./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/popl20-more-multiply-verify.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows 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_6edf1b08-418f-439b-ba0a-fa583b4cba1c/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6edf1b08-418f-439b-ba0a-fa583b4cba1c/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_6edf1b08-418f-439b-ba0a-fa583b4cba1c/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6edf1b08-418f-439b-ba0a-fa583b4cba1c/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-multiply-verify.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6edf1b08-418f-439b-ba0a-fa583b4cba1c/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6edf1b08-418f-439b-ba0a-fa583b4cba1c/bin/uautomizer-verify-jihMAELWvX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d79cb5dae664e13779624ff0ffbc531b419f89e2c7510a92e890992a52ee7c98 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:23:50,942 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:23:51,042 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6edf1b08-418f-439b-ba0a-fa583b4cba1c/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-08 18:23:51,048 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:23:51,049 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:23:51,088 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:23:51,089 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:23:51,089 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:23:51,090 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:23:51,091 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:23:51,091 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:23:51,092 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:23:51,092 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:23:51,094 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:23:51,095 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:23:51,095 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:23:51,097 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:23:51,098 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:23:51,098 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:23:51,098 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:23:51,099 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:23:51,103 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:23:51,103 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:23:51,104 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:23:51,104 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:23:51,104 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 18:23:51,105 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 18:23:51,113 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:23:51,114 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:23:51,114 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:23:51,114 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:23:51,115 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:23:51,115 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:23:51,115 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:23:51,115 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:23:51,116 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:23:51,116 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:23:51,118 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:23:51,118 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:23:51,119 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:23:51,119 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:23:51,119 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:23:51,120 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:23:51,121 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:23:51,122 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_6edf1b08-418f-439b-ba0a-fa583b4cba1c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6edf1b08-418f-439b-ba0a-fa583b4cba1c/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d79cb5dae664e13779624ff0ffbc531b419f89e2c7510a92e890992a52ee7c98 [2024-11-08 18:23:51,428 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:23:51,457 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:23:51,460 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:23:51,462 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:23:51,463 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:23:51,464 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6edf1b08-418f-439b-ba0a-fa583b4cba1c/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/weaver/popl20-more-multiply-verify.wvr.c Unable to find full path for "g++" [2024-11-08 18:23:53,545 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:23:53,813 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:23:53,814 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6edf1b08-418f-439b-ba0a-fa583b4cba1c/sv-benchmarks/c/weaver/popl20-more-multiply-verify.wvr.c [2024-11-08 18:23:53,826 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6edf1b08-418f-439b-ba0a-fa583b4cba1c/bin/uautomizer-verify-jihMAELWvX/data/521adbd33/52a75a09819a494ea2f2284a8813de7d/FLAG779dd8718 [2024-11-08 18:23:54,115 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6edf1b08-418f-439b-ba0a-fa583b4cba1c/bin/uautomizer-verify-jihMAELWvX/data/521adbd33/52a75a09819a494ea2f2284a8813de7d [2024-11-08 18:23:54,118 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:23:54,120 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:23:54,121 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:23:54,122 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:23:54,130 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:23:54,131 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:23:54" (1/1) ... [2024-11-08 18:23:54,133 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c8db3f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:23:54, skipping insertion in model container [2024-11-08 18:23:54,133 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:23:54" (1/1) ... [2024-11-08 18:23:54,166 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:23:54,437 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:23:54,449 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:23:54,485 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:23:54,509 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:23:54,509 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:23:54 WrapperNode [2024-11-08 18:23:54,509 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:23:54,510 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:23:54,511 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:23:54,511 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:23:54,519 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:23:54" (1/1) ... [2024-11-08 18:23:54,530 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:23:54" (1/1) ... [2024-11-08 18:23:54,555 INFO L138 Inliner]: procedures = 25, calls = 36, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 186 [2024-11-08 18:23:54,556 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:23:54,557 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:23:54,557 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:23:54,557 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:23:54,572 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:23:54" (1/1) ... [2024-11-08 18:23:54,573 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:23:54" (1/1) ... [2024-11-08 18:23:54,576 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:23:54" (1/1) ... [2024-11-08 18:23:54,595 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]. [2024-11-08 18:23:54,595 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:23:54" (1/1) ... [2024-11-08 18:23:54,595 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:23:54" (1/1) ... [2024-11-08 18:23:54,602 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:23:54" (1/1) ... [2024-11-08 18:23:54,607 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:23:54" (1/1) ... [2024-11-08 18:23:54,609 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:23:54" (1/1) ... [2024-11-08 18:23:54,610 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:23:54" (1/1) ... [2024-11-08 18:23:54,614 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:23:54,615 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:23:54,615 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:23:54,615 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:23:54,616 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:23:54" (1/1) ... [2024-11-08 18:23:54,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:23:54,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6edf1b08-418f-439b-ba0a-fa583b4cba1c/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:23:54,657 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6edf1b08-418f-439b-ba0a-fa583b4cba1c/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:23:54,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6edf1b08-418f-439b-ba0a-fa583b4cba1c/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:23:54,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:23:54,703 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-08 18:23:54,703 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-08 18:23:54,703 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-08 18:23:54,703 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-08 18:23:54,703 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-08 18:23:54,706 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-08 18:23:54,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:23:54,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 18:23:54,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 18:23:54,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 18:23:54,707 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-08 18:23:54,707 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-08 18:23:54,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 18:23:54,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:23:54,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:23:54,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 18:23:54,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 18:23:54,710 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 18:23:54,904 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:23:54,907 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:23:55,329 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 18:23:55,329 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:23:55,748 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:23:55,748 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 18:23:55,749 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:23:55 BoogieIcfgContainer [2024-11-08 18:23:55,749 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:23:55,752 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:23:55,752 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:23:55,756 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:23:55,756 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:23:54" (1/3) ... [2024-11-08 18:23:55,757 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c943ab3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:23:55, skipping insertion in model container [2024-11-08 18:23:55,758 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:23:54" (2/3) ... [2024-11-08 18:23:55,758 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c943ab3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:23:55, skipping insertion in model container [2024-11-08 18:23:55,758 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:23:55" (3/3) ... [2024-11-08 18:23:55,760 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-multiply-verify.wvr.c [2024-11-08 18:23:55,775 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:23:55,776 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-08 18:23:55,776 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 18:23:55,871 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-08 18:23:55,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 62 places, 58 transitions, 137 flow [2024-11-08 18:23:55,957 INFO L124 PetriNetUnfolderBase]: 6/55 cut-off events. [2024-11-08 18:23:55,957 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-08 18:23:55,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 55 events. 6/55 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 146 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2024-11-08 18:23:55,962 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 58 transitions, 137 flow [2024-11-08 18:23:55,966 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 57 places, 53 transitions, 121 flow [2024-11-08 18:23:55,977 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:23:55,985 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;@7b9b86b6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:23:55,986 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-11-08 18:23:55,991 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 18:23:55,991 INFO L124 PetriNetUnfolderBase]: 1/7 cut-off events. [2024-11-08 18:23:55,991 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 18:23:55,992 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:23:55,993 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-08 18:23:55,993 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-08 18:23:55,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:23:55,999 INFO L85 PathProgramCache]: Analyzing trace with hash 17066927, now seen corresponding path program 1 times [2024-11-08 18:23:56,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:23:56,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715437473] [2024-11-08 18:23:56,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:23:56,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:23:56,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:23:56,329 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 18:23:56,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:23:56,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715437473] [2024-11-08 18:23:56,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715437473] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:23:56,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:23:56,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:23:56,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835243553] [2024-11-08 18:23:56,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:23:56,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:23:56,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:23:56,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:23:56,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:23:56,423 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 58 [2024-11-08 18:23:56,426 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 53 transitions, 121 flow. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 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 18:23:56,426 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:23:56,427 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 58 [2024-11-08 18:23:56,428 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:23:56,962 INFO L124 PetriNetUnfolderBase]: 878/1386 cut-off events. [2024-11-08 18:23:56,963 INFO L125 PetriNetUnfolderBase]: For 58/58 co-relation queries the response was YES. [2024-11-08 18:23:56,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2761 conditions, 1386 events. 878/1386 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 7710 event pairs, 723 based on Foata normal form. 1/975 useless extension candidates. Maximal degree in co-relation 2510. Up to 1269 conditions per place. [2024-11-08 18:23:56,987 INFO L140 encePairwiseOnDemand]: 50/58 looper letters, 24 selfloop transitions, 4 changer transitions 0/49 dead transitions. [2024-11-08 18:23:56,988 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 49 transitions, 169 flow [2024-11-08 18:23:56,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:23:56,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 18:23:57,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 128 transitions. [2024-11-08 18:23:57,004 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5517241379310345 [2024-11-08 18:23:57,007 INFO L175 Difference]: Start difference. First operand has 57 places, 53 transitions, 121 flow. Second operand 4 states and 128 transitions. [2024-11-08 18:23:57,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 49 transitions, 169 flow [2024-11-08 18:23:57,020 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 49 transitions, 160 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 18:23:57,023 INFO L231 Difference]: Finished difference. Result has 51 places, 49 transitions, 112 flow [2024-11-08 18:23:57,027 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=112, PETRI_PLACES=51, PETRI_TRANSITIONS=49} [2024-11-08 18:23:57,032 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -6 predicate places. [2024-11-08 18:23:57,032 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 49 transitions, 112 flow [2024-11-08 18:23:57,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 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 18:23:57,033 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:23:57,033 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-08 18:23:57,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:23:57,033 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-08 18:23:57,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:23:57,034 INFO L85 PathProgramCache]: Analyzing trace with hash 529075282, now seen corresponding path program 1 times [2024-11-08 18:23:57,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:23:57,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762880709] [2024-11-08 18:23:57,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:23:57,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:23:57,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:23:57,171 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 18:23:57,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:23:57,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762880709] [2024-11-08 18:23:57,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762880709] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:23:57,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:23:57,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:23:57,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112255870] [2024-11-08 18:23:57,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:23:57,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:23:57,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:23:57,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:23:57,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:23:57,196 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 58 [2024-11-08 18:23:57,197 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 49 transitions, 112 flow. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 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 18:23:57,198 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:23:57,198 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 58 [2024-11-08 18:23:57,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:23:57,528 INFO L124 PetriNetUnfolderBase]: 880/1393 cut-off events. [2024-11-08 18:23:57,528 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-11-08 18:23:57,532 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2734 conditions, 1393 events. 880/1393 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 7750 event pairs, 723 based on Foata normal form. 1/982 useless extension candidates. Maximal degree in co-relation 2700. Up to 1274 conditions per place. [2024-11-08 18:23:57,542 INFO L140 encePairwiseOnDemand]: 53/58 looper letters, 27 selfloop transitions, 4 changer transitions 0/52 dead transitions. [2024-11-08 18:23:57,542 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 52 transitions, 186 flow [2024-11-08 18:23:57,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:23:57,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 18:23:57,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 128 transitions. [2024-11-08 18:23:57,545 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5517241379310345 [2024-11-08 18:23:57,545 INFO L175 Difference]: Start difference. First operand has 51 places, 49 transitions, 112 flow. Second operand 4 states and 128 transitions. [2024-11-08 18:23:57,545 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 52 transitions, 186 flow [2024-11-08 18:23:57,546 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 52 transitions, 172 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-08 18:23:57,550 INFO L231 Difference]: Finished difference. Result has 53 places, 52 transitions, 131 flow [2024-11-08 18:23:57,552 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=131, PETRI_PLACES=53, PETRI_TRANSITIONS=52} [2024-11-08 18:23:57,553 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -4 predicate places. [2024-11-08 18:23:57,553 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 52 transitions, 131 flow [2024-11-08 18:23:57,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 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 18:23:57,554 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:23:57,554 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:23:57,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 18:23:57,554 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-08 18:23:57,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:23:57,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1962576140, now seen corresponding path program 1 times [2024-11-08 18:23:57,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:23:57,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943843907] [2024-11-08 18:23:57,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:23:57,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:23:57,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:23:57,773 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 18:23:57,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:23:57,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943843907] [2024-11-08 18:23:57,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943843907] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:23:57,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:23:57,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:23:57,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910893702] [2024-11-08 18:23:57,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:23:57,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:23:57,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:23:57,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:23:57,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:23:57,794 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 58 [2024-11-08 18:23:57,795 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 52 transitions, 131 flow. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 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) [2024-11-08 18:23:57,796 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:23:57,796 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 58 [2024-11-08 18:23:57,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:23:58,170 INFO L124 PetriNetUnfolderBase]: 887/1470 cut-off events. [2024-11-08 18:23:58,170 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-08 18:23:58,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2850 conditions, 1470 events. 887/1470 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 8166 event pairs, 642 based on Foata normal form. 27/1090 useless extension candidates. Maximal degree in co-relation 2629. Up to 1082 conditions per place. [2024-11-08 18:23:58,183 INFO L140 encePairwiseOnDemand]: 45/58 looper letters, 43 selfloop transitions, 6 changer transitions 0/69 dead transitions. [2024-11-08 18:23:58,183 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 69 transitions, 269 flow [2024-11-08 18:23:58,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:23:58,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-08 18:23:58,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 176 transitions. [2024-11-08 18:23:58,188 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6068965517241379 [2024-11-08 18:23:58,188 INFO L175 Difference]: Start difference. First operand has 53 places, 52 transitions, 131 flow. Second operand 5 states and 176 transitions. [2024-11-08 18:23:58,189 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 69 transitions, 269 flow [2024-11-08 18:23:58,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 69 transitions, 266 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 18:23:58,192 INFO L231 Difference]: Finished difference. Result has 59 places, 55 transitions, 175 flow [2024-11-08 18:23:58,193 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=175, PETRI_PLACES=59, PETRI_TRANSITIONS=55} [2024-11-08 18:23:58,194 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 2 predicate places. [2024-11-08 18:23:58,195 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 55 transitions, 175 flow [2024-11-08 18:23:58,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 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) [2024-11-08 18:23:58,196 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:23:58,196 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1] [2024-11-08 18:23:58,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 18:23:58,197 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-08 18:23:58,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:23:58,198 INFO L85 PathProgramCache]: Analyzing trace with hash -509433095, now seen corresponding path program 1 times [2024-11-08 18:23:58,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:23:58,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970005552] [2024-11-08 18:23:58,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:23:58,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:23:58,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:23:58,308 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:23:58,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:23:58,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970005552] [2024-11-08 18:23:58,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970005552] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:23:58,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1812289887] [2024-11-08 18:23:58,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:23:58,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:23:58,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6edf1b08-418f-439b-ba0a-fa583b4cba1c/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:23:58,314 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6edf1b08-418f-439b-ba0a-fa583b4cba1c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:23:58,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6edf1b08-418f-439b-ba0a-fa583b4cba1c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 18:23:58,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:23:58,405 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 18:23:58,411 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:23:58,468 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:23:58,469 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:23:58,543 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:23:58,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1812289887] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:23:58,544 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:23:58,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-11-08 18:23:58,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664434839] [2024-11-08 18:23:58,545 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:23:58,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:23:58,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:23:58,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:23:58,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:23:58,602 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 58 [2024-11-08 18:23:58,604 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 55 transitions, 175 flow. Second operand has 10 states, 10 states have (on average 25.0) internal successors, (250), 10 states have internal predecessors, (250), 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 18:23:58,604 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:23:58,604 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 58 [2024-11-08 18:23:58,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:23:59,010 INFO L124 PetriNetUnfolderBase]: 887/1455 cut-off events. [2024-11-08 18:23:59,011 INFO L125 PetriNetUnfolderBase]: For 363/363 co-relation queries the response was YES. [2024-11-08 18:23:59,016 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3409 conditions, 1455 events. 887/1455 cut-off events. For 363/363 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 7947 event pairs, 696 based on Foata normal form. 0/1109 useless extension candidates. Maximal degree in co-relation 3122. Up to 1296 conditions per place. [2024-11-08 18:23:59,026 INFO L140 encePairwiseOnDemand]: 53/58 looper letters, 28 selfloop transitions, 13 changer transitions 0/64 dead transitions. [2024-11-08 18:23:59,026 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 64 transitions, 293 flow [2024-11-08 18:23:59,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 18:23:59,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-08 18:23:59,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 283 transitions. [2024-11-08 18:23:59,029 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4879310344827586 [2024-11-08 18:23:59,029 INFO L175 Difference]: Start difference. First operand has 59 places, 55 transitions, 175 flow. Second operand 10 states and 283 transitions. [2024-11-08 18:23:59,029 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 64 transitions, 293 flow [2024-11-08 18:23:59,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 64 transitions, 293 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 18:23:59,033 INFO L231 Difference]: Finished difference. Result has 71 places, 64 transitions, 255 flow [2024-11-08 18:23:59,033 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=255, PETRI_PLACES=71, PETRI_TRANSITIONS=64} [2024-11-08 18:23:59,034 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 14 predicate places. [2024-11-08 18:23:59,034 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 64 transitions, 255 flow [2024-11-08 18:23:59,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 25.0) internal successors, (250), 10 states have internal predecessors, (250), 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 18:23:59,034 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:23:59,035 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:23:59,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6edf1b08-418f-439b-ba0a-fa583b4cba1c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 18:23:59,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6edf1b08-418f-439b-ba0a-fa583b4cba1c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:23:59,240 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-08 18:23:59,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:23:59,240 INFO L85 PathProgramCache]: Analyzing trace with hash -78183485, now seen corresponding path program 1 times [2024-11-08 18:23:59,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:23:59,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88914322] [2024-11-08 18:23:59,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:23:59,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:23:59,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:23:59,303 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 18:23:59,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:23:59,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88914322] [2024-11-08 18:23:59,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88914322] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:23:59,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:23:59,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-08 18:23:59,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522486793] [2024-11-08 18:23:59,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:23:59,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:23:59,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:23:59,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:23:59,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:23:59,307 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 58 [2024-11-08 18:23:59,307 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 64 transitions, 255 flow. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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 18:23:59,307 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:23:59,308 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 58 [2024-11-08 18:23:59,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:23:59,510 INFO L124 PetriNetUnfolderBase]: 785/1297 cut-off events. [2024-11-08 18:23:59,510 INFO L125 PetriNetUnfolderBase]: For 411/411 co-relation queries the response was YES. [2024-11-08 18:23:59,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2998 conditions, 1297 events. 785/1297 cut-off events. For 411/411 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 6983 event pairs, 623 based on Foata normal form. 64/1016 useless extension candidates. Maximal degree in co-relation 2954. Up to 1144 conditions per place. [2024-11-08 18:23:59,526 INFO L140 encePairwiseOnDemand]: 56/58 looper letters, 36 selfloop transitions, 1 changer transitions 3/62 dead transitions. [2024-11-08 18:23:59,526 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 62 transitions, 321 flow [2024-11-08 18:23:59,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:23:59,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:23:59,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 105 transitions. [2024-11-08 18:23:59,528 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.603448275862069 [2024-11-08 18:23:59,528 INFO L175 Difference]: Start difference. First operand has 71 places, 64 transitions, 255 flow. Second operand 3 states and 105 transitions. [2024-11-08 18:23:59,528 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 62 transitions, 321 flow [2024-11-08 18:23:59,530 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 62 transitions, 287 flow, removed 11 selfloop flow, removed 5 redundant places. [2024-11-08 18:23:59,533 INFO L231 Difference]: Finished difference. Result has 67 places, 59 transitions, 196 flow [2024-11-08 18:23:59,533 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=196, PETRI_PLACES=67, PETRI_TRANSITIONS=59} [2024-11-08 18:23:59,534 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 10 predicate places. [2024-11-08 18:23:59,534 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 59 transitions, 196 flow [2024-11-08 18:23:59,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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 18:23:59,534 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:23:59,534 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:23:59,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 18:23:59,535 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-08 18:23:59,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:23:59,536 INFO L85 PathProgramCache]: Analyzing trace with hash 408950021, now seen corresponding path program 1 times [2024-11-08 18:23:59,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:23:59,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522309392] [2024-11-08 18:23:59,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:23:59,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:23:59,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:23:59,741 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:23:59,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:23:59,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522309392] [2024-11-08 18:23:59,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522309392] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:23:59,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [661779490] [2024-11-08 18:23:59,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:23:59,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:23:59,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6edf1b08-418f-439b-ba0a-fa583b4cba1c/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:23:59,744 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6edf1b08-418f-439b-ba0a-fa583b4cba1c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:23:59,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6edf1b08-418f-439b-ba0a-fa583b4cba1c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 18:23:59,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:23:59,832 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 18:23:59,833 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:23:59,870 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 18:23:59,870 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:23:59,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [661779490] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:23:59,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:23:59,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [4] total 5 [2024-11-08 18:23:59,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082983045] [2024-11-08 18:23:59,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:23:59,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:23:59,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:23:59,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:23:59,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:23:59,873 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 58 [2024-11-08 18:23:59,873 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 59 transitions, 196 flow. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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 18:23:59,873 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:23:59,873 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 58 [2024-11-08 18:23:59,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:23:59,994 INFO L124 PetriNetUnfolderBase]: 315/557 cut-off events. [2024-11-08 18:23:59,994 INFO L125 PetriNetUnfolderBase]: For 134/134 co-relation queries the response was YES. [2024-11-08 18:23:59,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1214 conditions, 557 events. 315/557 cut-off events. For 134/134 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2471 event pairs, 234 based on Foata normal form. 0/489 useless extension candidates. Maximal degree in co-relation 1199. Up to 469 conditions per place. [2024-11-08 18:23:59,999 INFO L140 encePairwiseOnDemand]: 53/58 looper letters, 32 selfloop transitions, 1 changer transitions 0/55 dead transitions. [2024-11-08 18:24:00,000 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 55 transitions, 246 flow [2024-11-08 18:24:00,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:24:00,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:24:00,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 104 transitions. [2024-11-08 18:24:00,001 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5977011494252874 [2024-11-08 18:24:00,001 INFO L175 Difference]: Start difference. First operand has 67 places, 59 transitions, 196 flow. Second operand 3 states and 104 transitions. [2024-11-08 18:24:00,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 55 transitions, 246 flow [2024-11-08 18:24:00,003 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 55 transitions, 243 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 18:24:00,004 INFO L231 Difference]: Finished difference. Result has 61 places, 55 transitions, 179 flow [2024-11-08 18:24:00,004 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=177, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=179, PETRI_PLACES=61, PETRI_TRANSITIONS=55} [2024-11-08 18:24:00,005 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 4 predicate places. [2024-11-08 18:24:00,007 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 55 transitions, 179 flow [2024-11-08 18:24:00,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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 18:24:00,007 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:24:00,007 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:24:00,027 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6edf1b08-418f-439b-ba0a-fa583b4cba1c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 18:24:00,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6edf1b08-418f-439b-ba0a-fa583b4cba1c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:24:00,212 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-08 18:24:00,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:24:00,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1627234623, now seen corresponding path program 1 times [2024-11-08 18:24:00,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:24:00,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971937729] [2024-11-08 18:24:00,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:24:00,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:24:00,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:24:00,265 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 18:24:00,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:24:00,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971937729] [2024-11-08 18:24:00,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971937729] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:24:00,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:24:00,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:24:00,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289527240] [2024-11-08 18:24:00,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:24:00,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:24:00,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:24:00,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:24:00,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:24:00,276 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 58 [2024-11-08 18:24:00,276 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 55 transitions, 179 flow. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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 18:24:00,277 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:24:00,277 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 58 [2024-11-08 18:24:00,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:24:00,389 INFO L124 PetriNetUnfolderBase]: 258/534 cut-off events. [2024-11-08 18:24:00,389 INFO L125 PetriNetUnfolderBase]: For 102/102 co-relation queries the response was YES. [2024-11-08 18:24:00,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1095 conditions, 534 events. 258/534 cut-off events. For 102/102 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2443 event pairs, 79 based on Foata normal form. 8/491 useless extension candidates. Maximal degree in co-relation 1080. Up to 330 conditions per place. [2024-11-08 18:24:00,393 INFO L140 encePairwiseOnDemand]: 54/58 looper letters, 41 selfloop transitions, 3 changer transitions 0/66 dead transitions. [2024-11-08 18:24:00,393 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 66 transitions, 296 flow [2024-11-08 18:24:00,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:24:00,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:24:00,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 112 transitions. [2024-11-08 18:24:00,395 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6436781609195402 [2024-11-08 18:24:00,395 INFO L175 Difference]: Start difference. First operand has 61 places, 55 transitions, 179 flow. Second operand 3 states and 112 transitions. [2024-11-08 18:24:00,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 66 transitions, 296 flow [2024-11-08 18:24:00,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 66 transitions, 295 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 18:24:00,397 INFO L231 Difference]: Finished difference. Result has 63 places, 57 transitions, 201 flow [2024-11-08 18:24:00,397 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=201, PETRI_PLACES=63, PETRI_TRANSITIONS=57} [2024-11-08 18:24:00,398 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 6 predicate places. [2024-11-08 18:24:00,398 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 57 transitions, 201 flow [2024-11-08 18:24:00,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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 18:24:00,399 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:24:00,399 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] [2024-11-08 18:24:00,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 18:24:00,399 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-08 18:24:00,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:24:00,399 INFO L85 PathProgramCache]: Analyzing trace with hash -2007741323, now seen corresponding path program 1 times [2024-11-08 18:24:00,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:24:00,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209470886] [2024-11-08 18:24:00,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:24:00,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:24:00,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:24:00,483 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 18:24:00,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:24:00,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209470886] [2024-11-08 18:24:00,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209470886] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:24:00,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:24:00,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-08 18:24:00,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974455840] [2024-11-08 18:24:00,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:24:00,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:24:00,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:24:00,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:24:00,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:24:00,492 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 58 [2024-11-08 18:24:00,492 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 57 transitions, 201 flow. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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 18:24:00,493 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:24:00,493 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 58 [2024-11-08 18:24:00,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:24:00,626 INFO L124 PetriNetUnfolderBase]: 320/549 cut-off events. [2024-11-08 18:24:00,627 INFO L125 PetriNetUnfolderBase]: For 298/298 co-relation queries the response was YES. [2024-11-08 18:24:00,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1320 conditions, 549 events. 320/549 cut-off events. For 298/298 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2350 event pairs, 226 based on Foata normal form. 18/483 useless extension candidates. Maximal degree in co-relation 1303. Up to 487 conditions per place. [2024-11-08 18:24:00,634 INFO L140 encePairwiseOnDemand]: 56/58 looper letters, 35 selfloop transitions, 1 changer transitions 0/56 dead transitions. [2024-11-08 18:24:00,634 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 56 transitions, 271 flow [2024-11-08 18:24:00,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:24:00,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:24:00,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 96 transitions. [2024-11-08 18:24:00,635 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5517241379310345 [2024-11-08 18:24:00,635 INFO L175 Difference]: Start difference. First operand has 63 places, 57 transitions, 201 flow. Second operand 3 states and 96 transitions. [2024-11-08 18:24:00,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 56 transitions, 271 flow [2024-11-08 18:24:00,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 56 transitions, 258 flow, removed 5 selfloop flow, removed 2 redundant places. [2024-11-08 18:24:00,638 INFO L231 Difference]: Finished difference. Result has 62 places, 56 transitions, 188 flow [2024-11-08 18:24:00,638 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=188, PETRI_PLACES=62, PETRI_TRANSITIONS=56} [2024-11-08 18:24:00,639 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 5 predicate places. [2024-11-08 18:24:00,639 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 56 transitions, 188 flow [2024-11-08 18:24:00,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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 18:24:00,639 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:24:00,639 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 4, 1, 1] [2024-11-08 18:24:00,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 18:24:00,640 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-08 18:24:00,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:24:00,640 INFO L85 PathProgramCache]: Analyzing trace with hash 323256814, now seen corresponding path program 2 times [2024-11-08 18:24:00,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:24:00,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605592422] [2024-11-08 18:24:00,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:24:00,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:24:00,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:24:00,856 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:24:00,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:24:00,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605592422] [2024-11-08 18:24:00,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605592422] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:24:00,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [521747344] [2024-11-08 18:24:00,856 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 18:24:00,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:24:00,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6edf1b08-418f-439b-ba0a-fa583b4cba1c/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:24:00,863 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6edf1b08-418f-439b-ba0a-fa583b4cba1c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:24:00,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6edf1b08-418f-439b-ba0a-fa583b4cba1c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 18:24:00,953 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-08 18:24:00,954 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 18:24:00,955 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 18:24:00,956 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:24:01,061 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-08 18:24:01,061 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:24:01,134 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-08 18:24:01,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [521747344] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:24:01,134 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:24:01,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 3, 3] total 13 [2024-11-08 18:24:01,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91825991] [2024-11-08 18:24:01,135 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:24:01,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-08 18:24:01,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:24:01,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-08 18:24:01,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-11-08 18:24:01,182 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 58 [2024-11-08 18:24:01,183 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 56 transitions, 188 flow. Second operand has 15 states, 15 states have (on average 22.533333333333335) internal successors, (338), 15 states have internal predecessors, (338), 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 18:24:01,183 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:24:01,183 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 58 [2024-11-08 18:24:01,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:24:01,549 INFO L124 PetriNetUnfolderBase]: 262/473 cut-off events. [2024-11-08 18:24:01,549 INFO L125 PetriNetUnfolderBase]: For 116/116 co-relation queries the response was YES. [2024-11-08 18:24:01,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1062 conditions, 473 events. 262/473 cut-off events. For 116/116 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1976 event pairs, 178 based on Foata normal form. 2/420 useless extension candidates. Maximal degree in co-relation 1045. Up to 389 conditions per place. [2024-11-08 18:24:01,553 INFO L140 encePairwiseOnDemand]: 52/58 looper letters, 37 selfloop transitions, 20 changer transitions 0/74 dead transitions. [2024-11-08 18:24:01,554 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 74 transitions, 358 flow [2024-11-08 18:24:01,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 18:24:01,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-08 18:24:01,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 372 transitions. [2024-11-08 18:24:01,556 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42758620689655175 [2024-11-08 18:24:01,556 INFO L175 Difference]: Start difference. First operand has 62 places, 56 transitions, 188 flow. Second operand 15 states and 372 transitions. [2024-11-08 18:24:01,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 74 transitions, 358 flow [2024-11-08 18:24:01,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 74 transitions, 345 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-11-08 18:24:01,559 INFO L231 Difference]: Finished difference. Result has 71 places, 60 transitions, 230 flow [2024-11-08 18:24:01,560 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=230, PETRI_PLACES=71, PETRI_TRANSITIONS=60} [2024-11-08 18:24:01,561 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 14 predicate places. [2024-11-08 18:24:01,562 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 60 transitions, 230 flow [2024-11-08 18:24:01,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 22.533333333333335) internal successors, (338), 15 states have internal predecessors, (338), 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 18:24:01,562 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:24:01,562 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] [2024-11-08 18:24:01,585 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6edf1b08-418f-439b-ba0a-fa583b4cba1c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-08 18:24:01,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6edf1b08-418f-439b-ba0a-fa583b4cba1c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:24:01,767 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-08 18:24:01,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:24:01,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1610619035, now seen corresponding path program 1 times [2024-11-08 18:24:01,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:24:01,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588317833] [2024-11-08 18:24:01,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:24:01,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:24:01,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:24:01,813 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 18:24:01,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:24:01,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588317833] [2024-11-08 18:24:01,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588317833] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:24:01,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:24:01,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:24:01,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247542041] [2024-11-08 18:24:01,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:24:01,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:24:01,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:24:01,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:24:01,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:24:01,821 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 58 [2024-11-08 18:24:01,822 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 60 transitions, 230 flow. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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 18:24:01,822 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:24:01,822 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 58 [2024-11-08 18:24:01,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:24:01,941 INFO L124 PetriNetUnfolderBase]: 262/516 cut-off events. [2024-11-08 18:24:01,941 INFO L125 PetriNetUnfolderBase]: For 140/140 co-relation queries the response was YES. [2024-11-08 18:24:01,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1106 conditions, 516 events. 262/516 cut-off events. For 140/140 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2187 event pairs, 82 based on Foata normal form. 0/479 useless extension candidates. Maximal degree in co-relation 1091. Up to 222 conditions per place. [2024-11-08 18:24:01,943 INFO L140 encePairwiseOnDemand]: 56/58 looper letters, 0 selfloop transitions, 0 changer transitions 70/70 dead transitions. [2024-11-08 18:24:01,943 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 70 transitions, 356 flow [2024-11-08 18:24:01,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:24:01,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:24:01,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 106 transitions. [2024-11-08 18:24:01,944 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6091954022988506 [2024-11-08 18:24:01,945 INFO L175 Difference]: Start difference. First operand has 71 places, 60 transitions, 230 flow. Second operand 3 states and 106 transitions. [2024-11-08 18:24:01,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 70 transitions, 356 flow [2024-11-08 18:24:01,946 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 70 transitions, 311 flow, removed 7 selfloop flow, removed 10 redundant places. [2024-11-08 18:24:01,946 INFO L231 Difference]: Finished difference. Result has 62 places, 0 transitions, 0 flow [2024-11-08 18:24:01,946 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=183, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=62, PETRI_TRANSITIONS=0} [2024-11-08 18:24:01,947 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 5 predicate places. [2024-11-08 18:24:01,947 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 0 transitions, 0 flow [2024-11-08 18:24:01,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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 18:24:01,950 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 25 remaining) [2024-11-08 18:24:01,951 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 25 remaining) [2024-11-08 18:24:01,951 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 25 remaining) [2024-11-08 18:24:01,951 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 25 remaining) [2024-11-08 18:24:01,951 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 25 remaining) [2024-11-08 18:24:01,951 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 25 remaining) [2024-11-08 18:24:01,951 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 25 remaining) [2024-11-08 18:24:01,951 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 25 remaining) [2024-11-08 18:24:01,952 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 25 remaining) [2024-11-08 18:24:01,952 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 25 remaining) [2024-11-08 18:24:01,952 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 25 remaining) [2024-11-08 18:24:01,952 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 25 remaining) [2024-11-08 18:24:01,952 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 25 remaining) [2024-11-08 18:24:01,959 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 25 remaining) [2024-11-08 18:24:01,959 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 25 remaining) [2024-11-08 18:24:01,960 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 25 remaining) [2024-11-08 18:24:01,960 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 25 remaining) [2024-11-08 18:24:01,960 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 25 remaining) [2024-11-08 18:24:01,960 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 25 remaining) [2024-11-08 18:24:01,960 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 25 remaining) [2024-11-08 18:24:01,960 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 25 remaining) [2024-11-08 18:24:01,960 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 25 remaining) [2024-11-08 18:24:01,961 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 25 remaining) [2024-11-08 18:24:01,961 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 25 remaining) [2024-11-08 18:24:01,961 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 25 remaining) [2024-11-08 18:24:01,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 18:24:01,961 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:24:01,967 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-08 18:24:01,967 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 18:24:01,973 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 06:24:01 BasicIcfg [2024-11-08 18:24:01,973 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 18:24:01,974 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 18:24:01,974 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 18:24:01,974 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 18:24:01,975 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:23:55" (3/4) ... [2024-11-08 18:24:01,977 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 18:24:01,980 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-08 18:24:01,980 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-08 18:24:01,980 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-11-08 18:24:01,985 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 90 nodes and edges [2024-11-08 18:24:01,985 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2024-11-08 18:24:01,986 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-08 18:24:01,986 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-08 18:24:02,079 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6edf1b08-418f-439b-ba0a-fa583b4cba1c/bin/uautomizer-verify-jihMAELWvX/witness.graphml [2024-11-08 18:24:02,079 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6edf1b08-418f-439b-ba0a-fa583b4cba1c/bin/uautomizer-verify-jihMAELWvX/witness.yml [2024-11-08 18:24:02,079 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 18:24:02,080 INFO L158 Benchmark]: Toolchain (without parser) took 7960.12ms. Allocated memory was 155.2MB in the beginning and 230.7MB in the end (delta: 75.5MB). Free memory was 120.6MB in the beginning and 190.7MB in the end (delta: -70.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-08 18:24:02,080 INFO L158 Benchmark]: CDTParser took 1.33ms. Allocated memory is still 155.2MB. Free memory is still 122.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:24:02,080 INFO L158 Benchmark]: CACSL2BoogieTranslator took 388.26ms. Allocated memory is still 155.2MB. Free memory was 120.6MB in the beginning and 106.8MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 18:24:02,081 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.52ms. Allocated memory is still 155.2MB. Free memory was 106.8MB in the beginning and 104.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:24:02,081 INFO L158 Benchmark]: Boogie Preprocessor took 57.49ms. Allocated memory is still 155.2MB. Free memory was 104.7MB in the beginning and 102.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:24:02,081 INFO L158 Benchmark]: RCFGBuilder took 1134.45ms. Allocated memory was 155.2MB in the beginning and 190.8MB in the end (delta: 35.7MB). Free memory was 102.1MB in the beginning and 152.8MB in the end (delta: -50.6MB). Peak memory consumption was 57.9MB. Max. memory is 16.1GB. [2024-11-08 18:24:02,082 INFO L158 Benchmark]: TraceAbstraction took 6221.58ms. Allocated memory was 190.8MB in the beginning and 230.7MB in the end (delta: 39.8MB). Free memory was 152.8MB in the beginning and 196.0MB in the end (delta: -43.2MB). Peak memory consumption was 133.0MB. Max. memory is 16.1GB. [2024-11-08 18:24:02,082 INFO L158 Benchmark]: Witness Printer took 105.38ms. Allocated memory is still 230.7MB. Free memory was 196.0MB in the beginning and 190.7MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-08 18:24:02,084 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.33ms. Allocated memory is still 155.2MB. Free memory is still 122.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 388.26ms. Allocated memory is still 155.2MB. Free memory was 120.6MB in the beginning and 106.8MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.52ms. Allocated memory is still 155.2MB. Free memory was 106.8MB in the beginning and 104.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.49ms. Allocated memory is still 155.2MB. Free memory was 104.7MB in the beginning and 102.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1134.45ms. Allocated memory was 155.2MB in the beginning and 190.8MB in the end (delta: 35.7MB). Free memory was 102.1MB in the beginning and 152.8MB in the end (delta: -50.6MB). Peak memory consumption was 57.9MB. Max. memory is 16.1GB. * TraceAbstraction took 6221.58ms. Allocated memory was 190.8MB in the beginning and 230.7MB in the end (delta: 39.8MB). Free memory was 152.8MB in the beginning and 196.0MB in the end (delta: -43.2MB). Peak memory consumption was 133.0MB. Max. memory is 16.1GB. * Witness Printer took 105.38ms. Allocated memory is still 230.7MB. Free memory was 196.0MB in the beginning and 190.7MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 59]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 59]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 75]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 75]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 120]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 120]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 90 locations, 25 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: 6.1s, OverallIterations: 10, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 244 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 188 mSDsluCounter, 73 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 55 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 851 IncrementalHoareTripleChecker+Invalid, 876 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 18 mSDtfsCounter, 851 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 59 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=255occurred in iteration=4, InterpolantAutomatonStates: 53, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 168 NumberOfCodeBlocks, 152 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 183 ConstructedInterpolants, 0 QuantifiedInterpolants, 573 SizeOfPredicates, 7 NumberOfNonLiveVariables, 238 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 15 InterpolantComputations, 8 PerfectInterpolantSequences, 60/137 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 12 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-08 18:24:02,107 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6edf1b08-418f-439b-ba0a-fa583b4cba1c/bin/uautomizer-verify-jihMAELWvX/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