./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/fib_unsafe-5.i --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_34747a93-48c4-4a47-9899-59988fc99c00/bin/ugemcutter-rbreBovr8w/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34747a93-48c4-4a47-9899-59988fc99c00/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_34747a93-48c4-4a47-9899-59988fc99c00/bin/ugemcutter-rbreBovr8w/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34747a93-48c4-4a47-9899-59988fc99c00/bin/ugemcutter-rbreBovr8w/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread/fib_unsafe-5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34747a93-48c4-4a47-9899-59988fc99c00/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_34747a93-48c4-4a47-9899-59988fc99c00/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 e0f90189cbea201dcd094fc9e84327a00ade17017ada90c5df84c8712afaf176 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 09:45:19,553 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 09:45:19,554 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 09:45:19,567 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 09:45:19,567 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 09:45:19,568 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 09:45:19,569 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 09:45:19,570 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 09:45:19,571 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 09:45:19,572 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 09:45:19,573 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 09:45:19,573 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 09:45:19,574 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 09:45:19,574 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 09:45:19,575 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 09:45:19,576 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 09:45:19,577 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 09:45:19,577 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 09:45:19,578 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 09:45:19,579 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 09:45:19,581 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 09:45:19,583 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 09:45:19,585 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 09:45:19,586 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 09:45:19,593 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 09:45:19,593 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 09:45:19,594 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 09:45:19,595 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 09:45:19,596 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 09:45:19,597 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 09:45:19,597 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 09:45:19,598 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 09:45:19,598 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 09:45:19,599 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 09:45:19,600 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 09:45:19,600 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 09:45:19,600 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 09:45:19,600 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 09:45:19,601 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 09:45:19,601 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 09:45:19,602 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 09:45:19,602 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34747a93-48c4-4a47-9899-59988fc99c00/bin/ugemcutter-rbreBovr8w/config/svcomp-Reach-32bit-GemCutter_Default.epf [2022-12-13 09:45:19,617 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 09:45:19,618 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 09:45:19,618 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 09:45:19,618 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 09:45:19,618 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 09:45:19,619 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 09:45:19,619 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 09:45:19,619 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 09:45:19,619 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 09:45:19,620 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 09:45:19,620 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 09:45:19,620 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 09:45:19,620 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 09:45:19,620 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 09:45:19,620 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 09:45:19,621 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 09:45:19,621 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 09:45:19,621 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 09:45:19,621 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 09:45:19,621 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 09:45:19,621 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 09:45:19,622 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 09:45:19,622 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 09:45:19,622 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 09:45:19,622 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 09:45:19,622 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 09:45:19,623 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 09:45:19,623 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 09:45:19,623 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 09:45:19,623 INFO L138 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2022-12-13 09:45:19,623 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 09:45:19,623 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-13 09:45:19,624 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-12-13 09:45:19,624 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 09:45:19,624 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-12-13 09:45:19,624 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-12-13 09:45:19,624 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_34747a93-48c4-4a47-9899-59988fc99c00/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34747a93-48c4-4a47-9899-59988fc99c00/bin/ugemcutter-rbreBovr8w Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e0f90189cbea201dcd094fc9e84327a00ade17017ada90c5df84c8712afaf176 [2022-12-13 09:45:19,793 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 09:45:19,813 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 09:45:19,815 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 09:45:19,817 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 09:45:19,817 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 09:45:19,818 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34747a93-48c4-4a47-9899-59988fc99c00/bin/ugemcutter-rbreBovr8w/../../sv-benchmarks/c/pthread/fib_unsafe-5.i [2022-12-13 09:45:22,398 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 09:45:22,588 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 09:45:22,588 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34747a93-48c4-4a47-9899-59988fc99c00/sv-benchmarks/c/pthread/fib_unsafe-5.i [2022-12-13 09:45:22,597 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34747a93-48c4-4a47-9899-59988fc99c00/bin/ugemcutter-rbreBovr8w/data/a4cf14b6d/5acc80cb2ba142d28b8f7a43babdd106/FLAGc5f5999b3 [2022-12-13 09:45:22,961 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34747a93-48c4-4a47-9899-59988fc99c00/bin/ugemcutter-rbreBovr8w/data/a4cf14b6d/5acc80cb2ba142d28b8f7a43babdd106 [2022-12-13 09:45:22,965 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 09:45:22,966 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 09:45:22,968 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 09:45:22,968 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 09:45:22,973 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 09:45:22,974 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:45:22" (1/1) ... [2022-12-13 09:45:22,976 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bfaeb6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:45:22, skipping insertion in model container [2022-12-13 09:45:22,976 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:45:22" (1/1) ... [2022-12-13 09:45:22,986 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 09:45:23,022 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 09:45:23,196 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_34747a93-48c4-4a47-9899-59988fc99c00/sv-benchmarks/c/pthread/fib_unsafe-5.i[30243,30256] [2022-12-13 09:45:23,203 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:45:23,204 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:45:23,206 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:45:23,207 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:45:23,209 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:45:23,210 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:45:23,210 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:45:23,210 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:45:23,213 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:45:23,214 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:45:23,214 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 09:45:23,222 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 09:45:23,253 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_34747a93-48c4-4a47-9899-59988fc99c00/sv-benchmarks/c/pthread/fib_unsafe-5.i[30243,30256] [2022-12-13 09:45:23,254 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:45:23,254 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:45:23,255 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:45:23,255 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:45:23,258 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:45:23,258 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:45:23,258 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:45:23,258 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:45:23,260 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:45:23,260 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:45:23,261 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 09:45:23,283 INFO L208 MainTranslator]: Completed translation [2022-12-13 09:45:23,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:45:23 WrapperNode [2022-12-13 09:45:23,283 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 09:45:23,284 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 09:45:23,284 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 09:45:23,284 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 09:45:23,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:45:23" (1/1) ... [2022-12-13 09:45:23,300 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:45:23" (1/1) ... [2022-12-13 09:45:23,315 INFO L138 Inliner]: procedures = 165, calls = 28, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 76 [2022-12-13 09:45:23,315 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 09:45:23,315 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 09:45:23,315 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 09:45:23,316 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 09:45:23,322 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:45:23" (1/1) ... [2022-12-13 09:45:23,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:45:23" (1/1) ... [2022-12-13 09:45:23,324 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:45:23" (1/1) ... [2022-12-13 09:45:23,324 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:45:23" (1/1) ... [2022-12-13 09:45:23,328 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:45:23" (1/1) ... [2022-12-13 09:45:23,330 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:45:23" (1/1) ... [2022-12-13 09:45:23,331 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:45:23" (1/1) ... [2022-12-13 09:45:23,332 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:45:23" (1/1) ... [2022-12-13 09:45:23,334 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 09:45:23,335 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 09:45:23,335 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 09:45:23,335 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 09:45:23,336 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:45:23" (1/1) ... [2022-12-13 09:45:23,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 09:45:23,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34747a93-48c4-4a47-9899-59988fc99c00/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 09:45:23,360 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34747a93-48c4-4a47-9899-59988fc99c00/bin/ugemcutter-rbreBovr8w/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 09:45:23,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34747a93-48c4-4a47-9899-59988fc99c00/bin/ugemcutter-rbreBovr8w/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 09:45:23,398 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-12-13 09:45:23,398 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-12-13 09:45:23,398 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-12-13 09:45:23,399 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-12-13 09:45:23,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 09:45:23,399 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 09:45:23,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 09:45:23,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 09:45:23,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 09:45:23,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 09:45:23,400 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 09:45:23,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 09:45:23,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 09:45:23,401 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 09:45:23,509 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 09:45:23,511 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 09:45:23,659 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 09:45:23,665 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 09:45:23,665 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-13 09:45:23,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:45:23 BoogieIcfgContainer [2022-12-13 09:45:23,667 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 09:45:23,669 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 09:45:23,670 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 09:45:23,672 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 09:45:23,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 09:45:22" (1/3) ... [2022-12-13 09:45:23,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@100da5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:45:23, skipping insertion in model container [2022-12-13 09:45:23,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:45:23" (2/3) ... [2022-12-13 09:45:23,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@100da5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:45:23, skipping insertion in model container [2022-12-13 09:45:23,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:45:23" (3/3) ... [2022-12-13 09:45:23,675 INFO L112 eAbstractionObserver]: Analyzing ICFG fib_unsafe-5.i [2022-12-13 09:45:23,681 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 09:45:23,689 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 09:45:23,689 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 09:45:23,689 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 09:45:23,735 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 09:45:23,772 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 09:45:23,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-12-13 09:45:23,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34747a93-48c4-4a47-9899-59988fc99c00/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 09:45:23,773 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34747a93-48c4-4a47-9899-59988fc99c00/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-12-13 09:45:23,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34747a93-48c4-4a47-9899-59988fc99c00/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-12-13 09:45:23,808 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-12-13 09:45:23,821 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-12-13 09:45:23,826 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;@2d6c85e7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 09:45:23,826 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-13 09:45:23,996 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 09:45:24,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:45:24,002 INFO L85 PathProgramCache]: Analyzing trace with hash -2074354678, now seen corresponding path program 1 times [2022-12-13 09:45:24,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:45:24,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508356694] [2022-12-13 09:45:24,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:45:24,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:45:24,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:45:24,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:45:24,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:45:24,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508356694] [2022-12-13 09:45:24,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508356694] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:45:24,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 09:45:24,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 09:45:24,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984542033] [2022-12-13 09:45:24,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:45:24,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 09:45:24,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:45:24,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 09:45:24,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 09:45:24,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:45:24,288 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:45:24,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 09:45:24,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:45:24,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:45:24,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 09:45:24,346 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 09:45:24,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:45:24,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1842134930, now seen corresponding path program 1 times [2022-12-13 09:45:24,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:45:24,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294817918] [2022-12-13 09:45:24,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:45:24,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:45:24,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:45:24,492 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:45:24,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:45:24,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294817918] [2022-12-13 09:45:24,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294817918] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 09:45:24,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [362026232] [2022-12-13 09:45:24,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:45:24,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:45:24,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34747a93-48c4-4a47-9899-59988fc99c00/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 09:45:24,517 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34747a93-48c4-4a47-9899-59988fc99c00/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 09:45:24,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34747a93-48c4-4a47-9899-59988fc99c00/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 09:45:24,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:45:24,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 09:45:24,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 09:45:24,685 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:45:24,685 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 09:45:24,744 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:45:24,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [362026232] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 09:45:24,745 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 09:45:24,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-12-13 09:45:24,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872181076] [2022-12-13 09:45:24,746 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 09:45:24,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 09:45:24,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:45:24,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 09:45:24,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-12-13 09:45:24,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:45:24,749 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:45:24,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 09:45:24,749 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:45:24,749 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:45:24,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:45:24,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 09:45:24,840 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34747a93-48c4-4a47-9899-59988fc99c00/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-13 09:45:25,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34747a93-48c4-4a47-9899-59988fc99c00/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:45:25,038 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 09:45:25,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:45:25,040 INFO L85 PathProgramCache]: Analyzing trace with hash -2110391314, now seen corresponding path program 2 times [2022-12-13 09:45:25,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:45:25,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927947099] [2022-12-13 09:45:25,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:45:25,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:45:25,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:45:25,388 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:45:25,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:45:25,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927947099] [2022-12-13 09:45:25,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927947099] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 09:45:25,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [377515678] [2022-12-13 09:45:25,389 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 09:45:25,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:45:25,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34747a93-48c4-4a47-9899-59988fc99c00/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 09:45:25,390 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34747a93-48c4-4a47-9899-59988fc99c00/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 09:45:25,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34747a93-48c4-4a47-9899-59988fc99c00/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 09:45:25,476 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 09:45:25,477 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 09:45:25,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 09:45:25,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 09:45:25,595 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:45:25,595 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 09:45:25,716 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:45:25,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [377515678] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 09:45:25,716 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 09:45:25,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-12-13 09:45:25,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016163676] [2022-12-13 09:45:25,717 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 09:45:25,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-13 09:45:25,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:45:25,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-13 09:45:25,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-12-13 09:45:25,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:45:25,720 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:45:25,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 11.222222222222221) internal successors, (202), 18 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 09:45:25,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:45:25,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-12-13 09:45:25,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:45:25,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:45:25,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 09:45:25,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:45:25,919 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34747a93-48c4-4a47-9899-59988fc99c00/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 09:45:26,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34747a93-48c4-4a47-9899-59988fc99c00/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:45:26,114 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 09:45:26,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:45:26,115 INFO L85 PathProgramCache]: Analyzing trace with hash -37301522, now seen corresponding path program 3 times [2022-12-13 09:45:26,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:45:26,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297312979] [2022-12-13 09:45:26,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:45:26,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:45:26,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:45:26,475 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 0 proven. 434 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:45:26,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:45:26,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297312979] [2022-12-13 09:45:26,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297312979] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 09:45:26,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [373251426] [2022-12-13 09:45:26,476 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 09:45:26,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:45:26,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34747a93-48c4-4a47-9899-59988fc99c00/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 09:45:26,478 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34747a93-48c4-4a47-9899-59988fc99c00/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 09:45:26,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34747a93-48c4-4a47-9899-59988fc99c00/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 09:45:26,579 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-12-13 09:45:26,579 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 09:45:26,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 16 conjunts are in the unsatisfiable core [2022-12-13 09:45:26,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 09:45:26,889 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 434 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:45:26,889 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 09:45:26,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [373251426] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:45:26,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 09:45:26,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [17] total 32 [2022-12-13 09:45:26,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225176692] [2022-12-13 09:45:26,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:45:26,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-13 09:45:26,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:45:26,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-13 09:45:26,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=833, Unknown=0, NotChecked=0, Total=992 [2022-12-13 09:45:26,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:45:26,893 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:45:26,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 11.176470588235293) internal successors, (190), 17 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 09:45:26,893 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:45:26,893 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-12-13 09:45:26,893 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:45:26,893 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:45:27,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:45:27,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 09:45:27,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:45:27,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 09:45:27,118 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34747a93-48c4-4a47-9899-59988fc99c00/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 09:45:27,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34747a93-48c4-4a47-9899-59988fc99c00/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:45:27,315 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 09:45:27,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:45:27,317 INFO L85 PathProgramCache]: Analyzing trace with hash 2113200716, now seen corresponding path program 1 times [2022-12-13 09:45:27,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:45:27,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005267614] [2022-12-13 09:45:27,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:45:27,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:45:27,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:45:27,695 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 0 proven. 349 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:45:27,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:45:27,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005267614] [2022-12-13 09:45:27,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005267614] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 09:45:27,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [868932994] [2022-12-13 09:45:27,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:45:27,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:45:27,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34747a93-48c4-4a47-9899-59988fc99c00/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 09:45:27,697 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34747a93-48c4-4a47-9899-59988fc99c00/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 09:45:27,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34747a93-48c4-4a47-9899-59988fc99c00/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 09:45:27,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:45:27,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 09:45:27,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 09:45:27,987 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 327 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-13 09:45:27,988 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 09:45:27,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [868932994] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:45:27,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 09:45:27,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [17] total 28 [2022-12-13 09:45:27,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143150030] [2022-12-13 09:45:27,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:45:27,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 09:45:27,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:45:27,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 09:45:27,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=629, Unknown=0, NotChecked=0, Total=756 [2022-12-13 09:45:27,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:45:27,991 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:45:27,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.461538461538462) internal successors, (162), 13 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 09:45:27,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:45:27,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-12-13 09:45:27,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:45:27,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-12-13 09:45:27,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:45:28,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:45:28,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 09:45:28,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:45:28,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 09:45:28,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 09:45:28,183 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34747a93-48c4-4a47-9899-59988fc99c00/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 09:45:28,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34747a93-48c4-4a47-9899-59988fc99c00/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:45:28,379 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 09:45:28,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:45:28,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1710126318, now seen corresponding path program 1 times [2022-12-13 09:45:28,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:45:28,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656561799] [2022-12-13 09:45:28,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:45:28,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:45:28,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:45:28,655 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 264 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:45:28,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:45:28,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656561799] [2022-12-13 09:45:28,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656561799] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 09:45:28,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1702033785] [2022-12-13 09:45:28,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:45:28,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:45:28,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34747a93-48c4-4a47-9899-59988fc99c00/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 09:45:28,657 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34747a93-48c4-4a47-9899-59988fc99c00/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 09:45:28,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34747a93-48c4-4a47-9899-59988fc99c00/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 09:45:28,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:45:28,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 16 conjunts are in the unsatisfiable core [2022-12-13 09:45:28,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 09:45:28,867 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 264 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:45:28,867 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 09:45:29,083 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 264 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:45:29,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1702033785] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 09:45:29,084 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 09:45:29,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 27 [2022-12-13 09:45:29,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119249556] [2022-12-13 09:45:29,084 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 09:45:29,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-12-13 09:45:29,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:45:29,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-12-13 09:45:29,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=507, Unknown=0, NotChecked=0, Total=702 [2022-12-13 09:45:29,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:45:29,085 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:45:29,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 9.592592592592593) internal successors, (259), 27 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 09:45:29,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:45:29,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-12-13 09:45:29,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:45:29,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-12-13 09:45:29,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-12-13 09:45:29,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:45:29,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:45:29,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 09:45:29,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 09:45:29,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 09:45:29,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 09:45:29,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-12-13 09:45:29,371 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34747a93-48c4-4a47-9899-59988fc99c00/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 09:45:29,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34747a93-48c4-4a47-9899-59988fc99c00/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:45:29,568 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 09:45:29,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:45:29,569 INFO L85 PathProgramCache]: Analyzing trace with hash 2105575519, now seen corresponding path program 2 times [2022-12-13 09:45:29,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:45:29,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587341480] [2022-12-13 09:45:29,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:45:29,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:45:29,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 09:45:29,642 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 09:45:29,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 09:45:29,725 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 09:45:29,725 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 09:45:29,726 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-13 09:45:29,727 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-13 09:45:29,728 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-12-13 09:45:29,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 09:45:29,739 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1] [2022-12-13 09:45:29,744 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 09:45:29,744 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 09:45:29,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 09:45:29 BasicIcfg [2022-12-13 09:45:29,858 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 09:45:29,858 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 09:45:29,858 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 09:45:29,858 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 09:45:29,859 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:45:23" (3/4) ... [2022-12-13 09:45:29,860 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-13 09:45:29,954 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34747a93-48c4-4a47-9899-59988fc99c00/bin/ugemcutter-rbreBovr8w/witness.graphml [2022-12-13 09:45:29,954 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 09:45:29,955 INFO L158 Benchmark]: Toolchain (without parser) took 6988.68ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 112.7MB in the beginning and 61.6MB in the end (delta: 51.1MB). Peak memory consumption was 82.0MB. Max. memory is 16.1GB. [2022-12-13 09:45:29,955 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 146.8MB. Free memory was 89.7MB in the beginning and 89.6MB in the end (delta: 140.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 09:45:29,955 INFO L158 Benchmark]: CACSL2BoogieTranslator took 315.88ms. Allocated memory is still 146.8MB. Free memory was 112.4MB in the beginning and 92.3MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-12-13 09:45:29,956 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.84ms. Allocated memory is still 146.8MB. Free memory was 92.3MB in the beginning and 90.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 09:45:29,956 INFO L158 Benchmark]: Boogie Preprocessor took 18.71ms. Allocated memory is still 146.8MB. Free memory was 90.2MB in the beginning and 88.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 09:45:29,956 INFO L158 Benchmark]: RCFGBuilder took 332.90ms. Allocated memory is still 146.8MB. Free memory was 88.7MB in the beginning and 75.2MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 09:45:29,956 INFO L158 Benchmark]: TraceAbstraction took 6188.40ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 74.5MB in the beginning and 101.5MB in the end (delta: -26.9MB). Peak memory consumption was 67.3MB. Max. memory is 16.1GB. [2022-12-13 09:45:29,957 INFO L158 Benchmark]: Witness Printer took 96.05ms. Allocated memory is still 176.2MB. Free memory was 101.5MB in the beginning and 61.6MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2022-12-13 09:45:29,959 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 146.8MB. Free memory was 89.7MB in the beginning and 89.6MB in the end (delta: 140.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 315.88ms. Allocated memory is still 146.8MB. Free memory was 112.4MB in the beginning and 92.3MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.84ms. Allocated memory is still 146.8MB. Free memory was 92.3MB in the beginning and 90.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.71ms. Allocated memory is still 146.8MB. Free memory was 90.2MB in the beginning and 88.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 332.90ms. Allocated memory is still 146.8MB. Free memory was 88.7MB in the beginning and 75.2MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 6188.40ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 74.5MB in the beginning and 101.5MB in the end (delta: -26.9MB). Peak memory consumption was 67.3MB. Max. memory is 16.1GB. * Witness Printer took 96.05ms. Allocated memory is still 176.2MB. Free memory was 101.5MB in the beginning and 61.6MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 16560, independent: 12302, independent conditional: 10563, independent unconditional: 1739, dependent: 4258, dependent conditional: 4251, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12309, independent: 12302, independent conditional: 10563, independent unconditional: 1739, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 12309, independent: 12302, independent conditional: 10563, independent unconditional: 1739, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12309, independent: 12302, independent conditional: 0, independent unconditional: 12302, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 12309, independent: 12302, independent conditional: 0, independent unconditional: 12302, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 12309, independent: 12302, independent conditional: 0, independent unconditional: 12302, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1662, independent: 1655, independent conditional: 0, independent unconditional: 1655, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1662, independent: 1654, independent conditional: 0, independent unconditional: 1654, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 8, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 8, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 54, independent: 24, independent conditional: 0, independent unconditional: 24, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 12309, independent: 10647, independent conditional: 0, independent unconditional: 10647, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 1662, unknown conditional: 0, unknown unconditional: 1662] , Statistics on independence cache: Total cache size (in pairs): 1662, Positive cache size: 1655, Positive conditional cache size: 0, Positive unconditional cache size: 1655, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 4251 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.1s, Number of persistent set computation: 126, Number of trivial persistent sets: 70, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1746, independent: 1739, independent conditional: 0, independent unconditional: 1739, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 16560, independent: 12302, independent conditional: 10563, independent unconditional: 1739, dependent: 4258, dependent conditional: 4251, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12309, independent: 12302, independent conditional: 10563, independent unconditional: 1739, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 12309, independent: 12302, independent conditional: 10563, independent unconditional: 1739, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12309, independent: 12302, independent conditional: 0, independent unconditional: 12302, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 12309, independent: 12302, independent conditional: 0, independent unconditional: 12302, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 12309, independent: 12302, independent conditional: 0, independent unconditional: 12302, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1662, independent: 1655, independent conditional: 0, independent unconditional: 1655, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1662, independent: 1654, independent conditional: 0, independent unconditional: 1654, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 8, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 8, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 54, independent: 24, independent conditional: 0, independent unconditional: 24, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 12309, independent: 10647, independent conditional: 0, independent unconditional: 10647, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 1662, unknown conditional: 0, unknown unconditional: 1662] , Statistics on independence cache: Total cache size (in pairs): 1662, Positive cache size: 1655, Positive conditional cache size: 0, Positive unconditional cache size: 1655, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 4251 - CounterExampleResult [Line: 681]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L682] 0 int i, j; VAL [i=0, j=0] [L685] 0 int p, q; VAL [i=0, j=0, p=0, q=0] [L702] 0 int cur = 1, prev = 0, next = 0; VAL [cur=1, i=0, j=0, next=0, p=0, prev=0, q=0] [L703] 0 int x; VAL [cur=1, i=0, j=0, next=0, p=0, prev=0, q=0, x=0] [L713] 0 pthread_t id1, id2; VAL [\old(argc)=236, argc=236, argv={235:234}, argv={235:234}, cur=1, i=0, id1={5:0}, id2={3:0}, j=0, next=0, p=0, prev=0, q=0, x=0] [L715] 0 i = 1 VAL [\old(argc)=236, argc=236, argv={235:234}, argv={235:234}, cur=1, i=1, id1={5:0}, id2={3:0}, j=0, next=0, p=0, prev=0, q=0, x=0] [L718] 0 j = 1 VAL [\old(argc)=236, argc=236, argv={235:234}, argv={235:234}, cur=1, i=1, id1={5:0}, id2={3:0}, j=1, next=0, p=0, prev=0, q=0, x=0] [L720] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [\old(argc)=236, arg={0:0}, argc=236, argv={235:234}, argv={235:234}, cur=1, i=1, id1={5:0}, id2={3:0}, j=1, next=0, p=0, prev=0, pthread_create(&id1, ((void *)0), t1, ((void *)0))=-1, q=0, x=0] [L687] 1 p = 0 VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=0, p=0, prev=0, q=0, x=0] [L721] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [\old(argc)=236, arg={0:0}, arg={0:0}, arg={0:0}, argc=236, argv={235:234}, argv={235:234}, cur=1, i=1, id1={5:0}, id2={3:0}, j=1, next=0, p=0, prev=0, pthread_create(&id2, ((void *)0), t2, ((void *)0))=0, q=0, x=0] [L695] 2 q = 0 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=0, p=0, prev=0, q=0, x=0] [L722] CALL, EXPR 0 fib() [L705] 0 x = 0 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=0, p=0, prev=0, q=0, x=0] [L687] COND TRUE 1 p < 5 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=0, p=0, prev=0, q=0, x=0] [L689] 1 i = i + j VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=1, i=2, j=1, next=0, p=0, prev=0, q=0, x=0] [L687] 1 p++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=1, i=2, j=1, next=0, p=1, prev=0, q=0, x=0] [L695] COND TRUE 2 q < 5 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=1, i=2, j=1, next=0, p=1, prev=0, q=0, x=0] [L697] 2 j = j + i VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=1, i=2, j=3, next=0, p=1, prev=0, q=0, x=0] [L695] 2 q++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=1, i=2, j=3, next=0, p=1, prev=0, q=1, x=0] [L705] COND TRUE 0 x < 12 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=1, i=2, j=3, next=0, p=1, prev=0, q=1, x=0] [L706] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=1, i=2, j=3, next=1, p=1, prev=0, q=1, x=0] [L707] 0 prev = cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=1, i=2, j=3, next=1, p=1, prev=1, q=1, x=0] [L708] 0 cur = next VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=1, i=2, j=3, next=1, p=1, prev=1, q=1, x=0] [L705] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=1, i=2, j=3, next=1, p=1, prev=1, q=1, x=1] [L687] COND TRUE 1 p < 5 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=1, i=2, j=3, next=1, p=1, prev=1, q=1, x=1] [L689] 1 i = i + j VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=1, i=5, j=3, next=1, p=1, prev=1, q=1, x=1] [L687] 1 p++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=1, i=5, j=3, next=1, p=2, prev=1, q=1, x=1] [L695] COND TRUE 2 q < 5 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=1, i=5, j=3, next=1, p=2, prev=1, q=1, x=1] [L697] 2 j = j + i VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=1, i=5, j=8, next=1, p=2, prev=1, q=1, x=1] [L695] 2 q++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=1, i=5, j=8, next=1, p=2, prev=1, q=2, x=1] [L705] COND TRUE 0 x < 12 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=1, i=5, j=8, next=1, p=2, prev=1, q=2, x=1] [L706] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=1, i=5, j=8, next=2, p=2, prev=1, q=2, x=1] [L707] 0 prev = cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=1, i=5, j=8, next=2, p=2, prev=1, q=2, x=1] [L708] 0 cur = next VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=2, i=5, j=8, next=2, p=2, prev=1, q=2, x=1] [L705] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=2, i=5, j=8, next=2, p=2, prev=1, q=2, x=2] [L687] COND TRUE 1 p < 5 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=2, i=5, j=8, next=2, p=2, prev=1, q=2, x=2] [L689] 1 i = i + j VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=2, i=13, j=8, next=2, p=2, prev=1, q=2, x=2] [L687] 1 p++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=2, i=13, j=8, next=2, p=3, prev=1, q=2, x=2] [L695] COND TRUE 2 q < 5 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=2, i=13, j=8, next=2, p=3, prev=1, q=2, x=2] [L697] 2 j = j + i VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=2, i=13, j=21, next=2, p=3, prev=1, q=2, x=2] [L695] 2 q++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=2, i=13, j=21, next=2, p=3, prev=1, q=3, x=2] [L705] COND TRUE 0 x < 12 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=2, i=13, j=21, next=2, p=3, prev=1, q=3, x=2] [L706] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=2, i=13, j=21, next=3, p=3, prev=1, q=3, x=2] [L707] 0 prev = cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=2, i=13, j=21, next=3, p=3, prev=2, q=3, x=2] [L708] 0 cur = next VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=3, i=13, j=21, next=3, p=3, prev=2, q=3, x=2] [L705] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=3, i=13, j=21, next=3, p=3, prev=2, q=3, x=3] [L687] COND TRUE 1 p < 5 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=3, i=13, j=21, next=3, p=3, prev=2, q=3, x=3] [L689] 1 i = i + j VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=3, i=34, j=21, next=3, p=3, prev=2, q=3, x=3] [L687] 1 p++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=3, i=34, j=21, next=3, p=4, prev=2, q=3, x=3] [L695] COND TRUE 2 q < 5 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=3, i=34, j=21, next=3, p=4, prev=2, q=3, x=3] [L697] 2 j = j + i VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=3, i=34, j=55, next=3, p=4, prev=2, q=3, x=3] [L695] 2 q++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=3, i=34, j=55, next=3, p=4, prev=2, q=4, x=3] [L705] COND TRUE 0 x < 12 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=3, i=34, j=55, next=3, p=4, prev=2, q=4, x=3] [L706] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=3, i=34, j=55, next=5, p=4, prev=2, q=4, x=3] [L707] 0 prev = cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=3, i=34, j=55, next=5, p=4, prev=3, q=4, x=3] [L708] 0 cur = next VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=5, i=34, j=55, next=5, p=4, prev=3, q=4, x=3] [L705] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=5, i=34, j=55, next=5, p=4, prev=3, q=4, x=4] [L687] COND TRUE 1 p < 5 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=5, i=34, j=55, next=5, p=4, prev=3, q=4, x=4] [L689] 1 i = i + j VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=5, i=89, j=55, next=5, p=4, prev=3, q=4, x=4] [L687] 1 p++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=5, i=89, j=55, next=5, p=5, prev=3, q=4, x=4] [L695] COND TRUE 2 q < 5 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=5, i=89, j=55, next=5, p=5, prev=3, q=4, x=4] [L697] 2 j = j + i VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=5, i=89, j=144, next=5, p=5, prev=3, q=4, x=4] [L695] 2 q++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=5, i=89, j=144, next=5, p=5, prev=3, q=5, x=4] [L705] COND TRUE 0 x < 12 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=5, i=89, j=144, next=5, p=5, prev=3, q=5, x=4] [L706] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=5, i=89, j=144, next=8, p=5, prev=3, q=5, x=4] [L707] 0 prev = cur VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=5, i=89, j=144, next=8, p=5, prev=5, q=5, x=4] [L708] 0 cur = next VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=8, i=89, j=144, next=8, p=5, prev=5, q=5, x=4] [L705] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=8, i=89, j=144, next=8, p=5, prev=5, q=5, x=5] [L687] COND FALSE 1 !(p < 5) VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=8, i=89, j=144, next=8, p=5, prev=5, q=5, x=5] [L692] 1 return ((void *)0); VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=8, i=89, j=144, next=8, p=5, prev=5, q=5, x=5] [L695] COND FALSE 2 !(q < 5) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=8, i=89, j=144, next=8, p=5, prev=5, q=5, x=5] [L700] 2 return ((void *)0); VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=8, i=89, j=144, next=8, p=5, prev=5, q=5, x=5] [L705] COND TRUE 0 x < 12 VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=8, i=89, j=144, next=8, p=5, prev=5, q=5, x=5] [L706] 0 next = prev + cur VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=8, i=89, j=144, next=13, p=5, prev=5, q=5, x=5] [L707] 0 prev = cur VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=8, i=89, j=144, next=13, p=5, prev=8, q=5, x=5] [L708] 0 cur = next VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=13, i=89, j=144, next=13, p=5, prev=8, q=5, x=5] [L705] 0 x++ VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=13, i=89, j=144, next=13, p=5, prev=8, q=5, x=6] [L705] COND TRUE 0 x < 12 VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=13, i=89, j=144, next=13, p=5, prev=8, q=5, x=6] [L706] 0 next = prev + cur VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=13, i=89, j=144, next=21, p=5, prev=8, q=5, x=6] [L707] 0 prev = cur VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=13, i=89, j=144, next=21, p=5, prev=13, q=5, x=6] [L708] 0 cur = next VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=21, i=89, j=144, next=21, p=5, prev=13, q=5, x=6] [L705] 0 x++ VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=21, i=89, j=144, next=21, p=5, prev=13, q=5, x=7] [L705] COND TRUE 0 x < 12 VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=21, i=89, j=144, next=21, p=5, prev=13, q=5, x=7] [L706] 0 next = prev + cur VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=21, i=89, j=144, next=34, p=5, prev=13, q=5, x=7] [L707] 0 prev = cur VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=21, i=89, j=144, next=34, p=5, prev=21, q=5, x=7] [L708] 0 cur = next VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=34, i=89, j=144, next=34, p=5, prev=21, q=5, x=7] [L705] 0 x++ VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=34, i=89, j=144, next=34, p=5, prev=21, q=5, x=8] [L705] COND TRUE 0 x < 12 VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=34, i=89, j=144, next=34, p=5, prev=21, q=5, x=8] [L706] 0 next = prev + cur VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=34, i=89, j=144, next=55, p=5, prev=21, q=5, x=8] [L707] 0 prev = cur VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=34, i=89, j=144, next=55, p=5, prev=34, q=5, x=8] [L708] 0 cur = next VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=55, i=89, j=144, next=55, p=5, prev=34, q=5, x=8] [L705] 0 x++ VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=55, i=89, j=144, next=55, p=5, prev=34, q=5, x=9] [L705] COND TRUE 0 x < 12 VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=55, i=89, j=144, next=55, p=5, prev=34, q=5, x=9] [L706] 0 next = prev + cur VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=55, i=89, j=144, next=89, p=5, prev=34, q=5, x=9] [L707] 0 prev = cur VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=55, i=89, j=144, next=89, p=5, prev=55, q=5, x=9] [L708] 0 cur = next VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=89, i=89, j=144, next=89, p=5, prev=55, q=5, x=9] [L705] 0 x++ VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=89, i=89, j=144, next=89, p=5, prev=55, q=5, x=10] [L705] COND TRUE 0 x < 12 VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=89, i=89, j=144, next=89, p=5, prev=55, q=5, x=10] [L706] 0 next = prev + cur VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=89, i=89, j=144, next=144, p=5, prev=55, q=5, x=10] [L707] 0 prev = cur VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=89, i=89, j=144, next=144, p=5, prev=89, q=5, x=10] [L708] 0 cur = next VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=144, i=89, j=144, next=144, p=5, prev=89, q=5, x=10] [L705] 0 x++ VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=144, i=89, j=144, next=144, p=5, prev=89, q=5, x=11] [L705] COND TRUE 0 x < 12 VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=144, i=89, j=144, next=144, p=5, prev=89, q=5, x=11] [L706] 0 next = prev + cur VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=144, i=89, j=144, next=233, p=5, prev=89, q=5, x=11] [L707] 0 prev = cur VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=144, i=89, j=144, next=233, p=5, prev=144, q=5, x=11] [L708] 0 cur = next VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=233, i=89, j=144, next=233, p=5, prev=144, q=5, x=11] [L705] 0 x++ VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=233, i=89, j=144, next=233, p=5, prev=144, q=5, x=12] [L705] COND FALSE 0 !(x < 12) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=233, i=89, j=144, next=233, p=5, prev=144, q=5, x=12] [L710] 0 return prev; VAL [\result={0:0}, \result=144, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=233, i=89, j=144, next=233, p=5, prev=144, q=5, x=12] [L722] RET, EXPR 0 fib() [L722] 0 int correct = fib(); VAL [\old(argc)=236, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, argc=236, argv={235:234}, argv={235:234}, correct=144, cur=233, fib()=144, i=89, id1={5:0}, id2={3:0}, j=144, next=233, p=5, prev=144, q=5, x=12] [L724] 0 _Bool assert_cond = i < correct && j < correct; VAL [\old(argc)=236, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, argc=236, argv={235:234}, argv={235:234}, assert_cond=0, correct=144, cur=233, i=89, id1={5:0}, id2={3:0}, j=144, next=233, p=5, prev=144, q=5, x=12] [L726] CALL 0 __VERIFIER_assert(assert_cond) [L681] COND TRUE 0 !expression VAL [\old(expression)=0, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=233, expression=0, i=89, j=144, next=233, p=5, prev=144, q=5, x=12] [L681] 0 reach_error() VAL [\old(expression)=0, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=233, expression=0, i=89, j=144, next=233, p=5, prev=144, q=5, x=12] - UnprovableResult [Line: 720]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 721]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 117 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 5.9s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 3, EmptinessCheckTime: 1.2s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 105, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 1760 NumberOfCodeBlocks, 1760 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 1921 ConstructedInterpolants, 0 QuantifiedInterpolants, 4073 SizeOfPredicates, 46 NumberOfNonLiveVariables, 1521 ConjunctsInSsa, 56 ConjunctsInUnsatCore, 14 InterpolantComputations, 3 PerfectInterpolantSequences, 783/2643 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-13 09:45:29,973 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34747a93-48c4-4a47-9899-59988fc99c00/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2022-12-13 09:45:30,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34747a93-48c4-4a47-9899-59988fc99c00/bin/ugemcutter-rbreBovr8w/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE