./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfc19ce2-2e5c-445d-b460-28d4a52cce1e/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfc19ce2-2e5c-445d-b460-28d4a52cce1e/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfc19ce2-2e5c-445d-b460-28d4a52cce1e/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfc19ce2-2e5c-445d-b460-28d4a52cce1e/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfc19ce2-2e5c-445d-b460-28d4a52cce1e/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfc19ce2-2e5c-445d-b460-28d4a52cce1e/bin/uautomizer-verify-jihMAELWvX --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 c01f4f7d2658db6d4a951cb25555f85a195a1e66c897cc0a3f349ba621d29da1 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:56:30,009 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:56:30,105 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfc19ce2-2e5c-445d-b460-28d4a52cce1e/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 18:56:30,113 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:56:30,116 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:56:30,157 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:56:30,159 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:56:30,160 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:56:30,161 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:56:30,163 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:56:30,163 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:56:30,163 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:56:30,164 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:56:30,165 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:56:30,165 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:56:30,167 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:56:30,168 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:56:30,168 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:56:30,169 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:56:30,169 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:56:30,169 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:56:30,174 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:56:30,174 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:56:30,195 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:56:30,195 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:56:30,196 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:56:30,197 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:56:30,197 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:56:30,198 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:56:30,198 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:56:30,198 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:56:30,199 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:56:30,199 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:56:30,199 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:56:30,200 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:56:30,200 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:56:30,201 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:56:30,202 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:56:30,202 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:56:30,202 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:56:30,203 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:56:30,203 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:56:30,203 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_dfc19ce2-2e5c-445d-b460-28d4a52cce1e/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfc19ce2-2e5c-445d-b460-28d4a52cce1e/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c01f4f7d2658db6d4a951cb25555f85a195a1e66c897cc0a3f349ba621d29da1 [2024-11-08 18:56:30,478 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:56:30,507 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:56:30,510 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:56:30,511 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:56:30,512 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:56:30,513 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfc19ce2-2e5c-445d-b460-28d4a52cce1e/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c Unable to find full path for "g++" [2024-11-08 18:56:32,495 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:56:32,717 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:56:32,717 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfc19ce2-2e5c-445d-b460-28d4a52cce1e/sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c [2024-11-08 18:56:32,727 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfc19ce2-2e5c-445d-b460-28d4a52cce1e/bin/uautomizer-verify-jihMAELWvX/data/8e5becbe1/3d7a4d9c3cb846f89d5051f0b6635be4/FLAG722975df2 [2024-11-08 18:56:33,099 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfc19ce2-2e5c-445d-b460-28d4a52cce1e/bin/uautomizer-verify-jihMAELWvX/data/8e5becbe1/3d7a4d9c3cb846f89d5051f0b6635be4 [2024-11-08 18:56:33,103 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:56:33,106 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:56:33,109 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:56:33,109 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:56:33,115 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:56:33,115 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:56:33" (1/1) ... [2024-11-08 18:56:33,116 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a60eba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:56:33, skipping insertion in model container [2024-11-08 18:56:33,117 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:56:33" (1/1) ... [2024-11-08 18:56:33,140 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:56:33,379 WARN L250 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_dfc19ce2-2e5c-445d-b460-28d4a52cce1e/sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c[2888,2901] [2024-11-08 18:56:33,389 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:56:33,399 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:56:33,429 WARN L250 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_dfc19ce2-2e5c-445d-b460-28d4a52cce1e/sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c[2888,2901] [2024-11-08 18:56:33,433 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:56:33,459 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:56:33,459 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:56:33 WrapperNode [2024-11-08 18:56:33,460 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:56:33,460 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:56:33,460 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:56:33,461 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:56:33,468 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:56:33" (1/1) ... [2024-11-08 18:56:33,476 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:56:33" (1/1) ... [2024-11-08 18:56:33,502 INFO L138 Inliner]: procedures = 24, calls = 30, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 148 [2024-11-08 18:56:33,502 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:56:33,503 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:56:33,503 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:56:33,503 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:56:33,513 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:56:33" (1/1) ... [2024-11-08 18:56:33,514 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:56:33" (1/1) ... [2024-11-08 18:56:33,517 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:56:33" (1/1) ... [2024-11-08 18:56:33,534 INFO L175 MemorySlicer]: Split 13 memory accesses to 2 slices as follows [2, 11]. 85 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 3 writes are split as follows [0, 3]. [2024-11-08 18:56:33,534 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:56:33" (1/1) ... [2024-11-08 18:56:33,534 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:56:33" (1/1) ... [2024-11-08 18:56:33,542 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:56:33" (1/1) ... [2024-11-08 18:56:33,546 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:56:33" (1/1) ... [2024-11-08 18:56:33,548 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:56:33" (1/1) ... [2024-11-08 18:56:33,550 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:56:33" (1/1) ... [2024-11-08 18:56:33,553 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:56:33,554 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:56:33,554 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:56:33,554 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:56:33,555 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:56:33" (1/1) ... [2024-11-08 18:56:33,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:56:33,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfc19ce2-2e5c-445d-b460-28d4a52cce1e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:56:33,595 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfc19ce2-2e5c-445d-b460-28d4a52cce1e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:56:33,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfc19ce2-2e5c-445d-b460-28d4a52cce1e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:56:33,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:56:33,624 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-08 18:56:33,625 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-08 18:56:33,625 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-08 18:56:33,625 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-08 18:56:33,625 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-08 18:56:33,625 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-08 18:56:33,627 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-08 18:56:33,628 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-08 18:56:33,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:56:33,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 18:56:33,628 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-11-08 18:56:33,628 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-11-08 18:56:33,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 18:56:33,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 18:56:33,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 18:56:33,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:56:33,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:56:33,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 18:56:33,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 18:56:33,634 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 18:56:33,753 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:56:33,755 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:56:34,158 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 18:56:34,158 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:56:34,461 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:56:34,461 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 18:56:34,462 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:56:34 BoogieIcfgContainer [2024-11-08 18:56:34,462 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:56:34,466 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:56:34,467 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:56:34,471 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:56:34,471 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:56:33" (1/3) ... [2024-11-08 18:56:34,472 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e5b939 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:56:34, skipping insertion in model container [2024-11-08 18:56:34,472 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:56:33" (2/3) ... [2024-11-08 18:56:34,474 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e5b939 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:56:34, skipping insertion in model container [2024-11-08 18:56:34,474 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:56:34" (3/3) ... [2024-11-08 18:56:34,476 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-min-max-inc-dec.wvr.c [2024-11-08 18:56:34,498 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:56:34,499 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 18:56:34,499 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 18:56:34,613 INFO L143 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2024-11-08 18:56:34,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 92 places, 88 transitions, 211 flow [2024-11-08 18:56:34,727 INFO L124 PetriNetUnfolderBase]: 12/83 cut-off events. [2024-11-08 18:56:34,727 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-08 18:56:34,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 83 events. 12/83 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 224 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 78. Up to 2 conditions per place. [2024-11-08 18:56:34,735 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 88 transitions, 211 flow [2024-11-08 18:56:34,741 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 86 places, 82 transitions, 194 flow [2024-11-08 18:56:34,753 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:56:34,760 INFO L333 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, 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;@55c6b749, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:56:34,760 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-08 18:56:34,812 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 18:56:34,813 INFO L124 PetriNetUnfolderBase]: 12/81 cut-off events. [2024-11-08 18:56:34,813 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-08 18:56:34,813 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:56:34,814 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:56:34,815 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-08 18:56:34,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:56:34,822 INFO L85 PathProgramCache]: Analyzing trace with hash 668658819, now seen corresponding path program 1 times [2024-11-08 18:56:34,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:56:34,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352404993] [2024-11-08 18:56:34,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:56:34,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:56:35,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:56:35,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:56:35,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:56:35,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352404993] [2024-11-08 18:56:35,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352404993] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:56:35,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:56:35,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:56:35,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439467439] [2024-11-08 18:56:35,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:56:35,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:56:35,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:56:35,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:56:35,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:56:35,568 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 88 [2024-11-08 18:56:35,571 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 82 transitions, 194 flow. Second operand has 4 states, 4 states have (on average 47.75) internal successors, (191), 4 states have internal predecessors, (191), 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) [2024-11-08 18:56:35,572 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:56:35,573 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 88 [2024-11-08 18:56:35,574 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:56:49,524 INFO L124 PetriNetUnfolderBase]: 101063/139545 cut-off events. [2024-11-08 18:56:49,525 INFO L125 PetriNetUnfolderBase]: For 6386/6386 co-relation queries the response was YES. [2024-11-08 18:56:49,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 262476 conditions, 139545 events. 101063/139545 cut-off events. For 6386/6386 co-relation queries the response was YES. Maximal size of possible extension queue 5922. Compared 1064087 event pairs, 46251 based on Foata normal form. 3852/130950 useless extension candidates. Maximal degree in co-relation 247745. Up to 74556 conditions per place. [2024-11-08 18:56:50,876 INFO L140 encePairwiseOnDemand]: 83/88 looper letters, 73 selfloop transitions, 3 changer transitions 0/111 dead transitions. [2024-11-08 18:56:50,877 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 111 transitions, 416 flow [2024-11-08 18:56:50,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:56:50,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 18:56:50,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 238 transitions. [2024-11-08 18:56:50,892 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6761363636363636 [2024-11-08 18:56:50,895 INFO L175 Difference]: Start difference. First operand has 86 places, 82 transitions, 194 flow. Second operand 4 states and 238 transitions. [2024-11-08 18:56:50,896 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 111 transitions, 416 flow [2024-11-08 18:56:51,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 111 transitions, 388 flow, removed 0 selfloop flow, removed 10 redundant places. [2024-11-08 18:56:51,170 INFO L231 Difference]: Finished difference. Result has 80 places, 83 transitions, 190 flow [2024-11-08 18:56:51,172 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=190, PETRI_PLACES=80, PETRI_TRANSITIONS=83} [2024-11-08 18:56:51,176 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, -6 predicate places. [2024-11-08 18:56:51,177 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 83 transitions, 190 flow [2024-11-08 18:56:51,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 4 states have internal predecessors, (191), 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) [2024-11-08 18:56:51,177 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:56:51,177 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:56:51,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:56:51,178 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-08 18:56:51,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:56:51,179 INFO L85 PathProgramCache]: Analyzing trace with hash -754791184, now seen corresponding path program 1 times [2024-11-08 18:56:51,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:56:51,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763416300] [2024-11-08 18:56:51,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:56:51,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:56:51,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:56:51,340 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 18:56:51,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:56:51,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763416300] [2024-11-08 18:56:51,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763416300] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:56:51,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:56:51,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:56:51,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196111151] [2024-11-08 18:56:51,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:56:51,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:56:51,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:56:51,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:56:51,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:56:51,402 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 88 [2024-11-08 18:56:51,402 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 83 transitions, 190 flow. Second operand has 4 states, 4 states have (on average 48.75) internal successors, (195), 4 states have internal predecessors, (195), 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) [2024-11-08 18:56:51,402 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:56:51,403 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 88 [2024-11-08 18:56:51,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:57:09,391 INFO L124 PetriNetUnfolderBase]: 160259/214230 cut-off events. [2024-11-08 18:57:09,391 INFO L125 PetriNetUnfolderBase]: For 18389/18389 co-relation queries the response was YES. [2024-11-08 18:57:09,967 INFO L83 FinitePrefix]: Finished finitePrefix Result has 423991 conditions, 214230 events. 160259/214230 cut-off events. For 18389/18389 co-relation queries the response was YES. Maximal size of possible extension queue 8397. Compared 1610196 event pairs, 78161 based on Foata normal form. 6186/210972 useless extension candidates. Maximal degree in co-relation 53536. Up to 123427 conditions per place. [2024-11-08 18:57:10,992 INFO L140 encePairwiseOnDemand]: 83/88 looper letters, 74 selfloop transitions, 3 changer transitions 0/112 dead transitions. [2024-11-08 18:57:10,992 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 112 transitions, 414 flow [2024-11-08 18:57:10,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:57:10,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 18:57:10,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 237 transitions. [2024-11-08 18:57:10,995 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6732954545454546 [2024-11-08 18:57:10,996 INFO L175 Difference]: Start difference. First operand has 80 places, 83 transitions, 190 flow. Second operand 4 states and 237 transitions. [2024-11-08 18:57:10,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 112 transitions, 414 flow [2024-11-08 18:57:11,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 112 transitions, 408 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 18:57:11,316 INFO L231 Difference]: Finished difference. Result has 82 places, 84 transitions, 202 flow [2024-11-08 18:57:11,317 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=202, PETRI_PLACES=82, PETRI_TRANSITIONS=84} [2024-11-08 18:57:11,318 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, -4 predicate places. [2024-11-08 18:57:11,318 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 84 transitions, 202 flow [2024-11-08 18:57:11,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.75) internal successors, (195), 4 states have internal predecessors, (195), 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) [2024-11-08 18:57:11,319 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:57:11,319 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:57:11,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 18:57:11,319 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-08 18:57:11,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:57:11,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1131503051, now seen corresponding path program 1 times [2024-11-08 18:57:11,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:57:11,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573881357] [2024-11-08 18:57:11,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:57:11,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:57:11,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:57:11,500 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 18:57:11,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:57:11,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573881357] [2024-11-08 18:57:11,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573881357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:57:11,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:57:11,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:57:11,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973571107] [2024-11-08 18:57:11,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:57:11,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:57:11,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:57:11,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:57:11,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:57:11,556 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 88 [2024-11-08 18:57:11,556 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 84 transitions, 202 flow. Second operand has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 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) [2024-11-08 18:57:11,556 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:57:11,556 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 88 [2024-11-08 18:57:11,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand