./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-counter-queue.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/bin/ugemcutter-verify-ztSkJzofpW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/bin/ugemcutter-verify-ztSkJzofpW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/bin/ugemcutter-verify-ztSkJzofpW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/bin/ugemcutter-verify-ztSkJzofpW/config/GemCutterReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-counter-queue.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/bin/ugemcutter-verify-ztSkJzofpW/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/bin/ugemcutter-verify-ztSkJzofpW --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 ebdf94362dc31684fc6d7640230484df679da941d20fe978f9edfe1d75c48a51 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-17 22:46:43,632 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-17 22:46:43,767 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/bin/ugemcutter-verify-ztSkJzofpW/config/svcomp-Reach-32bit-GemCutter_Default.epf [2023-11-17 22:46:43,773 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-17 22:46:43,774 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-17 22:46:43,824 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-17 22:46:43,825 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-17 22:46:43,825 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-17 22:46:43,826 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-17 22:46:43,831 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-17 22:46:43,833 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-17 22:46:43,833 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-17 22:46:43,834 INFO L153 SettingsManager]: * Use SBE=true [2023-11-17 22:46:43,836 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-17 22:46:43,836 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-17 22:46:43,837 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-17 22:46:43,837 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-17 22:46:43,837 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-17 22:46:43,838 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-17 22:46:43,838 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-17 22:46:43,839 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-17 22:46:43,839 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-17 22:46:43,840 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-17 22:46:43,840 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-17 22:46:43,840 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-17 22:46:43,841 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-17 22:46:43,842 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-17 22:46:43,843 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-17 22:46:43,844 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 22:46:43,844 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-17 22:46:43,846 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-17 22:46:43,846 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-17 22:46:43,846 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-17 22:46:43,846 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2023-11-17 22:46:43,847 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-17 22:46:43,847 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-17 22:46:43,847 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-17 22:46:43,847 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-17 22:46:43,848 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-17 22:46:43,848 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-17 22:46:43,848 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/bin/ugemcutter-verify-ztSkJzofpW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/bin/ugemcutter-verify-ztSkJzofpW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebdf94362dc31684fc6d7640230484df679da941d20fe978f9edfe1d75c48a51 [2023-11-17 22:46:44,165 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-17 22:46:44,200 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-17 22:46:44,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-17 22:46:44,204 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-17 22:46:44,204 INFO L274 PluginConnector]: CDTParser initialized [2023-11-17 22:46:44,206 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/bin/ugemcutter-verify-ztSkJzofpW/../../sv-benchmarks/c/weaver/popl20-bad-counter-queue.wvr.c [2023-11-17 22:46:47,173 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-17 22:46:47,487 INFO L384 CDTParser]: Found 1 translation units. [2023-11-17 22:46:47,487 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/sv-benchmarks/c/weaver/popl20-bad-counter-queue.wvr.c [2023-11-17 22:46:47,496 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/bin/ugemcutter-verify-ztSkJzofpW/data/db60786de/18458873763f416f844297558a333d10/FLAGa361edf4c [2023-11-17 22:46:47,511 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/bin/ugemcutter-verify-ztSkJzofpW/data/db60786de/18458873763f416f844297558a333d10 [2023-11-17 22:46:47,514 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-17 22:46:47,516 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-17 22:46:47,517 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-17 22:46:47,517 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-17 22:46:47,523 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-17 22:46:47,524 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 10:46:47" (1/1) ... [2023-11-17 22:46:47,525 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d9f80a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:46:47, skipping insertion in model container [2023-11-17 22:46:47,525 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 10:46:47" (1/1) ... [2023-11-17 22:46:47,551 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-17 22:46:47,730 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/sv-benchmarks/c/weaver/popl20-bad-counter-queue.wvr.c[2454,2467] [2023-11-17 22:46:47,751 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 22:46:47,761 INFO L202 MainTranslator]: Completed pre-run [2023-11-17 22:46:47,801 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/sv-benchmarks/c/weaver/popl20-bad-counter-queue.wvr.c[2454,2467] [2023-11-17 22:46:47,810 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 22:46:47,826 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 22:46:47,826 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 22:46:47,835 INFO L206 MainTranslator]: Completed translation [2023-11-17 22:46:47,836 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:46:47 WrapperNode [2023-11-17 22:46:47,837 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-17 22:46:47,838 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-17 22:46:47,839 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-17 22:46:47,839 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-17 22:46:47,848 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:46:47" (1/1) ... [2023-11-17 22:46:47,871 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:46:47" (1/1) ... [2023-11-17 22:46:47,917 INFO L138 Inliner]: procedures = 26, calls = 40, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 150 [2023-11-17 22:46:47,917 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-17 22:46:47,918 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-17 22:46:47,918 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-17 22:46:47,918 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-17 22:46:47,928 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:46:47" (1/1) ... [2023-11-17 22:46:47,929 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:46:47" (1/1) ... [2023-11-17 22:46:47,945 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:46:47" (1/1) ... [2023-11-17 22:46:47,950 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:46:47" (1/1) ... [2023-11-17 22:46:47,957 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:46:47" (1/1) ... [2023-11-17 22:46:47,970 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:46:47" (1/1) ... [2023-11-17 22:46:47,973 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:46:47" (1/1) ... [2023-11-17 22:46:47,984 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:46:47" (1/1) ... [2023-11-17 22:46:47,987 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-17 22:46:47,988 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-17 22:46:47,988 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-17 22:46:47,988 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-17 22:46:47,989 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:46:47" (1/1) ... [2023-11-17 22:46:47,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 22:46:48,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:46:48,026 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/bin/ugemcutter-verify-ztSkJzofpW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-17 22:46:48,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/bin/ugemcutter-verify-ztSkJzofpW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-17 22:46:48,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-17 22:46:48,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-17 22:46:48,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-17 22:46:48,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-17 22:46:48,072 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-17 22:46:48,072 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-17 22:46:48,072 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-17 22:46:48,073 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-17 22:46:48,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-17 22:46:48,073 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-17 22:46:48,073 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-17 22:46:48,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-17 22:46:48,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-17 22:46:48,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-17 22:46:48,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-17 22:46:48,076 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-17 22:46:48,189 INFO L236 CfgBuilder]: Building ICFG [2023-11-17 22:46:48,191 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-17 22:46:48,468 INFO L277 CfgBuilder]: Performing block encoding [2023-11-17 22:46:48,690 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-17 22:46:48,690 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-17 22:46:48,694 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 10:46:48 BoogieIcfgContainer [2023-11-17 22:46:48,694 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-17 22:46:48,697 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-17 22:46:48,697 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-17 22:46:48,700 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-17 22:46:48,700 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 10:46:47" (1/3) ... [2023-11-17 22:46:48,701 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1004556a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 10:46:48, skipping insertion in model container [2023-11-17 22:46:48,701 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:46:47" (2/3) ... [2023-11-17 22:46:48,702 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1004556a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 10:46:48, skipping insertion in model container [2023-11-17 22:46:48,702 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 10:46:48" (3/3) ... [2023-11-17 22:46:48,703 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-counter-queue.wvr.c [2023-11-17 22:46:48,712 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-17 22:46:48,724 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-17 22:46:48,724 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-17 22:46:48,725 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-17 22:46:48,783 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-17 22:46:48,869 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 22:46:48,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-17 22:46:48,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:46:48,876 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-17 22:46:48,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-11-17 22:46:48,930 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-17 22:46:48,961 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-11-17 22:46:48,967 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;@52e9f556, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 22:46:48,967 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-17 22:46:49,316 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-17 22:46:49,325 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:46:49,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1967454818, now seen corresponding path program 1 times [2023-11-17 22:46:49,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:46:49,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142274737] [2023-11-17 22:46:49,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:46:49,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:46:49,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:46:49,663 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-17 22:46:49,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:46:49,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142274737] [2023-11-17 22:46:49,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142274737] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:46:49,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 22:46:49,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-17 22:46:49,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649184380] [2023-11-17 22:46:49,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:46:49,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-17 22:46:49,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:46:49,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-17 22:46:49,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-17 22:46:49,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:46:49,712 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:46:49,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 45.5) internal successors, (91), 2 states have internal predecessors, (91), 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) [2023-11-17 22:46:49,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:46:49,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:46:49,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-17 22:46:49,802 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-17 22:46:49,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:46:49,803 INFO L85 PathProgramCache]: Analyzing trace with hash -75808730, now seen corresponding path program 1 times [2023-11-17 22:46:49,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:46:49,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427390005] [2023-11-17 22:46:49,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:46:49,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:46:49,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:46:50,346 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:46:50,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:46:50,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427390005] [2023-11-17 22:46:50,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427390005] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:46:50,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 22:46:50,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-17 22:46:50,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206193466] [2023-11-17 22:46:50,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:46:50,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-17 22:46:50,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:46:50,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-17 22:46:50,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-17 22:46:50,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:46:50,352 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:46:50,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 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) [2023-11-17 22:46:50,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:46:50,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:46:50,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:46:50,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:46:50,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-17 22:46:50,497 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-17 22:46:50,498 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:46:50,498 INFO L85 PathProgramCache]: Analyzing trace with hash -710464981, now seen corresponding path program 1 times [2023-11-17 22:46:50,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:46:50,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808316613] [2023-11-17 22:46:50,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:46:50,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:46:50,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:46:50,795 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:46:50,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:46:50,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808316613] [2023-11-17 22:46:50,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808316613] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 22:46:50,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [404842411] [2023-11-17 22:46:50,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:46:50,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:46:50,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:46:50,829 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 22:46:50,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-17 22:46:50,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:46:50,961 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-17 22:46:50,970 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:46:51,223 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:46:51,233 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 22:46:51,509 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:46:51,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [404842411] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-17 22:46:51,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-17 22:46:51,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2023-11-17 22:46:51,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622801172] [2023-11-17 22:46:51,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:46:51,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-17 22:46:51,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:46:51,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-17 22:46:51,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2023-11-17 22:46:51,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:46:51,518 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:46:51,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 7 states have internal predecessors, (96), 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) [2023-11-17 22:46:51,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:46:51,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:46:51,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:46:51,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:46:51,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:46:51,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:46:51,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-17 22:46:51,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:46:51,860 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-17 22:46:51,861 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:46:51,861 INFO L85 PathProgramCache]: Analyzing trace with hash -2052312937, now seen corresponding path program 1 times [2023-11-17 22:46:51,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:46:51,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011028553] [2023-11-17 22:46:51,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:46:51,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:46:51,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:46:52,294 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:46:52,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:46:52,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011028553] [2023-11-17 22:46:52,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011028553] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 22:46:52,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [16455813] [2023-11-17 22:46:52,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:46:52,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:46:52,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:46:52,308 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 22:46:52,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-17 22:46:52,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:46:52,453 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-17 22:46:52,460 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:46:52,794 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:46:52,795 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 22:46:53,109 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:46:53,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [16455813] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 22:46:53,110 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 22:46:53,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2023-11-17 22:46:53,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68696195] [2023-11-17 22:46:53,111 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 22:46:53,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-17 22:46:53,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:46:53,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-17 22:46:53,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=434, Unknown=0, NotChecked=0, Total=552 [2023-11-17 22:46:53,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:46:53,115 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:46:53,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 7.875) internal successors, (189), 24 states have internal predecessors, (189), 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) [2023-11-17 22:46:53,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:46:53,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:46:53,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:46:53,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:46:53,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:46:53,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:46:53,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:46:53,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-17 22:46:53,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-17 22:46:53,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:46:53,696 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-17 22:46:53,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:46:53,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1413749220, now seen corresponding path program 2 times [2023-11-17 22:46:53,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:46:53,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016291649] [2023-11-17 22:46:53,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:46:53,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:46:53,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:46:54,043 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 2 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:46:54,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:46:54,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016291649] [2023-11-17 22:46:54,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016291649] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 22:46:54,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1492307310] [2023-11-17 22:46:54,044 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-17 22:46:54,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:46:54,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:46:54,046 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 22:46:54,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-17 22:46:54,180 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-17 22:46:54,180 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 22:46:54,182 INFO L262 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-17 22:46:54,195 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:46:54,387 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-17 22:46:54,388 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 22:46:54,518 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-17 22:46:54,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1492307310] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 22:46:54,519 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 22:46:54,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 8] total 22 [2023-11-17 22:46:54,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001110757] [2023-11-17 22:46:54,520 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 22:46:54,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-17 22:46:54,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:46:54,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-17 22:46:54,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2023-11-17 22:46:54,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:46:54,526 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:46:54,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 9.318181818181818) internal successors, (205), 22 states have internal predecessors, (205), 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) [2023-11-17 22:46:54,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:46:54,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:46:54,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:46:54,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-11-17 22:46:54,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:46:55,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:46:55,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:46:55,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:46:55,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-17 22:46:55,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-11-17 22:46:55,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-17 22:46:55,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:46:55,866 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-17 22:46:55,867 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:46:55,867 INFO L85 PathProgramCache]: Analyzing trace with hash -200079174, now seen corresponding path program 3 times [2023-11-17 22:46:55,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:46:55,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412575405] [2023-11-17 22:46:55,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:46:55,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:46:55,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:46:56,373 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 61 proven. 16 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-17 22:46:56,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:46:56,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412575405] [2023-11-17 22:46:56,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412575405] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 22:46:56,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1959425387] [2023-11-17 22:46:56,374 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-17 22:46:56,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:46:56,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:46:56,376 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 22:46:56,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-17 22:46:56,543 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-11-17 22:46:56,544 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 22:46:56,546 INFO L262 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-17 22:46:56,550 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:46:56,937 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 78 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-17 22:46:56,937 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 22:46:57,367 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 78 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-17 22:46:57,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1959425387] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 22:46:57,368 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 22:46:57,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 37 [2023-11-17 22:46:57,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856093741] [2023-11-17 22:46:57,369 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 22:46:57,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-11-17 22:46:57,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:46:57,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-11-17 22:46:57,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=1122, Unknown=0, NotChecked=0, Total=1332 [2023-11-17 22:46:57,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:46:57,372 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:46:57,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 7.243243243243243) internal successors, (268), 37 states have internal predecessors, (268), 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) [2023-11-17 22:46:57,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:46:57,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:46:57,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:46:57,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-11-17 22:46:57,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2023-11-17 22:46:57,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:46:57,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:46:57,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:46:57,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:46:57,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-17 22:46:57,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-11-17 22:46:57,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-17 22:46:57,895 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-17 22:46:58,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:46:58,069 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-17 22:46:58,070 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:46:58,070 INFO L85 PathProgramCache]: Analyzing trace with hash 859009663, now seen corresponding path program 4 times [2023-11-17 22:46:58,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:46:58,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338423683] [2023-11-17 22:46:58,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:46:58,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:46:58,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:46:58,845 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 70 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:46:58,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:46:58,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338423683] [2023-11-17 22:46:58,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338423683] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 22:46:58,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [552964180] [2023-11-17 22:46:58,846 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-17 22:46:58,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:46:58,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:46:58,848 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 22:46:58,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-17 22:46:58,977 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-17 22:46:58,977 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 22:46:58,979 INFO L262 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-17 22:46:58,984 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:46:59,545 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 80 proven. 27 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-17 22:46:59,545 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 22:47:00,114 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 80 proven. 27 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-17 22:47:00,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [552964180] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 22:47:00,115 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 22:47:00,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 19, 19] total 46 [2023-11-17 22:47:00,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394574997] [2023-11-17 22:47:00,116 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 22:47:00,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-11-17 22:47:00,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:47:00,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-11-17 22:47:00,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=333, Invalid=1737, Unknown=0, NotChecked=0, Total=2070 [2023-11-17 22:47:00,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:00,121 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:47:00,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 6.456521739130435) internal successors, (297), 46 states have internal predecessors, (297), 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) [2023-11-17 22:47:00,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:00,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:47:00,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:47:00,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-11-17 22:47:00,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2023-11-17 22:47:00,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-11-17 22:47:00,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:00,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:00,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:47:00,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:47:00,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-17 22:47:00,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-11-17 22:47:00,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-17 22:47:00,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-17 22:47:00,736 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-17 22:47:00,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:47:00,912 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-17 22:47:00,913 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:47:00,913 INFO L85 PathProgramCache]: Analyzing trace with hash 2089043780, now seen corresponding path program 5 times [2023-11-17 22:47:00,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:47:00,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744042281] [2023-11-17 22:47:00,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:47:00,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:47:00,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:47:01,630 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 40 proven. 95 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-17 22:47:01,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:47:01,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744042281] [2023-11-17 22:47:01,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744042281] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 22:47:01,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1717863051] [2023-11-17 22:47:01,631 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-17 22:47:01,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:47:01,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:47:01,632 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 22:47:01,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-17 22:47:01,787 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2023-11-17 22:47:01,787 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 22:47:01,789 INFO L262 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-17 22:47:01,793 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:47:02,250 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 29 proven. 56 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2023-11-17 22:47:02,251 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 22:47:02,480 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 31 proven. 26 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-11-17 22:47:02,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1717863051] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 22:47:02,481 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 22:47:02,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 17, 10] total 38 [2023-11-17 22:47:02,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127699706] [2023-11-17 22:47:02,482 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 22:47:02,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-11-17 22:47:02,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:47:02,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-11-17 22:47:02,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=1277, Unknown=0, NotChecked=0, Total=1406 [2023-11-17 22:47:02,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:02,485 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:47:02,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 7.184210526315789) internal successors, (273), 38 states have internal predecessors, (273), 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) [2023-11-17 22:47:02,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:02,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:47:02,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:47:02,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-11-17 22:47:02,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2023-11-17 22:47:02,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-11-17 22:47:02,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-11-17 22:47:02,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:05,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:05,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:47:05,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:47:05,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-17 22:47:05,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-11-17 22:47:05,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-17 22:47:05,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-17 22:47:05,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2023-11-17 22:47:05,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-17 22:47:05,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-17 22:47:05,400 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-17 22:47:05,400 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:47:05,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1604801496, now seen corresponding path program 6 times [2023-11-17 22:47:05,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:47:05,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568539654] [2023-11-17 22:47:05,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:47:05,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:47:05,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:47:06,346 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 211 proven. 68 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-17 22:47:06,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:47:06,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568539654] [2023-11-17 22:47:06,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568539654] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 22:47:06,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [957782880] [2023-11-17 22:47:06,347 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-17 22:47:06,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:47:06,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:47:06,356 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 22:47:06,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-17 22:47:06,830 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2023-11-17 22:47:06,831 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 22:47:06,835 INFO L262 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-17 22:47:06,841 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:47:07,846 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 259 proven. 52 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-17 22:47:07,847 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 22:47:08,980 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 259 proven. 52 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-17 22:47:08,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [957782880] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 22:47:08,980 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 22:47:08,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 27, 27] total 70 [2023-11-17 22:47:08,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999946848] [2023-11-17 22:47:08,984 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 22:47:08,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2023-11-17 22:47:08,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:47:08,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2023-11-17 22:47:08,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=683, Invalid=4147, Unknown=0, NotChecked=0, Total=4830 [2023-11-17 22:47:08,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:08,992 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:47:08,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 70 states have (on average 6.171428571428572) internal successors, (432), 70 states have internal predecessors, (432), 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) [2023-11-17 22:47:08,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:08,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:47:08,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:47:08,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-11-17 22:47:08,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2023-11-17 22:47:08,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-11-17 22:47:08,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-11-17 22:47:08,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2023-11-17 22:47:08,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:10,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:47:10,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:47:10,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:47:10,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-17 22:47:10,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-11-17 22:47:10,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-17 22:47:10,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-17 22:47:10,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2023-11-17 22:47:10,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-11-17 22:47:10,469 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-17 22:47:10,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-17 22:47:10,644 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-17 22:47:10,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:47:10,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1314262793, now seen corresponding path program 7 times [2023-11-17 22:47:10,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:47:10,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339271925] [2023-11-17 22:47:10,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:47:10,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:47:11,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-17 22:47:11,053 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-17 22:47:11,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-17 22:47:11,356 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-17 22:47:11,357 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-17 22:47:11,358 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-11-17 22:47:11,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-11-17 22:47:11,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-11-17 22:47:11,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-17 22:47:11,370 INFO L445 BasicCegarLoop]: Path program histogram: [7, 1, 1, 1] [2023-11-17 22:47:11,376 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-17 22:47:11,376 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-17 22:47:11,591 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet7 could not be translated [2023-11-17 22:47:11,594 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc15 [2023-11-17 22:47:11,595 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet17 could not be translated [2023-11-17 22:47:11,597 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet17 could not be translated [2023-11-17 22:47:11,603 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet17 could not be translated [2023-11-17 22:47:11,606 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet17 could not be translated [2023-11-17 22:47:11,607 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet17 could not be translated [2023-11-17 22:47:11,611 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet17 could not be translated [2023-11-17 22:47:11,613 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet17 could not be translated [2023-11-17 22:47:11,616 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-17 22:47:11,616 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ret8 [2023-11-17 22:47:11,618 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre9 could not be translated [2023-11-17 22:47:11,620 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre11 could not be translated [2023-11-17 22:47:11,622 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem13 could not be translated [2023-11-17 22:47:11,630 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-17 22:47:11,634 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-17 22:47:11,636 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem13 could not be translated [2023-11-17 22:47:11,637 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem14 could not be translated [2023-11-17 22:47:11,637 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem14 could not be translated [2023-11-17 22:47:11,682 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 10:47:11 BasicIcfg [2023-11-17 22:47:11,683 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-17 22:47:11,683 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-17 22:47:11,684 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-17 22:47:11,684 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-17 22:47:11,685 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 10:46:48" (3/4) ... [2023-11-17 22:47:11,686 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-17 22:47:11,799 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet7 could not be translated [2023-11-17 22:47:11,799 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc15 [2023-11-17 22:47:11,800 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet17 could not be translated [2023-11-17 22:47:11,800 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet17 could not be translated [2023-11-17 22:47:11,801 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet17 could not be translated [2023-11-17 22:47:11,802 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet17 could not be translated [2023-11-17 22:47:11,802 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet17 could not be translated [2023-11-17 22:47:11,803 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet17 could not be translated [2023-11-17 22:47:11,803 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet17 could not be translated [2023-11-17 22:47:11,804 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-17 22:47:11,804 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ret8 [2023-11-17 22:47:11,804 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre9 could not be translated [2023-11-17 22:47:11,805 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre11 could not be translated [2023-11-17 22:47:11,805 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem13 could not be translated [2023-11-17 22:47:11,811 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-17 22:47:11,811 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-17 22:47:11,811 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem13 could not be translated [2023-11-17 22:47:11,812 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem14 could not be translated [2023-11-17 22:47:11,812 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem14 could not be translated [2023-11-17 22:47:11,914 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fdca4d-7d68-4b5d-a665-cc1ae7c2cb71/bin/ugemcutter-verify-ztSkJzofpW/witness.graphml [2023-11-17 22:47:11,914 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-17 22:47:11,915 INFO L158 Benchmark]: Toolchain (without parser) took 24399.72ms. Allocated memory was 161.5MB in the beginning and 339.7MB in the end (delta: 178.3MB). Free memory was 127.8MB in the beginning and 229.3MB in the end (delta: -101.5MB). Peak memory consumption was 78.7MB. Max. memory is 16.1GB. [2023-11-17 22:47:11,916 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 117.4MB. Free memory is still 91.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-17 22:47:11,916 INFO L158 Benchmark]: CACSL2BoogieTranslator took 320.08ms. Allocated memory is still 161.5MB. Free memory was 127.3MB in the beginning and 115.3MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-17 22:47:11,917 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.45ms. Allocated memory is still 161.5MB. Free memory was 115.3MB in the beginning and 113.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-17 22:47:11,917 INFO L158 Benchmark]: Boogie Preprocessor took 69.02ms. Allocated memory is still 161.5MB. Free memory was 113.2MB in the beginning and 111.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-17 22:47:11,918 INFO L158 Benchmark]: RCFGBuilder took 706.63ms. Allocated memory is still 161.5MB. Free memory was 111.6MB in the beginning and 81.7MB in the end (delta: 29.8MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-17 22:47:11,919 INFO L158 Benchmark]: TraceAbstraction took 22986.06ms. Allocated memory was 161.5MB in the beginning and 339.7MB in the end (delta: 178.3MB). Free memory was 81.2MB in the beginning and 268.2MB in the end (delta: -187.0MB). Peak memory consumption was 127.0MB. Max. memory is 16.1GB. [2023-11-17 22:47:11,920 INFO L158 Benchmark]: Witness Printer took 231.14ms. Allocated memory is still 339.7MB. Free memory was 268.2MB in the beginning and 229.3MB in the end (delta: 38.9MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2023-11-17 22:47:11,922 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 117.4MB. Free memory is still 91.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 320.08ms. Allocated memory is still 161.5MB. Free memory was 127.3MB in the beginning and 115.3MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.45ms. Allocated memory is still 161.5MB. Free memory was 115.3MB in the beginning and 113.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.02ms. Allocated memory is still 161.5MB. Free memory was 113.2MB in the beginning and 111.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 706.63ms. Allocated memory is still 161.5MB. Free memory was 111.6MB in the beginning and 81.7MB in the end (delta: 29.8MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 22986.06ms. Allocated memory was 161.5MB in the beginning and 339.7MB in the end (delta: 178.3MB). Free memory was 81.2MB in the beginning and 268.2MB in the end (delta: -187.0MB). Peak memory consumption was 127.0MB. Max. memory is 16.1GB. * Witness Printer took 231.14ms. Allocated memory is still 339.7MB. Free memory was 268.2MB in the beginning and 229.3MB in the end (delta: 38.9MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc15 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~ret8 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre11 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem13 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem13 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem14 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem14 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc15 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~ret8 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre11 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem13 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem13 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem14 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem14 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 5167, independent: 3186, independent conditional: 2434, independent unconditional: 752, dependent: 1981, dependent conditional: 1971, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3229, independent: 3186, independent conditional: 2434, independent unconditional: 752, dependent: 43, dependent conditional: 33, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 3229, independent: 3186, independent conditional: 2434, independent unconditional: 752, dependent: 43, dependent conditional: 33, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3301, independent: 3186, independent conditional: 0, independent unconditional: 3186, dependent: 115, dependent conditional: 72, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 3301, independent: 3186, independent conditional: 0, independent unconditional: 3186, dependent: 115, dependent conditional: 25, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3301, independent: 3186, independent conditional: 0, independent unconditional: 3186, dependent: 115, dependent conditional: 25, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 704, independent: 684, independent conditional: 0, independent unconditional: 684, dependent: 20, dependent conditional: 10, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 704, independent: 683, independent conditional: 0, independent unconditional: 683, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 21, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 20, dependent conditional: 10, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 21, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 20, dependent conditional: 10, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 188, independent: 41, independent conditional: 0, independent unconditional: 41, dependent: 147, dependent conditional: 48, dependent unconditional: 99, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 3301, independent: 2502, independent conditional: 0, independent unconditional: 2502, dependent: 95, dependent conditional: 15, dependent unconditional: 80, unknown: 704, unknown conditional: 10, unknown unconditional: 694] , Statistics on independence cache: Total cache size (in pairs): 704, Positive cache size: 684, Positive conditional cache size: 0, Positive unconditional cache size: 684, Negative cache size: 20, Negative conditional cache size: 10, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 47, Maximal queried relation: 3, Independence queries for same thread: 1938 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.2s, Number of persistent set computation: 137, Number of trivial persistent sets: 110, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 762, independent: 752, independent conditional: 0, independent unconditional: 752, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 5167, independent: 3186, independent conditional: 2434, independent unconditional: 752, dependent: 1981, dependent conditional: 1971, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3229, independent: 3186, independent conditional: 2434, independent unconditional: 752, dependent: 43, dependent conditional: 33, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 3229, independent: 3186, independent conditional: 2434, independent unconditional: 752, dependent: 43, dependent conditional: 33, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3301, independent: 3186, independent conditional: 0, independent unconditional: 3186, dependent: 115, dependent conditional: 72, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 3301, independent: 3186, independent conditional: 0, independent unconditional: 3186, dependent: 115, dependent conditional: 25, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3301, independent: 3186, independent conditional: 0, independent unconditional: 3186, dependent: 115, dependent conditional: 25, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 704, independent: 684, independent conditional: 0, independent unconditional: 684, dependent: 20, dependent conditional: 10, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 704, independent: 683, independent conditional: 0, independent unconditional: 683, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 21, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 20, dependent conditional: 10, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 21, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 20, dependent conditional: 10, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 188, independent: 41, independent conditional: 0, independent unconditional: 41, dependent: 147, dependent conditional: 48, dependent unconditional: 99, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 3301, independent: 2502, independent conditional: 0, independent unconditional: 2502, dependent: 95, dependent conditional: 15, dependent unconditional: 80, unknown: 704, unknown conditional: 10, unknown unconditional: 694] , Statistics on independence cache: Total cache size (in pairs): 704, Positive cache size: 684, Positive conditional cache size: 0, Positive unconditional cache size: 684, Negative cache size: 20, Negative conditional cache size: 10, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 47, Maximal queried relation: 3, Independence queries for same thread: 1938 - CounterExampleResult [Line: 87]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L41] 0 int* A; VAL [A={0:0}] [L42] 0 int counter, N; VAL [A={0:0}, N=0, counter=0] [L75] 0 pthread_t t1, t2; VAL [A={0:0}, N=0, counter=0, t1={6:0}, t2={5:0}] [L77] 0 N = __VERIFIER_nondet_int() VAL [A={0:0}, N=7, counter=0, t1={6:0}, t2={5:0}] [L78] CALL, EXPR 0 create_fresh_int_array(N) [L93] CALL 0 assume_abort_if_not(size >= 0) [L38] COND FALSE 0 !(!cond) VAL [A={0:0}, N=7, \old(cond)=1, cond=1, counter=0] [L93] RET 0 assume_abort_if_not(size >= 0) [L94] CALL 0 assume_abort_if_not(size <= (((size_t) 4294967295) / sizeof(int))) [L38] COND FALSE 0 !(!cond) VAL [A={0:0}, N=7, \old(cond)=1, cond=1, counter=0] [L94] RET 0 assume_abort_if_not(size <= (((size_t) 4294967295) / sizeof(int))) [L96] 0 int* arr = (int*)malloc(sizeof(int) * (size_t)size); VAL [A={0:0}, N=7, \old(size)=7, arr={3:0}, counter=0, size=7] [L97] 0 int i = 0; VAL [A={0:0}, N=7, \old(size)=7, arr={3:0}, counter=0, i=0, size=7] [L97] COND TRUE 0 i < size VAL [A={0:0}, N=7, \old(size)=7, arr={3:0}, counter=0, i=0, size=7] [L98] 0 arr[i] = __VERIFIER_nondet_int() VAL [A={0:0}, N=7, \old(size)=7, arr={3:0}, counter=0, i=0, size=7] [L97] 0 i++ VAL [A={0:0}, N=7, \old(size)=7, arr={3:0}, counter=0, i=1, size=7] [L97] COND TRUE 0 i < size VAL [A={0:0}, N=7, \old(size)=7, arr={3:0}, counter=0, i=1, size=7] [L98] 0 arr[i] = __VERIFIER_nondet_int() VAL [A={0:0}, N=7, \old(size)=7, arr={3:0}, counter=0, i=1, size=7] [L97] 0 i++ VAL [A={0:0}, N=7, \old(size)=7, arr={3:0}, counter=0, i=2, size=7] [L97] COND TRUE 0 i < size VAL [A={0:0}, N=7, \old(size)=7, arr={3:0}, counter=0, i=2, size=7] [L98] 0 arr[i] = __VERIFIER_nondet_int() VAL [A={0:0}, N=7, \old(size)=7, arr={3:0}, counter=0, i=2, size=7] [L97] 0 i++ VAL [A={0:0}, N=7, \old(size)=7, arr={3:0}, counter=0, i=3, size=7] [L97] COND TRUE 0 i < size VAL [A={0:0}, N=7, \old(size)=7, arr={3:0}, counter=0, i=3, size=7] [L98] 0 arr[i] = __VERIFIER_nondet_int() VAL [A={0:0}, N=7, \old(size)=7, arr={3:0}, counter=0, i=3, size=7] [L97] 0 i++ VAL [A={0:0}, N=7, \old(size)=7, arr={3:0}, counter=0, i=4, size=7] [L97] COND TRUE 0 i < size VAL [A={0:0}, N=7, \old(size)=7, arr={3:0}, counter=0, i=4, size=7] [L98] 0 arr[i] = __VERIFIER_nondet_int() VAL [A={0:0}, N=7, \old(size)=7, arr={3:0}, counter=0, i=4, size=7] [L97] 0 i++ VAL [A={0:0}, N=7, \old(size)=7, arr={3:0}, counter=0, i=5, size=7] [L97] COND TRUE 0 i < size VAL [A={0:0}, N=7, \old(size)=7, arr={3:0}, counter=0, i=5, size=7] [L98] 0 arr[i] = __VERIFIER_nondet_int() VAL [A={0:0}, N=7, \old(size)=7, arr={3:0}, counter=0, i=5, size=7] [L97] 0 i++ VAL [A={0:0}, N=7, \old(size)=7, arr={3:0}, counter=0, i=6, size=7] [L97] COND TRUE 0 i < size VAL [A={0:0}, N=7, \old(size)=7, arr={3:0}, counter=0, i=6, size=7] [L98] 0 arr[i] = __VERIFIER_nondet_int() VAL [A={0:0}, N=7, \old(size)=7, arr={3:0}, counter=0, i=6, size=7] [L97] 0 i++ VAL [A={0:0}, N=7, \old(size)=7, arr={3:0}, counter=0, i=7, size=7] [L97] COND FALSE 0 !(i < size) VAL [A={0:0}, N=7, \old(size)=7, arr={3:0}, counter=0, i=7, size=7] [L100] 0 return arr; VAL [A={0:0}, N=7, \old(size)=7, \result={3:0}, arr={3:0}, counter=0, size=7] [L78] RET, EXPR 0 create_fresh_int_array(N) [L78] 0 A = create_fresh_int_array(N) VAL [A={3:0}, N=7, counter=0, t1={6:0}, t2={5:0}] [L81] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [A={3:0}, N=7, counter=0, t1={6:0}, t2={5:0}] [L49] 1 int i=0; VAL [A={3:0}, N=7, _argptr={0:0}, _argptr={0:0}, counter=0, i=0] [L82] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [A={3:0}, N=7, counter=0, t1={6:0}, t2={5:0}] [L62] 2 int i=0; VAL [A={3:0}, N=7, _argptr={0:0}, _argptr={0:0}, counter=0, i=0] [L83] 0 \read(t1) VAL [A={3:0}, N=7, counter=0, t1={6:0}, t2={5:0}] [L49] COND TRUE 1 i= 0 || a >= -2147483648 - b) [L38] COND FALSE 1 !(!cond) [L110] RET 1 assume_abort_if_not(b >= 0 || a >= -2147483648 - b) [L111] CALL 1 assume_abort_if_not(b <= 0 || a <= 2147483647 - b) [L38] COND FALSE 1 !(!cond) [L111] RET 1 assume_abort_if_not(b <= 0 || a <= 2147483647 - b) [L112] 1 return a + b; [L51] RET, EXPR 1 plus(counter, A[i]) [L51] 1 int tmp = plus(counter, A[i]); [L54] 1 counter = tmp VAL [A={3:0}, N=7, _argptr={0:0}, _argptr={0:0}, counter=-9, i=0, tmp=-9] [L49] 1 i++ VAL [A={3:0}, N=7, _argptr={0:0}, _argptr={0:0}, counter=-9, i=1, tmp=-9] [L62] COND TRUE 2 i= b - 2147483648) [L38] COND FALSE 2 !(!cond) [L104] RET 2 assume_abort_if_not(b <= 0 || a >= b - 2147483648) [L105] CALL 2 assume_abort_if_not(b >= 0 || a <= b + 2147483647) [L38] COND FALSE 2 !(!cond) [L105] RET 2 assume_abort_if_not(b >= 0 || a <= b + 2147483647) [L106] 2 return a - b; [L64] RET, EXPR 2 minus(counter, A[i]) [L64] 2 int tmp = minus(counter, A[i]); [L67] 2 counter = tmp VAL [A={3:0}, N=7, _argptr={0:0}, _argptr={0:0}, counter=0, i=0, tmp=0] [L62] 2 i++ VAL [A={3:0}, N=7, _argptr={0:0}, _argptr={0:0}, counter=0, i=1, tmp=0] [L49] COND TRUE 1 i= 0 || a >= -2147483648 - b) [L38] COND FALSE 1 !(!cond) [L110] RET 1 assume_abort_if_not(b >= 0 || a >= -2147483648 - b) [L111] CALL 1 assume_abort_if_not(b <= 0 || a <= 2147483647 - b) [L38] COND FALSE 1 !(!cond) [L111] RET 1 assume_abort_if_not(b <= 0 || a <= 2147483647 - b) [L112] 1 return a + b; [L51] RET, EXPR 1 plus(counter, A[i]) [L51] 1 int tmp = plus(counter, A[i]); [L54] 1 counter = tmp VAL [A={3:0}, N=7, _argptr={0:0}, _argptr={0:0}, counter=-10, i=1, tmp=-10] [L49] 1 i++ VAL [A={3:0}, N=7, _argptr={0:0}, _argptr={0:0}, counter=-10, i=2, tmp=-10] [L62] COND TRUE 2 i= b - 2147483648) [L38] COND FALSE 2 !(!cond) [L104] RET 2 assume_abort_if_not(b <= 0 || a >= b - 2147483648) [L105] CALL 2 assume_abort_if_not(b >= 0 || a <= b + 2147483647) [L38] COND FALSE 2 !(!cond) [L105] RET 2 assume_abort_if_not(b >= 0 || a <= b + 2147483647) [L106] 2 return a - b; [L64] RET, EXPR 2 minus(counter, A[i]) [L64] 2 int tmp = minus(counter, A[i]); [L67] 2 counter = tmp VAL [A={3:0}, N=7, _argptr={0:0}, _argptr={0:0}, counter=0, i=1, tmp=0] [L62] 2 i++ VAL [A={3:0}, N=7, _argptr={0:0}, _argptr={0:0}, counter=0, i=2, tmp=0] [L49] COND TRUE 1 i= 0 || a >= -2147483648 - b) [L38] COND FALSE 1 !(!cond) [L110] RET 1 assume_abort_if_not(b >= 0 || a >= -2147483648 - b) [L111] CALL 1 assume_abort_if_not(b <= 0 || a <= 2147483647 - b) [L38] COND FALSE 1 !(!cond) [L111] RET 1 assume_abort_if_not(b <= 0 || a <= 2147483647 - b) [L112] 1 return a + b; [L51] RET, EXPR 1 plus(counter, A[i]) [L51] 1 int tmp = plus(counter, A[i]); [L54] 1 counter = tmp VAL [A={3:0}, N=7, _argptr={0:0}, _argptr={0:0}, counter=-12, i=2, tmp=-12] [L49] 1 i++ VAL [A={3:0}, N=7, _argptr={0:0}, _argptr={0:0}, counter=-12, i=3, tmp=-12] [L62] COND TRUE 2 i= b - 2147483648) [L38] COND FALSE 2 !(!cond) [L104] RET 2 assume_abort_if_not(b <= 0 || a >= b - 2147483648) [L105] CALL 2 assume_abort_if_not(b >= 0 || a <= b + 2147483647) [L38] COND FALSE 2 !(!cond) [L105] RET 2 assume_abort_if_not(b >= 0 || a <= b + 2147483647) [L106] 2 return a - b; [L64] RET, EXPR 2 minus(counter, A[i]) [L64] 2 int tmp = minus(counter, A[i]); [L67] 2 counter = tmp VAL [A={3:0}, N=7, _argptr={0:0}, _argptr={0:0}, counter=0, i=2, tmp=0] [L62] 2 i++ VAL [A={3:0}, N=7, _argptr={0:0}, _argptr={0:0}, counter=0, i=3, tmp=0] [L49] COND TRUE 1 i= 0 || a >= -2147483648 - b) [L38] COND FALSE 1 !(!cond) [L110] RET 1 assume_abort_if_not(b >= 0 || a >= -2147483648 - b) [L111] CALL 1 assume_abort_if_not(b <= 0 || a <= 2147483647 - b) [L38] COND FALSE 1 !(!cond) [L111] RET 1 assume_abort_if_not(b <= 0 || a <= 2147483647 - b) [L112] 1 return a + b; [L51] RET, EXPR 1 plus(counter, A[i]) [L51] 1 int tmp = plus(counter, A[i]); [L54] 1 counter = tmp VAL [A={3:0}, N=7, _argptr={0:0}, _argptr={0:0}, counter=0, i=3, tmp=0] [L49] 1 i++ VAL [A={3:0}, N=7, _argptr={0:0}, _argptr={0:0}, counter=0, i=4, tmp=0] [L62] COND TRUE 2 i= b - 2147483648) [L38] COND FALSE 2 !(!cond) [L104] RET 2 assume_abort_if_not(b <= 0 || a >= b - 2147483648) [L105] CALL 2 assume_abort_if_not(b >= 0 || a <= b + 2147483647) [L38] COND FALSE 2 !(!cond) [L105] RET 2 assume_abort_if_not(b >= 0 || a <= b + 2147483647) [L106] 2 return a - b; [L64] RET, EXPR 2 minus(counter, A[i]) [L64] 2 int tmp = minus(counter, A[i]); [L67] 2 counter = tmp VAL [A={3:0}, N=7, _argptr={0:0}, _argptr={0:0}, counter=0, i=3, tmp=0] [L62] 2 i++ VAL [A={3:0}, N=7, _argptr={0:0}, _argptr={0:0}, counter=0, i=4, tmp=0] [L49] COND TRUE 1 i= 0 || a >= -2147483648 - b) [L38] COND FALSE 1 !(!cond) [L110] RET 1 assume_abort_if_not(b >= 0 || a >= -2147483648 - b) [L111] CALL 1 assume_abort_if_not(b <= 0 || a <= 2147483647 - b) [L38] COND FALSE 1 !(!cond) [L111] RET 1 assume_abort_if_not(b <= 0 || a <= 2147483647 - b) [L112] 1 return a + b; [L51] RET, EXPR 1 plus(counter, A[i]) [L51] 1 int tmp = plus(counter, A[i]); [L54] 1 counter = tmp VAL [A={3:0}, N=7, _argptr={0:0}, _argptr={0:0}, counter=17, i=4, tmp=17] [L49] 1 i++ VAL [A={3:0}, N=7, _argptr={0:0}, _argptr={0:0}, counter=17, i=5, tmp=17] [L62] COND TRUE 2 i= b - 2147483648) [L38] COND FALSE 2 !(!cond) [L104] RET 2 assume_abort_if_not(b <= 0 || a >= b - 2147483648) [L105] CALL 2 assume_abort_if_not(b >= 0 || a <= b + 2147483647) [L38] COND FALSE 2 !(!cond) [L105] RET 2 assume_abort_if_not(b >= 0 || a <= b + 2147483647) [L106] 2 return a - b; [L64] RET, EXPR 2 minus(counter, A[i]) [L64] 2 int tmp = minus(counter, A[i]); [L49] COND TRUE 1 i= 0 || a >= -2147483648 - b) [L38] COND FALSE 1 !(!cond) [L110] RET 1 assume_abort_if_not(b >= 0 || a >= -2147483648 - b) [L111] CALL 1 assume_abort_if_not(b <= 0 || a <= 2147483647 - b) [L38] COND FALSE 1 !(!cond) [L111] RET 1 assume_abort_if_not(b <= 0 || a <= 2147483647 - b) [L112] 1 return a + b; [L51] RET, EXPR 1 plus(counter, A[i]) [L51] 1 int tmp = plus(counter, A[i]); [L67] 2 counter = tmp VAL [A={3:0}, N=7, _argptr={0:0}, _argptr={0:0}, counter=0, i=4, tmp=0] [L62] 2 i++ VAL [A={3:0}, N=7, _argptr={0:0}, _argptr={0:0}, counter=0, i=5, tmp=0] [L62] COND TRUE 2 i= b - 2147483648) [L38] COND FALSE 2 !(!cond) [L104] RET 2 assume_abort_if_not(b <= 0 || a >= b - 2147483648) [L105] CALL 2 assume_abort_if_not(b >= 0 || a <= b + 2147483647) [L38] COND FALSE 2 !(!cond) [L105] RET 2 assume_abort_if_not(b >= 0 || a <= b + 2147483647) [L106] 2 return a - b; [L64] RET, EXPR 2 minus(counter, A[i]) [L64] 2 int tmp = minus(counter, A[i]); [L67] 2 counter = tmp VAL [A={3:0}, N=7, _argptr={0:0}, _argptr={0:0}, counter=17, i=5, tmp=17] [L62] 2 i++ VAL [A={3:0}, N=7, _argptr={0:0}, _argptr={0:0}, counter=17, i=6, tmp=17] [L62] COND TRUE 2 i= b - 2147483648) [L38] COND FALSE 2 !(!cond) [L104] RET 2 assume_abort_if_not(b <= 0 || a >= b - 2147483648) [L105] CALL 2 assume_abort_if_not(b >= 0 || a <= b + 2147483647) [L38] COND FALSE 2 !(!cond) [L105] RET 2 assume_abort_if_not(b >= 0 || a <= b + 2147483647) [L106] 2 return a - b; [L64] RET, EXPR 2 minus(counter, A[i]) [L64] 2 int tmp = minus(counter, A[i]); [L54] 1 counter = tmp VAL [A={3:0}, N=7, _argptr={0:0}, _argptr={0:0}, counter=0, i=5, tmp=0] [L49] 1 i++ VAL [A={3:0}, N=7, _argptr={0:0}, _argptr={0:0}, counter=0, i=6, tmp=0] [L67] 2 counter = tmp VAL [A={3:0}, N=7, _argptr={0:0}, _argptr={0:0}, counter=17, i=6, tmp=17] [L62] 2 i++ VAL [A={3:0}, N=7, _argptr={0:0}, _argptr={0:0}, counter=17, i=7, tmp=17] [L49] COND TRUE 1 i= 0 || a >= -2147483648 - b) [L38] COND FALSE 1 !(!cond) [L110] RET 1 assume_abort_if_not(b >= 0 || a >= -2147483648 - b) [L111] CALL 1 assume_abort_if_not(b <= 0 || a <= 2147483647 - b) [L38] COND FALSE 1 !(!cond) [L111] RET 1 assume_abort_if_not(b <= 0 || a <= 2147483647 - b) [L112] 1 return a + b; [L51] RET, EXPR 1 plus(counter, A[i]) [L51] 1 int tmp = plus(counter, A[i]); [L54] 1 counter = tmp VAL [A={3:0}, N=7, _argptr={0:0}, _argptr={0:0}, counter=17, i=6, tmp=17] [L49] 1 i++ VAL [A={3:0}, N=7, _argptr={0:0}, _argptr={0:0}, counter=17, i=7, tmp=17] [L62] COND FALSE 2 !(i