./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-mult-4.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d5e3ad-21f3-4d2c-bf28-94f62a80402e/bin/ugemcutter-rbreBovr8w/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d5e3ad-21f3-4d2c-bf28-94f62a80402e/bin/ugemcutter-rbreBovr8w/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d5e3ad-21f3-4d2c-bf28-94f62a80402e/bin/ugemcutter-rbreBovr8w/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d5e3ad-21f3-4d2c-bf28-94f62a80402e/bin/ugemcutter-rbreBovr8w/config/GemCutterReach.xml -i ../../sv-benchmarks/c/weaver/popl20-mult-4.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d5e3ad-21f3-4d2c-bf28-94f62a80402e/bin/ugemcutter-rbreBovr8w/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d5e3ad-21f3-4d2c-bf28-94f62a80402e/bin/ugemcutter-rbreBovr8w --witnessprinter.witness.filename witness.graphml --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 2e6a14a531a7a58347cefef713565bcea13a3839848e23eb785379c30b602107 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 09:40:08,385 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 09:40:08,387 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 09:40:08,403 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 09:40:08,404 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 09:40:08,405 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 09:40:08,406 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 09:40:08,408 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 09:40:08,409 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 09:40:08,410 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 09:40:08,411 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 09:40:08,412 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 09:40:08,412 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 09:40:08,413 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 09:40:08,414 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 09:40:08,415 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 09:40:08,416 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 09:40:08,417 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 09:40:08,419 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 09:40:08,420 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 09:40:08,422 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 09:40:08,423 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 09:40:08,424 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 09:40:08,425 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 09:40:08,428 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 09:40:08,428 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 09:40:08,429 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 09:40:08,430 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 09:40:08,430 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 09:40:08,431 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 09:40:08,431 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 09:40:08,432 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 09:40:08,433 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 09:40:08,433 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 09:40:08,434 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 09:40:08,434 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 09:40:08,435 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 09:40:08,435 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 09:40:08,435 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 09:40:08,436 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 09:40:08,436 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 09:40:08,437 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d5e3ad-21f3-4d2c-bf28-94f62a80402e/bin/ugemcutter-rbreBovr8w/config/svcomp-Reach-32bit-GemCutter_Default.epf [2022-12-13 09:40:08,456 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 09:40:08,456 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 09:40:08,456 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 09:40:08,456 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 09:40:08,457 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 09:40:08,457 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 09:40:08,458 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 09:40:08,458 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 09:40:08,458 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 09:40:08,458 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 09:40:08,458 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 09:40:08,459 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 09:40:08,459 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 09:40:08,459 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 09:40:08,459 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 09:40:08,459 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 09:40:08,459 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 09:40:08,459 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 09:40:08,460 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 09:40:08,460 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 09:40:08,460 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 09:40:08,460 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 09:40:08,460 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 09:40:08,460 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 09:40:08,460 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 09:40:08,460 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 09:40:08,461 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 09:40:08,461 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 09:40:08,461 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 09:40:08,461 INFO L138 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2022-12-13 09:40:08,461 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 09:40:08,461 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-13 09:40:08,461 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-12-13 09:40:08,462 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 09:40:08,462 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-12-13 09:40:08,462 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-12-13 09:40:08,462 INFO L138 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_f2d5e3ad-21f3-4d2c-bf28-94f62a80402e/bin/ugemcutter-rbreBovr8w/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d5e3ad-21f3-4d2c-bf28-94f62a80402e/bin/ugemcutter-rbreBovr8w Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e6a14a531a7a58347cefef713565bcea13a3839848e23eb785379c30b602107 [2022-12-13 09:40:08,641 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 09:40:08,659 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 09:40:08,662 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 09:40:08,663 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 09:40:08,663 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 09:40:08,664 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d5e3ad-21f3-4d2c-bf28-94f62a80402e/bin/ugemcutter-rbreBovr8w/../../sv-benchmarks/c/weaver/popl20-mult-4.wvr.c [2022-12-13 09:40:11,179 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 09:40:11,372 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 09:40:11,372 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d5e3ad-21f3-4d2c-bf28-94f62a80402e/sv-benchmarks/c/weaver/popl20-mult-4.wvr.c [2022-12-13 09:40:11,379 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d5e3ad-21f3-4d2c-bf28-94f62a80402e/bin/ugemcutter-rbreBovr8w/data/8bd83a694/c71b213f7ad34aa2b8de569f198c5be9/FLAG5e5d87f13 [2022-12-13 09:40:11,744 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d5e3ad-21f3-4d2c-bf28-94f62a80402e/bin/ugemcutter-rbreBovr8w/data/8bd83a694/c71b213f7ad34aa2b8de569f198c5be9 [2022-12-13 09:40:11,748 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 09:40:11,750 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 09:40:11,752 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 09:40:11,753 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 09:40:11,758 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 09:40:11,759 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:40:11" (1/1) ... [2022-12-13 09:40:11,760 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ab82c7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:40:11, skipping insertion in model container [2022-12-13 09:40:11,761 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:40:11" (1/1) ... [2022-12-13 09:40:11,768 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 09:40:11,787 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 09:40:11,920 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:40:11,921 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:40:11,924 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:40:11,926 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:40:11,928 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:40:11,928 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:40:11,929 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:40:11,930 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:40:11,935 WARN L237 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_f2d5e3ad-21f3-4d2c-bf28-94f62a80402e/sv-benchmarks/c/weaver/popl20-mult-4.wvr.c[2612,2625] [2022-12-13 09:40:11,938 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 09:40:11,945 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 09:40:11,954 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:40:11,954 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:40:11,955 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:40:11,956 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:40:11,956 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:40:11,957 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:40:11,957 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:40:11,958 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:40:11,961 WARN L237 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_f2d5e3ad-21f3-4d2c-bf28-94f62a80402e/sv-benchmarks/c/weaver/popl20-mult-4.wvr.c[2612,2625] [2022-12-13 09:40:11,962 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 09:40:11,972 INFO L208 MainTranslator]: Completed translation [2022-12-13 09:40:11,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:40:11 WrapperNode [2022-12-13 09:40:11,973 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 09:40:11,973 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 09:40:11,973 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 09:40:11,974 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 09:40:11,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:40:11" (1/1) ... [2022-12-13 09:40:11,984 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:40:11" (1/1) ... [2022-12-13 09:40:11,999 INFO L138 Inliner]: procedures = 23, calls = 42, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 117 [2022-12-13 09:40:11,999 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 09:40:12,000 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 09:40:12,000 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 09:40:12,000 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 09:40:12,007 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:40:11" (1/1) ... [2022-12-13 09:40:12,007 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:40:11" (1/1) ... [2022-12-13 09:40:12,009 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:40:11" (1/1) ... [2022-12-13 09:40:12,009 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:40:11" (1/1) ... [2022-12-13 09:40:12,012 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:40:11" (1/1) ... [2022-12-13 09:40:12,015 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:40:11" (1/1) ... [2022-12-13 09:40:12,016 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:40:11" (1/1) ... [2022-12-13 09:40:12,017 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:40:11" (1/1) ... [2022-12-13 09:40:12,018 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 09:40:12,019 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 09:40:12,019 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 09:40:12,019 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 09:40:12,020 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:40:11" (1/1) ... [2022-12-13 09:40:12,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 09:40:12,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d5e3ad-21f3-4d2c-bf28-94f62a80402e/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 09:40:12,046 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d5e3ad-21f3-4d2c-bf28-94f62a80402e/bin/ugemcutter-rbreBovr8w/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 09:40:12,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d5e3ad-21f3-4d2c-bf28-94f62a80402e/bin/ugemcutter-rbreBovr8w/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 09:40:12,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 09:40:12,089 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-13 09:40:12,089 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-13 09:40:12,089 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-13 09:40:12,089 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-13 09:40:12,089 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-13 09:40:12,089 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-13 09:40:12,089 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-12-13 09:40:12,089 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-12-13 09:40:12,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 09:40:12,090 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 09:40:12,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 09:40:12,090 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 09:40:12,090 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 09:40:12,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 09:40:12,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 09:40:12,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 09:40:12,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 09:40:12,092 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 09:40:12,180 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 09:40:12,182 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 09:40:12,397 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 09:40:12,425 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 09:40:12,425 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-13 09:40:12,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:40:12 BoogieIcfgContainer [2022-12-13 09:40:12,427 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 09:40:12,429 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 09:40:12,429 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 09:40:12,431 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 09:40:12,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 09:40:11" (1/3) ... [2022-12-13 09:40:12,432 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e54fff8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:40:12, skipping insertion in model container [2022-12-13 09:40:12,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:40:11" (2/3) ... [2022-12-13 09:40:12,432 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e54fff8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:40:12, skipping insertion in model container [2022-12-13 09:40:12,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:40:12" (3/3) ... [2022-12-13 09:40:12,433 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-mult-4.wvr.c [2022-12-13 09:40:12,439 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 09:40:12,446 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 09:40:12,447 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 09:40:12,447 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 09:40:12,519 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-12-13 09:40:12,562 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 09:40:12,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-12-13 09:40:12,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d5e3ad-21f3-4d2c-bf28-94f62a80402e/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 09:40:12,564 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d5e3ad-21f3-4d2c-bf28-94f62a80402e/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-12-13 09:40:12,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d5e3ad-21f3-4d2c-bf28-94f62a80402e/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-12-13 09:40:12,597 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-12-13 09:40:12,608 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-12-13 09:40:12,615 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=LoopsAndPotentialCycles, 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;@6471141c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 09:40:12,615 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-13 09:40:13,233 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 09:40:13,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:40:13,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1884474961, now seen corresponding path program 1 times [2022-12-13 09:40:13,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:40:13,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632282782] [2022-12-13 09:40:13,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:40:13,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:40:13,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:40:13,533 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2022-12-13 09:40:13,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:40:13,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632282782] [2022-12-13 09:40:13,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632282782] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:40:13,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 09:40:13,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 09:40:13,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582200705] [2022-12-13 09:40:13,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:40:13,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 09:40:13,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:40:13,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 09:40:13,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 09:40:13,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:40:13,570 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:40:13,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 55.0) internal successors, (110), 2 states have internal predecessors, (110), 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) [2022-12-13 09:40:13,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:40:13,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:40:13,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 09:40:13,694 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 09:40:13,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:40:13,694 INFO L85 PathProgramCache]: Analyzing trace with hash 309836121, now seen corresponding path program 1 times [2022-12-13 09:40:13,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:40:13,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171791939] [2022-12-13 09:40:13,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:40:13,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:40:13,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:40:15,031 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 142 proven. 173 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-12-13 09:40:15,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:40:15,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171791939] [2022-12-13 09:40:15,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171791939] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 09:40:15,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1115516454] [2022-12-13 09:40:15,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:40:15,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:40:15,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d5e3ad-21f3-4d2c-bf28-94f62a80402e/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 09:40:15,068 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d5e3ad-21f3-4d2c-bf28-94f62a80402e/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 09:40:15,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d5e3ad-21f3-4d2c-bf28-94f62a80402e/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 09:40:15,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:40:15,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 510 conjuncts, 38 conjunts are in the unsatisfiable core [2022-12-13 09:40:15,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 09:40:16,117 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 142 proven. 185 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-13 09:40:16,117 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 09:40:17,113 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 142 proven. 185 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-13 09:40:17,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1115516454] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 09:40:17,114 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 09:40:17,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 21, 21] total 47 [2022-12-13 09:40:17,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572311961] [2022-12-13 09:40:17,115 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 09:40:17,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-12-13 09:40:17,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:40:17,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-12-13 09:40:17,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=196, Invalid=1966, Unknown=0, NotChecked=0, Total=2162 [2022-12-13 09:40:17,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:40:17,120 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:40:17,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 7.553191489361702) internal successors, (355), 47 states have internal predecessors, (355), 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) [2022-12-13 09:40:17,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:40:17,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:40:20,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:40:20,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-12-13 09:40:20,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d5e3ad-21f3-4d2c-bf28-94f62a80402e/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-13 09:40:20,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d5e3ad-21f3-4d2c-bf28-94f62a80402e/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:40:20,309 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 09:40:20,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:40:20,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1877923705, now seen corresponding path program 2 times [2022-12-13 09:40:20,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:40:20,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957083619] [2022-12-13 09:40:20,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:40:20,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:40:20,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:40:22,053 INFO L134 CoverageAnalysis]: Checked inductivity of 1169 backedges. 277 proven. 504 refuted. 0 times theorem prover too weak. 388 trivial. 0 not checked. [2022-12-13 09:40:22,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:40:22,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957083619] [2022-12-13 09:40:22,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957083619] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 09:40:22,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1572768707] [2022-12-13 09:40:22,054 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 09:40:22,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:40:22,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d5e3ad-21f3-4d2c-bf28-94f62a80402e/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 09:40:22,055 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d5e3ad-21f3-4d2c-bf28-94f62a80402e/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 09:40:22,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2d5e3ad-21f3-4d2c-bf28-94f62a80402e/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 09:40:22,210 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 09:40:22,211 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 09:40:22,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 690 conjuncts, 86 conjunts are in the unsatisfiable core [2022-12-13 09:40:22,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 09:40:23,826 INFO L134 CoverageAnalysis]: Checked inductivity of 1169 backedges. 79 proven. 1084 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-13 09:40:23,826 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 09:40:27,833 INFO L134 CoverageAnalysis]: Checked inductivity of 1169 backedges. 79 proven. 1084 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-13 09:40:27,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1572768707] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 09:40:27,833 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 09:40:27,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 45, 45] total 103 [2022-12-13 09:40:27,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233872155] [2022-12-13 09:40:27,834 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 09:40:27,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 103 states [2022-12-13 09:40:27,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:40:27,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2022-12-13 09:40:27,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=731, Invalid=9775, Unknown=0, NotChecked=0, Total=10506 [2022-12-13 09:40:27,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:40:27,839 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:40:27,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 103 states, 103 states have (on average 6.223300970873787) internal successors, (641), 103 states have internal predecessors, (641), 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) [2022-12-13 09:40:27,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:40:27,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-12-13 09:40:27,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:43:00,500 WARN L233 SmtUtils]: Spent 1.42m on a formula simplification. DAG size of input: 106 DAG size of output: 24 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 09:43:02,510 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 (+ (mod (+ 3 c_thread3Thread1of1ForFork1_~i~2) 4294967296) 1)) (.cse0 (+ (mod (+ c_thread3Thread1of1ForFork1_~i~2 1) 4294967296) 1)) (.cse2 (+ (mod (+ 2 c_thread3Thread1of1ForFork1_~i~2) 4294967296) 1)) (.cse5 (+ (mod (+ c_thread3Thread1of1ForFork1_~i~2 8) 4294967296) 1)) (.cse4 (+ (mod (+ 9 c_thread3Thread1of1ForFork1_~i~2) 4294967296) 1)) (.cse9 (+ (mod (+ c_thread3Thread1of1ForFork1_~i~2 4) 4294967296) 1)) (.cse8 (mod (+ c_thread3Thread1of1ForFork1_~i~2 10) 4294967296)) (.cse7 (+ (mod (+ 6 c_thread3Thread1of1ForFork1_~i~2) 4294967296) 1)) (.cse6 (+ (mod (+ 5 c_thread3Thread1of1ForFork1_~i~2) 4294967296) 1)) (.cse3 (+ (mod (+ 7 c_thread3Thread1of1ForFork1_~i~2) 4294967296) 1))) (and (< (mod (+ |c_thread4Thread1of1ForFork3_~i~3#1| 1) 4294967296) .cse0) (< (mod (+ |c_thread4Thread1of1ForFork3_~i~3#1| 3) 4294967296) .cse1) (< (mod (+ |c_thread4Thread1of1ForFork3_#t~post4#1| 4) 4294967296) .cse1) (< (mod (+ |c_thread4Thread1of1ForFork3_~i~3#1| 2) 4294967296) .cse2) (<= |c_thread2Thread1of1ForFork0_~i~1#1| c_thread3Thread1of1ForFork1_~i~2) (< (mod (+ |c_thread4Thread1of1ForFork3_#t~post4#1| 8) 4294967296) .cse3) (<= c_thread3Thread1of1ForFork1_~i~2 |c_thread2Thread1of1ForFork0_~i~1#1|) (< (mod (+ 2 |c_thread4Thread1of1ForFork3_#t~post4#1|) 4294967296) .cse0) (< (mod (+ |c_thread4Thread1of1ForFork3_~i~3#1| 9) 4294967296) .cse4) (< (mod (+ |c_thread4Thread1of1ForFork3_~i~3#1| 8) 4294967296) .cse5) (< (mod (+ 3 |c_thread4Thread1of1ForFork3_#t~post4#1|) 4294967296) .cse2) (< (mod (+ 5 |c_thread4Thread1of1ForFork3_~i~3#1|) 4294967296) .cse6) (< (mod (+ 9 |c_thread4Thread1of1ForFork3_#t~post4#1|) 4294967296) .cse5) (< (mod (+ |c_thread4Thread1of1ForFork3_~i~3#1| 6) 4294967296) .cse7) (< (mod (+ |c_thread4Thread1of1ForFork3_~i~3#1| 10) 4294967296) (+ .cse8 1)) (< (mod (+ |c_thread4Thread1of1ForFork3_#t~post4#1| 10) 4294967296) .cse4) (<= (+ |c_thread2Thread1of1ForFork0_~i~1#1| (* 4294967296 (div c_~N~0 4294967296)) 1) (+ c_~N~0 (* 4294967296 (div |c_thread2Thread1of1ForFork0_~i~1#1| 4294967296)))) (< (mod (+ |c_thread4Thread1of1ForFork3_~i~3#1| 4) 4294967296) .cse9) (< (mod (+ 5 |c_thread4Thread1of1ForFork3_#t~post4#1|) 4294967296) .cse9) (< 9 .cse8) (< (mod (+ 7 |c_thread4Thread1of1ForFork3_#t~post4#1|) 4294967296) .cse7) (< (mod (+ 6 |c_thread4Thread1of1ForFork3_#t~post4#1|) 4294967296) .cse6) (< (mod (+ 7 |c_thread4Thread1of1ForFork3_~i~3#1|) 4294967296) .cse3))) is different from false [2022-12-13 09:43:44,295 WARN L233 SmtUtils]: Spent 15.43s on a formula simplification. DAG size of input: 78 DAG size of output: 19 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 09:45:11,933 WARN L233 SmtUtils]: Spent 51.88s on a formula simplification. DAG size of input: 86 DAG size of output: 27 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 09:46:10,763 WARN L233 SmtUtils]: Spent 18.49s on a formula simplification. DAG size of input: 82 DAG size of output: 23 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 09:47:34,811 WARN L233 SmtUtils]: Spent 46.22s on a formula simplification. DAG size of input: 89 DAG size of output: 30 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 09:47:37,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-13 09:47:39,477 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-13 09:47:41,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-13 09:47:44,144 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 (+ (mod (+ c_thread3Thread1of1ForFork1_~i~2 1) 4294967296) 1)) (.cse0 (mod (+ |c_thread4Thread1of1ForFork3_~i~3#1| 2) 4294967296)) (.cse3 (mod (+ |c_thread4Thread1of1ForFork3_~i~3#1| 3) 4294967296)) (.cse7 (+ (mod (+ 2 c_thread3Thread1of1ForFork1_~i~2) 4294967296) 1)) (.cse5 (mod (+ |c_thread4Thread1of1ForFork3_~i~3#1| 9) 4294967296)) (.cse8 (+ (mod (+ 9 c_thread3Thread1of1ForFork1_~i~2) 4294967296) 1)) (.cse6 (+ (mod (+ c_thread3Thread1of1ForFork1_~i~2 8) 4294967296) 1)) (.cse10 (mod (+ |c_thread4Thread1of1ForFork3_~i~3#1| 8) 4294967296)) (.cse14 (+ (mod (+ 6 c_thread3Thread1of1ForFork1_~i~2) 4294967296) 1)) (.cse9 (mod (+ |c_thread4Thread1of1ForFork3_~i~3#1| 10) 4294967296)) (.cse17 (mod (+ |c_thread4Thread1of1ForFork3_~i~3#1| 4) 4294967296)) (.cse4 (+ (mod (+ 3 c_thread3Thread1of1ForFork1_~i~2) 4294967296) 1)) (.cse16 (mod (+ c_thread3Thread1of1ForFork1_~i~2 10) 4294967296)) (.cse13 (mod (+ |c_thread4Thread1of1ForFork3_~i~3#1| 6) 4294967296)) (.cse12 (+ (mod (+ 5 c_thread3Thread1of1ForFork1_~i~2) 4294967296) 1)) (.cse15 (mod (+ 7 |c_thread4Thread1of1ForFork3_~i~3#1|) 4294967296)) (.cse11 (+ (mod (+ 7 c_thread3Thread1of1ForFork1_~i~2) 4294967296) 1)) (.cse2 (mod (+ |c_thread4Thread1of1ForFork3_~i~3#1| 1) 4294967296))) (and (< .cse0 .cse1) (< .cse2 .cse1) (< .cse3 .cse4) (< .cse5 .cse6) (< .cse0 .cse7) (< .cse3 .cse7) (<= |c_thread2Thread1of1ForFork0_~i~1#1| c_thread3Thread1of1ForFork1_~i~2) (<= c_thread3Thread1of1ForFork1_~i~2 |c_thread2Thread1of1ForFork0_~i~1#1|) (< .cse5 .cse8) (< .cse9 .cse8) (< .cse10 .cse6) (< .cse10 .cse11) (< (mod (+ 5 |c_thread4Thread1of1ForFork3_~i~3#1|) 4294967296) .cse12) (< .cse2 (+ (mod c_thread3Thread1of1ForFork1_~i~2 4294967296) 1)) (< .cse13 .cse14) (< .cse15 .cse14) (< .cse9 (+ .cse16 1)) (< .cse2 (mod c_~N~0 4294967296)) (<= (+ |c_thread2Thread1of1ForFork0_~i~1#1| (* 4294967296 (div c_~N~0 4294967296)) 1) (+ c_~N~0 (* 4294967296 (div |c_thread2Thread1of1ForFork0_~i~1#1| 4294967296)))) (< .cse17 (+ (mod (+ c_thread3Thread1of1ForFork1_~i~2 4) 4294967296) 1)) (< .cse17 .cse4) (< 9 .cse16) (< .cse13 .cse12) (< .cse15 .cse11) (< .cse2 (+ (mod (+ |c_thread3Thread1of1ForFork1_#t~post3| 1) 4294967296) 1)))) is different from false [2022-12-13 09:48:41,231 WARN L233 SmtUtils]: Spent 21.16s on a formula simplification. DAG size of input: 89 DAG size of output: 30 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 09:50:16,222 WARN L233 SmtUtils]: Spent 58.37s on a formula simplification. DAG size of input: 92 DAG size of output: 33 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 09:51:53,441 WARN L233 SmtUtils]: Spent 44.72s on a formula simplification. DAG size of input: 108 DAG size of output: 34 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 09:52:40,416 WARN L233 SmtUtils]: Spent 20.97s on a formula simplification. DAG size of input: 81 DAG size of output: 22 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 09:53:36,239 WARN L233 SmtUtils]: Spent 21.09s on a formula simplification. DAG size of input: 85 DAG size of output: 26 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 09:54:30,364 WARN L233 SmtUtils]: Spent 25.06s on a formula simplification. DAG size of input: 78 DAG size of output: 19 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 09:55:10,080 WARN L233 SmtUtils]: Spent 17.79s on a formula simplification. DAG size of input: 88 DAG size of output: 27 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)