-23 04:06:25,292 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-23 04:06:25,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 04:06:25,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1587583017, now seen corresponding path program 2 times [2023-11-23 04:06:25,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 04:06:25,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896905001] [2023-11-23 04:06:25,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 04:06:25,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 04:06:25,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 04:06:25,527 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-23 04:06:25,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 04:06:25,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896905001] [2023-11-23 04:06:25,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896905001] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 04:06:25,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [719625014] [2023-11-23 04:06:25,529 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 04:06:25,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 04:06:25,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 04:06:25,530 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) [2023-11-23 04:06:25,552 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 04:06:25,602 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 04:06:25,603 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 04:06:25,604 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-23 04:06:25,606 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 04:06:25,657 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-23 04:06:25,657 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 04:06:26,016 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 30 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 04:06:26,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [719625014] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 04:06:26,020 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 04:06:26,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 10] total 12 [2023-11-23 04:06:26,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962499119] [2023-11-23 04:06:26,020 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 04:06:26,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-23 04:06:26,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 04:06:26,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-23 04:06:26,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2023-11-23 04:06:26,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 04:06:26,023 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 04:06:26,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.769230769230769) internal successors, (49), 12 states have internal predecessors, (49), 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) [2023-11-23 04:06:26,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 04:06:26,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-11-23 04:06:26,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 04:06:26,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 04:06:26,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-23 04:06:26,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 04:06:26,126 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 04:06:26,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 04:06:26,320 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-23 04:06:26,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 04:06:26,321 INFO L85 PathProgramCache]: Analyzing trace with hash 425742633, now seen corresponding path program 3 times [2023-11-23 04:06:26,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 04:06:26,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269870242] [2023-11-23 04:06:26,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 04:06:26,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 04:06:26,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 04:06:26,695 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 19 proven. 44 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 04:06:26,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 04:06:26,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269870242] [2023-11-23 04:06:26,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269870242] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 04:06:26,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1471063397] [2023-11-23 04:06:26,696 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-23 04:06:26,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 04:06:26,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 04:06:26,697 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) [2023-11-23 04:06:26,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 04:06:26,768 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-11-23 04:06:26,768 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 04:06:26,769 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-23 04:06:26,771 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 04:06:27,185 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 12 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 04:06:27,185 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 04:06:27,562 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 30 proven. 28 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-23 04:06:27,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1471063397] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 04:06:27,563 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 04:06:27,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16, 14] total 44 [2023-11-23 04:06:27,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30656428] [2023-11-23 04:06:27,563 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 04:06:27,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2023-11-23 04:06:27,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 04:06:27,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2023-11-23 04:06:27,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=356, Invalid=1536, Unknown=0, NotChecked=0, Total=1892 [2023-11-23 04:06:27,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 04:06:27,566 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 04:06:27,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 2.409090909090909) internal successors, (106), 44 states have internal predecessors, (106), 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) [2023-11-23 04:06:27,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 04:06:27,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-11-23 04:06:27,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-23 04:06:27,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 04:06:29,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 04:06:29,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-23 04:06:29,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 04:06:29,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2023-11-23 04:06:29,042 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 04:06:29,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 04:06:29,229 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-23 04:06:29,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 04:06:29,230 INFO L85 PathProgramCache]: Analyzing trace with hash 388360341, now seen corresponding path program 4 times [2023-11-23 04:06:29,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 04:06:29,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589449904] [2023-11-23 04:06:29,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 04:06:29,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 04:06:29,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 04:06:29,511 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 34 proven. 68 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-23 04:06:29,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 04:06:29,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589449904] [2023-11-23 04:06:29,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589449904] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 04:06:29,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [853545079] [2023-11-23 04:06:29,512 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-23 04:06:29,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 04:06:29,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 04:06:29,513 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) [2023-11-23 04:06:29,514 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-23 04:06:29,559 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-23 04:06:29,560 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 04:06:29,560 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-23 04:06:29,562 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 04:06:29,952 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 34 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 04:06:29,953 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 04:06:30,225 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 40 proven. 53 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-23 04:06:30,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [853545079] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 04:06:30,229 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 04:06:30,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17, 13] total 41 [2023-11-23 04:06:30,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849292208] [2023-11-23 04:06:30,230 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 04:06:30,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2023-11-23 04:06:30,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 04:06:30,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2023-11-23 04:06:30,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=377, Invalid=1263, Unknown=0, NotChecked=0, Total=1640 [2023-11-23 04:06:30,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 04:06:30,233 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 04:06:30,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 2.6097560975609757) internal successors, (107), 41 states have internal predecessors, (107), 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) [2023-11-23 04:06:30,234 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 04:06:30,234 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-11-23 04:06:30,234 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-23 04:06:30,234 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2023-11-23 04:06:30,234 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 04:06:31,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 04:06:31,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-23 04:06:31,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 04:06:31,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2023-11-23 04:06:31,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-11-23 04:06:31,156 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-23 04:06:31,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 04:06:31,352 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-23 04:06:31,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 04:06:31,353 INFO L85 PathProgramCache]: Analyzing trace with hash -262134571, now seen corresponding path program 5 times [2023-11-23 04:06:31,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 04:06:31,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972042839] [2023-11-23 04:06:31,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 04:06:31,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 04:06:31,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 04:06:31,628 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 6 proven. 51 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-23 04:06:31,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 04:06:31,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972042839] [2023-11-23 04:06:31,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972042839] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 04:06:31,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [475535862] [2023-11-23 04:06:31,629 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-23 04:06:31,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 04:06:31,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 04:06:31,630 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) [2023-11-23 04:06:31,675 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-23 04:06:31,715 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2023-11-23 04:06:31,715 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 04:06:31,716 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-23 04:06:31,718 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 04:06:31,770 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 6 proven. 26 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-23 04:06:31,770 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 04:06:31,910 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 11 proven. 21 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-23 04:06:31,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [475535862] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 04:06:31,911 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 04:06:31,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5, 5] total 17 [2023-11-23 04:06:31,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870964479] [2023-11-23 04:06:31,911 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 04:06:31,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-23 04:06:31,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 04:06:31,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-23 04:06:31,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2023-11-23 04:06:31,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 04:06:31,917 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 04:06:31,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.111111111111111) internal successors, (56), 17 states have internal predecessors, (56), 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) [2023-11-23 04:06:31,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 04:06:31,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-11-23 04:06:31,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-23 04:06:31,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2023-11-23 04:06:31,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2023-11-23 04:06:31,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 04:06:32,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 04:06:32,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-23 04:06:32,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 04:06:32,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2023-11-23 04:06:32,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-11-23 04:06:32,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-23 04:06:32,203 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-23 04:06:32,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 04:06:32,394 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-23 04:06:32,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 04:06:32,395 INFO L85 PathProgramCache]: Analyzing trace with hash -880587349, now seen corresponding path program 6 times [2023-11-23 04:06:32,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 04:06:32,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249306679] [2023-11-23 04:06:32,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 04:06:32,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 04:06:32,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 04:06:32,996 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 16 proven. 212 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-11-23 04:06:32,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 04:06:32,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249306679] [2023-11-23 04:06:32,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249306679] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 04:06:32,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1349897507] [2023-11-23 04:06:32,996 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-23 04:06:32,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 04:06:32,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 04:06:32,998 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) [2023-11-23 04:06:33,026 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-23 04:06:33,063 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2023-11-23 04:06:33,063 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 04:06:33,065 INFO L262 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 43 conjunts are in the unsatisfiable core [2023-11-23 04:06:33,067 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 04:06:33,770 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 9 proven. 255 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 04:06:33,770 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 04:06:35,940 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 96 proven. 170 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 04:06:35,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1349897507] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 04:06:35,940 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 04:06:35,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 33, 34] total 84 [2023-11-23 04:06:35,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717241874] [2023-11-23 04:06:35,941 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 04:06:35,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 85 states [2023-11-23 04:06:35,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 04:06:35,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2023-11-23 04:06:35,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1412, Invalid=5728, Unknown=0, NotChecked=0, Total=7140 [2023-11-23 04:06:35,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 04:06:35,946 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 04:06:35,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 85 states, 85 states have (on average 2.023529411764706) internal successors, (172), 84 states have internal predecessors, (172), 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) [2023-11-23 04:06:35,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 04:06:35,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-11-23 04:06:35,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-23 04:06:35,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2023-11-23 04:06:35,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2023-11-23 04:06:35,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2023-11-23 04:06:35,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 04:06:39,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 04:06:39,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-23 04:06:39,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 04:06:39,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2023-11-23 04:06:39,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2023-11-23 04:06:39,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-23 04:06:39,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2023-11-23 04:06:39,638 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-11-23 04:06:39,639 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-11-23 04:06:39,639 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-11-23 04:06:39,650 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-23 04:06:39,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-23 04:06:39,844 INFO L445 BasicCegarLoop]: Path program histogram: [6, 1] [2023-11-23 04:06:39,846 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-23 04:06:39,846 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 04:06:39,848 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 04:06:39 BasicIcfg [2023-11-23 04:06:39,848 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 04:06:39,848 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 04:06:39,848 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 04:06:39,848 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 04:06:39,849 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:06:23" (3/4) ... [2023-11-23 04:06:39,850 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 04:06:39,852 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-23 04:06:39,852 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-23 04:06:39,856 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 48 nodes and edges [2023-11-23 04:06:39,856 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-11-23 04:06:39,856 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-23 04:06:39,856 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-23 04:06:39,931 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.graphml [2023-11-23 04:06:39,931 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.yml [2023-11-23 04:06:39,932 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 04:06:39,932 INFO L158 Benchmark]: Toolchain (without parser) took 17381.07ms. Allocated memory was 155.2MB in the beginning and 471.9MB in the end (delta: 316.7MB). Free memory was 126.8MB in the beginning and 256.9MB in the end (delta: -130.1MB). Peak memory consumption was 187.0MB. Max. memory is 16.1GB. [2023-11-23 04:06:39,932 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 155.2MB. Free memory was 129.5MB in the beginning and 129.4MB in the end (delta: 87.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 04:06:39,933 INFO L158 Benchmark]: CACSL2BoogieTranslator took 232.01ms. Allocated memory is still 155.2MB. Free memory was 126.4MB in the beginning and 115.5MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-23 04:06:39,933 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.36ms. Allocated memory is still 155.2MB. Free memory was 115.5MB in the beginning and 113.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 04:06:39,933 INFO L158 Benchmark]: Boogie Preprocessor took 40.19ms. Allocated memory is still 155.2MB. Free memory was 113.8MB in the beginning and 112.9MB in the end (delta: 905.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 04:06:39,933 INFO L158 Benchmark]: RCFGBuilder took 385.54ms. Allocated memory is still 155.2MB. Free memory was 112.6MB in the beginning and 87.0MB in the end (delta: 25.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-23 04:06:39,933 INFO L158 Benchmark]: TraceAbstraction took 16614.11ms. Allocated memory was 155.2MB in the beginning and 471.9MB in the end (delta: 316.7MB). Free memory was 86.6MB in the beginning and 262.2MB in the end (delta: -175.6MB). Peak memory consumption was 143.0MB. Max. memory is 16.1GB. [2023-11-23 04:06:39,934 INFO L158 Benchmark]: Witness Printer took 83.54ms. Allocated memory is still 471.9MB. Free memory was 262.2MB in the beginning and 256.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 04:06:39,935 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 155.2MB. Free memory was 129.5MB in the beginning and 129.4MB in the end (delta: 87.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 232.01ms. Allocated memory is still 155.2MB. Free memory was 126.4MB in the beginning and 115.5MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.36ms. Allocated memory is still 155.2MB. Free memory was 115.5MB in the beginning and 113.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.19ms. Allocated memory is still 155.2MB. Free memory was 113.8MB in the beginning and 112.9MB in the end (delta: 905.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 385.54ms. Allocated memory is still 155.2MB. Free memory was 112.6MB in the beginning and 87.0MB in the end (delta: 25.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 16614.11ms. Allocated memory was 155.2MB in the beginning and 471.9MB in the end (delta: 316.7MB). Free memory was 86.6MB in the beginning and 262.2MB in the end (delta: -175.6MB). Peak memory consumption was 143.0MB. Max. memory is 16.1GB. * Witness Printer took 83.54ms. Allocated memory is still 471.9MB. Free memory was 262.2MB in the beginning and 256.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 5545, independent: 4355, independent conditional: 4160, independent unconditional: 195, dependent: 1190, dependent conditional: 1182, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4451, independent: 4355, independent conditional: 4160, independent unconditional: 195, dependent: 96, dependent conditional: 88, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 4451, independent: 4355, independent conditional: 4160, independent unconditional: 195, dependent: 96, dependent conditional: 88, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5289, independent: 4355, independent conditional: 245, independent unconditional: 4110, dependent: 934, dependent conditional: 593, dependent unconditional: 341, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 5289, independent: 4355, independent conditional: 245, independent unconditional: 4110, dependent: 934, dependent conditional: 508, dependent unconditional: 426, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 5289, independent: 4355, independent conditional: 245, independent unconditional: 4110, dependent: 934, dependent conditional: 508, dependent unconditional: 426, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 246, independent: 197, independent conditional: 27, independent unconditional: 170, dependent: 49, dependent conditional: 41, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 246, independent: 169, independent conditional: 0, independent unconditional: 169, dependent: 77, dependent conditional: 0, dependent unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 77, independent: 28, independent conditional: 27, independent unconditional: 1, dependent: 49, dependent conditional: 41, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 77, independent: 28, independent conditional: 27, independent unconditional: 1, dependent: 49, dependent conditional: 41, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 208, independent: 85, independent conditional: 56, independent unconditional: 29, dependent: 123, dependent conditional: 70, dependent unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 5289, independent: 4158, independent conditional: 218, independent unconditional: 3940, dependent: 885, dependent conditional: 467, dependent unconditional: 418, unknown: 246, unknown conditional: 68, unknown unconditional: 178] , Statistics on independence cache: Total cache size (in pairs): 246, Positive cache size: 197, Positive conditional cache size: 27, Positive unconditional cache size: 170, Negative cache size: 49, Negative conditional cache size: 41, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 85, Maximal queried relation: 7, Independence queries for same thread: 1094 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.1s, Number of persistent set computation: 57, Number of trivial persistent sets: 48, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 203, independent: 195, independent conditional: 0, independent unconditional: 195, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 5545, independent: 4355, independent conditional: 4160, independent unconditional: 195, dependent: 1190, dependent conditional: 1182, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4451, independent: 4355, independent conditional: 4160, independent unconditional: 195, dependent: 96, dependent conditional: 88, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 4451, independent: 4355, independent conditional: 4160, independent unconditional: 195, dependent: 96, dependent conditional: 88, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5289, independent: 4355, independent conditional: 245, independent unconditional: 4110, dependent: 934, dependent conditional: 593, dependent unconditional: 341, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 5289, independent: 4355, independent conditional: 245, independent unconditional: 4110, dependent: 934, dependent conditional: 508, dependent unconditional: 426, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 5289, independent: 4355, independent conditional: 245, independent unconditional: 4110, dependent: 934, dependent conditional: 508, dependent unconditional: 426, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 246, independent: 197, independent conditional: 27, independent unconditional: 170, dependent: 49, dependent conditional: 41, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 246, independent: 169, independent conditional: 0, independent unconditional: 169, dependent: 77, dependent conditional: 0, dependent unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 77, independent: 28, independent conditional: 27, independent unconditional: 1, dependent: 49, dependent conditional: 41, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 77, independent: 28, independent conditional: 27, independent unconditional: 1, dependent: 49, dependent conditional: 41, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 208, independent: 85, independent conditional: 56, independent unconditional: 29, dependent: 123, dependent conditional: 70, dependent unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 5289, independent: 4158, independent conditional: 218, independent unconditional: 3940, dependent: 885, dependent conditional: 467, dependent unconditional: 418, unknown: 246, unknown conditional: 68, unknown unconditional: 178] , Statistics on independence cache: Total cache size (in pairs): 246, Positive cache size: 197, Positive conditional cache size: 27, Positive unconditional cache size: 170, Negative cache size: 49, Negative conditional cache size: 41, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 85, Maximal queried relation: 7, Independence queries for same thread: 1094 - PositiveResult [Line: 77]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 32 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 16.5s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 6, EmptinessCheckTime: 7.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 304, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 7.4s InterpolantComputationTime, 521 NumberOfCodeBlocks, 518 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 754 ConstructedInterpolants, 0 QuantifiedInterpolants, 6449 SizeOfPredicates, 47 NumberOfNonLiveVariables, 876 ConjunctsInSsa, 120 ConjunctsInUnsatCore, 19 InterpolantComputations, 1 PerfectInterpolantSequences, 613/1717 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-23 04:06:39,965 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2023-11-23 04:06:40,166 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE