./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e949ff08-3736-4219-97b5-8e7d880ceb44/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e949ff08-3736-4219-97b5-8e7d880ceb44/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e949ff08-3736-4219-97b5-8e7d880ceb44/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e949ff08-3736-4219-97b5-8e7d880ceb44/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e949ff08-3736-4219-97b5-8e7d880ceb44/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e949ff08-3736-4219-97b5-8e7d880ceb44/bin/uautomizer-verify-84ZbGMXZE1 --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 462fb42b593b74362524fb8209dde3f76380a79de0c48b612eb75bd0eda8df1c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 06:13:43,299 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 06:13:43,355 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e949ff08-3736-4219-97b5-8e7d880ceb44/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 06:13:43,359 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 06:13:43,360 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 06:13:43,380 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 06:13:43,381 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 06:13:43,381 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 06:13:43,382 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 06:13:43,382 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 06:13:43,382 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 06:13:43,382 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 06:13:43,382 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 06:13:43,382 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 06:13:43,382 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 06:13:43,382 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 06:13:43,383 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 06:13:43,383 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 06:13:43,383 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 06:13:43,383 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 06:13:43,383 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 06:13:43,383 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 06:13:43,383 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 06:13:43,383 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 06:13:43,383 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 06:13:43,383 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 06:13:43,383 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 06:13:43,383 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 06:13:43,383 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 06:13:43,383 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:13:43,384 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:13:43,384 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:13:43,384 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:13:43,384 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 06:13:43,384 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:13:43,384 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:13:43,384 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:13:43,384 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:13:43,384 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 06:13:43,384 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 06:13:43,384 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 06:13:43,385 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 06:13:43,385 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 06:13:43,385 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 06:13:43,385 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 06:13:43,385 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 06:13:43,385 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 06:13:43,385 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 06:13:43,385 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_e949ff08-3736-4219-97b5-8e7d880ceb44/bin/uautomizer-verify-84ZbGMXZE1 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 -> 462fb42b593b74362524fb8209dde3f76380a79de0c48b612eb75bd0eda8df1c [2024-12-02 06:13:43,615 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 06:13:43,622 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 06:13:43,625 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 06:13:43,626 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 06:13:43,626 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 06:13:43,627 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e949ff08-3736-4219-97b5-8e7d880ceb44/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c [2024-12-02 06:13:46,254 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e949ff08-3736-4219-97b5-8e7d880ceb44/bin/uautomizer-verify-84ZbGMXZE1/data/71300276e/ba75770afdc94c73a2412a4411c3fcc8/FLAG1e392065f [2024-12-02 06:13:46,441 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 06:13:46,450 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e949ff08-3736-4219-97b5-8e7d880ceb44/sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c [2024-12-02 06:13:46,458 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e949ff08-3736-4219-97b5-8e7d880ceb44/bin/uautomizer-verify-84ZbGMXZE1/data/71300276e/ba75770afdc94c73a2412a4411c3fcc8/FLAG1e392065f [2024-12-02 06:13:46,801 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e949ff08-3736-4219-97b5-8e7d880ceb44/bin/uautomizer-verify-84ZbGMXZE1/data/71300276e/ba75770afdc94c73a2412a4411c3fcc8 [2024-12-02 06:13:46,803 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 06:13:46,804 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 06:13:46,805 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 06:13:46,805 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 06:13:46,808 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 06:13:46,809 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:13:46" (1/1) ... [2024-12-02 06:13:46,810 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c034553 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:13:46, skipping insertion in model container [2024-12-02 06:13:46,810 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:13:46" (1/1) ... [2024-12-02 06:13:46,824 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 06:13:46,983 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_e949ff08-3736-4219-97b5-8e7d880ceb44/sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c[4450,4463] [2024-12-02 06:13:46,992 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:13:47,000 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 06:13:47,023 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_e949ff08-3736-4219-97b5-8e7d880ceb44/sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c[4450,4463] [2024-12-02 06:13:47,027 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:13:47,041 INFO L204 MainTranslator]: Completed translation [2024-12-02 06:13:47,042 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:13:47 WrapperNode [2024-12-02 06:13:47,042 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 06:13:47,043 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 06:13:47,043 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 06:13:47,043 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 06:13:47,049 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:13:47" (1/1) ... [2024-12-02 06:13:47,057 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:13:47" (1/1) ... [2024-12-02 06:13:47,079 INFO L138 Inliner]: procedures = 28, calls = 65, calls flagged for inlining = 21, calls inlined = 27, statements flattened = 294 [2024-12-02 06:13:47,079 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 06:13:47,080 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 06:13:47,080 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 06:13:47,080 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 06:13:47,086 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:13:47" (1/1) ... [2024-12-02 06:13:47,086 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:13:47" (1/1) ... [2024-12-02 06:13:47,089 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:13:47" (1/1) ... [2024-12-02 06:13:47,105 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-12-02 06:13:47,106 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:13:47" (1/1) ... [2024-12-02 06:13:47,106 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:13:47" (1/1) ... [2024-12-02 06:13:47,115 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:13:47" (1/1) ... [2024-12-02 06:13:47,116 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:13:47" (1/1) ... [2024-12-02 06:13:47,120 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:13:47" (1/1) ... [2024-12-02 06:13:47,121 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:13:47" (1/1) ... [2024-12-02 06:13:47,122 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:13:47" (1/1) ... [2024-12-02 06:13:47,124 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 06:13:47,125 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 06:13:47,125 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 06:13:47,125 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 06:13:47,126 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:13:47" (1/1) ... [2024-12-02 06:13:47,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:13:47,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e949ff08-3736-4219-97b5-8e7d880ceb44/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:13:47,154 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e949ff08-3736-4219-97b5-8e7d880ceb44/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 06:13:47,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e949ff08-3736-4219-97b5-8e7d880ceb44/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 06:13:47,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 06:13:47,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 06:13:47,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 06:13:47,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 06:13:47,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 06:13:47,182 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-12-02 06:13:47,182 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-12-02 06:13:47,182 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-12-02 06:13:47,182 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-12-02 06:13:47,182 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-12-02 06:13:47,182 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-12-02 06:13:47,182 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-12-02 06:13:47,182 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-12-02 06:13:47,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 06:13:47,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 06:13:47,183 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-12-02 06:13:47,183 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-12-02 06:13:47,183 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2024-12-02 06:13:47,183 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2024-12-02 06:13:47,183 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-12-02 06:13:47,183 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-12-02 06:13:47,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 06:13:47,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 06:13:47,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 06:13:47,185 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-02 06:13:47,288 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 06:13:47,289 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 06:13:47,683 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-02 06:13:47,683 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 06:13:47,985 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 06:13:47,985 INFO L312 CfgBuilder]: Removed 5 assume(true) statements. [2024-12-02 06:13:47,986 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:13:47 BoogieIcfgContainer [2024-12-02 06:13:47,986 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 06:13:47,987 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 06:13:47,987 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 06:13:47,992 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 06:13:47,992 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:13:46" (1/3) ... [2024-12-02 06:13:47,992 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25c4da62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:13:47, skipping insertion in model container [2024-12-02 06:13:47,993 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:13:47" (2/3) ... [2024-12-02 06:13:47,993 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25c4da62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:13:47, skipping insertion in model container [2024-12-02 06:13:47,993 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:13:47" (3/3) ... [2024-12-02 06:13:47,994 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-1-dsl.wvr.c [2024-12-02 06:13:48,009 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 06:13:48,010 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-parallel-sum-1-dsl.wvr.c that has 7 procedures, 66 locations, 1 initial locations, 5 loop locations, and 1 error locations. [2024-12-02 06:13:48,010 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-02 06:13:48,097 INFO L143 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2024-12-02 06:13:48,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 90 places, 84 transitions, 234 flow [2024-12-02 06:13:48,176 INFO L124 PetriNetUnfolderBase]: 13/72 cut-off events. [2024-12-02 06:13:48,178 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-12-02 06:13:48,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 72 events. 13/72 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 173 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 81. Up to 3 conditions per place. [2024-12-02 06:13:48,182 INFO L82 GeneralOperation]: Start removeDead. Operand has 90 places, 84 transitions, 234 flow [2024-12-02 06:13:48,186 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 71 transitions, 190 flow [2024-12-02 06:13:48,193 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 06:13:48,203 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;@5395a7a6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 06:13:48,203 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-12-02 06:13:48,227 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 06:13:48,227 INFO L124 PetriNetUnfolderBase]: 13/70 cut-off events. [2024-12-02 06:13:48,227 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-12-02 06:13:48,228 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:13:48,228 INFO L206 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] [2024-12-02 06:13:48,229 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-12-02 06:13:48,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:13:48,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1570199092, now seen corresponding path program 1 times [2024-12-02 06:13:48,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:13:48,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359187966] [2024-12-02 06:13:48,242 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:13:48,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:13:48,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:13:48,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:13:48,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:13:48,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359187966] [2024-12-02 06:13:48,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359187966] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:13:48,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:13:48,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 06:13:48,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008158702] [2024-12-02 06:13:48,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:13:48,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 06:13:48,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:13:48,478 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 06:13:48,478 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 06:13:48,479 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 88 [2024-12-02 06:13:48,481 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 71 transitions, 190 flow. Second operand has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 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) [2024-12-02 06:13:48,482 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 06:13:48,482 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 88 [2024-12-02 06:13:48,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 06:14:02,421 INFO L124 PetriNetUnfolderBase]: 217418/267825 cut-off events. [2024-12-02 06:14:02,421 INFO L125 PetriNetUnfolderBase]: For 20449/20449 co-relation queries the response was YES. [2024-12-02 06:14:02,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 558764 conditions, 267825 events. 217418/267825 cut-off events. For 20449/20449 co-relation queries the response was YES. Maximal size of possible extension queue 6479. Compared 1400530 event pairs, 189477 based on Foata normal form. 0/239836 useless extension candidates. Maximal degree in co-relation 557464. Up to 267661 conditions per place. [2024-12-02 06:14:03,685 INFO L140 encePairwiseOnDemand]: 84/88 looper letters, 62 selfloop transitions, 0 changer transitions 0/67 dead transitions. [2024-12-02 06:14:03,685 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 67 transitions, 306 flow [2024-12-02 06:14:03,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 06:14:03,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-12-02 06:14:03,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 88 transitions. [2024-12-02 06:14:03,698 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-12-02 06:14:03,700 INFO L175 Difference]: Start difference. First operand has 77 places, 71 transitions, 190 flow. Second operand 2 states and 88 transitions. [2024-12-02 06:14:03,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 67 transitions, 306 flow [2024-12-02 06:14:04,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 67 transitions, 274 flow, removed 0 selfloop flow, removed 12 redundant places. [2024-12-02 06:14:04,476 INFO L231 Difference]: Finished difference. Result has 66 places, 67 transitions, 150 flow [2024-12-02 06:14:04,479 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=150, PETRI_PLACES=66, PETRI_TRANSITIONS=67} [2024-12-02 06:14:04,482 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, -11 predicate places. [2024-12-02 06:14:04,482 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 67 transitions, 150 flow [2024-12-02 06:14:04,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 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) [2024-12-02 06:14:04,482 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:14:04,483 INFO L206 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] [2024-12-02 06:14:04,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 06:14:04,483 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-12-02 06:14:04,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:14:04,484 INFO L85 PathProgramCache]: Analyzing trace with hash 838301180, now seen corresponding path program 1 times [2024-12-02 06:14:04,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:14:04,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123712968] [2024-12-02 06:14:04,485 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:14:04,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:14:04,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:14:04,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:14:04,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:14:04,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123712968] [2024-12-02 06:14:04,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123712968] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:14:04,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:14:04,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:14:04,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792649279] [2024-12-02 06:14:04,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:14:04,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:14:04,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:14:04,698 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:14:04,698 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:14:04,699 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 88 [2024-12-02 06:14:04,699 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 67 transitions, 150 flow. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 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) [2024-12-02 06:14:04,699 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 06:14:04,699 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 88 [2024-12-02 06:14:04,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 06:14:32,106 INFO L124 PetriNetUnfolderBase]: 512655/632488 cut-off events. [2024-12-02 06:14:32,106 INFO L125 PetriNetUnfolderBase]: For 9262/9262 co-relation queries the response was YES. [2024-12-02 06:14:32,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1277054 conditions, 632488 events. 512655/632488 cut-off events. For 9262/9262 co-relation queries the response was YES. Maximal size of possible extension queue 14109. Compared 3667146 event pairs, 205284 based on Foata normal form. 1/562231 useless extension candidates. Maximal degree in co-relation 1277051. Up to 275601 conditions per place. [2024-12-02 06:14:34,675 INFO L140 encePairwiseOnDemand]: 81/88 looper letters, 158 selfloop transitions, 8 changer transitions 1/172 dead transitions. [2024-12-02 06:14:34,676 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 172 transitions, 722 flow [2024-12-02 06:14:34,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:14:34,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 06:14:34,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 212 transitions. [2024-12-02 06:14:34,677 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6022727272727273 [2024-12-02 06:14:34,678 INFO L175 Difference]: Start difference. First operand has 66 places, 67 transitions, 150 flow. Second operand 4 states and 212 transitions. [2024-12-02 06:14:34,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 172 transitions, 722 flow [2024-12-02 06:14:34,679 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 172 transitions, 722 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 06:14:34,682 INFO L231 Difference]: Finished difference. Result has 71 places, 74 transitions, 203 flow [2024-12-02 06:14:34,682 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=203, PETRI_PLACES=71, PETRI_TRANSITIONS=74} [2024-12-02 06:14:34,683 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, -6 predicate places. [2024-12-02 06:14:34,683 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 74 transitions, 203 flow [2024-12-02 06:14:34,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 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) [2024-12-02 06:14:34,683 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 06:14:34,684 INFO L206 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] [2024-12-02 06:14:34,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 06:14:34,684 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-12-02 06:14:34,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:14:34,685 INFO L85 PathProgramCache]: Analyzing trace with hash -833724100, now seen corresponding path program 2 times [2024-12-02 06:14:34,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:14:34,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115188730] [2024-12-02 06:14:34,685 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 06:14:34,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:14:34,721 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 06:14:34,721 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 06:14:34,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:14:34,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:14:34,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115188730] [2024-12-02 06:14:34,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115188730] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:14:34,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:14:34,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:14:34,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706528627] [2024-12-02 06:14:34,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:14:34,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:14:34,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:14:34,843 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:14:34,843 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:14:34,843 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 88 [2024-12-02 06:14:34,844 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 74 transitions, 203 flow. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 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) [2024-12-02 06:14:34,844 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 06:14:34,844 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 88 [2024-12-02 06:14:34,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand