./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/fib_unsafe-11.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b0c56a-bf29-47a8-81f0-355f60e61c86/bin/ugemcutter-verify-oI9GxRtH0S/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b0c56a-bf29-47a8-81f0-355f60e61c86/bin/ugemcutter-verify-oI9GxRtH0S/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b0c56a-bf29-47a8-81f0-355f60e61c86/bin/ugemcutter-verify-oI9GxRtH0S/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b0c56a-bf29-47a8-81f0-355f60e61c86/bin/ugemcutter-verify-oI9GxRtH0S/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread/fib_unsafe-11.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b0c56a-bf29-47a8-81f0-355f60e61c86/bin/ugemcutter-verify-oI9GxRtH0S/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b0c56a-bf29-47a8-81f0-355f60e61c86/bin/ugemcutter-verify-oI9GxRtH0S --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5b16c68af06359cf155927d2335a825cd179e6a83a999e1ead7a6952268e92c6 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:07:20,111 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:07:20,185 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b0c56a-bf29-47a8-81f0-355f60e61c86/bin/ugemcutter-verify-oI9GxRtH0S/config/svcomp-Reach-32bit-GemCutter_Default.epf [2023-11-24 22:07:20,190 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:07:20,190 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 22:07:20,216 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:07:20,217 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 22:07:20,218 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 22:07:20,219 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:07:20,219 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 22:07:20,220 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:07:20,221 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:07:20,221 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 22:07:20,222 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:07:20,223 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:07:20,223 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:07:20,224 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:07:20,224 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:07:20,225 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:07:20,226 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:07:20,226 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:07:20,227 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:07:20,227 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:07:20,228 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:07:20,228 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:07:20,229 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:07:20,229 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 22:07:20,230 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 22:07:20,230 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 22:07:20,231 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 22:07:20,231 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:07:20,232 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:07:20,232 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:07:20,232 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-24 22:07:20,233 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2023-11-24 22:07:20,233 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:07:20,233 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 22:07:20,234 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-24 22:07:20,234 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:07:20,234 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-24 22:07:20,234 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-24 22:07:20,235 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b0c56a-bf29-47a8-81f0-355f60e61c86/bin/ugemcutter-verify-oI9GxRtH0S/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b0c56a-bf29-47a8-81f0-355f60e61c86/bin/ugemcutter-verify-oI9GxRtH0S Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b16c68af06359cf155927d2335a825cd179e6a83a999e1ead7a6952268e92c6 [2023-11-24 22:07:20,489 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:07:20,524 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:07:20,527 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:07:20,528 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:07:20,529 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:07:20,530 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b0c56a-bf29-47a8-81f0-355f60e61c86/bin/ugemcutter-verify-oI9GxRtH0S/../../sv-benchmarks/c/pthread/fib_unsafe-11.i [2023-11-24 22:07:23,765 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:07:24,072 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:07:24,073 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b0c56a-bf29-47a8-81f0-355f60e61c86/sv-benchmarks/c/pthread/fib_unsafe-11.i [2023-11-24 22:07:24,093 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b0c56a-bf29-47a8-81f0-355f60e61c86/bin/ugemcutter-verify-oI9GxRtH0S/data/24ba5cf86/56b16242f51f4484be455896f8534ed6/FLAG5894ece38 [2023-11-24 22:07:24,109 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b0c56a-bf29-47a8-81f0-355f60e61c86/bin/ugemcutter-verify-oI9GxRtH0S/data/24ba5cf86/56b16242f51f4484be455896f8534ed6 [2023-11-24 22:07:24,112 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:07:24,114 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:07:24,116 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:07:24,116 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:07:24,122 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:07:24,123 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:07:24" (1/1) ... [2023-11-24 22:07:24,124 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51d2ee7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:24, skipping insertion in model container [2023-11-24 22:07:24,125 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:07:24" (1/1) ... [2023-11-24 22:07:24,225 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:07:24,584 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b0c56a-bf29-47a8-81f0-355f60e61c86/sv-benchmarks/c/pthread/fib_unsafe-11.i[30243,30256] [2023-11-24 22:07:24,615 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:07:24,629 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:07:24,687 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b0c56a-bf29-47a8-81f0-355f60e61c86/sv-benchmarks/c/pthread/fib_unsafe-11.i[30243,30256] [2023-11-24 22:07:24,702 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:07:24,737 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:07:24,738 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:07:24,746 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:07:24,747 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:24 WrapperNode [2023-11-24 22:07:24,747 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:07:24,748 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:07:24,748 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:07:24,749 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:07:24,757 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:24" (1/1) ... [2023-11-24 22:07:24,784 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:24" (1/1) ... [2023-11-24 22:07:24,816 INFO L138 Inliner]: procedures = 165, calls = 28, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 74 [2023-11-24 22:07:24,816 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:07:24,817 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:07:24,817 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:07:24,817 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:07:24,827 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:24" (1/1) ... [2023-11-24 22:07:24,828 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:24" (1/1) ... [2023-11-24 22:07:24,831 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:24" (1/1) ... [2023-11-24 22:07:24,831 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:24" (1/1) ... [2023-11-24 22:07:24,837 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:24" (1/1) ... [2023-11-24 22:07:24,841 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:24" (1/1) ... [2023-11-24 22:07:24,843 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:24" (1/1) ... [2023-11-24 22:07:24,844 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:24" (1/1) ... [2023-11-24 22:07:24,847 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:07:24,848 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:07:24,849 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:07:24,849 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:07:24,850 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:24" (1/1) ... [2023-11-24 22:07:24,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 22:07:24,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b0c56a-bf29-47a8-81f0-355f60e61c86/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:07:24,904 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b0c56a-bf29-47a8-81f0-355f60e61c86/bin/ugemcutter-verify-oI9GxRtH0S/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 22:07:24,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b0c56a-bf29-47a8-81f0-355f60e61c86/bin/ugemcutter-verify-oI9GxRtH0S/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 22:07:24,937 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2023-11-24 22:07:24,937 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2023-11-24 22:07:24,937 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2023-11-24 22:07:24,938 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2023-11-24 22:07:24,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 22:07:24,938 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-24 22:07:24,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:07:24,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 22:07:24,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 22:07:24,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 22:07:24,938 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-24 22:07:24,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:07:24,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:07:24,941 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-24 22:07:25,092 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:07:25,096 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:07:25,274 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:07:25,451 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:07:25,451 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-24 22:07:25,452 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:07:25 BoogieIcfgContainer [2023-11-24 22:07:25,452 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:07:25,457 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 22:07:25,457 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 22:07:25,461 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 22:07:25,461 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 10:07:24" (1/3) ... [2023-11-24 22:07:25,462 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f096cc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 10:07:25, skipping insertion in model container [2023-11-24 22:07:25,463 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:24" (2/3) ... [2023-11-24 22:07:25,463 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f096cc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 10:07:25, skipping insertion in model container [2023-11-24 22:07:25,464 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:07:25" (3/3) ... [2023-11-24 22:07:25,465 INFO L112 eAbstractionObserver]: Analyzing ICFG fib_unsafe-11.i [2023-11-24 22:07:25,475 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-24 22:07:25,486 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 22:07:25,486 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 22:07:25,486 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-24 22:07:25,541 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-24 22:07:25,595 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 22:07:25,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-24 22:07:25,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b0c56a-bf29-47a8-81f0-355f60e61c86/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:07:25,603 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b0c56a-bf29-47a8-81f0-355f60e61c86/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-24 22:07:25,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b0c56a-bf29-47a8-81f0-355f60e61c86/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-11-24 22:07:25,649 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-24 22:07:25,664 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-11-24 22:07:25,671 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2b3bfe0a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 22:07:25,671 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-24 22:07:25,864 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-24 22:07:25,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:07:25,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1154782991, now seen corresponding path program 1 times [2023-11-24 22:07:25,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:07:25,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413956515] [2023-11-24 22:07:25,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:07:25,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:07:26,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:07:26,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:07:26,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:07:26,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413956515] [2023-11-24 22:07:26,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413956515] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:07:26,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:07:26,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 22:07:26,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239313515] [2023-11-24 22:07:26,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:07:26,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 22:07:26,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:07:26,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 22:07:26,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 22:07:26,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:07:26,347 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:07:26,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:07:26,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:07:26,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:07:26,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 22:07:26,428 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-24 22:07:26,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:07:26,429 INFO L85 PathProgramCache]: Analyzing trace with hash 448548510, now seen corresponding path program 1 times [2023-11-24 22:07:26,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:07:26,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367033868] [2023-11-24 22:07:26,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:07:26,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:07:26,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:07:26,662 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:07:26,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:07:26,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367033868] [2023-11-24 22:07:26,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367033868] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:07:26,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1083714849] [2023-11-24 22:07:26,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:07:26,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:07:26,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b0c56a-bf29-47a8-81f0-355f60e61c86/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:07:26,703 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b0c56a-bf29-47a8-81f0-355f60e61c86/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:07:26,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b0c56a-bf29-47a8-81f0-355f60e61c86/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-24 22:07:26,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:07:26,859 INFO L262 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 22:07:26,864 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:07:26,976 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:07:26,976 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 22:07:27,018 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:07:27,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1083714849] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 22:07:27,018 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 22:07:27,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-11-24 22:07:27,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376304501] [2023-11-24 22:07:27,020 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 22:07:27,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-24 22:07:27,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:07:27,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-24 22:07:27,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-24 22:07:27,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:07:27,023 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:07:27,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:07:27,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:07:27,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:07:27,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:07:27,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:07:27,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b0c56a-bf29-47a8-81f0-355f60e61c86/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-24 22:07:27,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b0c56a-bf29-47a8-81f0-355f60e61c86/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:07:27,335 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-24 22:07:27,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:07:27,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1903132337, now seen corresponding path program 2 times [2023-11-24 22:07:27,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:07:27,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237823481] [2023-11-24 22:07:27,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:07:27,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:07:27,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:07:27,552 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:07:27,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:07:27,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237823481] [2023-11-24 22:07:27,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237823481] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:07:27,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1240271504] [2023-11-24 22:07:27,553 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-24 22:07:27,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:07:27,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b0c56a-bf29-47a8-81f0-355f60e61c86/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:07:27,555 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b0c56a-bf29-47a8-81f0-355f60e61c86/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:07:27,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b0c56a-bf29-47a8-81f0-355f60e61c86/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-24 22:07:27,690 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-24 22:07:27,691 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-24 22:07:27,693 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-24 22:07:27,696 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:07:27,872 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:07:27,872 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 22:07:28,002 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:07:28,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1240271504] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 22:07:28,003 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 22:07:28,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2023-11-24 22:07:28,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691323876] [2023-11-24 22:07:28,004 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 22:07:28,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-24 22:07:28,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:07:28,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-24 22:07:28,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-11-24 22:07:28,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:07:28,008 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:07:28,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.153846153846154) internal successors, (93), 13 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:07:28,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:07:28,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:07:28,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:07:28,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:07:28,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:07:28,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-24 22:07:28,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b0c56a-bf29-47a8-81f0-355f60e61c86/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-24 22:07:28,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b0c56a-bf29-47a8-81f0-355f60e61c86/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:07:28,413 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-24 22:07:28,414 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:07:28,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1557716143, now seen corresponding path program 3 times [2023-11-24 22:07:28,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:07:28,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146795381] [2023-11-24 22:07:28,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:07:28,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:07:28,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:07:29,036 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 0 proven. 385 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:07:29,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:07:29,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146795381] [2023-11-24 22:07:29,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146795381] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:07:29,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [441690080] [2023-11-24 22:07:29,037 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-24 22:07:29,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:07:29,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b0c56a-bf29-47a8-81f0-355f60e61c86/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:07:29,039 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b0c56a-bf29-47a8-81f0-355f60e61c86/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:07:29,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b0c56a-bf29-47a8-81f0-355f60e61c86/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-24 22:07:29,213 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-11-24 22:07:29,213 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-24 22:07:29,216 INFO L262 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-24 22:07:29,220 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:07:29,396 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 0 proven. 385 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:07:29,397 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 22:07:29,775 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 0 proven. 385 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:07:29,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [441690080] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 22:07:29,775 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 22:07:29,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2023-11-24 22:07:29,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284569511] [2023-11-24 22:07:29,776 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 22:07:29,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-11-24 22:07:29,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:07:29,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-11-24 22:07:29,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2023-11-24 22:07:29,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:07:29,784 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:07:29,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 7.08) internal successors, (177), 25 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:07:29,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:07:29,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:07:29,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-11-24 22:07:29,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:07:30,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:07:30,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:07:30,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-24 22:07:30,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-24 22:07:30,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b0c56a-bf29-47a8-81f0-355f60e61c86/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-24 22:07:30,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b0c56a-bf29-47a8-81f0-355f60e61c86/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-11-24 22:07:30,289 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-24 22:07:30,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:07:30,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1444484241, now seen corresponding path program 4 times [2023-11-24 22:07:30,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:07:30,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67957346] [2023-11-24 22:07:30,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:07:30,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:07:30,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:07:31,437 INFO L134 CoverageAnalysis]: Checked inductivity of 1771 backedges. 0 proven. 1771 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:07:31,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:07:31,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67957346] [2023-11-24 22:07:31,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67957346] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:07:31,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1495388927] [2023-11-24 22:07:31,438 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-24 22:07:31,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:07:31,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b0c56a-bf29-47a8-81f0-355f60e61c86/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:07:31,440 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b0c56a-bf29-47a8-81f0-355f60e61c86/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:07:31,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b0c56a-bf29-47a8-81f0-355f60e61c86/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-24 22:07:31,626 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-24 22:07:31,626 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-24 22:07:31,629 INFO L262 TraceCheckSpWp]: Trace formula consists of 559 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-24 22:07:31,643 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:07:32,020 INFO L134 CoverageAnalysis]: Checked inductivity of 1771 backedges. 1320 proven. 0 refuted. 0 times theorem prover too weak. 451 trivial. 0 not checked. [2023-11-24 22:07:32,021 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 22:07:32,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1495388927] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:07:32,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-24 22:07:32,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [25] total 37 [2023-11-24 22:07:32,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707251736] [2023-11-24 22:07:32,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:07:32,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-24 22:07:32,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:07:32,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-24 22:07:32,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=390, Invalid=942, Unknown=0, NotChecked=0, Total=1332 [2023-11-24 22:07:32,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:07:32,030 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:07:32,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.142857142857143) internal successors, (100), 14 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:07:32,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:07:32,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:07:32,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-11-24 22:07:32,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2023-11-24 22:07:32,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:07:32,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:07:32,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:07:32,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-24 22:07:32,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-24 22:07:32,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-24 22:07:32,295 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b0c56a-bf29-47a8-81f0-355f60e61c86/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-24 22:07:32,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b0c56a-bf29-47a8-81f0-355f60e61c86/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:07:32,492 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-24 22:07:32,492 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:07:32,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1626802939, now seen corresponding path program 1 times [2023-11-24 22:07:32,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:07:32,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321760092] [2023-11-24 22:07:32,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:07:32,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:07:32,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:07:33,411 INFO L134 CoverageAnalysis]: Checked inductivity of 1188 backedges. 0 proven. 1188 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:07:33,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:07:33,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321760092] [2023-11-24 22:07:33,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321760092] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:07:33,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [913263325] [2023-11-24 22:07:33,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:07:33,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:07:33,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b0c56a-bf29-47a8-81f0-355f60e61c86/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:07:33,417 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b0c56a-bf29-47a8-81f0-355f60e61c86/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:07:33,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b0c56a-bf29-47a8-81f0-355f60e61c86/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-24 22:07:33,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:07:33,580 INFO L262 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-24 22:07:33,591 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:07:33,971 INFO L134 CoverageAnalysis]: Checked inductivity of 1188 backedges. 935 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2023-11-24 22:07:33,971 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 22:07:33,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [913263325] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:07:33,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-24 22:07:33,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [25] total 37 [2023-11-24 22:07:33,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880393417] [2023-11-24 22:07:33,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:07:33,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-24 22:07:33,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:07:33,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-24 22:07:33,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=390, Invalid=942, Unknown=0, NotChecked=0, Total=1332 [2023-11-24 22:07:33,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:07:33,974 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:07:33,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.0) internal successors, (98), 14 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:07:33,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:07:33,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:07:33,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-11-24 22:07:33,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2023-11-24 22:07:33,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-11-24 22:07:33,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:07:34,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:07:34,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:07:34,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-24 22:07:34,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-24 22:07:34,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-24 22:07:34,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-24 22:07:34,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b0c56a-bf29-47a8-81f0-355f60e61c86/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-24 22:07:34,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b0c56a-bf29-47a8-81f0-355f60e61c86/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-24 22:07:34,431 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-24 22:07:34,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:07:34,432 INFO L85 PathProgramCache]: Analyzing trace with hash 457415924, now seen corresponding path program 1 times [2023-11-24 22:07:34,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:07:34,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657323539] [2023-11-24 22:07:34,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:07:34,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:07:34,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:07:35,178 INFO L134 CoverageAnalysis]: Checked inductivity of 605 backedges. 0 proven. 605 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:07:35,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:07:35,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657323539] [2023-11-24 22:07:35,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657323539] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:07:35,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [510883356] [2023-11-24 22:07:35,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:07:35,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:07:35,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b0c56a-bf29-47a8-81f0-355f60e61c86/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:07:35,181 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b0c56a-bf29-47a8-81f0-355f60e61c86/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:07:35,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b0c56a-bf29-47a8-81f0-355f60e61c86/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-24 22:07:35,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:07:35,349 INFO L262 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-24 22:07:35,353 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:07:35,506 INFO L134 CoverageAnalysis]: Checked inductivity of 605 backedges. 0 proven. 605 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:07:35,506 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 22:07:35,979 INFO L134 CoverageAnalysis]: Checked inductivity of 605 backedges. 0 proven. 605 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:07:35,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [510883356] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 22:07:35,979 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 22:07:35,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 27 [2023-11-24 22:07:35,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796903514] [2023-11-24 22:07:35,980 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 22:07:35,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-11-24 22:07:35,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:07:35,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-11-24 22:07:35,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2023-11-24 22:07:35,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:07:35,983 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:07:35,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 4.592592592592593) internal successors, (124), 27 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:07:35,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:07:35,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:07:35,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-11-24 22:07:35,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2023-11-24 22:07:35,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-11-24 22:07:35,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-11-24 22:07:35,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:07:36,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:07:36,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:07:36,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-24 22:07:36,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-24 22:07:36,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-24 22:07:36,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-24 22:07:36,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-24 22:07:36,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b0c56a-bf29-47a8-81f0-355f60e61c86/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-24 22:07:36,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b0c56a-bf29-47a8-81f0-355f60e61c86/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:07:36,340 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-24 22:07:36,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:07:36,341 INFO L85 PathProgramCache]: Analyzing trace with hash 676784692, now seen corresponding path program 2 times [2023-11-24 22:07:36,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:07:36,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371496132] [2023-11-24 22:07:36,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:07:36,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:07:36,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:07:36,411 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 22:07:36,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:07:36,563 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-24 22:07:36,563 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-24 22:07:36,564 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-11-24 22:07:36,567 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-11-24 22:07:36,567 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-11-24 22:07:36,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-24 22:07:36,575 INFO L445 BasicCegarLoop]: Path program histogram: [4, 2, 1, 1] [2023-11-24 22:07:36,581 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-24 22:07:36,581 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-24 22:07:36,691 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre4 could not be translated [2023-11-24 22:07:36,694 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre6 could not be translated [2023-11-24 22:07:36,778 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 10:07:36 BasicIcfg [2023-11-24 22:07:36,778 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-24 22:07:36,778 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 22:07:36,778 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 22:07:36,779 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 22:07:36,779 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:07:25" (3/4) ... [2023-11-24 22:07:36,780 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-24 22:07:36,831 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre4 could not be translated [2023-11-24 22:07:36,834 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre6 could not be translated [2023-11-24 22:07:36,972 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b0c56a-bf29-47a8-81f0-355f60e61c86/bin/ugemcutter-verify-oI9GxRtH0S/witness.graphml [2023-11-24 22:07:36,973 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 22:07:36,973 INFO L158 Benchmark]: Toolchain (without parser) took 12859.44ms. Allocated memory was 146.8MB in the beginning and 232.8MB in the end (delta: 86.0MB). Free memory was 102.3MB in the beginning and 199.8MB in the end (delta: -97.5MB). Peak memory consumption was 123.8MB. Max. memory is 16.1GB. [2023-11-24 22:07:36,974 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 102.8MB. Free memory is still 53.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:07:36,974 INFO L158 Benchmark]: CACSL2BoogieTranslator took 631.75ms. Allocated memory is still 146.8MB. Free memory was 102.3MB in the beginning and 82.5MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-24 22:07:36,974 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.07ms. Allocated memory is still 146.8MB. Free memory was 82.5MB in the beginning and 80.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:07:36,975 INFO L158 Benchmark]: Boogie Preprocessor took 30.91ms. Allocated memory is still 146.8MB. Free memory was 80.4MB in the beginning and 78.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:07:36,975 INFO L158 Benchmark]: RCFGBuilder took 604.05ms. Allocated memory is still 146.8MB. Free memory was 78.8MB in the beginning and 96.6MB in the end (delta: -17.7MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. [2023-11-24 22:07:36,975 INFO L158 Benchmark]: TraceAbstraction took 11320.96ms. Allocated memory was 146.8MB in the beginning and 232.8MB in the end (delta: 86.0MB). Free memory was 95.9MB in the beginning and 91.2MB in the end (delta: 4.7MB). Peak memory consumption was 90.3MB. Max. memory is 16.1GB. [2023-11-24 22:07:36,976 INFO L158 Benchmark]: Witness Printer took 194.47ms. Allocated memory is still 232.8MB. Free memory was 91.2MB in the beginning and 199.8MB in the end (delta: -108.6MB). Peak memory consumption was 24.6MB. Max. memory is 16.1GB. [2023-11-24 22:07:36,978 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 102.8MB. Free memory is still 53.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 631.75ms. Allocated memory is still 146.8MB. Free memory was 102.3MB in the beginning and 82.5MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.07ms. Allocated memory is still 146.8MB. Free memory was 82.5MB in the beginning and 80.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.91ms. Allocated memory is still 146.8MB. Free memory was 80.4MB in the beginning and 78.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 604.05ms. Allocated memory is still 146.8MB. Free memory was 78.8MB in the beginning and 96.6MB in the end (delta: -17.7MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. * TraceAbstraction took 11320.96ms. Allocated memory was 146.8MB in the beginning and 232.8MB in the end (delta: 86.0MB). Free memory was 95.9MB in the beginning and 91.2MB in the end (delta: 4.7MB). Peak memory consumption was 90.3MB. Max. memory is 16.1GB. * Witness Printer took 194.47ms. Allocated memory is still 232.8MB. Free memory was 91.2MB in the beginning and 199.8MB in the end (delta: -108.6MB). Peak memory consumption was 24.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre6 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre6 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 7336, independent: 5859, independent conditional: 5612, independent unconditional: 247, dependent: 1477, dependent conditional: 1470, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5866, independent: 5859, independent conditional: 5612, independent unconditional: 247, 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: 5866, independent: 5859, independent conditional: 5612, independent unconditional: 247, 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: 5866, independent: 5859, independent conditional: 0, independent unconditional: 5859, 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: 5866, independent: 5859, independent conditional: 0, independent unconditional: 5859, 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: 5866, independent: 5859, independent conditional: 0, independent unconditional: 5859, 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: 238, independent: 231, independent conditional: 0, independent unconditional: 231, 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: 238, independent: 230, independent conditional: 0, independent unconditional: 230, 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: 92, independent: 45, independent conditional: 0, independent unconditional: 45, dependent: 47, dependent conditional: 0, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 5866, independent: 5628, independent conditional: 0, independent unconditional: 5628, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 238, unknown conditional: 0, unknown unconditional: 238] , Statistics on independence cache: Total cache size (in pairs): 238, Positive cache size: 231, Positive conditional cache size: 0, Positive unconditional cache size: 231, 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: 1470 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.1s, Number of persistent set computation: 34, Number of trivial persistent sets: 20, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 254, independent: 247, independent conditional: 0, independent unconditional: 247, 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: 7336, independent: 5859, independent conditional: 5612, independent unconditional: 247, dependent: 1477, dependent conditional: 1470, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5866, independent: 5859, independent conditional: 5612, independent unconditional: 247, 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: 5866, independent: 5859, independent conditional: 5612, independent unconditional: 247, 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: 5866, independent: 5859, independent conditional: 0, independent unconditional: 5859, 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: 5866, independent: 5859, independent conditional: 0, independent unconditional: 5859, 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: 5866, independent: 5859, independent conditional: 0, independent unconditional: 5859, 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: 238, independent: 231, independent conditional: 0, independent unconditional: 231, 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: 238, independent: 230, independent conditional: 0, independent unconditional: 230, 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: 92, independent: 45, independent conditional: 0, independent unconditional: 45, dependent: 47, dependent conditional: 0, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 5866, independent: 5628, independent conditional: 0, independent unconditional: 5628, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 238, unknown conditional: 0, unknown unconditional: 238] , Statistics on independence cache: Total cache size (in pairs): 238, Positive cache size: 231, Positive conditional cache size: 0, Positive unconditional cache size: 231, 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: 1470 - 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; [L685] 0 int p, q; [L702] 0 int cur = 1, prev = 0, next = 0; [L703] 0 int x; [L713] 0 pthread_t id1, id2; VAL [\old(argc)=75026, argc=75026, argv={75027:75028}, cur=1, i=0, id1={3:0}, id2={5:0}, j=0, next=0, p=0, prev=0, q=0, x=0] [L715] 0 i = 1 VAL [\old(argc)=75026, argc=75026, argv={75027:75028}, cur=1, i=1, id1={3:0}, id2={5:0}, j=0, next=0, p=0, prev=0, q=0, x=0] [L718] 0 j = 1 VAL [\old(argc)=75026, argc=75026, argv={75027:75028}, cur=1, i=1, id1={3:0}, id2={5:0}, 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)=75026, arg={0:0}, argc=75026, argv={75027:75028}, cur=1, i=1, id1={3:0}, id2={5:0}, j=1, next=0, p=0, prev=0, 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)=75026, arg={0:0}, arg={0:0}, arg={0:0}, argc=75026, argv={75027:75028}, cur=1, i=1, id1={3:0}, id2={5:0}, j=1, next=0, p=0, prev=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 < 11 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 < 11 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 < 24 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [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 < 11 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 < 11 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 < 24 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [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 < 11 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 < 11 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 < 24 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [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 < 11 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 < 11 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 < 24 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [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 < 11 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 < 11 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 < 24 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [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 TRUE 1 p < 11 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] [L689] 1 i = i + j VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=8, i=233, j=144, next=8, p=5, prev=5, q=5, x=5] [L687] 1 p++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=8, i=233, j=144, next=8, p=6, prev=5, q=5, x=5] [L695] COND TRUE 2 q < 11 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=8, i=233, j=144, next=8, p=6, prev=5, q=5, x=5] [L697] 2 j = j + i VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=8, i=233, j=377, next=8, p=6, prev=5, q=5, x=5] [L695] 2 q++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=8, i=233, j=377, next=8, p=6, prev=5, q=6, x=5] [L705] COND TRUE 0 x < 24 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=13, i=233, j=377, next=13, p=6, prev=8, q=6, x=6] [L687] COND TRUE 1 p < 11 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=13, i=233, j=377, next=13, p=6, prev=8, q=6, x=6] [L689] 1 i = i + j VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=13, i=610, j=377, next=13, p=6, prev=8, q=6, x=6] [L687] 1 p++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=13, i=610, j=377, next=13, p=7, prev=8, q=6, x=6] [L695] COND TRUE 2 q < 11 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=13, i=610, j=377, next=13, p=7, prev=8, q=6, x=6] [L697] 2 j = j + i VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=13, i=610, j=987, next=13, p=7, prev=8, q=6, x=6] [L695] 2 q++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=13, i=610, j=987, next=13, p=7, prev=8, q=7, x=6] [L705] COND TRUE 0 x < 24 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=21, i=610, j=987, next=21, p=7, prev=13, q=7, x=7] [L687] COND TRUE 1 p < 11 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=21, i=610, j=987, next=21, p=7, prev=13, q=7, x=7] [L689] 1 i = i + j VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=21, i=1597, j=987, next=21, p=7, prev=13, q=7, x=7] [L687] 1 p++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=21, i=1597, j=987, next=21, p=8, prev=13, q=7, x=7] [L695] COND TRUE 2 q < 11 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=21, i=1597, j=987, next=21, p=8, prev=13, q=7, x=7] [L697] 2 j = j + i VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=21, i=1597, j=2584, next=21, p=8, prev=13, q=7, x=7] [L695] 2 q++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=21, i=1597, j=2584, next=21, p=8, prev=13, q=8, x=7] [L705] COND TRUE 0 x < 24 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=34, i=1597, j=2584, next=34, p=8, prev=21, q=8, x=8] [L687] COND TRUE 1 p < 11 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=34, i=1597, j=2584, next=34, p=8, prev=21, q=8, x=8] [L689] 1 i = i + j VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=34, i=4181, j=2584, next=34, p=8, prev=21, q=8, x=8] [L687] 1 p++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=34, i=4181, j=2584, next=34, p=9, prev=21, q=8, x=8] [L695] COND TRUE 2 q < 11 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=34, i=4181, j=2584, next=34, p=9, prev=21, q=8, x=8] [L697] 2 j = j + i VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=34, i=4181, j=6765, next=34, p=9, prev=21, q=8, x=8] [L695] 2 q++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=34, i=4181, j=6765, next=34, p=9, prev=21, q=9, x=8] [L705] COND TRUE 0 x < 24 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=55, i=4181, j=6765, next=55, p=9, prev=34, q=9, x=9] [L687] COND TRUE 1 p < 11 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=55, i=4181, j=6765, next=55, p=9, prev=34, q=9, x=9] [L689] 1 i = i + j VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=55, i=10946, j=6765, next=55, p=9, prev=34, q=9, x=9] [L687] 1 p++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=55, i=10946, j=6765, next=55, p=10, prev=34, q=9, x=9] [L695] COND TRUE 2 q < 11 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=55, i=10946, j=6765, next=55, p=10, prev=34, q=9, x=9] [L697] 2 j = j + i VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=55, i=10946, j=17711, next=55, p=10, prev=34, q=9, x=9] [L695] 2 q++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=55, i=10946, j=17711, next=55, p=10, prev=34, q=10, x=9] [L705] COND TRUE 0 x < 24 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=89, i=10946, j=17711, next=89, p=10, prev=55, q=10, x=10] [L687] COND TRUE 1 p < 11 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=89, i=10946, j=17711, next=89, p=10, prev=55, q=10, x=10] [L689] 1 i = i + j VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=89, i=28657, j=17711, next=89, p=10, prev=55, q=10, x=10] [L687] 1 p++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=89, i=28657, j=17711, next=89, p=11, prev=55, q=10, x=10] [L695] COND TRUE 2 q < 11 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=89, i=28657, j=17711, next=89, p=11, prev=55, q=10, x=10] [L697] 2 j = j + i VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=89, i=28657, j=46368, next=89, p=11, prev=55, q=10, x=10] [L695] 2 q++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=89, i=28657, j=46368, next=89, p=11, prev=55, q=11, x=10] [L705] COND TRUE 0 x < 24 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=144, i=28657, j=46368, next=144, p=11, prev=89, q=11, x=11] [L687] COND FALSE 1 !(p < 11) [L692] 1 return ((void *)0); [L695] COND FALSE 2 !(q < 11) [L700] 2 return ((void *)0); [L705] COND TRUE 0 x < 24 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [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=28657, j=46368, next=233, p=11, prev=144, q=11, x=12] [L705] COND TRUE 0 x < 24 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=377, i=28657, j=46368, next=377, p=11, prev=233, q=11, x=13] [L705] COND TRUE 0 x < 24 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=610, i=28657, j=46368, next=610, p=11, prev=377, q=11, x=14] [L705] COND TRUE 0 x < 24 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=987, i=28657, j=46368, next=987, p=11, prev=610, q=11, x=15] [L705] COND TRUE 0 x < 24 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=1597, i=28657, j=46368, next=1597, p=11, prev=987, q=11, x=16] [L705] COND TRUE 0 x < 24 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=2584, i=28657, j=46368, next=2584, p=11, prev=1597, q=11, x=17] [L705] COND TRUE 0 x < 24 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=4181, i=28657, j=46368, next=4181, p=11, prev=2584, q=11, x=18] [L705] COND TRUE 0 x < 24 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=6765, i=28657, j=46368, next=6765, p=11, prev=4181, q=11, x=19] [L705] COND TRUE 0 x < 24 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=10946, i=28657, j=46368, next=10946, p=11, prev=6765, q=11, x=20] [L705] COND TRUE 0 x < 24 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=17711, i=28657, j=46368, next=17711, p=11, prev=10946, q=11, x=21] [L705] COND TRUE 0 x < 24 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=28657, i=28657, j=46368, next=28657, p=11, prev=17711, q=11, x=22] [L705] COND TRUE 0 x < 24 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=46368, i=28657, j=46368, next=46368, p=11, prev=28657, q=11, x=23] [L705] COND TRUE 0 x < 24 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cur=75025, i=28657, j=46368, next=75025, p=11, prev=46368, q=11, x=24] [L705] COND FALSE 0 !(x < 24) [L710] 0 return prev; [L722] RET, EXPR 0 fib() [L722] 0 int correct = fib(); [L724] 0 _Bool assert_cond = i < correct && j < correct; VAL [\old(argc)=75026, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, argc=75026, argv={75027:75028}, assert_cond=0, correct=46368, cur=75025, i=28657, id1={3:0}, id2={5:0}, j=46368, next=75025, p=11, prev=46368, q=11, x=24] [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=75025, expression=0, i=28657, j=46368, next=75025, p=11, prev=46368, q=11, x=24] [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=75025, expression=0, i=28657, j=46368, next=75025, p=11, prev=46368, q=11, x=24] - UnprovableResult [Line: 720]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 721]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 38 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 10.9s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 4, EmptinessCheckTime: 1.5s, 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: 99, 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: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 6.2s InterpolantComputationTime, 1304 NumberOfCodeBlocks, 1304 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 1453 ConstructedInterpolants, 0 QuantifiedInterpolants, 3667 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2220 ConjunctsInSsa, 71 ConjunctsInUnsatCore, 17 InterpolantComputations, 3 PerfectInterpolantSequences, 2959/9119 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! [2023-11-24 22:07:37,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b0c56a-bf29-47a8-81f0-355f60e61c86/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2023-11-24 22:07:37,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b0c56a-bf29-47a8-81f0-355f60e61c86/bin/ugemcutter-verify-oI9GxRtH0S/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