./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f047764-8265-4d29-9da5-c5eaa7b30cdc/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f047764-8265-4d29-9da5-c5eaa7b30cdc/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f047764-8265-4d29-9da5-c5eaa7b30cdc/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f047764-8265-4d29-9da5-c5eaa7b30cdc/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f047764-8265-4d29-9da5-c5eaa7b30cdc/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f047764-8265-4d29-9da5-c5eaa7b30cdc/bin/uautomizer-verify-BQ2R08f2Ya --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 b1e99af7c76570461a4b0ac70d664412f250ec04f47fd9ca8c0f85236f1348c6 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 01:43:33,672 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 01:43:33,743 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f047764-8265-4d29-9da5-c5eaa7b30cdc/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 01:43:33,749 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 01:43:33,750 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 01:43:33,778 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 01:43:33,778 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 01:43:33,779 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 01:43:33,780 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 01:43:33,780 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 01:43:33,781 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 01:43:33,781 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 01:43:33,782 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 01:43:33,783 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 01:43:33,783 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 01:43:33,784 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 01:43:33,784 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 01:43:33,785 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 01:43:33,785 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 01:43:33,786 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 01:43:33,787 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 01:43:33,789 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 01:43:33,790 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 01:43:33,790 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 01:43:33,791 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 01:43:33,791 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 01:43:33,791 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 01:43:33,792 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 01:43:33,792 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 01:43:33,793 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 01:43:33,793 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 01:43:33,793 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 01:43:33,794 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 01:43:33,794 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:43:33,794 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 01:43:33,794 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 01:43:33,795 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 01:43:33,795 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 01:43:33,795 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 01:43:33,795 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 01:43:33,796 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 01:43:33,796 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 01:43:33,796 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 01:43:33,796 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 01:43:33,797 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_1f047764-8265-4d29-9da5-c5eaa7b30cdc/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f047764-8265-4d29-9da5-c5eaa7b30cdc/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1e99af7c76570461a4b0ac70d664412f250ec04f47fd9ca8c0f85236f1348c6 [2023-11-29 01:43:34,031 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 01:43:34,052 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 01:43:34,054 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 01:43:34,055 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 01:43:34,056 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 01:43:34,057 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f047764-8265-4d29-9da5-c5eaa7b30cdc/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c [2023-11-29 01:43:36,897 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 01:43:37,092 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 01:43:37,093 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f047764-8265-4d29-9da5-c5eaa7b30cdc/sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c [2023-11-29 01:43:37,103 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f047764-8265-4d29-9da5-c5eaa7b30cdc/bin/uautomizer-verify-BQ2R08f2Ya/data/3948171c3/e5ad204b1f2e47e488c2c8348c1ab5c4/FLAG2b8e6fe61 [2023-11-29 01:43:37,121 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f047764-8265-4d29-9da5-c5eaa7b30cdc/bin/uautomizer-verify-BQ2R08f2Ya/data/3948171c3/e5ad204b1f2e47e488c2c8348c1ab5c4 [2023-11-29 01:43:37,124 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 01:43:37,126 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 01:43:37,127 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 01:43:37,128 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 01:43:37,134 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 01:43:37,135 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:43:37" (1/1) ... [2023-11-29 01:43:37,136 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69d961de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:43:37, skipping insertion in model container [2023-11-29 01:43:37,136 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:43:37" (1/1) ... [2023-11-29 01:43:37,170 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 01:43:37,391 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:43:37,402 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 01:43:37,439 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:43:37,448 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 01:43:37,449 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 01:43:37,457 INFO L206 MainTranslator]: Completed translation [2023-11-29 01:43:37,458 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:43:37 WrapperNode [2023-11-29 01:43:37,458 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 01:43:37,459 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 01:43:37,459 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 01:43:37,460 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 01:43:37,468 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:43:37" (1/1) ... [2023-11-29 01:43:37,481 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:43:37" (1/1) ... [2023-11-29 01:43:37,522 INFO L138 Inliner]: procedures = 27, calls = 69, calls flagged for inlining = 19, calls inlined = 25, statements flattened = 385 [2023-11-29 01:43:37,523 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 01:43:37,524 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 01:43:37,524 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 01:43:37,524 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 01:43:37,538 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:43:37" (1/1) ... [2023-11-29 01:43:37,538 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:43:37" (1/1) ... [2023-11-29 01:43:37,545 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:43:37" (1/1) ... [2023-11-29 01:43:37,567 INFO L175 MemorySlicer]: Split 15 memory accesses to 6 slices as follows [2, 2, 2, 2, 2, 5]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0]. The 5 writes are split as follows [0, 1, 1, 1, 1, 1]. [2023-11-29 01:43:37,567 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:43:37" (1/1) ... [2023-11-29 01:43:37,568 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:43:37" (1/1) ... [2023-11-29 01:43:37,583 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:43:37" (1/1) ... [2023-11-29 01:43:37,590 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:43:37" (1/1) ... [2023-11-29 01:43:37,593 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:43:37" (1/1) ... [2023-11-29 01:43:37,596 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:43:37" (1/1) ... [2023-11-29 01:43:37,602 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 01:43:37,603 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 01:43:37,603 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 01:43:37,603 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 01:43:37,604 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:43:37" (1/1) ... [2023-11-29 01:43:37,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:43:37,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f047764-8265-4d29-9da5-c5eaa7b30cdc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:43:37,639 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f047764-8265-4d29-9da5-c5eaa7b30cdc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 01:43:37,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f047764-8265-4d29-9da5-c5eaa7b30cdc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 01:43:37,675 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 01:43:37,675 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 01:43:37,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 01:43:37,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 01:43:37,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 01:43:37,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-29 01:43:37,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-29 01:43:37,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-29 01:43:37,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 01:43:37,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 01:43:37,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 01:43:37,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-29 01:43:37,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-29 01:43:37,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-29 01:43:37,678 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-29 01:43:37,678 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-29 01:43:37,678 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-29 01:43:37,678 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-29 01:43:37,678 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-29 01:43:37,679 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-29 01:43:37,679 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-29 01:43:37,679 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-29 01:43:37,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 01:43:37,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 01:43:37,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 01:43:37,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 01:43:37,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-29 01:43:37,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-29 01:43:37,680 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-29 01:43:37,680 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-29 01:43:37,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 01:43:37,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 01:43:37,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 01:43:37,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 01:43:37,682 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 01:43:37,863 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 01:43:37,865 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 01:43:38,420 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 01:43:39,069 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 01:43:39,070 INFO L309 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-29 01:43:39,070 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:43:39 BoogieIcfgContainer [2023-11-29 01:43:39,070 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 01:43:39,073 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 01:43:39,073 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 01:43:39,076 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 01:43:39,077 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 01:43:37" (1/3) ... [2023-11-29 01:43:39,077 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3560451a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:43:39, skipping insertion in model container [2023-11-29 01:43:39,077 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:43:37" (2/3) ... [2023-11-29 01:43:39,078 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3560451a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:43:39, skipping insertion in model container [2023-11-29 01:43:39,078 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:43:39" (3/3) ... [2023-11-29 01:43:39,079 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-1.wvr.c [2023-11-29 01:43:39,090 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-29 01:43:39,103 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 01:43:39,103 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2023-11-29 01:43:39,103 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 01:43:39,283 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-29 01:43:39,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 99 places, 95 transitions, 218 flow [2023-11-29 01:43:39,383 INFO L124 PetriNetUnfolderBase]: 9/91 cut-off events. [2023-11-29 01:43:39,383 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-29 01:43:39,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 91 events. 9/91 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 283 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 77. Up to 2 conditions per place. [2023-11-29 01:43:39,390 INFO L82 GeneralOperation]: Start removeDead. Operand has 99 places, 95 transitions, 218 flow [2023-11-29 01:43:39,397 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 93 places, 89 transitions, 199 flow [2023-11-29 01:43:39,409 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 01:43:39,417 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@f12cafd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 01:43:39,417 INFO L358 AbstractCegarLoop]: Starting to check reachability of 72 error locations. [2023-11-29 01:43:39,420 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 01:43:39,420 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2023-11-29 01:43:39,420 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 01:43:39,421 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:43:39,421 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-29 01:43:39,422 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-11-29 01:43:39,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:43:39,428 INFO L85 PathProgramCache]: Analyzing trace with hash 38746, now seen corresponding path program 1 times [2023-11-29 01:43:39,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:43:39,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131312555] [2023-11-29 01:43:39,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:43:39,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:43:39,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:43:39,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:43:39,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:43:39,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131312555] [2023-11-29 01:43:39,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131312555] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:43:39,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:43:39,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 01:43:39,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725830626] [2023-11-29 01:43:39,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:43:39,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:43:39,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:43:39,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:43:39,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:43:39,734 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 95 [2023-11-29 01:43:39,737 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 89 transitions, 199 flow. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:43:39,737 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:43:39,737 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 95 [2023-11-29 01:43:39,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:44:04,416 INFO L124 PetriNetUnfolderBase]: 180934/234780 cut-off events. [2023-11-29 01:44:04,417 INFO L125 PetriNetUnfolderBase]: For 6888/6888 co-relation queries the response was YES. [2023-11-29 01:44:04,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 470110 conditions, 234780 events. 180934/234780 cut-off events. For 6888/6888 co-relation queries the response was YES. Maximal size of possible extension queue 14203. Compared 1578518 event pairs, 149948 based on Foata normal form. 30639/139850 useless extension candidates. Maximal degree in co-relation 436900. Up to 229670 conditions per place. [2023-11-29 01:44:05,937 INFO L140 encePairwiseOnDemand]: 81/95 looper letters, 63 selfloop transitions, 1 changer transitions 0/76 dead transitions. [2023-11-29 01:44:05,937 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 76 transitions, 301 flow [2023-11-29 01:44:05,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:44:05,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 01:44:05,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 125 transitions. [2023-11-29 01:44:05,950 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43859649122807015 [2023-11-29 01:44:05,951 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 125 transitions. [2023-11-29 01:44:05,952 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 125 transitions. [2023-11-29 01:44:05,953 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:44:05,956 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 125 transitions. [2023-11-29 01:44:05,959 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:44:05,963 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:44:05,964 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:44:05,965 INFO L175 Difference]: Start difference. First operand has 93 places, 89 transitions, 199 flow. Second operand 3 states and 125 transitions. [2023-11-29 01:44:05,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 76 transitions, 301 flow [2023-11-29 01:44:06,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 76 transitions, 288 flow, removed 0 selfloop flow, removed 7 redundant places. [2023-11-29 01:44:06,287 INFO L231 Difference]: Finished difference. Result has 79 places, 76 transitions, 162 flow [2023-11-29 01:44:06,290 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=162, PETRI_PLACES=79, PETRI_TRANSITIONS=76} [2023-11-29 01:44:06,294 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, -14 predicate places. [2023-11-29 01:44:06,294 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 76 transitions, 162 flow [2023-11-29 01:44:06,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:44:06,295 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:44:06,295 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-29 01:44:06,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 01:44:06,296 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-11-29 01:44:06,296 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:44:06,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1202341, now seen corresponding path program 1 times [2023-11-29 01:44:06,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:44:06,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37507288] [2023-11-29 01:44:06,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:44:06,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:44:06,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:44:06,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:44:06,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:44:06,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37507288] [2023-11-29 01:44:06,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37507288] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:44:06,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:44:06,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 01:44:06,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123139778] [2023-11-29 01:44:06,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:44:06,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:44:06,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:44:06,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:44:06,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:44:06,388 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 95 [2023-11-29 01:44:06,389 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 76 transitions, 162 flow. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:44:06,389 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:44:06,389 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 95 [2023-11-29 01:44:06,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:44:20,517 INFO L124 PetriNetUnfolderBase]: 130284/169260 cut-off events. [2023-11-29 01:44:20,517 INFO L125 PetriNetUnfolderBase]: For 1232/1232 co-relation queries the response was YES. [2023-11-29 01:44:20,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 337261 conditions, 169260 events. 130284/169260 cut-off events. For 1232/1232 co-relation queries the response was YES. Maximal size of possible extension queue 10371. Compared 1109304 event pairs, 106155 based on Foata normal form. 0/83607 useless extension candidates. Maximal degree in co-relation 337255. Up to 165202 conditions per place. [2023-11-29 01:44:21,342 INFO L140 encePairwiseOnDemand]: 89/95 looper letters, 58 selfloop transitions, 1 changer transitions 0/71 dead transitions. [2023-11-29 01:44:21,342 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 71 transitions, 270 flow [2023-11-29 01:44:21,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:44:21,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 01:44:21,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 112 transitions. [2023-11-29 01:44:21,344 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3929824561403509 [2023-11-29 01:44:21,344 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 112 transitions. [2023-11-29 01:44:21,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 112 transitions. [2023-11-29 01:44:21,345 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:44:21,345 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 112 transitions. [2023-11-29 01:44:21,346 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:44:21,347 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:44:21,348 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:44:21,348 INFO L175 Difference]: Start difference. First operand has 79 places, 76 transitions, 162 flow. Second operand 3 states and 112 transitions. [2023-11-29 01:44:21,348 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 71 transitions, 270 flow [2023-11-29 01:44:21,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 71 transitions, 269 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 01:44:21,351 INFO L231 Difference]: Finished difference. Result has 75 places, 71 transitions, 153 flow [2023-11-29 01:44:21,351 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=153, PETRI_PLACES=75, PETRI_TRANSITIONS=71} [2023-11-29 01:44:21,352 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, -18 predicate places. [2023-11-29 01:44:21,352 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 71 transitions, 153 flow [2023-11-29 01:44:21,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:44:21,353 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:44:21,353 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-29 01:44:21,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 01:44:21,353 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-11-29 01:44:21,354 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:44:21,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1155489437, now seen corresponding path program 1 times [2023-11-29 01:44:21,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:44:21,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394037262] [2023-11-29 01:44:21,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:44:21,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:44:21,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:44:21,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:44:21,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:44:21,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394037262] [2023-11-29 01:44:21,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394037262] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:44:21,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:44:21,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:44:21,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749061806] [2023-11-29 01:44:21,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:44:21,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:44:21,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:44:21,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:44:21,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:44:21,458 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 95 [2023-11-29 01:44:21,458 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 71 transitions, 153 flow. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:44:21,458 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:44:21,459 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 95 [2023-11-29 01:44:21,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:44:36,370 INFO L124 PetriNetUnfolderBase]: 130285/169264 cut-off events. [2023-11-29 01:44:36,370 INFO L125 PetriNetUnfolderBase]: For 1232/1232 co-relation queries the response was YES. [2023-11-29 01:44:36,664 INFO L83 FinitePrefix]: Finished finitePrefix Result has 337271 conditions, 169264 events. 130285/169264 cut-off events. For 1232/1232 co-relation queries the response was YES. Maximal size of possible extension queue 10371. Compared 1109203 event pairs, 106155 based on Foata normal form. 1/83611 useless extension candidates. Maximal degree in co-relation 337264. Up to 165206 conditions per place. [2023-11-29 01:44:37,265 INFO L140 encePairwiseOnDemand]: 89/95 looper letters, 60 selfloop transitions, 4 changer transitions 0/74 dead transitions. [2023-11-29 01:44:37,265 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 74 transitions, 287 flow [2023-11-29 01:44:37,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:44:37,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 01:44:37,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 130 transitions. [2023-11-29 01:44:37,267 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.34210526315789475 [2023-11-29 01:44:37,267 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 130 transitions. [2023-11-29 01:44:37,267 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 130 transitions. [2023-11-29 01:44:37,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:44:37,268 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 130 transitions. [2023-11-29 01:44:37,268 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:44:37,270 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 95.0) internal successors, (475), 5 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:44:37,270 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 95.0) internal successors, (475), 5 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:44:37,271 INFO L175 Difference]: Start difference. First operand has 75 places, 71 transitions, 153 flow. Second operand 4 states and 130 transitions. [2023-11-29 01:44:37,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 74 transitions, 287 flow [2023-11-29 01:44:37,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 74 transitions, 286 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 01:44:37,274 INFO L231 Difference]: Finished difference. Result has 79 places, 74 transitions, 181 flow [2023-11-29 01:44:37,274 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=181, PETRI_PLACES=79, PETRI_TRANSITIONS=74} [2023-11-29 01:44:37,275 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, -14 predicate places. [2023-11-29 01:44:37,275 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 74 transitions, 181 flow [2023-11-29 01:44:37,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:44:37,276 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:44:37,276 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2023-11-29 01:44:37,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 01:44:37,276 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-11-29 01:44:37,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:44:37,277 INFO L85 PathProgramCache]: Analyzing trace with hash -975836085, now seen corresponding path program 1 times [2023-11-29 01:44:37,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:44:37,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665549691] [2023-11-29 01:44:37,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:44:37,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:44:37,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:44:37,382 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:44:37,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:44:37,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665549691] [2023-11-29 01:44:37,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665549691] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:44:37,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1767581581] [2023-11-29 01:44:37,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:44:37,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:44:37,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f047764-8265-4d29-9da5-c5eaa7b30cdc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:44:37,387 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f047764-8265-4d29-9da5-c5eaa7b30cdc/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:44:37,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f047764-8265-4d29-9da5-c5eaa7b30cdc/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 01:44:37,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:44:37,545 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:44:37,548 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:44:37,594 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:44:37,594 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:44:37,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1767581581] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:44:37,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:44:37,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-29 01:44:37,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231512144] [2023-11-29 01:44:37,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:44:37,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:44:37,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:44:37,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:44:37,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:44:37,604 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 95 [2023-11-29 01:44:37,604 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 74 transitions, 181 flow. Second operand has 6 states, 6 states have (on average 17.0) internal successors, (102), 6 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:44:37,605 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:44:37,605 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 95 [2023-11-29 01:44:37,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:44:53,451 INFO L124 PetriNetUnfolderBase]: 130285/169263 cut-off events. [2023-11-29 01:44:53,451 INFO L125 PetriNetUnfolderBase]: For 1237/1237 co-relation queries the response was YES. [2023-11-29 01:44:53,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 337282 conditions, 169263 events. 130285/169263 cut-off events. For 1237/1237 co-relation queries the response was YES. Maximal size of possible extension queue 10370. Compared 1108852 event pairs, 106155 based on Foata normal form. 1/83611 useless extension candidates. Maximal degree in co-relation 337273. Up to 165201 conditions per place. [2023-11-29 01:44:54,447 INFO L140 encePairwiseOnDemand]: 90/95 looper letters, 56 selfloop transitions, 7 changer transitions 0/73 dead transitions. [2023-11-29 01:44:54,447 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 73 transitions, 303 flow [2023-11-29 01:44:54,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:44:54,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 01:44:54,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 160 transitions. [2023-11-29 01:44:54,449 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2807017543859649 [2023-11-29 01:44:54,449 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 160 transitions. [2023-11-29 01:44:54,449 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 160 transitions. [2023-11-29 01:44:54,449 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:44:54,449 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 160 transitions. [2023-11-29 01:44:54,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:44:54,452 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 95.0) internal successors, (665), 7 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:44:54,452 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 95.0) internal successors, (665), 7 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:44:54,452 INFO L175 Difference]: Start difference. First operand has 79 places, 74 transitions, 181 flow. Second operand 6 states and 160 transitions. [2023-11-29 01:44:54,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 73 transitions, 303 flow [2023-11-29 01:44:54,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 73 transitions, 300 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 01:44:54,455 INFO L231 Difference]: Finished difference. Result has 82 places, 73 transitions, 188 flow [2023-11-29 01:44:54,455 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=188, PETRI_PLACES=82, PETRI_TRANSITIONS=73} [2023-11-29 01:44:54,456 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, -11 predicate places. [2023-11-29 01:44:54,456 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 73 transitions, 188 flow [2023-11-29 01:44:54,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.0) internal successors, (102), 6 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:44:54,456 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:44:54,456 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:44:54,465 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f047764-8265-4d29-9da5-c5eaa7b30cdc/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 01:44:54,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f047764-8265-4d29-9da5-c5eaa7b30cdc/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:44:54,657 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-11-29 01:44:54,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:44:54,658 INFO L85 PathProgramCache]: Analyzing trace with hash -54553170, now seen corresponding path program 1 times [2023-11-29 01:44:54,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:44:54,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941588271] [2023-11-29 01:44:54,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:44:54,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:44:54,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:44:54,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:44:54,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:44:54,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941588271] [2023-11-29 01:44:54,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941588271] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:44:54,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:44:54,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 01:44:54,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507905415] [2023-11-29 01:44:54,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:44:54,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:44:54,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:44:54,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:44:54,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:44:54,717 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 95 [2023-11-29 01:44:54,717 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 73 transitions, 188 flow. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:44:54,717 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:44:54,717 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 95 [2023-11-29 01:44:54,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:45:07,758 INFO L124 PetriNetUnfolderBase]: 109065/141566 cut-off events. [2023-11-29 01:45:07,758 INFO L125 PetriNetUnfolderBase]: For 1129/1129 co-relation queries the response was YES. [2023-11-29 01:45:08,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 282106 conditions, 141566 events. 109065/141566 cut-off events. For 1129/1129 co-relation queries the response was YES. Maximal size of possible extension queue 8745. Compared 909580 event pairs, 87962 based on Foata normal form. 0/72263 useless extension candidates. Maximal degree in co-relation 282097. Up to 138206 conditions per place. [2023-11-29 01:45:08,571 INFO L140 encePairwiseOnDemand]: 92/95 looper letters, 59 selfloop transitions, 1 changer transitions 0/71 dead transitions. [2023-11-29 01:45:08,571 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 71 transitions, 304 flow [2023-11-29 01:45:08,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:45:08,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 01:45:08,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 113 transitions. [2023-11-29 01:45:08,573 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39649122807017545 [2023-11-29 01:45:08,573 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 113 transitions. [2023-11-29 01:45:08,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 113 transitions. [2023-11-29 01:45:08,573 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:45:08,573 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 113 transitions. [2023-11-29 01:45:08,574 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:45:08,575 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:45:08,575 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:45:08,576 INFO L175 Difference]: Start difference. First operand has 82 places, 73 transitions, 188 flow. Second operand 3 states and 113 transitions. [2023-11-29 01:45:08,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 71 transitions, 304 flow [2023-11-29 01:45:08,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 71 transitions, 282 flow, removed 2 selfloop flow, removed 5 redundant places. [2023-11-29 01:45:08,579 INFO L231 Difference]: Finished difference. Result has 77 places, 71 transitions, 164 flow [2023-11-29 01:45:08,579 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=164, PETRI_PLACES=77, PETRI_TRANSITIONS=71} [2023-11-29 01:45:08,580 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, -16 predicate places. [2023-11-29 01:45:08,580 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 71 transitions, 164 flow [2023-11-29 01:45:08,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:45:08,581 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:45:08,581 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2023-11-29 01:45:08,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 01:45:08,581 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-11-29 01:45:08,581 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:45:08,581 INFO L85 PathProgramCache]: Analyzing trace with hash -186146331, now seen corresponding path program 1 times [2023-11-29 01:45:08,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:45:08,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368425889] [2023-11-29 01:45:08,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:45:08,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:45:08,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:45:08,660 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:45:08,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:45:08,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368425889] [2023-11-29 01:45:08,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368425889] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:45:08,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [45150049] [2023-11-29 01:45:08,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:45:08,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:45:08,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f047764-8265-4d29-9da5-c5eaa7b30cdc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:45:08,662 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f047764-8265-4d29-9da5-c5eaa7b30cdc/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:45:08,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f047764-8265-4d29-9da5-c5eaa7b30cdc/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 01:45:08,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:45:08,818 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:45:08,819 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:45:08,852 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:45:08,852 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:45:08,900 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:45:08,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [45150049] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:45:08,900 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 01:45:08,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-11-29 01:45:08,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009865092] [2023-11-29 01:45:08,901 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 01:45:08,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:45:08,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:45:08,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:45:08,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:45:08,919 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 95 [2023-11-29 01:45:08,920 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 71 transitions, 164 flow. Second operand has 12 states, 12 states have (on average 17.166666666666668) internal successors, (206), 12 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:45:08,920 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:45:08,920 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 95 [2023-11-29 01:45:08,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:45:22,122 INFO L124 PetriNetUnfolderBase]: 109068/141578 cut-off events. [2023-11-29 01:45:22,122 INFO L125 PetriNetUnfolderBase]: For 1137/1137 co-relation queries the response was YES. [2023-11-29 01:45:22,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 282123 conditions, 141578 events. 109068/141578 cut-off events. For 1137/1137 co-relation queries the response was YES. Maximal size of possible extension queue 8745. Compared 909843 event pairs, 87962 based on Foata normal form. 3/72275 useless extension candidates. Maximal degree in co-relation 282114. Up to 138209 conditions per place. [2023-11-29 01:45:22,938 INFO L140 encePairwiseOnDemand]: 90/95 looper letters, 57 selfloop transitions, 13 changer transitions 0/80 dead transitions. [2023-11-29 01:45:22,938 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 80 transitions, 334 flow [2023-11-29 01:45:22,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 01:45:22,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-29 01:45:22,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 233 transitions. [2023-11-29 01:45:22,941 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.24526315789473685 [2023-11-29 01:45:22,941 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 233 transitions. [2023-11-29 01:45:22,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 233 transitions. [2023-11-29 01:45:22,942 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:45:22,942 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 233 transitions. [2023-11-29 01:45:22,943 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 23.3) internal successors, (233), 10 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:45:22,944 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 95.0) internal successors, (1045), 11 states have internal predecessors, (1045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:45:22,945 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 95.0) internal successors, (1045), 11 states have internal predecessors, (1045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:45:22,945 INFO L175 Difference]: Start difference. First operand has 77 places, 71 transitions, 164 flow. Second operand 10 states and 233 transitions. [2023-11-29 01:45:22,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 80 transitions, 334 flow [2023-11-29 01:45:22,946 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 80 transitions, 333 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 01:45:22,947 INFO L231 Difference]: Finished difference. Result has 88 places, 80 transitions, 237 flow [2023-11-29 01:45:22,948 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=237, PETRI_PLACES=88, PETRI_TRANSITIONS=80} [2023-11-29 01:45:22,948 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, -5 predicate places. [2023-11-29 01:45:22,949 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 80 transitions, 237 flow [2023-11-29 01:45:22,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 17.166666666666668) internal successors, (206), 12 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:45:22,949 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:45:22,949 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:45:22,956 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f047764-8265-4d29-9da5-c5eaa7b30cdc/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 01:45:23,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f047764-8265-4d29-9da5-c5eaa7b30cdc/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-29 01:45:23,150 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-11-29 01:45:23,150 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:45:23,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1691146948, now seen corresponding path program 1 times [2023-11-29 01:45:23,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:45:23,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127955913] [2023-11-29 01:45:23,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:45:23,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:45:23,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:45:23,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:45:23,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:45:23,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127955913] [2023-11-29 01:45:23,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127955913] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:45:23,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:45:23,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:45:23,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244787954] [2023-11-29 01:45:23,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:45:23,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:45:23,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:45:23,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:45:23,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:45:23,305 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 95 [2023-11-29 01:45:23,306 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 80 transitions, 237 flow. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:45:23,306 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:45:23,306 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 95 [2023-11-29 01:45:23,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:45:46,646 INFO L124 PetriNetUnfolderBase]: 176569/232137 cut-off events. [2023-11-29 01:45:46,646 INFO L125 PetriNetUnfolderBase]: For 1172/1172 co-relation queries the response was YES. [2023-11-29 01:45:47,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 460946 conditions, 232137 events. 176569/232137 cut-off events. For 1172/1172 co-relation queries the response was YES. Maximal size of possible extension queue 11261. Compared 1663973 event pairs, 61214 based on Foata normal form. 0/122016 useless extension candidates. Maximal degree in co-relation 460934. Up to 133423 conditions per place. [2023-11-29 01:45:48,168 INFO L140 encePairwiseOnDemand]: 88/95 looper letters, 109 selfloop transitions, 9 changer transitions 0/129 dead transitions. [2023-11-29 01:45:48,168 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 129 transitions, 578 flow [2023-11-29 01:45:48,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:45:48,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 01:45:48,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 162 transitions. [2023-11-29 01:45:48,170 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5684210526315789 [2023-11-29 01:45:48,170 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 162 transitions. [2023-11-29 01:45:48,170 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 162 transitions. [2023-11-29 01:45:48,170 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:45:48,170 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 162 transitions. [2023-11-29 01:45:48,171 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:45:48,172 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:45:48,172 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:45:48,172 INFO L175 Difference]: Start difference. First operand has 88 places, 80 transitions, 237 flow. Second operand 3 states and 162 transitions. [2023-11-29 01:45:48,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 129 transitions, 578 flow [2023-11-29 01:45:48,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 129 transitions, 567 flow, removed 3 selfloop flow, removed 2 redundant places. [2023-11-29 01:45:48,176 INFO L231 Difference]: Finished difference. Result has 90 places, 84 transitions, 282 flow [2023-11-29 01:45:48,176 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=282, PETRI_PLACES=90, PETRI_TRANSITIONS=84} [2023-11-29 01:45:48,177 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, -3 predicate places. [2023-11-29 01:45:48,177 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 84 transitions, 282 flow [2023-11-29 01:45:48,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:45:48,177 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:45:48,177 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:45:48,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 01:45:48,177 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-11-29 01:45:48,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:45:48,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1691146947, now seen corresponding path program 1 times [2023-11-29 01:45:48,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:45:48,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660316239] [2023-11-29 01:45:48,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:45:48,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:45:48,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:45:48,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:45:48,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:45:48,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660316239] [2023-11-29 01:45:48,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660316239] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:45:48,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:45:48,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:45:48,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779012956] [2023-11-29 01:45:48,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:45:48,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:45:48,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:45:48,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:45:48,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:45:48,285 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 95 [2023-11-29 01:45:48,285 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 84 transitions, 282 flow. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:45:48,285 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:45:48,285 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 95 [2023-11-29 01:45:48,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand