./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-proofs-counter-add-4-semi-Q67.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_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/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_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/config/GemCutterReach.xml -i ../../sv-benchmarks/c/weaver/popl20-proofs-counter-add-4-semi-Q67.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/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_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/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 ec11f673f0852354e1b011c47ea1690182c02849435cfe6b9232c63dc6ffceb8 --- 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 08:51:07,998 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 08:51:08,000 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 08:51:08,012 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 08:51:08,013 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 08:51:08,013 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 08:51:08,014 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 08:51:08,015 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 08:51:08,016 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 08:51:08,017 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 08:51:08,017 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 08:51:08,018 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 08:51:08,018 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 08:51:08,019 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 08:51:08,020 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 08:51:08,020 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 08:51:08,021 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 08:51:08,022 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 08:51:08,022 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 08:51:08,023 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 08:51:08,024 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 08:51:08,025 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 08:51:08,026 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 08:51:08,026 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 08:51:08,028 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 08:51:08,028 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 08:51:08,029 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 08:51:08,029 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 08:51:08,029 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 08:51:08,030 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 08:51:08,030 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 08:51:08,031 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 08:51:08,031 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 08:51:08,032 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 08:51:08,032 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 08:51:08,033 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 08:51:08,033 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 08:51:08,033 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 08:51:08,033 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 08:51:08,034 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 08:51:08,034 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 08:51:08,035 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/config/svcomp-Reach-32bit-GemCutter_Default.epf [2022-12-13 08:51:08,048 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 08:51:08,048 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 08:51:08,048 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 08:51:08,049 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 08:51:08,049 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 08:51:08,049 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 08:51:08,050 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 08:51:08,050 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 08:51:08,050 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 08:51:08,050 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 08:51:08,050 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 08:51:08,050 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 08:51:08,051 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 08:51:08,051 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 08:51:08,051 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 08:51:08,051 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 08:51:08,051 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 08:51:08,051 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 08:51:08,051 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 08:51:08,051 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 08:51:08,052 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 08:51:08,052 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 08:51:08,052 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 08:51:08,052 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 08:51:08,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 08:51:08,052 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 08:51:08,052 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 08:51:08,053 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 08:51:08,053 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 08:51:08,053 INFO L138 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2022-12-13 08:51:08,053 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 08:51:08,053 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-13 08:51:08,053 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-12-13 08:51:08,053 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 08:51:08,054 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-12-13 08:51:08,054 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-12-13 08:51:08,054 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_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec11f673f0852354e1b011c47ea1690182c02849435cfe6b9232c63dc6ffceb8 [2022-12-13 08:51:08,233 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 08:51:08,252 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 08:51:08,254 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 08:51:08,255 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 08:51:08,255 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 08:51:08,256 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/../../sv-benchmarks/c/weaver/popl20-proofs-counter-add-4-semi-Q67.wvr.c [2022-12-13 08:51:10,842 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 08:51:10,998 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 08:51:10,999 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/sv-benchmarks/c/weaver/popl20-proofs-counter-add-4-semi-Q67.wvr.c [2022-12-13 08:51:11,003 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/data/503a40e8f/d5c5d7cffe184269b363e7fd7d8f49bb/FLAG069ba651b [2022-12-13 08:51:11,400 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/data/503a40e8f/d5c5d7cffe184269b363e7fd7d8f49bb [2022-12-13 08:51:11,402 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 08:51:11,403 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 08:51:11,403 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 08:51:11,403 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 08:51:11,406 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 08:51:11,406 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:51:11" (1/1) ... [2022-12-13 08:51:11,407 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67bb8a1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:51:11, skipping insertion in model container [2022-12-13 08:51:11,407 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:51:11" (1/1) ... [2022-12-13 08:51:11,412 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 08:51:11,424 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 08:51:11,526 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 08:51:11,527 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 08:51:11,529 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 08:51:11,530 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 08:51:11,531 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 08:51:11,531 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 08:51:11,532 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 08:51:11,532 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 08:51:11,538 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_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/sv-benchmarks/c/weaver/popl20-proofs-counter-add-4-semi-Q67.wvr.c[2611,2624] [2022-12-13 08:51:11,542 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 08:51:11,549 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 08:51:11,558 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 08:51:11,558 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 08:51:11,559 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 08:51:11,559 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 08:51:11,560 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 08:51:11,560 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 08:51:11,561 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 08:51:11,561 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 08:51:11,566 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_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/sv-benchmarks/c/weaver/popl20-proofs-counter-add-4-semi-Q67.wvr.c[2611,2624] [2022-12-13 08:51:11,567 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 08:51:11,577 INFO L208 MainTranslator]: Completed translation [2022-12-13 08:51:11,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:51:11 WrapperNode [2022-12-13 08:51:11,577 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 08:51:11,578 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 08:51:11,578 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 08:51:11,578 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 08:51:11,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:51:11" (1/1) ... [2022-12-13 08:51:11,589 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:51:11" (1/1) ... [2022-12-13 08:51:11,603 INFO L138 Inliner]: procedures = 22, calls = 42, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 133 [2022-12-13 08:51:11,603 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 08:51:11,604 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 08:51:11,604 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 08:51:11,604 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 08:51:11,611 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:51:11" (1/1) ... [2022-12-13 08:51:11,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:51:11" (1/1) ... [2022-12-13 08:51:11,614 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:51:11" (1/1) ... [2022-12-13 08:51:11,614 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:51:11" (1/1) ... [2022-12-13 08:51:11,620 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:51:11" (1/1) ... [2022-12-13 08:51:11,624 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:51:11" (1/1) ... [2022-12-13 08:51:11,625 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:51:11" (1/1) ... [2022-12-13 08:51:11,626 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:51:11" (1/1) ... [2022-12-13 08:51:11,629 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 08:51:11,630 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 08:51:11,630 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 08:51:11,630 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 08:51:11,631 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:51:11" (1/1) ... [2022-12-13 08:51:11,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 08:51:11,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 08:51:11,655 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 08:51:11,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 08:51:11,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 08:51:11,689 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-13 08:51:11,689 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-13 08:51:11,689 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-13 08:51:11,689 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-13 08:51:11,689 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-13 08:51:11,689 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-13 08:51:11,690 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-12-13 08:51:11,690 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-12-13 08:51:11,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 08:51:11,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 08:51:11,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 08:51:11,690 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 08:51:11,690 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 08:51:11,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 08:51:11,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 08:51:11,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 08:51:11,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 08:51:11,692 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 08:51:11,775 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 08:51:11,777 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 08:51:11,974 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 08:51:12,019 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 08:51:12,020 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-13 08:51:12,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:51:12 BoogieIcfgContainer [2022-12-13 08:51:12,021 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 08:51:12,023 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 08:51:12,023 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 08:51:12,026 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 08:51:12,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 08:51:11" (1/3) ... [2022-12-13 08:51:12,026 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59a49fac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:51:12, skipping insertion in model container [2022-12-13 08:51:12,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:51:11" (2/3) ... [2022-12-13 08:51:12,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59a49fac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:51:12, skipping insertion in model container [2022-12-13 08:51:12,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:51:12" (3/3) ... [2022-12-13 08:51:12,028 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-proofs-counter-add-4-semi-Q67.wvr.c [2022-12-13 08:51:12,034 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 08:51:12,042 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 08:51:12,042 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 08:51:12,042 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 08:51:12,091 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-12-13 08:51:12,124 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 08:51:12,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-12-13 08:51:12,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 08:51:12,125 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-12-13 08:51:12,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-12-13 08:51:12,160 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-12-13 08:51:12,175 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-12-13 08:51:12,180 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;@6bcbcd92, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 08:51:12,181 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-13 08:51:12,392 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 08:51:12,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:51:12,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1915403448, now seen corresponding path program 1 times [2022-12-13 08:51:12,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:51:12,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710235849] [2022-12-13 08:51:12,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:51:12,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:51:12,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:51:12,589 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-12-13 08:51:12,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:51:12,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710235849] [2022-12-13 08:51:12,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710235849] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 08:51:12,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 08:51:12,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 08:51:12,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336904410] [2022-12-13 08:51:12,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 08:51:12,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 08:51:12,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:51:12,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 08:51:12,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 08:51:12,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:51:12,618 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 08:51:12,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 54.0) internal successors, (108), 2 states have internal predecessors, (108), 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 08:51:12,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:51:12,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:51:12,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 08:51:12,675 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 08:51:12,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:51:12,676 INFO L85 PathProgramCache]: Analyzing trace with hash 441096682, now seen corresponding path program 1 times [2022-12-13 08:51:12,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:51:12,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048977574] [2022-12-13 08:51:12,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:51:12,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:51:12,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:51:13,398 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 13 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 08:51:13,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:51:13,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048977574] [2022-12-13 08:51:13,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048977574] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 08:51:13,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2011987912] [2022-12-13 08:51:13,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:51:13,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:51:13,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 08:51:13,413 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 08:51:13,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 08:51:13,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:51:13,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 15 conjunts are in the unsatisfiable core [2022-12-13 08:51:13,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 08:51:14,078 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 08:51:14,078 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 08:51:14,519 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 08:51:14,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2011987912] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 08:51:14,520 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 08:51:14,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 37 [2022-12-13 08:51:14,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312468442] [2022-12-13 08:51:14,521 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 08:51:14,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-12-13 08:51:14,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:51:14,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-12-13 08:51:14,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=1134, Unknown=0, NotChecked=0, Total=1332 [2022-12-13 08:51:14,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:51:14,527 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 08:51:14,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 7.702702702702703) internal successors, (285), 37 states have internal predecessors, (285), 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 08:51:14,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:51:14,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:51:15,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:51:15,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-12-13 08:51:15,953 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-13 08:51:16,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:51:16,149 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 08:51:16,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:51:16,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1380707037, now seen corresponding path program 2 times [2022-12-13 08:51:16,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:51:16,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758002270] [2022-12-13 08:51:16,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:51:16,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:51:16,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:51:16,847 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 25 proven. 83 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-12-13 08:51:16,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:51:16,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758002270] [2022-12-13 08:51:16,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758002270] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 08:51:16,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1013952181] [2022-12-13 08:51:16,848 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 08:51:16,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:51:16,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 08:51:16,849 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 08:51:16,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 08:51:16,948 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 08:51:16,948 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 08:51:16,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 23 conjunts are in the unsatisfiable core [2022-12-13 08:51:16,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 08:51:17,669 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 64 proven. 189 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-13 08:51:17,669 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 08:51:18,296 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 64 proven. 189 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-13 08:51:18,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1013952181] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 08:51:18,296 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 08:51:18,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 22, 22] total 53 [2022-12-13 08:51:18,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132861088] [2022-12-13 08:51:18,297 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 08:51:18,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-12-13 08:51:18,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:51:18,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-12-13 08:51:18,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=403, Invalid=2353, Unknown=0, NotChecked=0, Total=2756 [2022-12-13 08:51:18,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:51:18,302 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 08:51:18,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 6.962264150943396) internal successors, (369), 53 states have internal predecessors, (369), 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 08:51:18,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:51:18,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-12-13 08:51:18,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:51:25,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:51:25,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-12-13 08:51:25,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 164 states. [2022-12-13 08:51:25,860 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 08:51:26,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:51:26,058 INFO L420 AbstractCegarLoop]: === Iteration 4 === 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 08:51:26,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:51:26,060 INFO L85 PathProgramCache]: Analyzing trace with hash 286213278, now seen corresponding path program 3 times [2022-12-13 08:51:26,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:51:26,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405614600] [2022-12-13 08:51:26,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:51:26,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:51:26,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:51:27,060 INFO L134 CoverageAnalysis]: Checked inductivity of 993 backedges. 106 proven. 87 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2022-12-13 08:51:27,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:51:27,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405614600] [2022-12-13 08:51:27,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405614600] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 08:51:27,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1150407846] [2022-12-13 08:51:27,061 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 08:51:27,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:51:27,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 08:51:27,062 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 08:51:27,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 08:51:27,256 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 17 check-sat command(s) [2022-12-13 08:51:27,256 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 08:51:27,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 731 conjuncts, 39 conjunts are in the unsatisfiable core [2022-12-13 08:51:27,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 08:51:28,265 INFO L134 CoverageAnalysis]: Checked inductivity of 993 backedges. 106 proven. 885 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 08:51:28,265 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 08:51:29,110 INFO L134 CoverageAnalysis]: Checked inductivity of 993 backedges. 106 proven. 885 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 08:51:29,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1150407846] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 08:51:29,111 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 08:51:29,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 38, 38] total 81 [2022-12-13 08:51:29,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280905003] [2022-12-13 08:51:29,111 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 08:51:29,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 81 states [2022-12-13 08:51:29,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:51:29,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2022-12-13 08:51:29,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1259, Invalid=5221, Unknown=0, NotChecked=0, Total=6480 [2022-12-13 08:51:29,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:51:29,115 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 08:51:29,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 81 states, 81 states have (on average 5.91358024691358) internal successors, (479), 81 states have internal predecessors, (479), 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 08:51:29,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:51:29,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-12-13 08:51:29,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 164 states. [2022-12-13 08:51:29,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:51:33,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:51:33,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-12-13 08:51:33,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 166 states. [2022-12-13 08:51:33,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-12-13 08:51:34,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-13 08:51:34,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:51:34,200 INFO L420 AbstractCegarLoop]: === Iteration 5 === 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 08:51:34,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:51:34,201 INFO L85 PathProgramCache]: Analyzing trace with hash 804619320, now seen corresponding path program 4 times [2022-12-13 08:51:34,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:51:34,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736424356] [2022-12-13 08:51:34,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:51:34,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:51:34,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:51:35,487 INFO L134 CoverageAnalysis]: Checked inductivity of 1409 backedges. 94 proven. 242 refuted. 0 times theorem prover too weak. 1073 trivial. 0 not checked. [2022-12-13 08:51:35,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:51:35,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736424356] [2022-12-13 08:51:35,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736424356] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 08:51:35,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1623264926] [2022-12-13 08:51:35,488 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 08:51:35,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:51:35,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 08:51:35,489 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 08:51:35,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 08:51:35,652 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 08:51:35,652 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 08:51:35,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 789 conjuncts, 80 conjunts are in the unsatisfiable core [2022-12-13 08:51:35,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 08:51:35,946 INFO L134 CoverageAnalysis]: Checked inductivity of 1409 backedges. 150 proven. 86 refuted. 0 times theorem prover too weak. 1173 trivial. 0 not checked. [2022-12-13 08:51:35,946 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 08:51:36,429 INFO L134 CoverageAnalysis]: Checked inductivity of 1409 backedges. 150 proven. 86 refuted. 0 times theorem prover too weak. 1173 trivial. 0 not checked. [2022-12-13 08:51:36,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1623264926] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 08:51:36,430 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 08:51:36,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 7, 7] total 20 [2022-12-13 08:51:36,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636967470] [2022-12-13 08:51:36,431 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 08:51:36,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-12-13 08:51:36,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:51:36,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-12-13 08:51:36,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2022-12-13 08:51:36,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:51:36,433 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 08:51:36,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 14.3) internal successors, (286), 20 states have internal predecessors, (286), 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 08:51:36,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:51:36,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2022-12-13 08:51:36,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 166 states. [2022-12-13 08:51:36,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2022-12-13 08:51:36,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:51:37,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:51:37,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-12-13 08:51:37,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2022-12-13 08:51:37,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-12-13 08:51:37,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-13 08:51:37,484 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 08:51:37,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:51:37,682 INFO L420 AbstractCegarLoop]: === Iteration 6 === 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 08:51:37,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:51:37,683 INFO L85 PathProgramCache]: Analyzing trace with hash -579007405, now seen corresponding path program 5 times [2022-12-13 08:51:37,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:51:37,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873231541] [2022-12-13 08:51:37,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:51:37,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:51:37,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:51:39,447 INFO L134 CoverageAnalysis]: Checked inductivity of 1444 backedges. 0 proven. 248 refuted. 0 times theorem prover too weak. 1196 trivial. 0 not checked. [2022-12-13 08:51:39,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:51:39,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873231541] [2022-12-13 08:51:39,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873231541] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 08:51:39,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1973599208] [2022-12-13 08:51:39,448 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-13 08:51:39,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:51:39,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 08:51:39,449 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 08:51:39,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 08:51:39,632 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 20 check-sat command(s) [2022-12-13 08:51:39,632 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 08:51:39,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 831 conjuncts, 159 conjunts are in the unsatisfiable core [2022-12-13 08:51:39,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 08:51:40,017 INFO L134 CoverageAnalysis]: Checked inductivity of 1444 backedges. 0 proven. 248 refuted. 0 times theorem prover too weak. 1196 trivial. 0 not checked. [2022-12-13 08:51:40,017 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 08:51:40,348 INFO L134 CoverageAnalysis]: Checked inductivity of 1444 backedges. 0 proven. 248 refuted. 0 times theorem prover too weak. 1196 trivial. 0 not checked. [2022-12-13 08:51:40,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1973599208] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 08:51:40,348 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 08:51:40,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 7 [2022-12-13 08:51:40,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766910134] [2022-12-13 08:51:40,349 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 08:51:40,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 08:51:40,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:51:40,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 08:51:40,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 08:51:40,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:51:40,351 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 08:51:40,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 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 08:51:40,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:51:40,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2022-12-13 08:51:40,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 167 states. [2022-12-13 08:51:40,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2022-12-13 08:51:40,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-12-13 08:51:40,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:51:40,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:51:40,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-12-13 08:51:40,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2022-12-13 08:51:40,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-12-13 08:51:40,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-13 08:51:40,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 08:51:40,457 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 08:51:40,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:51:40,654 INFO L420 AbstractCegarLoop]: === Iteration 7 === 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 08:51:40,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:51:40,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1861199353, now seen corresponding path program 6 times [2022-12-13 08:51:40,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:51:40,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958120124] [2022-12-13 08:51:40,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:51:40,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:51:40,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:51:41,590 INFO L134 CoverageAnalysis]: Checked inductivity of 1602 backedges. 60 proven. 225 refuted. 0 times theorem prover too weak. 1317 trivial. 0 not checked. [2022-12-13 08:51:41,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:51:41,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958120124] [2022-12-13 08:51:41,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958120124] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 08:51:41,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [985532505] [2022-12-13 08:51:41,591 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-12-13 08:51:41,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:51:41,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 08:51:41,592 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 08:51:41,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 08:51:41,792 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 20 check-sat command(s) [2022-12-13 08:51:41,792 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 08:51:41,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 861 conjuncts, 47 conjunts are in the unsatisfiable core [2022-12-13 08:51:41,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 08:51:42,972 INFO L134 CoverageAnalysis]: Checked inductivity of 1602 backedges. 37 proven. 1565 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 08:51:42,972 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 08:51:44,501 INFO L134 CoverageAnalysis]: Checked inductivity of 1602 backedges. 39 proven. 1563 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 08:51:44,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [985532505] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 08:51:44,502 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 08:51:44,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 46, 46] total 98 [2022-12-13 08:51:44,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349068529] [2022-12-13 08:51:44,502 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 08:51:44,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2022-12-13 08:51:44,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:51:44,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2022-12-13 08:51:44,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1471, Invalid=8035, Unknown=0, NotChecked=0, Total=9506 [2022-12-13 08:51:44,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:51:44,514 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 08:51:44,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 98 states, 98 states have (on average 5.887755102040816) internal successors, (577), 98 states have internal predecessors, (577), 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 08:51:44,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:51:44,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2022-12-13 08:51:44,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 167 states. [2022-12-13 08:51:44,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2022-12-13 08:51:44,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-12-13 08:51:44,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-12-13 08:51:44,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:52:21,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:52:21,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-12-13 08:52:21,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2022-12-13 08:52:21,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-12-13 08:52:21,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-13 08:52:21,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 08:52:21,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 442 states. [2022-12-13 08:52:21,400 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-13 08:52:21,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:52:21,598 INFO L420 AbstractCegarLoop]: === Iteration 8 === 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 08:52:21,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:52:21,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1751249135, now seen corresponding path program 7 times [2022-12-13 08:52:21,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:52:21,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179670017] [2022-12-13 08:52:21,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:52:21,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:52:21,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:52:27,007 INFO L134 CoverageAnalysis]: Checked inductivity of 6084 backedges. 0 proven. 821 refuted. 0 times theorem prover too weak. 5263 trivial. 0 not checked. [2022-12-13 08:52:27,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:52:27,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179670017] [2022-12-13 08:52:27,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179670017] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 08:52:27,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [135902009] [2022-12-13 08:52:27,008 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-12-13 08:52:27,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:52:27,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 08:52:27,009 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 08:52:27,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 08:52:27,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:52:27,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 1431 conjuncts, 319 conjunts are in the unsatisfiable core [2022-12-13 08:52:27,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 08:52:27,862 INFO L134 CoverageAnalysis]: Checked inductivity of 6084 backedges. 0 proven. 821 refuted. 0 times theorem prover too weak. 5263 trivial. 0 not checked. [2022-12-13 08:52:27,863 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 08:52:28,454 INFO L134 CoverageAnalysis]: Checked inductivity of 6084 backedges. 0 proven. 821 refuted. 0 times theorem prover too weak. 5263 trivial. 0 not checked. [2022-12-13 08:52:28,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [135902009] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 08:52:28,454 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 08:52:28,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 8 [2022-12-13 08:52:28,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231803552] [2022-12-13 08:52:28,454 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 08:52:28,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 08:52:28,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:52:28,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 08:52:28,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-13 08:52:28,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:52:28,455 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 08:52:28,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.125) internal successors, (121), 8 states have internal predecessors, (121), 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 08:52:28,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:52:28,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2022-12-13 08:52:28,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 167 states. [2022-12-13 08:52:28,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2022-12-13 08:52:28,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-12-13 08:52:28,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-12-13 08:52:28,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 442 states. [2022-12-13 08:52:28,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:52:28,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:52:28,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-12-13 08:52:28,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2022-12-13 08:52:28,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-12-13 08:52:28,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-12-13 08:52:28,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 08:52:28,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 442 states. [2022-12-13 08:52:28,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 08:52:28,572 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-13 08:52:28,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-12-13 08:52:28,768 INFO L420 AbstractCegarLoop]: === Iteration 9 === 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 08:52:28,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:52:28,770 INFO L85 PathProgramCache]: Analyzing trace with hash 951143275, now seen corresponding path program 8 times [2022-12-13 08:52:28,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:52:28,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105611744] [2022-12-13 08:52:28,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:52:28,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:52:28,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:52:34,363 INFO L134 CoverageAnalysis]: Checked inductivity of 6400 backedges. 0 proven. 1172 refuted. 0 times theorem prover too weak. 5228 trivial. 0 not checked. [2022-12-13 08:52:34,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:52:34,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105611744] [2022-12-13 08:52:34,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105611744] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 08:52:34,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1998368964] [2022-12-13 08:52:34,364 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 08:52:34,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:52:34,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 08:52:34,365 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 08:52:34,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-13 08:52:34,571 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 08:52:34,571 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 08:52:34,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 1461 conjuncts, 327 conjunts are in the unsatisfiable core [2022-12-13 08:52:34,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 08:52:35,229 INFO L134 CoverageAnalysis]: Checked inductivity of 6400 backedges. 0 proven. 1172 refuted. 0 times theorem prover too weak. 5228 trivial. 0 not checked. [2022-12-13 08:52:35,229 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 08:52:35,788 INFO L134 CoverageAnalysis]: Checked inductivity of 6400 backedges. 0 proven. 1172 refuted. 0 times theorem prover too weak. 5228 trivial. 0 not checked. [2022-12-13 08:52:35,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1998368964] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 08:52:35,788 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 08:52:35,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 9 [2022-12-13 08:52:35,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33108272] [2022-12-13 08:52:35,789 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 08:52:35,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 08:52:35,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:52:35,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 08:52:35,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 08:52:35,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:52:35,790 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 08:52:35,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 9 states have internal predecessors, (129), 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 08:52:35,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:52:35,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2022-12-13 08:52:35,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 167 states. [2022-12-13 08:52:35,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2022-12-13 08:52:35,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-12-13 08:52:35,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-12-13 08:52:35,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 442 states. [2022-12-13 08:52:35,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-12-13 08:52:35,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:52:35,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:52:35,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-12-13 08:52:35,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2022-12-13 08:52:35,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-12-13 08:52:35,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-12-13 08:52:35,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 08:52:35,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 442 states. [2022-12-13 08:52:35,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 08:52:35,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 08:52:35,919 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-13 08:52:36,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:52:36,115 INFO L420 AbstractCegarLoop]: === Iteration 10 === 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 08:52:36,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:52:36,116 INFO L85 PathProgramCache]: Analyzing trace with hash -209177217, now seen corresponding path program 9 times [2022-12-13 08:52:36,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:52:36,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765574182] [2022-12-13 08:52:36,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:52:36,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:52:36,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:52:39,042 INFO L134 CoverageAnalysis]: Checked inductivity of 6564 backedges. 861 proven. 698 refuted. 0 times theorem prover too weak. 5005 trivial. 0 not checked. [2022-12-13 08:52:39,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:52:39,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765574182] [2022-12-13 08:52:39,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765574182] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 08:52:39,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [408757259] [2022-12-13 08:52:39,042 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 08:52:39,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:52:39,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 08:52:39,043 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 08:52:39,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-13 08:52:39,557 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 39 check-sat command(s) [2022-12-13 08:52:39,557 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 08:52:39,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 1471 conjuncts, 88 conjunts are in the unsatisfiable core [2022-12-13 08:52:39,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 08:52:42,730 INFO L134 CoverageAnalysis]: Checked inductivity of 6564 backedges. 56 proven. 6508 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 08:52:42,730 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 08:52:46,512 INFO L134 CoverageAnalysis]: Checked inductivity of 6564 backedges. 60 proven. 6504 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 08:52:46,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [408757259] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 08:52:46,513 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 08:52:46,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 87, 87] total 186 [2022-12-13 08:52:46,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193835210] [2022-12-13 08:52:46,514 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 08:52:46,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 186 states [2022-12-13 08:52:46,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:52:46,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 186 interpolants. [2022-12-13 08:52:46,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7333, Invalid=27077, Unknown=0, NotChecked=0, Total=34410 [2022-12-13 08:52:46,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:52:46,535 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 08:52:46,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 186 states, 186 states have (on average 5.021505376344086) internal successors, (934), 186 states have internal predecessors, (934), 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 08:52:46,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:52:46,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2022-12-13 08:52:46,537 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 167 states. [2022-12-13 08:52:46,537 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2022-12-13 08:52:46,537 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-12-13 08:52:46,537 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-12-13 08:52:46,537 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 442 states. [2022-12-13 08:52:46,537 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-12-13 08:52:46,537 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-12-13 08:52:46,537 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:53:08,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:53:08,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-12-13 08:53:08,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2022-12-13 08:53:08,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-12-13 08:53:08,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-12-13 08:53:08,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 08:53:08,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 442 states. [2022-12-13 08:53:08,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 08:53:08,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 08:53:08,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 248 states. [2022-12-13 08:53:08,324 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-12-13 08:53:08,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-13 08:53:08,519 INFO L420 AbstractCegarLoop]: === Iteration 11 === 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 08:53:08,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:53:08,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1596368992, now seen corresponding path program 10 times [2022-12-13 08:53:08,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:53:08,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282683024] [2022-12-13 08:53:08,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:53:08,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:53:08,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:53:11,500 INFO L134 CoverageAnalysis]: Checked inductivity of 7483 backedges. 103 proven. 2071 refuted. 0 times theorem prover too weak. 5309 trivial. 0 not checked. [2022-12-13 08:53:11,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:53:11,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282683024] [2022-12-13 08:53:11,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282683024] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 08:53:11,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2080634059] [2022-12-13 08:53:11,501 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 08:53:11,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:53:11,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 08:53:11,502 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 08:53:11,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-12-13 08:53:11,685 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 08:53:11,685 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 08:53:11,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 1519 conjuncts, 180 conjunts are in the unsatisfiable core [2022-12-13 08:53:11,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 08:53:12,074 INFO L134 CoverageAnalysis]: Checked inductivity of 7483 backedges. 161 proven. 1789 refuted. 0 times theorem prover too weak. 5533 trivial. 0 not checked. [2022-12-13 08:53:12,075 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 08:53:13,796 INFO L134 CoverageAnalysis]: Checked inductivity of 7483 backedges. 161 proven. 1789 refuted. 0 times theorem prover too weak. 5533 trivial. 0 not checked. [2022-12-13 08:53:13,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2080634059] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 08:53:13,796 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 08:53:13,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 8, 8] total 25 [2022-12-13 08:53:13,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524831759] [2022-12-13 08:53:13,797 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 08:53:13,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-13 08:53:13,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:53:13,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-13 08:53:13,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=496, Unknown=0, NotChecked=0, Total=600 [2022-12-13 08:53:13,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:53:13,798 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 08:53:13,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.4) internal successors, (260), 25 states have internal predecessors, (260), 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 08:53:13,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:53:13,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2022-12-13 08:53:13,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 167 states. [2022-12-13 08:53:13,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2022-12-13 08:53:13,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-12-13 08:53:13,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-12-13 08:53:13,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 442 states. [2022-12-13 08:53:13,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-12-13 08:53:13,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-12-13 08:53:13,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 248 states. [2022-12-13 08:53:13,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:53:14,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:53:14,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-12-13 08:53:14,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2022-12-13 08:53:14,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-12-13 08:53:14,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-12-13 08:53:14,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 08:53:14,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 442 states. [2022-12-13 08:53:14,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 08:53:14,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 08:53:14,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 248 states. [2022-12-13 08:53:14,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-12-13 08:53:14,449 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-12-13 08:53:14,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-12-13 08:53:14,644 INFO L420 AbstractCegarLoop]: === Iteration 12 === 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 08:53:14,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:53:14,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1670039971, now seen corresponding path program 11 times [2022-12-13 08:53:14,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:53:14,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384336269] [2022-12-13 08:53:14,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:53:14,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:53:14,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:53:21,116 INFO L134 CoverageAnalysis]: Checked inductivity of 7396 backedges. 0 proven. 1863 refuted. 0 times theorem prover too weak. 5533 trivial. 0 not checked. [2022-12-13 08:53:21,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:53:21,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384336269] [2022-12-13 08:53:21,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384336269] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 08:53:21,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1410989149] [2022-12-13 08:53:21,116 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-13 08:53:21,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:53:21,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 08:53:21,117 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 08:53:21,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-12-13 08:53:21,538 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 40 check-sat command(s) [2022-12-13 08:53:21,538 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 08:53:21,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 1551 conjuncts, 351 conjunts are in the unsatisfiable core [2022-12-13 08:53:21,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 08:53:22,259 INFO L134 CoverageAnalysis]: Checked inductivity of 7396 backedges. 0 proven. 1863 refuted. 0 times theorem prover too weak. 5533 trivial. 0 not checked. [2022-12-13 08:53:22,259 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 08:53:23,007 INFO L134 CoverageAnalysis]: Checked inductivity of 7396 backedges. 0 proven. 1863 refuted. 0 times theorem prover too weak. 5533 trivial. 0 not checked. [2022-12-13 08:53:23,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1410989149] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 08:53:23,007 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 08:53:23,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 10 [2022-12-13 08:53:23,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853045954] [2022-12-13 08:53:23,007 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 08:53:23,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 08:53:23,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:53:23,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 08:53:23,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 08:53:23,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:53:23,008 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 08:53:23,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.8) internal successors, (138), 10 states have internal predecessors, (138), 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 08:53:23,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:53:23,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2022-12-13 08:53:23,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 167 states. [2022-12-13 08:53:23,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2022-12-13 08:53:23,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-12-13 08:53:23,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-12-13 08:53:23,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 442 states. [2022-12-13 08:53:23,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-12-13 08:53:23,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-12-13 08:53:23,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 248 states. [2022-12-13 08:53:23,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-12-13 08:53:23,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:53:23,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:53:23,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-12-13 08:53:23,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2022-12-13 08:53:23,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-12-13 08:53:23,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-12-13 08:53:23,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 08:53:23,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 442 states. [2022-12-13 08:53:23,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 08:53:23,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 08:53:23,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 248 states. [2022-12-13 08:53:23,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-12-13 08:53:23,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 08:53:23,227 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-12-13 08:53:23,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:53:23,422 INFO L420 AbstractCegarLoop]: === Iteration 13 === 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 08:53:23,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:53:23,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1603387831, now seen corresponding path program 12 times [2022-12-13 08:53:23,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:53:23,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487177724] [2022-12-13 08:53:23,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:53:23,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:53:23,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:53:30,048 INFO L134 CoverageAnalysis]: Checked inductivity of 7744 backedges. 0 proven. 2211 refuted. 0 times theorem prover too weak. 5533 trivial. 0 not checked. [2022-12-13 08:53:30,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:53:30,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487177724] [2022-12-13 08:53:30,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487177724] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 08:53:30,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [925223045] [2022-12-13 08:53:30,048 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-12-13 08:53:30,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:53:30,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 08:53:30,049 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 08:53:30,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-12-13 08:53:30,617 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 40 check-sat command(s) [2022-12-13 08:53:30,617 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 08:53:30,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 1581 conjuncts, 359 conjunts are in the unsatisfiable core [2022-12-13 08:53:30,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 08:53:31,343 INFO L134 CoverageAnalysis]: Checked inductivity of 7744 backedges. 0 proven. 2211 refuted. 0 times theorem prover too weak. 5533 trivial. 0 not checked. [2022-12-13 08:53:31,343 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 08:53:32,069 INFO L134 CoverageAnalysis]: Checked inductivity of 7744 backedges. 0 proven. 2211 refuted. 0 times theorem prover too weak. 5533 trivial. 0 not checked. [2022-12-13 08:53:32,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [925223045] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 08:53:32,069 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 08:53:32,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 11 [2022-12-13 08:53:32,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834383777] [2022-12-13 08:53:32,070 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 08:53:32,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 08:53:32,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:53:32,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 08:53:32,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-12-13 08:53:32,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:53:32,071 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 08:53:32,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 13.272727272727273) internal successors, (146), 11 states have internal predecessors, (146), 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 08:53:32,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:53:32,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2022-12-13 08:53:32,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 167 states. [2022-12-13 08:53:32,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2022-12-13 08:53:32,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-12-13 08:53:32,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-12-13 08:53:32,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 442 states. [2022-12-13 08:53:32,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-12-13 08:53:32,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-12-13 08:53:32,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 248 states. [2022-12-13 08:53:32,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2022-12-13 08:53:32,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-12-13 08:53:32,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:53:32,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:53:32,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-12-13 08:53:32,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2022-12-13 08:53:32,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-12-13 08:53:32,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-12-13 08:53:32,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 08:53:32,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 442 states. [2022-12-13 08:53:32,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 08:53:32,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 08:53:32,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 248 states. [2022-12-13 08:53:32,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-12-13 08:53:32,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 08:53:32,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 08:53:32,256 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-12-13 08:53:32,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:53:32,451 INFO L420 AbstractCegarLoop]: === Iteration 14 === 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 08:53:32,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:53:32,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1233256078, now seen corresponding path program 13 times [2022-12-13 08:53:32,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:53:32,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371808714] [2022-12-13 08:53:32,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:53:32,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:53:32,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:53:36,172 INFO L134 CoverageAnalysis]: Checked inductivity of 8011 backedges. 1668 proven. 1046 refuted. 0 times theorem prover too weak. 5297 trivial. 0 not checked. [2022-12-13 08:53:36,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:53:36,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371808714] [2022-12-13 08:53:36,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371808714] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 08:53:36,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1124362224] [2022-12-13 08:53:36,172 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-12-13 08:53:36,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:53:36,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 08:53:36,173 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 08:53:36,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-12-13 08:53:36,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:53:36,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 1601 conjuncts, 97 conjunts are in the unsatisfiable core [2022-12-13 08:53:36,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 08:53:39,691 INFO L134 CoverageAnalysis]: Checked inductivity of 8011 backedges. 126 proven. 7885 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 08:53:39,691 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 08:53:44,260 INFO L134 CoverageAnalysis]: Checked inductivity of 8011 backedges. 126 proven. 7885 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 08:53:44,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1124362224] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 08:53:44,260 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 08:53:44,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 96, 96] total 206 [2022-12-13 08:53:44,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465716046] [2022-12-13 08:53:44,261 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 08:53:44,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 206 states [2022-12-13 08:53:44,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:53:44,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 206 interpolants. [2022-12-13 08:53:44,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6734, Invalid=35496, Unknown=0, NotChecked=0, Total=42230 [2022-12-13 08:53:44,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:53:44,267 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 08:53:44,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 206 states, 206 states have (on average 4.87378640776699) internal successors, (1004), 206 states have internal predecessors, (1004), 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 08:53:44,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:53:44,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2022-12-13 08:53:44,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 167 states. [2022-12-13 08:53:44,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2022-12-13 08:53:44,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-12-13 08:53:44,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-12-13 08:53:44,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 442 states. [2022-12-13 08:53:44,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-12-13 08:53:44,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-12-13 08:53:44,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 248 states. [2022-12-13 08:53:44,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2022-12-13 08:53:44,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-12-13 08:53:44,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-12-13 08:53:44,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:54:29,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:54:29,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-12-13 08:54:29,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2022-12-13 08:54:29,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-12-13 08:54:29,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-12-13 08:54:29,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 08:54:29,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 442 states. [2022-12-13 08:54:29,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 08:54:29,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 08:54:29,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 248 states. [2022-12-13 08:54:29,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-12-13 08:54:29,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 08:54:29,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 08:54:29,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 261 states. [2022-12-13 08:54:29,222 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-12-13 08:54:29,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-12-13 08:54:29,418 INFO L420 AbstractCegarLoop]: === Iteration 15 === 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 08:54:29,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:54:29,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1194808096, now seen corresponding path program 14 times [2022-12-13 08:54:29,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:54:29,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613110630] [2022-12-13 08:54:29,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:54:29,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:54:29,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:54:36,512 INFO L134 CoverageAnalysis]: Checked inductivity of 8557 backedges. 194 proven. 2605 refuted. 0 times theorem prover too weak. 5758 trivial. 0 not checked. [2022-12-13 08:54:36,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:54:36,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613110630] [2022-12-13 08:54:36,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613110630] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 08:54:36,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1980439984] [2022-12-13 08:54:36,512 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 08:54:36,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:54:36,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 08:54:36,513 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 08:54:36,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-12-13 08:54:36,753 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 08:54:36,753 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 08:54:36,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 1651 conjuncts, 101 conjunts are in the unsatisfiable core [2022-12-13 08:54:36,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 08:54:40,087 INFO L134 CoverageAnalysis]: Checked inductivity of 8557 backedges. 129 proven. 8428 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 08:54:40,088 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 08:54:46,824 INFO L134 CoverageAnalysis]: Checked inductivity of 8557 backedges. 741 proven. 7816 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 08:54:46,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1980439984] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 08:54:46,825 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 08:54:46,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 100, 100] total 206 [2022-12-13 08:54:46,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073899416] [2022-12-13 08:54:46,825 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 08:54:46,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 206 states [2022-12-13 08:54:46,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:54:46,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 206 interpolants. [2022-12-13 08:54:46,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7420, Invalid=34810, Unknown=0, NotChecked=0, Total=42230 [2022-12-13 08:54:46,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:54:46,831 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 08:54:46,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 206 states, 206 states have (on average 5.048543689320389) internal successors, (1040), 206 states have internal predecessors, (1040), 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 08:54:46,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:54:46,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2022-12-13 08:54:46,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 167 states. [2022-12-13 08:54:46,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2022-12-13 08:54:46,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-12-13 08:54:46,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-12-13 08:54:46,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 442 states. [2022-12-13 08:54:46,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-12-13 08:54:46,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-12-13 08:54:46,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 248 states. [2022-12-13 08:54:46,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2022-12-13 08:54:46,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-12-13 08:54:46,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-12-13 08:54:46,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 261 states. [2022-12-13 08:54:46,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:56:15,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:56:15,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-12-13 08:56:15,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2022-12-13 08:56:15,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-12-13 08:56:15,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-12-13 08:56:15,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 08:56:15,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 451 states. [2022-12-13 08:56:15,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 08:56:15,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 08:56:15,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 249 states. [2022-12-13 08:56:15,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-12-13 08:56:15,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 08:56:15,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 08:56:15,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 262 states. [2022-12-13 08:56:15,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 527 states. [2022-12-13 08:56:15,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-12-13 08:56:15,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-12-13 08:56:15,830 INFO L420 AbstractCegarLoop]: === Iteration 16 === 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 08:56:15,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:56:15,831 INFO L85 PathProgramCache]: Analyzing trace with hash -1606659141, now seen corresponding path program 15 times [2022-12-13 08:56:15,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:56:15,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336839408] [2022-12-13 08:56:15,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:56:15,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:56:16,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:56:32,053 INFO L134 CoverageAnalysis]: Checked inductivity of 35392 backedges. 4708 proven. 834 refuted. 0 times theorem prover too weak. 29850 trivial. 0 not checked. [2022-12-13 08:56:32,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:56:32,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336839408] [2022-12-13 08:56:32,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336839408] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 08:56:32,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1017106881] [2022-12-13 08:56:32,054 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 08:56:32,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:56:32,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 08:56:32,055 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 08:56:32,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888d35d2-1b6c-45ba-8d58-785da3ad5fcc/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-12-13 08:56:33,720 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 94 check-sat command(s) [2022-12-13 08:56:33,720 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 08:56:33,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 3061 conjuncts, 192 conjunts are in the unsatisfiable core [2022-12-13 08:56:33,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 08:56:43,442 INFO L134 CoverageAnalysis]: Checked inductivity of 35392 backedges. 509 proven. 34883 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 08:56:43,442 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 08:56:58,492 INFO L134 CoverageAnalysis]: Checked inductivity of 35392 backedges. 984 proven. 34408 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 08:56:58,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1017106881] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 08:56:58,492 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 08:56:58,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 191, 191] total 395 [2022-12-13 08:56:58,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894782649] [2022-12-13 08:56:58,493 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 08:56:58,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 395 states [2022-12-13 08:56:58,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:56:58,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 395 interpolants. [2022-12-13 08:56:58,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36402, Invalid=119228, Unknown=0, NotChecked=0, Total=155630 [2022-12-13 08:56:58,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:56:58,509 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 08:56:58,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 395 states, 395 states have (on average 4.506329113924051) internal successors, (1780), 395 states have internal predecessors, (1780), 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 08:56:58,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 08:56:58,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2022-12-13 08:56:58,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 167 states. [2022-12-13 08:56:58,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2022-12-13 08:56:58,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2022-12-13 08:56:58,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-12-13 08:56:58,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 451 states. [2022-12-13 08:56:58,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-12-13 08:56:58,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-12-13 08:56:58,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 249 states. [2022-12-13 08:56:58,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-12-13 08:56:58,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-12-13 08:56:58,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-12-13 08:56:58,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 262 states. [2022-12-13 08:56:58,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 527 states. [2022-12-13 08:56:58,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.