./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe036.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_f1e142eb-fa08-458a-b247-0ff44ef83d0c/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e142eb-fa08-458a-b247-0ff44ef83d0c/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e142eb-fa08-458a-b247-0ff44ef83d0c/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e142eb-fa08-458a-b247-0ff44ef83d0c/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe036.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e142eb-fa08-458a-b247-0ff44ef83d0c/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e142eb-fa08-458a-b247-0ff44ef83d0c/bin/uautomizer-verify-BQ2R08f2Ya --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1118c32f43b2d6844c8e6b0e5b4fae8199d058f7b991e3c8d975cf675dc5221a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 05:15:02,807 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 05:15:02,891 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e142eb-fa08-458a-b247-0ff44ef83d0c/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 05:15:02,896 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 05:15:02,897 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 05:15:02,920 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 05:15:02,921 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 05:15:02,921 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 05:15:02,922 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 05:15:02,922 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 05:15:02,923 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 05:15:02,924 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 05:15:02,924 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 05:15:02,925 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 05:15:02,925 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 05:15:02,926 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 05:15:02,926 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 05:15:02,927 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 05:15:02,927 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 05:15:02,928 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 05:15:02,928 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 05:15:02,929 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 05:15:02,929 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 05:15:02,930 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 05:15:02,930 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 05:15:02,931 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 05:15:02,931 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 05:15:02,932 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 05:15:02,932 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 05:15:02,932 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 05:15:02,933 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 05:15:02,933 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:15:02,933 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 05:15:02,934 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 05:15:02,934 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 05:15:02,934 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 05:15:02,934 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 05:15:02,935 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 05:15:02,935 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 05:15:02,935 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 05:15:02,935 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 05:15:02,936 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 05:15:02,936 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_f1e142eb-fa08-458a-b247-0ff44ef83d0c/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e142eb-fa08-458a-b247-0ff44ef83d0c/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1118c32f43b2d6844c8e6b0e5b4fae8199d058f7b991e3c8d975cf675dc5221a [2023-11-29 05:15:03,172 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 05:15:03,193 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 05:15:03,195 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 05:15:03,197 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 05:15:03,197 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 05:15:03,198 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e142eb-fa08-458a-b247-0ff44ef83d0c/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/pthread-wmm/safe036.i [2023-11-29 05:15:05,969 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 05:15:06,186 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 05:15:06,187 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e142eb-fa08-458a-b247-0ff44ef83d0c/sv-benchmarks/c/pthread-wmm/safe036.i [2023-11-29 05:15:06,202 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e142eb-fa08-458a-b247-0ff44ef83d0c/bin/uautomizer-verify-BQ2R08f2Ya/data/c10910aeb/c5e595e55ffc45cf92c970fe8fafbef1/FLAGd45d629f4 [2023-11-29 05:15:06,216 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e142eb-fa08-458a-b247-0ff44ef83d0c/bin/uautomizer-verify-BQ2R08f2Ya/data/c10910aeb/c5e595e55ffc45cf92c970fe8fafbef1 [2023-11-29 05:15:06,219 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 05:15:06,220 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 05:15:06,221 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 05:15:06,222 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 05:15:06,227 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 05:15:06,227 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:15:06" (1/1) ... [2023-11-29 05:15:06,228 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c202de4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:15:06, skipping insertion in model container [2023-11-29 05:15:06,229 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:15:06" (1/1) ... [2023-11-29 05:15:06,275 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:15:06,413 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_f1e142eb-fa08-458a-b247-0ff44ef83d0c/sv-benchmarks/c/pthread-wmm/safe036.i[941,954] [2023-11-29 05:15:06,547 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:15:06,558 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 05:15:06,570 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_f1e142eb-fa08-458a-b247-0ff44ef83d0c/sv-benchmarks/c/pthread-wmm/safe036.i[941,954] [2023-11-29 05:15:06,601 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:15:06,633 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 05:15:06,633 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 05:15:06,641 INFO L206 MainTranslator]: Completed translation [2023-11-29 05:15:06,641 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:15:06 WrapperNode [2023-11-29 05:15:06,641 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 05:15:06,642 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 05:15:06,643 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 05:15:06,643 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 05:15:06,650 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:15:06" (1/1) ... [2023-11-29 05:15:06,663 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:15:06" (1/1) ... [2023-11-29 05:15:06,685 INFO L138 Inliner]: procedures = 175, calls = 44, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 58 [2023-11-29 05:15:06,685 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 05:15:06,686 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 05:15:06,686 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 05:15:06,686 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 05:15:06,695 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:15:06" (1/1) ... [2023-11-29 05:15:06,696 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:15:06" (1/1) ... [2023-11-29 05:15:06,698 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:15:06" (1/1) ... [2023-11-29 05:15:06,711 INFO L175 MemorySlicer]: Split 4 memory accesses to 3 slices as follows [2, 1, 1]. 50 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2023-11-29 05:15:06,711 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:15:06" (1/1) ... [2023-11-29 05:15:06,711 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:15:06" (1/1) ... [2023-11-29 05:15:06,718 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:15:06" (1/1) ... [2023-11-29 05:15:06,720 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:15:06" (1/1) ... [2023-11-29 05:15:06,722 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:15:06" (1/1) ... [2023-11-29 05:15:06,724 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:15:06" (1/1) ... [2023-11-29 05:15:06,727 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 05:15:06,728 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 05:15:06,728 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 05:15:06,728 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 05:15:06,729 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:15:06" (1/1) ... [2023-11-29 05:15:06,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:15:06,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e142eb-fa08-458a-b247-0ff44ef83d0c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:15:06,759 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e142eb-fa08-458a-b247-0ff44ef83d0c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 05:15:06,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e142eb-fa08-458a-b247-0ff44ef83d0c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 05:15:06,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 05:15:06,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 05:15:06,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 05:15:06,796 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-29 05:15:06,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 05:15:06,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 05:15:06,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 05:15:06,796 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-29 05:15:06,796 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-29 05:15:06,797 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-29 05:15:06,797 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-29 05:15:06,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 05:15:06,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 05:15:06,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 05:15:06,797 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-29 05:15:06,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 05:15:06,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 05:15:06,799 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 05:15:06,925 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 05:15:06,927 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 05:15:07,047 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 05:15:07,128 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 05:15:07,129 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 05:15:07,129 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:15:07 BoogieIcfgContainer [2023-11-29 05:15:07,129 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 05:15:07,132 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 05:15:07,132 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 05:15:07,135 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 05:15:07,135 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 05:15:06" (1/3) ... [2023-11-29 05:15:07,136 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1338a8aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:15:07, skipping insertion in model container [2023-11-29 05:15:07,136 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:15:06" (2/3) ... [2023-11-29 05:15:07,136 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1338a8aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:15:07, skipping insertion in model container [2023-11-29 05:15:07,137 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:15:07" (3/3) ... [2023-11-29 05:15:07,138 INFO L112 eAbstractionObserver]: Analyzing ICFG safe036.i [2023-11-29 05:15:07,145 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-29 05:15:07,165 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 05:15:07,165 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 05:15:07,165 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 05:15:07,195 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-29 05:15:07,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 31 transitions, 70 flow [2023-11-29 05:15:07,247 INFO L124 PetriNetUnfolderBase]: 1/29 cut-off events. [2023-11-29 05:15:07,247 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 05:15:07,250 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 29 events. 1/29 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 42 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 29. Up to 2 conditions per place. [2023-11-29 05:15:07,250 INFO L82 GeneralOperation]: Start removeDead. Operand has 37 places, 31 transitions, 70 flow [2023-11-29 05:15:07,253 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 33 places, 26 transitions, 58 flow [2023-11-29 05:15:07,264 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 05:15:07,270 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=PETRI_NET, 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;@6ceff30b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 05:15:07,271 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-29 05:15:07,281 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 05:15:07,281 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2023-11-29 05:15:07,281 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 05:15:07,281 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:15:07,282 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:15:07,282 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 05:15:07,287 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:15:07,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1259004673, now seen corresponding path program 1 times [2023-11-29 05:15:07,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:15:07,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485155089] [2023-11-29 05:15:07,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:15:07,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:15:07,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:15:07,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:15:07,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:15:07,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485155089] [2023-11-29 05:15:07,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485155089] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:15:07,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:15:07,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:15:07,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566656720] [2023-11-29 05:15:07,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:15:07,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:15:07,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:15:07,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:15:07,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:15:07,751 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 31 [2023-11-29 05:15:07,754 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 26 transitions, 58 flow. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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) [2023-11-29 05:15:07,754 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:15:07,755 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 31 [2023-11-29 05:15:07,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:15:07,846 INFO L124 PetriNetUnfolderBase]: 54/154 cut-off events. [2023-11-29 05:15:07,846 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-29 05:15:07,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 278 conditions, 154 events. 54/154 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 617 event pairs, 6 based on Foata normal form. 9/157 useless extension candidates. Maximal degree in co-relation 268. Up to 55 conditions per place. [2023-11-29 05:15:07,850 INFO L140 encePairwiseOnDemand]: 26/31 looper letters, 17 selfloop transitions, 4 changer transitions 1/36 dead transitions. [2023-11-29 05:15:07,850 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 36 transitions, 125 flow [2023-11-29 05:15:07,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:15:07,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 05:15:07,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 92 transitions. [2023-11-29 05:15:07,862 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7419354838709677 [2023-11-29 05:15:07,863 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 92 transitions. [2023-11-29 05:15:07,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 92 transitions. [2023-11-29 05:15:07,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:15:07,866 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 92 transitions. [2023-11-29 05:15:07,868 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 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) [2023-11-29 05:15:07,871 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 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) [2023-11-29 05:15:07,872 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 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) [2023-11-29 05:15:07,873 INFO L175 Difference]: Start difference. First operand has 33 places, 26 transitions, 58 flow. Second operand 4 states and 92 transitions. [2023-11-29 05:15:07,874 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 36 transitions, 125 flow [2023-11-29 05:15:07,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 36 transitions, 122 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 05:15:07,877 INFO L231 Difference]: Finished difference. Result has 36 places, 28 transitions, 82 flow [2023-11-29 05:15:07,879 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=82, PETRI_PLACES=36, PETRI_TRANSITIONS=28} [2023-11-29 05:15:07,883 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 3 predicate places. [2023-11-29 05:15:07,883 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 28 transitions, 82 flow [2023-11-29 05:15:07,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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) [2023-11-29 05:15:07,883 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:15:07,884 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:15:07,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 05:15:07,884 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 05:15:07,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:15:07,885 INFO L85 PathProgramCache]: Analyzing trace with hash 589514782, now seen corresponding path program 1 times [2023-11-29 05:15:07,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:15:07,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134144354] [2023-11-29 05:15:07,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:15:07,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:15:07,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:15:08,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:15:08,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:15:08,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134144354] [2023-11-29 05:15:08,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134144354] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:15:08,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:15:08,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:15:08,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390457690] [2023-11-29 05:15:08,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:15:08,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:15:08,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:15:08,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:15:08,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:15:08,085 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 31 [2023-11-29 05:15:08,086 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 28 transitions, 82 flow. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 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) [2023-11-29 05:15:08,086 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:15:08,086 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 31 [2023-11-29 05:15:08,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:15:08,173 INFO L124 PetriNetUnfolderBase]: 38/109 cut-off events. [2023-11-29 05:15:08,173 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2023-11-29 05:15:08,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 254 conditions, 109 events. 38/109 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 288 event pairs, 2 based on Foata normal form. 8/113 useless extension candidates. Maximal degree in co-relation 242. Up to 28 conditions per place. [2023-11-29 05:15:08,176 INFO L140 encePairwiseOnDemand]: 26/31 looper letters, 16 selfloop transitions, 6 changer transitions 1/37 dead transitions. [2023-11-29 05:15:08,176 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 37 transitions, 151 flow [2023-11-29 05:15:08,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:15:08,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-29 05:15:08,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 110 transitions. [2023-11-29 05:15:08,178 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7096774193548387 [2023-11-29 05:15:08,178 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 110 transitions. [2023-11-29 05:15:08,179 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 110 transitions. [2023-11-29 05:15:08,179 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:15:08,179 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 110 transitions. [2023-11-29 05:15:08,181 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:15:08,182 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 31.0) internal successors, (186), 6 states have internal predecessors, (186), 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) [2023-11-29 05:15:08,182 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 31.0) internal successors, (186), 6 states have internal predecessors, (186), 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) [2023-11-29 05:15:08,182 INFO L175 Difference]: Start difference. First operand has 36 places, 28 transitions, 82 flow. Second operand 5 states and 110 transitions. [2023-11-29 05:15:08,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 37 transitions, 151 flow [2023-11-29 05:15:08,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 37 transitions, 142 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-11-29 05:15:08,185 INFO L231 Difference]: Finished difference. Result has 40 places, 28 transitions, 98 flow [2023-11-29 05:15:08,185 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=98, PETRI_PLACES=40, PETRI_TRANSITIONS=28} [2023-11-29 05:15:08,186 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 7 predicate places. [2023-11-29 05:15:08,187 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 28 transitions, 98 flow [2023-11-29 05:15:08,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 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) [2023-11-29 05:15:08,187 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:15:08,187 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:15:08,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 05:15:08,188 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 05:15:08,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:15:08,189 INFO L85 PathProgramCache]: Analyzing trace with hash 57331751, now seen corresponding path program 1 times [2023-11-29 05:15:08,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:15:08,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153313567] [2023-11-29 05:15:08,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:15:08,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:15:08,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:15:08,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:15:08,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:15:08,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153313567] [2023-11-29 05:15:08,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153313567] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:15:08,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:15:08,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 05:15:08,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706204768] [2023-11-29 05:15:08,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:15:08,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 05:15:08,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:15:08,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:15:08,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:15:08,414 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 31 [2023-11-29 05:15:08,414 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 28 transitions, 98 flow. Second operand has 6 states, 6 states have (on average 17.0) internal successors, (102), 6 states have internal predecessors, (102), 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) [2023-11-29 05:15:08,414 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:15:08,414 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 31 [2023-11-29 05:15:08,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:15:08,550 INFO L124 PetriNetUnfolderBase]: 71/196 cut-off events. [2023-11-29 05:15:08,550 INFO L125 PetriNetUnfolderBase]: For 85/85 co-relation queries the response was YES. [2023-11-29 05:15:08,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 445 conditions, 196 events. 71/196 cut-off events. For 85/85 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 757 event pairs, 20 based on Foata normal form. 4/186 useless extension candidates. Maximal degree in co-relation 431. Up to 72 conditions per place. [2023-11-29 05:15:08,553 INFO L140 encePairwiseOnDemand]: 25/31 looper letters, 17 selfloop transitions, 3 changer transitions 8/42 dead transitions. [2023-11-29 05:15:08,553 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 42 transitions, 188 flow [2023-11-29 05:15:08,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:15:08,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 05:15:08,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 119 transitions. [2023-11-29 05:15:08,555 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6397849462365591 [2023-11-29 05:15:08,555 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 119 transitions. [2023-11-29 05:15:08,555 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 119 transitions. [2023-11-29 05:15:08,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:15:08,555 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 119 transitions. [2023-11-29 05:15:08,556 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 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) [2023-11-29 05:15:08,558 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 31.0) internal successors, (217), 7 states have internal predecessors, (217), 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) [2023-11-29 05:15:08,558 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 31.0) internal successors, (217), 7 states have internal predecessors, (217), 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) [2023-11-29 05:15:08,558 INFO L175 Difference]: Start difference. First operand has 40 places, 28 transitions, 98 flow. Second operand 6 states and 119 transitions. [2023-11-29 05:15:08,558 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 42 transitions, 188 flow [2023-11-29 05:15:08,560 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 42 transitions, 154 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-11-29 05:15:08,561 INFO L231 Difference]: Finished difference. Result has 43 places, 30 transitions, 95 flow [2023-11-29 05:15:08,562 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=95, PETRI_PLACES=43, PETRI_TRANSITIONS=30} [2023-11-29 05:15:08,562 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 10 predicate places. [2023-11-29 05:15:08,563 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 30 transitions, 95 flow [2023-11-29 05:15:08,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.0) internal successors, (102), 6 states have internal predecessors, (102), 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) [2023-11-29 05:15:08,563 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:15:08,563 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:15:08,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 05:15:08,564 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 05:15:08,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:15:08,564 INFO L85 PathProgramCache]: Analyzing trace with hash 575289899, now seen corresponding path program 2 times [2023-11-29 05:15:08,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:15:08,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019249940] [2023-11-29 05:15:08,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:15:08,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:15:08,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:15:08,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:15:08,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:15:08,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019249940] [2023-11-29 05:15:08,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019249940] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:15:08,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:15:08,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 05:15:08,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145617737] [2023-11-29 05:15:08,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:15:08,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 05:15:08,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:15:08,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:15:08,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:15:08,748 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 31 [2023-11-29 05:15:08,749 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 30 transitions, 95 flow. Second operand has 6 states, 6 states have (on average 17.0) internal successors, (102), 6 states have internal predecessors, (102), 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) [2023-11-29 05:15:08,749 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:15:08,749 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 31 [2023-11-29 05:15:08,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:15:08,867 INFO L124 PetriNetUnfolderBase]: 67/194 cut-off events. [2023-11-29 05:15:08,867 INFO L125 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2023-11-29 05:15:08,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 418 conditions, 194 events. 67/194 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 788 event pairs, 10 based on Foata normal form. 4/187 useless extension candidates. Maximal degree in co-relation 411. Up to 66 conditions per place. [2023-11-29 05:15:08,869 INFO L140 encePairwiseOnDemand]: 25/31 looper letters, 0 selfloop transitions, 0 changer transitions 42/42 dead transitions. [2023-11-29 05:15:08,869 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 42 transitions, 183 flow [2023-11-29 05:15:08,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:15:08,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 05:15:08,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 118 transitions. [2023-11-29 05:15:08,871 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6344086021505376 [2023-11-29 05:15:08,871 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 118 transitions. [2023-11-29 05:15:08,871 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 118 transitions. [2023-11-29 05:15:08,872 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:15:08,872 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 118 transitions. [2023-11-29 05:15:08,873 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 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) [2023-11-29 05:15:08,874 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 31.0) internal successors, (217), 7 states have internal predecessors, (217), 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) [2023-11-29 05:15:08,874 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 31.0) internal successors, (217), 7 states have internal predecessors, (217), 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) [2023-11-29 05:15:08,874 INFO L175 Difference]: Start difference. First operand has 43 places, 30 transitions, 95 flow. Second operand 6 states and 118 transitions. [2023-11-29 05:15:08,874 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 42 transitions, 183 flow [2023-11-29 05:15:08,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 42 transitions, 180 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-11-29 05:15:08,876 INFO L231 Difference]: Finished difference. Result has 42 places, 0 transitions, 0 flow [2023-11-29 05:15:08,877 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=42, PETRI_TRANSITIONS=0} [2023-11-29 05:15:08,877 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 9 predicate places. [2023-11-29 05:15:08,878 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 0 transitions, 0 flow [2023-11-29 05:15:08,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.0) internal successors, (102), 6 states have internal predecessors, (102), 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) [2023-11-29 05:15:08,880 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-11-29 05:15:08,880 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-11-29 05:15:08,881 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-11-29 05:15:08,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 05:15:08,881 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2023-11-29 05:15:08,884 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-29 05:15:08,884 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 05:15:08,889 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 05:15:08 BasicIcfg [2023-11-29 05:15:08,889 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 05:15:08,890 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 05:15:08,890 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 05:15:08,890 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 05:15:08,891 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:15:07" (3/4) ... [2023-11-29 05:15:08,892 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 05:15:08,895 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-29 05:15:08,895 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-29 05:15:08,900 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 30 nodes and edges [2023-11-29 05:15:08,900 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-29 05:15:08,900 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-29 05:15:08,900 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 05:15:08,967 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e142eb-fa08-458a-b247-0ff44ef83d0c/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 05:15:08,967 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e142eb-fa08-458a-b247-0ff44ef83d0c/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 05:15:08,967 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 05:15:08,968 INFO L158 Benchmark]: Toolchain (without parser) took 2747.93ms. Allocated memory is still 172.0MB. Free memory was 133.4MB in the beginning and 105.5MB in the end (delta: 27.9MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. [2023-11-29 05:15:08,968 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 121.6MB. Free memory is still 91.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:15:08,969 INFO L158 Benchmark]: CACSL2BoogieTranslator took 420.33ms. Allocated memory is still 172.0MB. Free memory was 133.0MB in the beginning and 112.8MB in the end (delta: 20.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-29 05:15:08,969 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.66ms. Allocated memory is still 172.0MB. Free memory was 112.8MB in the beginning and 110.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 05:15:08,970 INFO L158 Benchmark]: Boogie Preprocessor took 41.47ms. Allocated memory is still 172.0MB. Free memory was 110.8MB in the beginning and 108.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 05:15:08,970 INFO L158 Benchmark]: RCFGBuilder took 401.56ms. Allocated memory is still 172.0MB. Free memory was 108.7MB in the beginning and 89.0MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-29 05:15:08,971 INFO L158 Benchmark]: TraceAbstraction took 1757.87ms. Allocated memory is still 172.0MB. Free memory was 88.6MB in the beginning and 110.8MB in the end (delta: -22.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:15:08,971 INFO L158 Benchmark]: Witness Printer took 77.49ms. Allocated memory is still 172.0MB. Free memory was 109.7MB in the beginning and 105.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 05:15:08,974 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 121.6MB. Free memory is still 91.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 420.33ms. Allocated memory is still 172.0MB. Free memory was 133.0MB in the beginning and 112.8MB in the end (delta: 20.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.66ms. Allocated memory is still 172.0MB. Free memory was 112.8MB in the beginning and 110.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.47ms. Allocated memory is still 172.0MB. Free memory was 110.8MB in the beginning and 108.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 401.56ms. Allocated memory is still 172.0MB. Free memory was 108.7MB in the beginning and 89.0MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1757.87ms. Allocated memory is still 172.0MB. Free memory was 88.6MB in the beginning and 110.8MB in the end (delta: -22.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 77.49ms. Allocated memory is still 172.0MB. Free memory was 109.7MB in the beginning and 105.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 49 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 104 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 89 mSDsluCounter, 57 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 52 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 255 IncrementalHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 5 mSDtfsCounter, 255 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=98occurred in iteration=2, InterpolantAutomatonStates: 21, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 74 ConstructedInterpolants, 0 QuantifiedInterpolants, 300 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-29 05:15:08,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1e142eb-fa08-458a-b247-0ff44ef83d0c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE